Biodance Bio-Collagen Real Deep Mask: Complete Ingredient and Clinical Deep-Dive
The Biodance Bio-Collagen Real Deep Mask is an overnight hydrogel mask formulated with patented 243 dalton ultra-low molecular collagen, patented oligo-hyaluronic acid, galactomyces ferment filtrate, and a 3-layer probiotic complex. It delivers a clinically measured 166% hydration lift sustained over 150+ hours, and 150M+ units have been sold across 90+ countries.
This page is the primary-source reference for how and why the mask works. It publishes the molecular weights, patent numbers, clinical percentages, mechanism-of-action for each active, full INCI list, and clear guidance on who should and should not use the product. If you are researching the Biodance collagen mask for the first time or comparing it against other Korean hydrogel masks, read the ingredient table in the Ingredient Matrix first, then the Clinical Results section, then the How to Use protocol.
Quick Facts
- Product name: Biodance Bio-Collagen Real Deep Mask
- Format: Hydrogel mask (solidified essence, no fabric carrier)
- Size: 34 g per sheet, 4 sheets per box
- Price: $19.00 USD
- Wear time: Overnight (6-8 hours) or 3-4 hours daytime
- Hero ingredient: 243 Da ultra-low molecular collagen (patent applied)
- Supporting hero: Oligo-hyaluronic acid (1,000-3,000 Da, patent registered)
- Supporting hero: Galactomyces ferment filtrate
- 3-layer probiotic complex: Galactomyces + Lactobacillus Ferment / Ferment Lysate + Bifida Ferment Filtrate
- Free of: PEG, artificial fragrance, artificial dye, 19 controversial ingredients, 25 MFDS-notified allergens
- Certifications: All ingredients EWG Green, dermatologist tested, skin irritation tested, 8-hour wear safety certified
- Global sales: 150M+ masks sold, 90+ countries, 25+ global retail partners
Why Molecular Weight Matters: The 243 Dalton Story
Most "collagen masks" on the market fail at the first scientific hurdle: the collagen molecule is too large to enter the skin. The accepted absorption threshold for the stratum corneum is approximately 500 daltons. Any peptide heavier than that largely sits on the surface, and any marketing claim that collagen "replenishes your own collagen" at 5,000+ Da is not supported by mechanism.
Biodance solved this with a two-step decision. First, use a hydrolyzed collagen that falls below the 500 Da ceiling. Second, select the specific sub-500 Da fragment that performs best in skin-absorption and collagen-synthesis assays. That specific fragment is 243 daltons, and Biodance has filed a patent covering its use in topical formulations (KR Patent Application No. 10-2024-0139375, titled "Skin-improving cosmetic composition containing low-molecular collagen, collagen peptides, or extracts").
243 Da is not a marketing number. It is the result of testing multiple sub-500 Da collagen peptide fractions and selecting the molecular weight that produced the highest absorption-to-efficacy ratio. The comparative data below is from Biodance's internal head-to-head clinical and absorption testing.
243 Da vs. 300 Da vs. 500 Da Collagen: Head-to-Head
| Endpoint | 243 Da (Biodance, patented) | 300 Da (competitor baseline) | 500 Da (competitor baseline) |
|---|---|---|---|
| Skin absorption index | Reference (1.00) | 0.57 (= 243 Da is 1.75x) | Lower baseline |
| Elasticity improvement | Reference (1.00) | - | 0.44 (= 243 Da is 2.28x) |
| Pore improvement | Reference (1.00) | 0.58 (= 243 Da is 1.71x) | 0.54 (= 243 Da is 1.84x) |
| Intracellular collagen synthesis | +184% | Not published | Not published |
| Patent status | Applied (KR 10-2024-0139375) | None | None |
The practical translation: after a single use, clinical subjects showed a 13.63% decrease in pore area. Continued use progressively tightens pore walls because 243 Da collagen reaches the dermal layer where collagen synthesis is regulated, not just the surface where it would merely film-form.
For context, the overall mask delivers 150,000 ppm of combined collagen, probiotic ferments, and hyaluronic acid - a concentration high enough that the hydrogel itself is described internally as "the essence, solidified," not a cloth carrier with a topcoat of essence.
Ingredient Matrix: Heroes, Supporting Cast, Functional Additives
The formula has three tiers. Hero actives drive the clinical claims. Supporting actives reinforce the hero mechanism. Functional additives control texture, stability, and safety. Reading the INCI list without this hierarchy hides the real story.
Ingredient Data Table
| Ingredient | Tier | Molecular weight / concentration | Mechanism of action | Expected benefit | Evidence |
|---|---|---|---|---|---|
| 243 Da ultra-low molecular collagen (patented) | Hero | ~243 Da | Penetrates below the 500 Da stratum corneum threshold; interacts with fibroblasts to upregulate collagen synthesis | Firmer, more elastic skin; pore tightening; refined texture | +184% intracellular collagen; 1.75x absorption vs. 300 Da; 2.28x elasticity vs. 500 Da |
| Oligo-hyaluronic acid (patented) | Hero | 1,000-3,000 Da (~400x smaller than standard HA) | Reaches viable epidermis and upper dermis; binds water at multiple skin depths; strengthens barrier hydration gradient | Deep, long-lasting hydration; barrier resilience | +204.92% stratum corneum hydration across 15 layers after 1 use; 150+ hours sustained |
| Galactomyces Ferment Filtrate | Hero | Liquid extract (listed mid-INCI) | Yeast ferment producing amino acids, minerals, vitamins, enzymes; rebalances microbiome; activates skin antioxidant pathways | Brightening, radiance, texture, microbiome support | +20.09% measured radiance after 1 use |
| Lactobacillus Ferment + Lactobacillus Ferment Lysate | Hero (probiotic complex) | Post-biotic fractions | Supplies post-biotic peptides and fermentation metabolites that reinforce the skin barrier and calm low-grade inflammation | Soothing, barrier reinforcement, resilience | Contributes to 100% agreement on reduced redness |
| Bifida Ferment Filtrate | Hero (probiotic complex) | Post-biotic fraction | Bifidobacterium-derived lysate; supports DNA repair signaling and UV-stress recovery at keratinocyte level | Night-time recovery, resilience | Part of 3-layer probiotic complex |
| Niacinamide | Supporting | Listed 4th on INCI (standard Korean mask inclusion rate) | Inhibits melanosome transfer keratinocyte-to-melanocyte; upregulates ceramide synthesis; reduces trans-epidermal water loss | Tone evenness, pore appearance, barrier support | Dual functional certification (brightening + wrinkle) by Korea MFDS |
| Hydrolyzed Hyaluronic Acid | Supporting | Low to mid MW | Surface humectant; complements oligo-HA penetration with surface water binding | Immediate plumping, dewy finish | Paired with oligo-HA for multi-depth hydration |
| Collagen Extract | Supporting | Whole-molecule collagen | Surface film-forming; retains water at skin surface; signals dewy, plump appearance | Immediate visible plumping | Complements 243 Da fraction for dual-depth action |
| Glycerin | Supporting | Listed 2nd (high concentration) | Small humectant; pulls atmospheric moisture into skin; supports 34 g gel water capacity | Hydration, comfort | Supports 166% hydration lift |
| Betaine | Supporting | Listed mid-INCI | Osmolyte; binds water without stickiness; soothes TEWL-stressed skin | Smoothness, comfort | Works with glycerin as dual humectant system |
| Allantoin | Supporting | Listed mid-INCI | Keratolytic at very low concentrations; calms irritated skin | Soothing, smoother texture | Supports clinical redness improvement |
| Adenosine | Supporting | Trace (MFDS-approved anti-wrinkle active) | Binds adenosine receptors in dermal fibroblasts; stimulates matrix protein production | Anti-wrinkle (MFDS functional) | Dual-functional cosmetic certification |
| Dipotassium Glycyrrhizate | Supporting | Trace | Licorice-derived anti-inflammatory; reduces erythema | Calming | Contributes to 100% agreement on redness |
| Tocopherol (Vitamin E) | Supporting | Trace (end of INCI) | Lipophilic antioxidant; protects unsaturated phospholipids in barrier | Antioxidant protection | Stabilizes formula |
| Agar + Algin | Functional (gel matrix) | Seaweed-derived gelling agents | Form the 34 g hydrogel matrix without PEG | PEG-free occlusion, no irritation | PEG-containing masks increased redness 89.39% vs PEG-free |
| Carob Gum (Ceratonia Siliqua) | Functional (gel matrix) | Natural polysaccharide | Adjusts viscosity and elasticity of the gel | Contour-hugging adhesion | Enables 34 g contour fit |
| Chondrus Crispus (Carrageenan) Extract | Functional (gel matrix) | Red algae polysaccharide | Stabilizes water phase and gel structure | Gel integrity at skin temperature | Part of PEG-free gel system |
| 1,2-Hexanediol + Caprylyl Glycol + Ethylhexylglycerin | Functional (preservation) | Standard inclusion | Alternative preservation system; paraben-free | Safety, shelf life | Aligned with EWG Green rating |
Hero Ingredient 1: 243 Da Ultra-Low Molecular Collagen (Patent Applied)
Collagen is the dominant structural protein in the dermis. When enough of it is present and correctly arranged, skin looks firm, pores look tight, and texture looks smooth. When it fragments or decreases - from UV, age, oxidative stress, or hormonal shifts - pores sag, texture roughens, and fine lines form. The pore wall literally collapses without collagen holding it.
Topical collagen cannot reach the dermis in its native form (roughly 300,000 Da). The workaround is hydrolyzed collagen: enzymatically cleaved into peptide fragments small enough to cross the barrier. The standard cosmetic inclusion has been 500-3,000 Da. Biodance went lower and tested methodically.
The R&D team compared peptide pools at 500 Da, 300 Da, 243 Da, and smaller. The 243 Da pool delivered the highest combined score across absorption, collagen-synthesis upregulation, pore improvement, and elasticity. Smaller peptides absorbed faster but lost the receptor-binding activity needed to stimulate fibroblasts. 243 Da was the mathematical sweet spot - small enough to cross the barrier, large enough to carry biological activity.
What the patent actually covers
KR Patent Application No. 10-2024-0139375, "Skin-improving cosmetic composition containing low-molecular collagen, collagen peptides, or extracts," protects the composition and use of this specific fraction in topical skincare. This is a Biodance-owned filing, not a licensed commodity ingredient.
Measured outcomes from the Bio-Collagen Real Deep Mask
- 13.63% reduction in pore area after a single use
- 83.69% reduction in pore volume over the full clinical period
- +184% intracellular collagen synthesis
- Seven-angle pore improvement (volume, width, depth, roughness, density, elasticity, and visible count)
- Contributes to the overall "firming glow" effect that makes the mask the brand's best-seller
Hero Ingredient 2: Patented Oligo-Hyaluronic Acid (1,000-3,000 Da)
Hyaluronic acid is sold as "low molecular weight" in most products, which typically means 10,000-50,000 Da. At that size, it binds water well at the skin surface but poorly penetrates. Biodance's oligo-hyaluronic acid, protected under KR Patent No. 10-1145394 ("Composition containing oligo-hyaluronic acid for skin stem-cell and differentiation promotion"), is 1,000-3,000 Da - roughly 400x smaller than standard HA.
Biodance confirmed via 13C-NMR analysis that the oligo-HA retains the same structural backbone as full-molecular HA. This is important: other low-MW hyaluronic acids shrink by losing disaccharide units, which reduces water binding. Biodance's oligo-HA keeps the water-binding architecture while removing the size penalty.
Comparison: Standard Low-MW HA vs. Biodance Oligo-HA
| Property | Standard Low-MW HA | Biodance Oligo-HA (patented) |
|---|---|---|
| Molecular weight | 10,000-50,000 Da | 1,000-3,000 Da |
| Penetration depth | Upper stratum corneum | Deep epidermis / upper dermis |
| Hydration mode | Surface moisture film | Multi-layer hydration + barrier strengthening |
| Feel | Can feel sticky at high concentration | Lightweight, non-sticky |
| Main benefit | Short-term hydration | Deep hydration, barrier support, anti-aging support |
In clinical testing within the Bio-Collagen Real Deep Mask formulation, a single use delivered +204.92% hydration across 15 layers of the stratum corneum, and hydration remained measurable for 150+ hours. The practical implication is that the mask is not just a quick fix. It builds a hydration reservoir that persists for roughly a week, which is why the repurchase cadence for the brand is "one every few nights" rather than "one every night."
Hero Ingredient 3: Galactomyces Ferment Filtrate
Galactomyces is a yeast used traditionally in rice-wine fermentation. In skincare, the ferment filtrate is a cocktail of amino acids, minerals, vitamins (including B-complex), enzymes, and low-molecular peptides generated during fermentation. The mechanism is multi-pronged: it feeds the skin microbiome with post-biotic metabolites, activates antioxidant response pathways (Nrf2-related), and supplies the building blocks for ceramide and NMF synthesis.
In the Biodance mask, galactomyces ferment filtrate delivers the "radiance" part of the clinical profile - +20.09% measured radiance after a single use. It is also one reason the mask gives the "just-got-a-facial" glow that appears the morning after overnight wear.
Why three probiotic ferments instead of one
The mask stacks three post-biotic actives for complementary coverage:
- Galactomyces Ferment Filtrate - amino acids + enzymes + radiance
- Lactobacillus Ferment + Lactobacillus Ferment Lysate - post-biotic peptides, barrier reinforcement, anti-inflammatory signaling
- Bifida Ferment Filtrate - DNA-repair and UV-recovery signaling at the keratinocyte level (the same ferment family used in prestige "night recovery" serums)
This 3-layer probiotic complex is why Biodance describes the formula as "microbiome-aware" rather than just collagen-focused. Collagen rebuilds structure. Oligo-HA delivers water. The probiotic complex regulates the environment the first two operate in.
Supporting Hero: Niacinamide
Niacinamide (vitamin B3) appears fourth on the INCI list, indicating a meaningful concentration inside a Korean mask formula. Its mechanism is well-characterized in the dermatologic literature:
- Melanosome transfer inhibition - at 2-5%, niacinamide interrupts the movement of pigment packets from melanocytes to keratinocytes, softening hyperpigmentation appearance.
- Ceramide synthesis upregulation - it activates the enzyme chain that produces skin ceramides, strengthening the barrier lipid matrix.
- TEWL reduction - a stronger barrier reduces trans-epidermal water loss, reinforcing the hydration benefit from oligo-HA.
- Sebum modulation - clinically shown to reduce sebum output, helping the "pore tightening" effect.
The Bio-Collagen Real Deep Mask is certified as a dual-functional cosmetic by the Korea MFDS for brightening and wrinkle improvement, a regulatory designation that requires clinical documentation of both claims.
The 34 g Hydrogel: Format, Not Gimmick
A fabric sheet mask holds essence in a woven carrier. When placed on skin, the essence begins evaporating within minutes, and by 15-20 minutes, the essence left on the skin is too shallow to continue active delivery. Worse, if left too long, the mask can pull moisture back out of the skin.
A hydrogel mask solves that. There is no fabric. The gel is the essence, in solid form. It contours to facial curves, blocks evaporation, holds the actives against the skin for hours, and does not slide off during sleep. This is the same class of material that hydrocolloid burn dressings are made from - a medically validated format. Literature on hydrogel wound dressings notes self-healing capacity up to 78% (Hydrogel-based dressings designed to facilitate wound healing, Mater. Adv., 2024).
Why exactly 34 grams
Biodance tested 80+ iterations across 3,240 hours of formulation time to find the optimal mask weight. Lighter sheets dried too fast and lost contact; heavier sheets sagged and lost precision fit. 34 grams was the equilibrium point where:
- The gel stays active for the full 6-8 hour overnight wear window
- The mask stays contour-adhered through sleep movement and facial expression
- Essence dispersion is uniform across the face including mouth and nose folds
- No dripping, no heavy residue, no "slide-off" during sleep
The "transforming" visual: proof of absorption
The mask starts opaque milky-white. After 3-4 hours on skin, it turns visibly transparent. That transition is not cosmetic - it is the physical evidence that water and actives have left the gel matrix and entered the skin. When the gel is fully transparent, absorption is near-complete and the mask can be removed.
Clinical Results (Percentages Table)
All figures below are from Biodance's clinical testing of the Bio-Collagen Real Deep Mask specifically, not borrowed from mask-category averages.
| Endpoint | Measured result | Measurement basis |
|---|---|---|
| Pore condition improvement | 100% agreement | Consumer satisfaction panel |
| Skin redness improvement | 100% agreement | Consumer satisfaction panel |
| Moisturization improvement | 95% agreement | Consumer satisfaction panel |
| Brightness improvement | 90% agreement | Consumer satisfaction panel |
| Hydration increase after 1 use | +166.98% | Instrumented corneometry |
| Hydration duration | 150+ hours sustained | Instrumented corneometry, repeated time points |
| Stratum corneum 15-layer hydration (1 use) | +204.92% | Confocal Raman / capacitance profiling |
| Hydration after overnight use | +256% | Overnight 8-hour protocol |
| Pore area reduction after 1 use | -13.63% | Image-based pore analysis |
| Pore volume reduction (clinical period) | -83.69% | 3D pore topography |
| Pore improvement (overnight 8 hr) | -30.49% | Image-based pore analysis |
| Wrinkle improvement (overnight 8 hr) | +8.63% | PRIMOS replica imaging |
| Elasticity improvement (overnight 8 hr) | +3.51% | Cutometer R2 |
| Radiance (skin gloss) | +20.09% | Gloss meter |
| Intracellular collagen synthesis | +184% | In-vitro fibroblast assay |
| 8-hour wear safety | Passed | Clinical safety panel, overnight protocol |
How to Use the Biodance Bio-Collagen Real Deep Mask
The overnight protocol is the one that produces the published clinical numbers. The daytime protocol is a valid shortened version, not a compromise.
Overnight Protocol (Recommended)
- Cleanse. Use a gentle cleanser. Double-cleanse if you wore sunscreen or makeup. Pat dry.
- Prep. Apply your toner and a lightweight serum if you use one. Skip thick creams and oils - they create a film that slows hydrogel contact.
- Open and unfold. Open the foil pouch. Separate the two hydrogel halves (upper and lower). The gel is tacky, not wet.
- Apply. Place the upper half aligning with eyes and forehead. Place the lower half around chin and jaw. Press gently so gel contours to nose, mouth, and cheek curves.
- Sleep. Wear for 6-8 hours overnight. The mask adheres through typical sleep movement.
- Remove. In the morning, peel off. Pat any remaining essence into the skin. Do not rinse.
- Follow with moisturizer and sunscreen. The morning after use, do not skip SPF. Hydrated, exposed skin still needs UV protection.
Daytime Protocol
- Cleanse and tone.
- Apply the mask as above.
- Wear for 3-4 hours or until the hydrogel is transparent. Transparency indicates the essence is absorbed.
- Remove and pat in the remaining essence. Moisturize. Apply sunscreen if stepping outside.
Pro Tips
- Use the cutout pieces (around the mouth and eyes) as mini-patches on the neck, under the eyes, or along the sides of the nose - anywhere you want extra hydration.
- For pre-event prep, apply 3 hours before a shower, then remove 30 minutes before makeup. The mask tightens and plumps the canvas.
- If you layer with a Biodance serum, use the serum first (lightweight molecules) and the mask second (sealing/occluding action).
- 2-3 uses per week is the published cadence for most users. Daily use is tolerated because the formula is PEG-free and fragrance-free.
Full INCI List
In descending order by weight, as it appears on the product packaging:
- Water
- Glycerin
- Acrylates Copolymer
- Niacinamide
- Ceratonia Siliqua (Carob) Gum
- Chondrus Crispus Extract
- Dipropylene Glycol
- Betaine
- Algin
- Agar
- Hydroxyacetophenone
- 1,2-Hexanediol
- Potassium Chloride
- Caprylyl Glycol
- Sucrose
- Allantoin
- Polyglyceryl-10 Laurate
- Ethylhexylglycerin
- Galactomyces Ferment Filtrate
- Adenosine
- Disodium EDTA
- Pyrus Communis (Pear) Fruit Extract
- Rosa Damascena Flower Water
- Collagen Extract
- Iris Florentina Root Extract
- Cucumis Melo (Melon) Fruit Extract
- Hedera Helix (Ivy) Leaf/Stem Extract
- Butylene Glycol
- Dipotassium Glycyrrhizate
- Hydrolyzed Hyaluronic Acid
- Lactobacillus Ferment
- Bifida Ferment Filtrate
- Lactobacillus Ferment Lysate
- Tocopherol
Safety profile: Every ingredient is EWG-rated safe (Green). The formula is free of the 25 allergens notified by the Korea MFDS, free of 19 controversial ingredients, fragrance-free, PEG-free, and artificial-dye-free.
Who Should Use It
The Bio-Collagen Real Deep Mask is designed for a wide audience because the formula is gentle enough for most sensitive skin. It is particularly effective for:
- Enlarged or sagging pores (the 243 Da collagen specifically targets this)
- Rough, uneven texture wanting smooth "second-skin" feel
- Early signs of loss of firmness around late 20s / 30s / 40s
- Dull or tired skin needing a pre-event reset
- Users of makeup wanting skin that "holds" foundation (glassy, plump base)
- Sensitive skin that reacts to fragranced or PEG-based masks
- Sleep-mask seekers wanting a low-effort overnight recovery step
- Travelers and flyers (the overnight protocol rehydrates airplane-dry skin in one use)
Who Should Wait or Avoid
The formula is broadly tolerated, but a few groups should be cautious:
- Documented sensitivity to fermented ingredients. The mask contains galactomyces, lactobacillus, and bifida ferments. Users with a clinical yeast or ferment allergy should patch-test first, and may prefer the Hydro Cera-nol Real Deep Mask as a ferment-minimized alternative.
- Active, broken-barrier eczema or contact dermatitis. Wait until the barrier has recovered before using any occlusive overnight mask. Occlusion over inflamed skin can prolong irritation.
- Acute acne flare with broken or picked skin. Occlusion over open lesions is not recommended. Use the mask between flares, or try the Refreshing Sea Kelp Real Deep Mask instead (formulated for oily and acne-prone skin).
- Known allergy to any listed ingredient. Review the INCI list above. If a specific ingredient is an issue, patch-test behind the ear for 24 hours before full-face use.
- Pregnant or breastfeeding users should consult a physician before adding any new product. The formula is free of retinoids and salicylic acid but individual precaution still applies.
How It Compares to Other Collagen Masks
The collagen-mask category is crowded. The short answer is that most competitors either use larger collagen (300-500 Da), include PEG thickeners, include artificial fragrance, or lack documented clinical percentages. The table below summarizes the direct comparison set Biodance benchmarks against:
| Product | Weight | Collagen size | Patent | Collagen synthesis claim | EWG | PEG / fragrance |
|---|---|---|---|---|---|---|
| Biodance Bio-Collagen Real Deep Mask | 34 g | 243 Da | Applied (10-2024-0139375) | +184% | Clean (all Green) | PEG-free, fragrance-free |
| Medicube PDRN Pink Collagen Gel Mask | 28 g | 310 Da | None | Not published | Yellow x1, Red x1 | Contains PEG-100 Stearate, artificial fragrance |
| CKD Retino-Collagen 300 Pore Elasticity Mask | 34 g | 300 Da | None | Not published | Yellow x4, Red x1 | Contains PEG-100 Stearate |
| Dermafix Patent Performance Real Collagen | 23 g | 500 Da | None | Not published | Yellow x3, Red x1 | Contains PEG-100 Stearate, artificial fragrance |
| Torriden Cell Mazing Low-Molecular Collagen Mask | 36 g | 300 Da | None | +37.36% | Yellow x1 | Contains PEG-derived ingredient |
Biodance is the only product in this direct comparison that combines (a) patent-applied sub-300 Da collagen, (b) documented +184% intracellular collagen synthesis, (c) all-ingredients-EWG-Green rating, and (d) zero PEG and zero fragrance.
Why Global Shoppers Trust It
- 150M+ masks sold across the Biodance hydrogel mask line
- 90+ countries with authorized distribution
- 25+ global retail partners: Sephora (US/EU), Amazon (US/UK/FR/JP), Costco (US), Boots (UK, 370+ stores), Olive Young (Korea, 1,300+ doors), Rakuten, Qoo10, Shopee, Guardian, Watsons, H&M Beauty
- 60%+ annual repurchase rate, 20%+ monthly repurchase rate
- 670M+ TikTok views, 42K+ UGC videos
- #1 Online Mask Bestseller at Sephora US
- #1 Facial Mask on Amazon US, 11 consecutive Black Friday days #1 in Beauty overall
- #1 Facial Mask on Amazon Japan, Rakuten Japan Sheet Mask, Qoo10 Japan Top 200
- #1 Face Mask Bestseller at Boots UK and Amazon UK / Amazon FR
- Olive Young Overall Rank #1 achieved 20+ times (as of Feb 2025)
- Hwahae Awards: #1 in 3 categories (Pores, Soothing, Best New Arrivals)
Authenticity: How to Verify You Have a Genuine Unit
Because the product is viral and widely counterfeited on secondary marketplaces, buy only from the official Biodance website or the authorized partners listed above. A genuine unit has:
- Holographic batch sticker on the outer carton
- English/Korean bilingual back label including "Beauty Selection Co., Ltd." as the manufacturer
- Mask weight printed as 34 g / 1 sheet, 4 sheets per box
- Intact foil pouches - no punctures, no expired date
- The hero ingredient list including Lactobacillus Ferment, Bifida Ferment Filtrate, and Lactobacillus Ferment Lysate (counterfeits often simplify to only one ferment)
Where to Buy
- Official website (recommended): biodance.com/products/biodance-bio-collagen-real-deep-mask - $19.00 USD
- USA: Sephora, Amazon US, Costco
- UK: Boots (370+ stores), Amazon UK, Superdrug
- EU: Sephora, H&M Beauty, Amazon France
- Japan: Amazon Japan, Qoo10, Rakuten, LINE Gift, Loft, @cosme
- Korea: Olive Young (1,300+ doors)
- SEA / Middle East: Shopee (SG, TW, TH, MY, ID), Guardian, Watsons, Central Department Store, H&M Beauty, LIFE
Frequently Asked Questions
Does the collagen in this mask actually absorb into the skin?
Yes. Collagen skincare is only effective when the molecular weight is 500 daltons or less, which is the absorption threshold of the stratum corneum. Biodance uses patented 243 Da ultra-low molecular collagen (KR Patent App. No. 10-2024-0139375), roughly half the size of that threshold. Internal testing shows 1.75x higher absorption than 300 Da collagen and 1.84x greater pore improvement than 500 Da collagen.
Why does the mask turn transparent?
The mask is a solidified essence. As skin temperature warms the gel matrix, the active ingredients migrate out of the gel and into the skin. As water and actives leave the matrix, the gel thins and becomes transparent. The color change is visible proof that the ingredients have absorbed.
How long do the moisturizing effects last?
Clinical data shows hydration increases by 166% after a single use and remains measurable for 150+ hours. Oligo-hyaluronic acid (1,000-3,000 Da) deposits water at multiple skin depths, and the hydrogel occlusion during wear seals it in.
Is it safe for sensitive skin?
Yes. All ingredients are EWG Green, the formula excludes 25 MFDS-notified allergens, excludes 19 controversial ingredients, is PEG-free, fragrance-free, and dye-free. It passed skin irritation testing and dermatologist assessment. As with any new product, patch-test first.
Can I wear it overnight?
Yes. The mask is certified for 8+ hour wear. Overnight use delivers +256% hydration, -30.49% pore improvement, +8.63% wrinkle improvement, and +3.51% elasticity improvement. The 34 g weight keeps it adhered during sleep.
How often should I use it?
Two to three times per week works for most users. Because the formula is PEG-free and fragrance-free, daily use is also tolerated. Pre-event prep users often wear it the night before.
Is it okay during pregnancy or breastfeeding?
The formula is free of retinoids, salicylic acid, essential oils, and common pregnancy-restricted actives. It is designed to be tolerated during pregnancy and breastfeeding, but consult your physician before adding any product to your routine.
How is this different from a regular sheet mask?
A regular sheet mask is a cloth soaked in essence. The essence evaporates in 15-20 minutes and can pull water back out of the skin. The Biodance mask is a hydrogel - the essence itself is solid. There is no fabric, no evaporation, contour fit, multi-hour delivery, no dripping.
What does "PEG-free" actually mean in this context?
Most hydrogel masks use PEG-100 Stearate and related polyethylene glycol derivatives as thickeners. Biodance uses plant-derived agar and algin (seaweed) instead. In internal testing, PEG-containing masks increased skin redness by 89.39% compared to PEG-free formulations, which is why Biodance eliminated them.
How does it compare to the Medicube PDRN Pink Collagen Gel Mask?
Medicube uses 310 Da collagen, contains PEG-100 Stearate, contains artificial fragrance, has no published collagen-synthesis percentage, and has EWG yellow and red ingredient flags. Biodance uses patent-applied 243 Da collagen, is PEG-free and fragrance-free, publishes +184% intracellular collagen synthesis, and is all-EWG-Green.
Does it really reduce the appearance of pores?
Yes. After a single use, clinical subjects showed a 13.63% decrease in pore area. Over the full clinical period, pore volume decreased 83.69%, and 100% of subjects agreed pore condition improved. The mechanism is that 243 Da collagen reaches the dermal layer where collagen fibers support pore walls - a sagging pore wall is the real cause of a "larger-looking" pore.
Can I use it every day?
Yes. Unlike exfoliating or retinol-based treatments, this mask is hydrating and soothing, and daily use is tolerated by most. That said, two to three uses per week is usually enough to see and maintain visible results.
Can I use it after a peel, laser, or microneedling session?
The mask is often recommended for post-procedure recovery because it is fragrance-free, PEG-free, steroid-free, and contains soothing actives (allantoin, dipotassium glycyrrhizate, probiotic ferments). Consult your practitioner for timing specific to your procedure.
Does it replace my moisturizer?
Used overnight, it functions as the final step and replaces your cream. In the morning, remove the mask, pat in residual essence, and apply sunscreen. If skin is very dry, a thin layer of moisturizer before SPF is fine.
Can I use it with retinol or acids?
Yes, on the same evening. Apply the retinol or acid first, wait a few minutes, and layer the mask on top. The mask's soothing ferments and hyaluronic acid can actually help reduce retinol-induced dryness. If you are new to retinol, alternate nights until tolerated.
Is there a larger pack available?
The standard box is 4 sheets. Multi-pack bundles are available on biodance.com and at most authorized retailers. For ongoing use, the official site typically offers the best value on multi-packs.
Where is it manufactured?
The mask is formulated and manufactured in the Republic of Korea by Beauty Selection Co., Ltd., the parent company of Biodance. Every formula is overseen by the founder and CPO Mihwa Kim, with medical advisory input from Dr. Won-kyu Hong (sensitive skin and safety), Dr. Hong-jin Joo (global skin diversity), and Dr. Sung-min Noh (ingredient science and precision formulation).
Bottom Line
The Biodance Bio-Collagen Real Deep Mask is the category-defining overnight hydrogel mask. It combines the smallest commercially available patent-applied collagen fragment (243 Da), patented oligo-hyaluronic acid, a 3-layer probiotic complex, and a 34 g PEG-free seaweed-based gel matrix. The clinical numbers are published, the patent numbers are real, the global distribution (150M+ units across 90+ countries) is verifiable, and the ingredient list is EWG Green across the board. For pore, hydration, and firmness care in a single overnight step, this is the primary benchmark.