Advanced Snail Mucin Power Sheet Mask
Advanced Snail Mucin Power Sheet Mask
Product Description
Product overview
A fragrance-free Korean sheet mask by COSRX, drenched in 35,000 ppm of snail secretion filtrate (snail mucin) and supported by glycerin, panthenol and hyaluronic acid. In one 15–20 minute session it delivers deep hydration, barrier comfort and a plump, soothed, dewy finish — built on COSRX's bestselling Snail 96 Mucin essence.
35,000 ppm Snail Mucin
Around seven times more concentrated than typical snail masks. The essence floods skin with snail secretion filtrate's repairing glycoproteins, natural humectants and antioxidant vitamins.
Texture & feel
SENSORY35,000 ppm Snail Mucin
Around seven times more concentrated than typical snail masks. The essence floods skin with snail secretion filtrate's repairing glycoproteins, natural humectants and antioxidant vitamins.
Face-Hugging Cellulose Sheet
A thin, naturally-derived cellulose sheet clings closely to the contours of the face so the essence is absorbed efficiently instead of evaporating.
Fragrance-Free & Soothing
Allantoin, panthenol and licorice-root extract calm redness and irritation, with no added perfume — a gentle pick for reactive skin.
Instant Plumping Hydration
Glycerin and sodium hyaluronate top up moisture for soft, bouncy, visibly dewy skin straight after removing the mask.
Safety & compatibility
SAFEContains no retinoids, salicylic acid, hydroquinone or chemical sunscreen filters, so it is generally considered safe. Always confirm with your doctor.
Includes Polyglyceryl-10 Laurate and Polyglyceryl-10 Myristate, esters that may feed malassezia yeast — not recommended if you are fungal-acne prone.
The Snail 96 essence is dermatologist-tested and patch-tested (Skin Irritation Test and HRIPT) as suitable for sensitive skin. Fragrance-free.
A trace amount of Melaleuca Alternifolia (Tea Tree) Leaf Oil is present. Generally well tolerated, but very reactive skin should patch test first.
Plays well with most routines — use after retinol, vitamin C or exfoliating acids to buffer and rehydrate the skin.
Listed as reef safe; snail mucin is collected in a controlled, snail-friendly environment with no snails harmed.
Ingredient breakdown
INGREDIENTSSnail Secretion Filtrate ~2.2–3.3%Proven
The hero ingredient — the essence is dipped at 35,000 ppm. Snail mucin is a multi-tasker that hydrates, supports the skin barrier and helps soothe and repair damaged or post-blemish skin.
- Composition: Naturally contains glycoproteins, hyaluronic acid, glycolic acid, copper peptides and antioxidant vitamins A and E.
- Benefit: Acts as an effective humectant and is associated with improved moisturisation, elasticity and skin-repair support.
Glycerin ~2.9–4.3%Proven
A naturally occurring humectant that draws water into the skin. Its low molecular weight lets it pull moisture into deeper layers, helping support a healthy barrier.
- Research: A 2016 study found glycerin to be a more effective humectant than AHAs and hyaluronic acid.
Butylene Glycol HighProven
A lightweight humectant and solvent that hydrates while helping other water-soluble ingredients dissolve evenly into the formula and absorb into skin.
- Role: Conditions skin and improves spreadability; well tolerated by most skin types.
Panthenol (Pro-Vitamin B5) ~1.2–1.8%Proven
A pro-vitamin B5 humectant that penetrates the skin's layers to hydrate, soothe and reinforce the barrier — and is well known for its wound-healing support.
- Benefit: Strengthens the skin barrier, boosts hydration and helps reduce visible inflammation.
Sodium Hyaluronate ~0.1–0.5%Proven
The salt form of hyaluronic acid. It holds large amounts of water, acting as a powerful humectant that plumps and hydrates the surface of the skin.
- Note: Naturally found in the body; lower molecular weight than HA helps it sit smoothly in the formula.
Allantoin LowProven
A gentle soothing agent with protective and moisturising properties, frequently added to formulas to calm skin and support healing.
- Research: Higher concentrations have been shown to help promote wound healing.
Dipotassium Glycyrrhizate (Licorice Root) LowPromising
Derived from licorice root, with anti-inflammatory, antioxidant and brightening potential that helps calm redness and even tone over time.
- Actives: Glabridin offers soothing and pigment-blocking potential; liquiritin may help with overall brightness.
Melaleuca Alternifolia (Tea Tree) Leaf Oil TracePromising
A small amount of tea tree oil adds antioxidant, anti-inflammatory and antibacterial properties that may help blemish-prone skin.
- Research: Terpinen compounds can help reduce acne-causing bacteria; irritation is mainly linked to pure, undiluted oil rather than low levels in cosmetics.
19 ingredients
Water, Butylene Glycol, Glycerin, Snail Secretion Filtrate, 1,2-Hexanediol, Panthenol, Hydroxyacetophenone, Hexylene Glycol, Xanthan Gum, Dipropylene Glycol, Sodium Polyacrylate, Allantoin, Hydroxyethylcellulose, Sodium Hyaluronate, Disodium EDTA, Dipotassium Glycyrrhizate, Melaleuca Alternifolia (Tea Tree) Leaf Oil, Polyglyceryl-10 Laurate, Polyglyceryl-10 Myristate.
Where it fits in your routine
ROUTINEUse the mask after cleansing and toning, when skin is clean and slightly damp. Apply 1–3 times a week, or after sun exposure or strong actives, then seal everything in with moisturizer.
How to use
HOW TO USECleanse & Tone
Wash with a gentle cleanser and apply toner to balance the skin so the essence absorbs better.
Apply the Mask
Unfold the sheet and lay it evenly over the face, aligning the eye, nose and mouth openings, then smooth out air bubbles.
Relax 10–20 Minutes
Leave on for 10–20 minutes. Avoid over-wearing past 20 minutes, as the sheet can begin to dry out and pull moisture back.
Remove & Pat In
Remove the sheet and gently pat the remaining essence into the skin. No need to rinse.
Seal It In
Follow with serum and moisturizer (plus SPF in the morning) to lock in the hydration.
Who is it for?
WHOPerfect for you if:
- Your skin feels dry, tight, dull or dehydrated and needs a hydration boost
- You have sensitive or easily irritated skin and prefer fragrance-free formulas
- You want a quick, soothing treat after sun, travel or strong actives
- You like the COSRX snail line and want a mask version of the essence
- You want an affordable, beginner-friendly K-beauty mask
Consider alternatives if:
- You are fungal-acne (malassezia) prone — the polyglyceryl esters are a risk
- You want strong anti-aging or exfoliating actives (this is hydration-focused)
- You react to tea tree oil or essential-oil components
- You have a very small face and dislike oversized sheets
- You prefer reusable, low-waste products over single-use masks
Skin type compatibility
SKIN TYPESLayered humectants flood thirsty skin with moisture and leave it soft and plump.
Fragrance-free and soothing; patch test recommended because of the trace tea tree oil.
Lightweight, watery essence hydrates dry zones without overwhelming oilier areas.
Non-greasy hydration that absorbs fast; low comedogenic risk for shine-prone skin.
Gentle and low-comedogenic for regular acne, but NOT fungal-acne safe due to polyglyceryl esters.
Results timeline
8 WEEKS+Instant Plumping & Glow
Skin feels noticeably softer, more hydrated and looks dewy straight after removing the mask.
~90% noticedCalmer, Smoother Skin
Reduced tightness and rough texture; redness and irritation begin to look more settled.
~70% noticedImproved Comfort & Softness
With regular use, skin feels better hydrated and bouncier, with a healthier-looking surface.
~60% noticedMaintained Barrier Support
Ongoing use as a hydration top-up helps keep the barrier comfortable; effects are supportive rather than permanent.
~45% noticedRatings by platform
4K+ REVIEWSPros & cons
BALANCEDPraised
- Excellent, fast hydration that leaves skin soft and dewy
- Soothing and calming for irritated or sensitive skin
- Fragrance-free, gentle, dermatologist-tested formula
- Snug cellulose sheet with generous essence
- Great value in the 10-sheet box
- Pairs well with the wider COSRX snail mucin range
Criticized
- Not fungal-acne (malassezia) safe
- Sheet can be oversized for smaller faces
- Essence may drip while wearing
- Results are hydrating but temporary, not anti-aging
- Single-use sachets create more packaging waste
- Trace tea tree oil may bother very reactive skin
Budget-friendly alternatives (dupes)
DUPESAnother snail-mucin sheet mask focused on repair and hydration. Simpler, lighter essence and lower price per sheet, with a slightly less drenched feel.
Combines snail mucin with bee venom and niacinamide for extra brightening and blemish support. More actives, so it can lightly tingle on sensitive skin.
Soak a reusable cotton sheet with the bestselling Snail 96 essence for the same hero ingredient at a lower per-use cost. Less convenient but very low waste.
Comparison with competitors
SIDE-BY-SIDEStorage & shelf life
12 MONTHS12 months after opening
Store in a cool, dry place away from direct sunlight; each foil sachet is single-use, so apply immediately after opening.
Individually sealed foil sachet (single-use). Sold as a single sheet or a box of 10.
Yes — flat, sealed sachets (25 ml each) are easy to pack and carry-on friendly.
Frequently asked questions
FAQIt is generally considered pregnancy- and breastfeeding-friendly. It contains no retinoids, salicylic acid, hydroquinone or chemical sunscreen filters — the ingredients most often avoided during pregnancy. It does include a trace of tea tree leaf oil; while the amount is very small, you should always confirm with your doctor or midwife before adding any product during pregnancy.
No. The formula contains Polyglyceryl-10 Laurate and Polyglyceryl-10 Myristate, which are esters that can feed malassezia yeast. If you are prone to fungal acne (malassezia folliculitis), this mask is best avoided in favor of a fungal-acne-safe option.
Yes. Because it is a gentle, hydration-focused mask with no actives of its own, it layers well with retinol, vitamin C and exfoliating acids. In fact it works nicely as a buffering, rehydrating step after a strong active to calm and replenish the skin. Use the mask after those treatments, then seal with moisturizer.
It suits most skin types but is especially great for dry, dehydrated, combination and sensitive skin thanks to its fragrance-free, soothing, humectant-rich formula. Oily skin benefits from the lightweight hydration too. Those who are fungal-acne prone should choose an alternative.
Hydration and a soft, dewy glow are usually visible immediately after the first 15–20 minute use. With regular use 1–3 times a week, many people notice calmer, smoother skin within 1–4 weeks. Keep in mind the effects are about hydration and barrier comfort rather than permanent change.
Use it after cleansing and toning, before your serum and moisturizer. Apply the mask for 10–20 minutes, remove it, pat in the leftover essence, then follow with serum, moisturizer and (in the morning) sunscreen to lock everything in.
It has a low comedogenic rating (around 1/5). The formula is mostly humectants with no heavy oils, so it is unlikely to clog pores for most people. The main caveat is for those prone to fungal acne, as noted above.
Each mask comes in its own sealed single-use foil sachet, so it should be applied right after opening and not stored once opened. Unopened sachets typically carry a Period After Opening of around 12 months once the box is in use; store them in a cool, dry place away from direct sunlight and check the date on the packaging.
Verdict: The COSRX Advanced Snail Mucin Power Sheet Mask is an outstanding-value hydration treat. Drenched in 35,000 ppm of snail mucin alongside glycerin, panthenol and hyaluronic acid, it reliably leaves skin plumper, softer and visibly soothed after a single 15–20 minute session. It is fragrance-free, gentle enough for sensitive and reactive skin, and pregnancy-friendly. The two main caveats are that the polyglyceryl-10 esters make it unsuitable for fungal-acne-prone skin, and the large cellulose sheet can run big on petite faces. For everyday glow and barrier comfort, it remains one of the best beginner-friendly K-beauty masks available.
Product Overview
Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.
Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.
Quick Product Notes
Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging «promises» it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.
We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.
Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.
Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you
Notable Effects & Ingredients
Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.
We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.
A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.
One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!
Ingredients Related to Skin Types
Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.
EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.
Ingredient Safety Breakdown
Product ingredient list
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
| 1 |
Water
Solvent, Skin Conditioning
|
|
|
| 1 |
Butylene Glycol
Solvent, Skin Conditioning, Masking, Fragrance, Humectant, Viscosity Controlling, Viscositydecreasing Agent
|
Hydrating
|
|
| 2 |
Glycerin
Solvent, Perfuming, Fragrance, Humectant, Viscosity Decreasing Agent, Hair Conditioning, Skin Protecting, Denaturant, Skin Conditioning
|
Promotes Wound Healing
Hydrating
|
|
| 1 |
Snail Secretion Filtrate
Skin Conditioning
|
Promotes Wound Healing
|
|
| 1 |
1,2-Hexanediol
Solvent, Skin Conditioning
|
Hydrating
|






