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Advanced Snail Mucin Power Sheet Mask

Advanced Snail Mucin Power Sheet Mask

Product Description

Product overview

Made in South Korea K-BEAUTY

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.

COSRX Brand 35,000 ppm Snail Mucin Fragrance-Free Dermatologist-Tested Sensitive-Skin Friendly Reef Safe Pregnancy-Friendly
Pregnancy
Yes
Fungal Acne
No
Comedogenic
1/5
Brand
COSRX
Hero Active
Snail Mucin 35,000ppm
Size
25ml / sheet
Format
Cellulose Sheet Mask
Skin Goal
Hydrate & Soothe
Real reviews · YouTube Shorts
Why it's different

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.

01

Texture & feel

SENSORY
Consistency
Watery Essence
Scent
Fragrance-Free
Absorption
Fast (15–20 min)
Finish
Dewy

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.

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.

02

Safety & compatibility

SAFE
Pregnancy & Breastfeeding

Contains no retinoids, salicylic acid, hydroquinone or chemical sunscreen filters, so it is generally considered safe. Always confirm with your doctor.

Fungal Acne (Malassezia)

Includes Polyglyceryl-10 Laurate and Polyglyceryl-10 Myristate, esters that may feed malassezia yeast — not recommended if you are fungal-acne prone.

Sensitive Skin

The Snail 96 essence is dermatologist-tested and patch-tested (Skin Irritation Test and HRIPT) as suitable for sensitive skin. Fragrance-free.

Tea Tree Leaf Oil

A trace amount of Melaleuca Alternifolia (Tea Tree) Leaf Oil is present. Generally well tolerated, but very reactive skin should patch test first.

Layering With Actives

Plays well with most routines — use after retinol, vitamin C or exfoliating acids to buffer and rehydrate the skin.

Reef Safe & Cruelty-Free Sourcing

Listed as reef safe; snail mucin is collected in a controlled, snail-friendly environment with no snails harmed.

03

Ingredient breakdown

INGREDIENTS

Snail 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.
Cruelty-free collection: snail mucin is gathered without harming the snails.

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.
Naturally contains limonene/linalool — very sensitive skin should patch test before full use.

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.

FREE FROM: Parabens · Sulfates · Silicones · Drying/Denatured Alcohols · Synthetic Fragrance · Common Allergens · Mineral Oil
04

Where it fits in your routine

ROUTINE
1
Cleanser
2
Toner
3
Sheet Mask
4
Serum / Essence
5
Moisturizer
6
Sunscreen (AM)

Use 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.

05

How to use

HOW TO USE
1

Cleanse & Tone

Wash with a gentle cleanser and apply toner to balance the skin so the essence absorbs better.

2

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.

3

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.

4

Remove & Pat In

Remove the sheet and gently pat the remaining essence into the skin. No need to rinse.

5

Seal It In

Follow with serum and moisturizer (plus SPF in the morning) to lock in the hydration.

06

Who is it for?

WHO

Perfect 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
07

Skin type compatibility

SKIN TYPES
Dry Skin
Excellent

Layered humectants flood thirsty skin with moisture and leave it soft and plump.

Sensitive Skin
Good

Fragrance-free and soothing; patch test recommended because of the trace tea tree oil.

Combination
Excellent

Lightweight, watery essence hydrates dry zones without overwhelming oilier areas.

Oily Skin
Good

Non-greasy hydration that absorbs fast; low comedogenic risk for shine-prone skin.

Acne-Prone
Moderate

Gentle and low-comedogenic for regular acne, but NOT fungal-acne safe due to polyglyceryl esters.

08

Results timeline

8 WEEKS+
Immediately (after 1 use)

Instant Plumping & Glow

Skin feels noticeably softer, more hydrated and looks dewy straight after removing the mask.

~90% noticed
1 Week (2–3 masks)

Calmer, Smoother Skin

Reduced tightness and rough texture; redness and irritation begin to look more settled.

~70% noticed
4 Weeks

Improved Comfort & Softness

With regular use, skin feels better hydrated and bouncier, with a healthier-looking surface.

~60% noticed
8 Weeks+

Maintained Barrier Support

Ongoing use as a hydration top-up helps keep the barrier comfortable; effects are supportive rather than permanent.

~45% noticed
09

Ratings by platform

4K+ REVIEWS
Walmart
4.9
Rating
200+
Reviews
Main complaint: Sheet can run large for smaller or petite faces
COSRX Official
4.8
Rating
1,000+
Reviews
Main complaint: Pricier per sheet than basic K-beauty masks
Amazon
4.6
Rating
3,000+
Reviews
Main complaint: Generous essence can drip during wear
Ulta
4.5
Rating
150+
Reviews
Main complaint: Hydration is temporary, not a true anti-aging treatment
10

Pros & cons

BALANCED

Praised

  • 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
11

Budget-friendly alternatives (dupes)

DUPES
85% Match
Snail Repair Intensive Essence
~$1.80
Budget Pick

Another snail-mucin sheet mask focused on repair and hydration. Simpler, lighter essence and lower price per sheet, with a slightly less drenched feel.

78% Match
Snail Bee High Content Essence
~$2.50
Similar

Combines snail mucin with bee venom and niacinamide for extra brightening and blemish support. More actives, so it can lightly tingle on sensitive skin.

72% Match
COSRX Snail 96 Mucin Essence + Cotton Mask (DIY)
~$1.50
Budget Pick

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.

12

Comparison with competitors

SIDE-BY-SIDE
Snail Repair Intensive Essence
Hero Active Snail Mucin (lower %)
Price / Sheet ~$1.80
Fragrance Light Scent
Fungal-Acne Safe Varies
Best For Budget Repair
No.3 Skin Softening Serum
Hero Active Niacinamide + Peptides
Price / Sheet ~$3.50
Fragrance Fragrance-Free
Fungal-Acne Safe Varies
Best For Glow & Tone
N.M.F Aquaring Ampoule Mask REX
Hero Active Hyaluronic Acid Complex
Price / Sheet ~$2.00
Fragrance Contains Fragrance
Fungal-Acne Safe Varies
Best For Pure Hydration
13

Storage & shelf life

12 MONTHS
Period After Opening (PAO)

12 months after opening

Storage

Store in a cool, dry place away from direct sunlight; each foil sachet is single-use, so apply immediately after opening.

Packaging

Individually sealed foil sachet (single-use). Sold as a single sheet or a box of 10.

Travel Friendly

Yes — flat, sealed sachets (25 ml each) are easy to pack and carry-on friendly.

13

Frequently asked questions

FAQ

It 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.

— Skincarisma verdict
4.5 / 5 ★★★★★

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

question
lightbulb What are Quick Product Notes?

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.

muscle Pro Tip Alert!

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.

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Quick Product Notes

Click on icons for more information
question
lightbulb What are Notable Effects & Ingredients?

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.

muscle Pro Tip Alert!

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

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Notable Effects & Ingredients

anti-aging Anti-Aging from 1 ingredient(s):
Snail Secretion Filtrate
brightening Brightening from 1 ingredient(s):
Glycerin
wound Promotes Wound Healing from 5 ingredient(s):
Glycerin Snail Secretion Filtrate Panthenol Allantoin Sodium Hyaluronate
question
lightbulb What are Ingredients Related to Skin Type?

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.

muscle Pro Tip Alert!

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!

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Ingredients Related to Skin Types

Click on icons for more information
dry-skin Dry Skin
4
oily-skin Oily/Acne-Prone Skin
1
sensitive-skin Sensitive Skin
1
question
lightbulb What is the Ingredient Safety Breakdown?

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.

muscle Pro Tip Alert!

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.

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Ingredient Safety Breakdown

EWG Health Ratings
Low risk
Medium risk
High risk
Unknown risk
68% 31%

Product ingredient list

Showing first 5 of 19 ingredients
EWG CIR Ingredient Name & Cosmetic Functions Notes
1 Unknown
Water
Solvent, Skin Conditioning
1 A
Butylene Glycol
Solvent, Skin Conditioning, Masking, Fragrance, Humectant, Viscosity Controlling, Viscositydecreasing Agent
Hydrating
2 A
Glycerin
Solvent, Perfuming, Fragrance, Humectant, Viscosity Decreasing Agent, Hair Conditioning, Skin Protecting, Denaturant, Skin Conditioning
brightening Brightening
Promotes Wound Healing
Hydrating
1 Unknown
Snail Secretion Filtrate
Skin Conditioning
anti-aging Anti-Aging
Promotes Wound Healing
1 A
1,2-Hexanediol
Solvent, Skin Conditioning
Hydrating
VIEW ALL INGREDIENTS