Snail Mucin Is a Dermatologist-Approved Moisturizer You Should Know About

snail mucin

Liz deSousa for BYRDIE

Also known as snail slime, snail mucin is one of the buzziest new ingredients in the skincare world. Yes, snails, as in the little critters that live in your garden or show up on the menu at fancy French restaurants. There's a certain ick factor involved, to be sure, but if you can get over that, snail mucin is a surprisingly effective ingredient. Dermatologists do point out that it's not yet quite as well-studied as many of its other skincare ingredient counterparts, and, as such, that it's important to sort out the science from the hype.

Meet the Expert

  • Sheel Desai-Solomon, MD, is a board-certified dermatologist in Raleigh-Durham, NC.
  • Ted Lain, MD, is a dermatologist in Austin, TX.

Ahead, experts help you figure out whether or not it's worth making snail slime a part of your skincare routine.

Snail Mucin

Type of Ingredient: Moisturizer and collagen-stimulator

Main Benefits: Moisturizes skin, promotes collagen production, aids in skin healing and regeneration.

Who Should Use It: In general, snail mucin can be used on all skin types, though its hydrating properties make it especially choice for those with dry skin, says Lain. And unless you’re allergic to the ingredient, it’s generally well-tolerated by most. (Though keep in mind that since it is derived from an animal vegans should take a pass).

How Often Can You Use It: This largely depends on why you're using it—since it does have many benefits—and what type of product it's found in. Generally speaking, you can use snail mucin once or twice per day.

Works Well With: It’s often combined with antioxidants and retinol, as well as common skincare staples such as vitamin C, glycolic acid, and other moisturizing ingredients.

Don't Use With: Because research is still limited, it's unknown whether or not it interacts poorly with any other ingredients, says Lain. Right now, there's no evidence that it does.

What Is Snail Mucin?

Simply put, it’s the excretion from a snail, which is why it’s also known and appears on ingredient labels as snail secretion filtrate, or SSF. Snail mucin is naturally created and used by snails as a way for them to protect themselves, says Desai-Solomon. “It’s a trusted ingredient in the K-beauty world and has become a popular one because it can offer noticeable results,” she adds. Worth noting: This isn’t an excretion that comes out whenever the snail moves, but rather a substance that's excreted when the snail is under stress, points out Lain (more on the importance of that in a minute).

Benefits of Snail Mucin for Skin

Snail mucin is a mega multi-tasker, with the ability to do everything from moisturizing to boosting the production of collagen, the protein responsible for strong, youthful skin, to improving wrinkles.

  • Moisturizes the skin: According to Lain, snail mucin contains moisturizing agents that work to repair the barrier function of the skin, both locking out irritants from the environment while also simultaneously locking in moisture.
  • Stimulates collagen production: “Because snail mucin is a stress-induced excretion, it's comprised of ingredients meant to repair or protect from injury," Lain explains. "These include growth factors, which work by triggering the growth of new skin cells and new collagen.” And, as we know, more collagen equals fewer wrinkles and younger-looking skin. Desai-Solomon adds that it also contains glycolic acid, another known collagen-booster.
  • Soothes irritation: Allantoin is another key component in secretion, an ingredient with healing properties that calms irritation, smoothes the skin, and stimulates cell regeneration.
  • Delivers important vitamins and minerals:  Snail mucin is loaded with a list of good-for-your-skin nutrients, including anti-inflammatory zinc and healing manganese. It contains copper peptides, also lauded for their collagen-increasing and wrinkle-decreasing effect. It also contains vitamins A and E, both of which are great antioxidants.

Side Effects of Snail Mucin

“There aren’t any well-documented side effects of snail mucin,” says Desai-Solomon, though both dermatologists point out that, as with any ingredient, people can be allergic to it. Avoid allergic reactions by testing a small amount of any new product on the inside of your forearm before slathering it all over your face. And if you're using any type of prescription-strength treatments, Desai-Solomon recommends speaking with your derm before adding any new product into your line-up.

How to Use It

This largely depends on your particular complexion concerns and what you hope to get from the ingredient. According to Desai-Solomon, many people like using snail mucin for moisturizing purposes, in which case she suggests opting for a night cream that contains it. (Bedtime is a prime opportunity for your skin to reap not only the hydration benefits but also the other restorative and regenerative properties of the ingredient as well). Apply it every evening on clean skin, as the final step in your routine, layered over any other treatment products, such as toners or serums.

If you're looking to use snail mucin as a multi-purpose anti-ager, seek it out in a serum, as these will have a higher concentration of the ingredient. Apply it morning and night, right after cleansing, and before any other product.

  • What does snail mucin do for skin?

    Snail mucin is a moisturizer and collagen-stimulator that helps the skin in healing and regeneration.

  • Is snail mucin good for your face?

    Yes, snail mucin is a multifaceted moisturizer with a range of skincare benefits.

  • Does snail mucin clog pores?

    According to Desai-Solomon, snail mucin does not have any documented side effects. As such, snail mucin is not known to clog pores and should not cause breakouts.

Article Sources
Byrdie takes every opportunity to use high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial guidelines to learn more about how we keep our content accurate, reliable and trustworthy.
  1. Fabi SG, Cohen JL, Peterson JD, Kiripolsky MG, Goldman MP. The effects of filtrate of the secretion of the cryptomphalus aspersa on photoaged skinJ Drugs Dermatol. 2013;12(4):453-457.

  2. Narda M, Trullas C, Brown A, Piquero-Casals J, Granger C, Fabbrocini G. Glycolic acid adjusted to pH 4 stimulates collagen production and epidermal renewal without affecting levels of proinflammatory TNF-alpha in human skin explantsJ Cosmet Dermatol. 2021;20(2):513-521. doi:10.1111/jocd.13570

  3. Savić VLj, Nikolić VD, Arsić IA, et al. Comparative study of the biological activity of allantoin and aqueous extract of the comfrey rootPhytother Res. 2015;29(8):1117-1122. doi:10.1002/ptr.5356

  4. Pickart L, Margolina A. Regenerative and protective actions of the GHK-Cu peptide in the light of the new gene dataInt J Mol Sci. 2018;19(7):1987. doi:10.3390/ijms19071987

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