Wellness Skincare Everything You Need to Know About Snail Mucin By Laura Dorwart Laura Dorwart Laura Dorwart is a health journalist with a focus on mental health, pregnancy-related conditions, and disability rights. Her writing has been published in VICE, SELF, The New York Times, The Guardian, and many more. health's editorial guidelines Published on August 20, 2023 Medically reviewed by Susan Bard, MD Medically reviewed by Susan Bard, MD Susan Bard, MD, is a board-certified general and procedural dermatologist with the American Board of Dermatology and a Fellow of the American College of Mohs Surgery. learn more In This Article View All In This Article What It Is Benefits How To Add It to Your Skincare Routine Types of Products Risks and Side Effects Who Should Avoid I? Trending Videos Close this video player drasa / Getty Images Also called snail slime, snail mucin refers to the trail of mucus left behind when snails move across the ground. It contains a complex mix of proteins and organic chemicals that may have anti-aging, hydrating, and anti-inflammatory benefits when applied to your skin. Snail mucin was first used in ancient Greece and widely popularized more recently in the South Korean beauty industry. Here's everything you need to know about snail mucin, including its potential benefits, side effects, risks, and more. What Is Snail Mucin? Snail mucin is the mucus secreted by a snail or slug when it crawls. The lubricating substance allows snails to stick to the ground more easily and travel more smoothly. Along the way, it also protects their sensitive skin from damage, provides hydration, and prevents inflammation and infection. As it turns out, snail mucin may have some of the same benefits for humans. In fact, ancient Greeks used it to treat dry skin, fight inflammation, and prevent the signs of premature skin aging. Over the years, it’s also been used in alternative medicine and products like surgical glue. Now, it’s a common ingredient in skincare products like creams, serums, and masks. Potential Benefits of Snail Mucin Research about the potential benefits of snail mucin is limited and ongoing. However, early studies suggest that snail mucin may help with skin hydration, wound repair, cell turnover, and the prevention of infections and skin cancer. Hydration Snail mucin contains hyaluronic acid, which has potent hydrating effects. Hyaluronic acid hydrates your skin from the inside out by encouraging water retention and preventing transepidermal water loss. This can help your skin appear plumper, firmer, and younger, especially if you tend to have dry skin. When used in skincare products, snail mucin may also help to protect the skin barrier, which shields your skin from the drying and damaging effects of external toxins. Anti-Aging Effects Possibly because it contains glycolic acid–a naturally occurring alpha hydroxy acid (AHA) that is frequently used in skincare products–and copper peptides, snail mucin may have anti-aging effects. This could be because glycolic acid stimulates collagen production and cell turnover and proliferation (the production of new skin cells). Snail mucin is also known to have antioxidant effects, which can prevent cell damage from oxidative stress and free radicals. A 2020 study found that the daily application of products containing snail mucin was effective in treating the visible signs of skin aging in a group of women ages 45 to 65. Snail mucin was found to significantly reduce the appearance of fine lines and wrinkles, in addition to improving skin elasticity, brightness, texture, hydration, barrier function, and firmness. Antimicrobial Activity Because snail mucin protects snails from contracting infections as they slither across the ground, it may also have antibacterial and antifungal properties when used by humans. A number of studies have found that snail mucus secretions can kill bacteria and prevent skin infections from worsening, especially when applied to wounds. In some cases, snail mucin was even more effective than common antibiotics. Wound Healing Snail mucin has anti-inflammatory properties, likely in part because it contains allantoin–a soothing natural chemical compound. Its ability to fight inflammation, prevent infection, and increase cell turnover allows it to speed up wound healing and support the skin’s natural process of recovery after trauma. Studies indicate that snail mucin may be helpful in regulating the wound repair process in both humans and animals. In fact, snail mucin is sometimes used as a natural adhesive to protect and “seal” the skin for people with chronic wounds. Prevention and Treatment of Skin Cancer Early research suggests that snail mucin may even be used to curb melanoma, the most fatal type of skin cancer. Studies indicate that snail mucin may kill off skin cancer cells and prevent them from metastasizing (spreading). There’s some evidence that it could also prevent certain malignant tumors from growing, possibly due to its antioxidant properties. How to Add Snail Mucin to Your Skincare Routine Snail mucin often makes an appearance in multi-step K-beauty skincare routines, but you don’t have to be a skincare expert to make it work for you. You can easily incorporate snail mucin into your daily skincare regimen if you’d like to reap its purported benefits. A typical anti-aging skincare routine involves the following products: Daily sunscreen of SPF 30 or higher Daily moisturizer Daily gentle cleansing At least one anti-aging skin product, such as a serum, per day Many people incorporate snail mucin into their moisturizing step, as it’s safe to use on a daily basis. Others may use a brightening serum or mask with snail mucin a few times a week. Types of Snail Mucin Products Also called snail slime or snail extract, snail mucin may be as “snail secretion filtrate” (SSF) on a skincare product label. To get the most possible benefits out of your use, look for labels that include snail mucin early in the list of ingredients. This means that there’s a higher concentration of snail mucin in the product. For best results, you should also look for products that contain snail mucin alongside other anti-aging and antioxidant ingredients, such as retinoids and vitamin C. Some of the skincare products that most often contain snail mucin include: Night creams Repair creams Face masks (both leave-on and wash-off) Gentle facial cleansers Undereye patches Serums Moisturizers Potential Risks and Side Effects One of the reasons that snail mucin is so popular is that it doesn’t have many clinically documented side effects or risks. Most people who use snail mucin appear to tolerate it well. Still, research into skincare products that contain snail mucin is still limited, so it’s possible that some people could experience side effects. However, you should avoid snail mucin if you are allergic to snails, shellfish, and/or mollusks. Snail and shellfish allergies are relatively common and can be dangerous. It’s important to keep this in mind before using snail mucin. Use only a small amount at first to test your reaction. Signs of an allergic reaction could include: Itching Skin rash Redness and irritation Watery or irritated eyes Stuffy nose Hives If you experience any of the following signs of anaphylaxis (a severe allergic reaction) after using snail mucin, call 9-1-1 or go to a hospital for emergency medical care immediately: Difficulty breathing Wheezing Swelling of the face, eyes, lips, tongue, or throat Heart palpitations Chest pain Lightheadedness Confusion Facial flushing Cough Stomach pain Nausea Difficulty speaking or swallowing Sense of impending doom Who Should Avoid Snail Mucin? Snail mucin has no medically documented side effects to date. However, you should not use snail mucin if you are allergic to snails or mollusks. People with very sensitive skin may want to try only a small amount of any skincare product–including those that contain snail mucin–at first to make sure they don’t have an adverse reaction. A Quick Review Snail mucin may seem like an unconventional skincare ingredient, but many people swear by its anti-aging, anti-inflammatory, antibacterial, hydrating, and wound healing properties. There’s even some early evidence to suggest that it could fight certain types of skin cancer. If you’d like to give snail mucin a try, consider doing a “patch test” of your chosen skincare product on a small area of your skin first. As always, reach out to a dermatologist if you’d like help in building a skincare routine that fits your particular needs and concerns. Was this page helpful? Thanks for your feedback! Tell us why! Other Submit 12 Sources Health.com uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. McDermott M, Cerullo AR, Parziale J, et al. Advancing discovery of snail mucins function and application. Front Bioeng Biotechnol. 2021;9:734023. doi:10.3389/fbioe.2021.734023 Gugliandolo E, Macrì F, Fusco R, et al. The protective effect of snail secretion filtrate in an experimental model of excisional wounds in mice. Vet Sci. 2021;8(8):167. doi:10.3390/vetsci8080167 Draelos ZD, Diaz I, Namkoong J, Wu J, Boyd T. Efficacy evaluation of a topical hyaluronic acid serum in facial photoaging. Dermatol Ther (Heidelb). 2021;11(4):1385-1394. doi:10.1007/s13555-021-00566-0 Trapella C, Rizzo R, Gallo S, et al. HelixComplex snail mucus exhibits pro-survival, proliferative and pro-migration effects on mammalian fibroblasts. Sci Rep. 2018;8(1):17665. doi:10.1038/s41598-018-35816-3 Lim VZ, Yong AA, Tan WPM, et al. Efficacy and safety of a new cosmeceutical regimen based on the combination of snail secretion filtrate and snail egg extract to improve signs of skin aging. J Clin Aesthet Dermatol. 2020;13(3):31-36. PMID: 32308795; PMCID: PMC7159309. Ricci A, Gallorini M, Feghali N, et al. Snail slime extracted by a cruelty free method preserves viability and controls inflammation occurrence: A focus on fibroblasts. Molecules. 2023;28(3):1222. doi:10.3390/molecules28031222 Deng T, Gao D, Song X, et al. A natural biological adhesive from snail mucus for wound repair. Nat Commun. 2023;14(1):396. doi:10.1038/s41467-023-35907-4 Atta SA, Ibrahim AM, Megahed FAK. In-vitro anticancer and antioxidant activities of Eremina desertorum (Forsskal, 1775) snail mucin. Asian Pac J Cancer Prev. 2021;22(11):3467-3474. doi:10.31557/APJCP.2021.22.11.3467 American Academy of Dermatology Association. How to select anti-aging skin care products. Bjørklund G, Shanaida M, Lysiuk R, et al. Natural compounds and products from an anti-aging perspective. Molecules. 2022;27(20):7084. doi:10.3390/molecules27207084 Misnan R, Salahudin Abd Aziz N, Mohamad Yadzir ZH, et al. Impacts of thermal treatments on major and minor allergens of sea snail, Cerithidea obtusa (Obtuse horn shell). Iran J Allergy Asthma Immunol. 2016;15(4):309-316. PMID: 27921412. MedlinePlus. Allergic reactions.