Much research has been done into the effectiveness of Snail Mucin for the skin.

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Utilized for inflammation and anti-ageing, snail mucin has been used in skincare as far back as Ancient Greece. More recently, snail mucin has picked up steam in the U.S., says Dr Corey L. Hartman, MD, board-certified dermatologist and founder of Skin Wellness Dermatology in Birmingham, Alabama. REF: Forbes Health

“Snail mucin is known for its anti-ageing properties due to its collagen and elastin content,” says Dr. Sajic.

A 2020 clinical trial in the Journal of Clinical Aesthetic Dermatology investigated the effects of a skin care regimen containing snail secretion filtrate in women between the ages of 45 and 65 years. At the end of the three-month trial period, researchers found that the women who followed the regimen experienced “significant improvements in skin roughness, firmness and elasticity".

Snail mucin may also be used as a wound-healing agent in skin care. One 2016 in vitro study found that snail mucin had antibacterial effects on bacteria isolated from wounds. The study involved African snails, which secrete a substance called achacin that kills bacteria by generating hydrogen peroxide[2].

The allantoin in snail mucin may prove useful for minor cuts, acne and scarring, according to Dr. Sajic.

The anti-inflammatory properties of snail mucin have also been used to treat burns and radiation dermatitis. The mechanism of action is thought to involve the antioxidant properties of snail mucin and the resulting control of the free radicals that contribute to inflammation and skin injury

Collagen is the most abundant protein in your body. It accounts for about 30% of your body's total protein.
Collagen is the primary building block of your body's skin, muscles, bones, tendons and ligaments, and other connective tissues. REF: Cleveland Clinic

Snail mucin users saw significantly improved fine lines, crow's feet and luminance when compared with people in a group that used a placebo product without snail secretions.
Snail mucins appeared safe for most people. Study participants didn't report any reactions. 06 Oct 2023 REF: Mayo Clinic Press: