Like a multivitamin for skin, COSRX Advanced Snail 96 Mucin Power Essence contains 96% snail mucin to nourish, repair, and plump with moisture. This light-weight formula absorbs into the skin quickly to give skin a natural glow from the inside. All COSRX products are dermatologist-tested, hypoallergenic, paraben-free, sulfate-free, phthalate-free, and alcohol-free.