Polyglutamic Acid Dewy Sunscreen SPF 30

A small humectant that attracts and holds water in the stratum corneum, delivered into the epidermis partly via aquaporin-3. It raises hydration, improves plasticity and desquamation, and supports barrier recovery — one of the best-evidenced moisturizing agents.

A microbial peptide biopolymer with abundant carboxyl groups that binds and holds large amounts of water, forming a smooth self-moisturizing film that lowers water loss. It can also upregulate hyaluronic-acid synthase and aquaporin-3, and reportedly holds more water than hyaluronic acid.

A fully saturated emollient made by hydrogenating squalene (a natural sebum lipid), which makes it highly stable and non-comedogenic. It softens skin, reduces water loss, and penetrates efficiently without an oily feel.