It's Skin Power 10 Formula YE Effector is a brightening face serum for mature skin. A pro-age and pro-dermal barrier serum, enriched with Fermented Lactobacilli and Niacinamide, to correct dull, dull skin. Power 10 Formula YE Effector Dulness Corrector promotes skin elasticity and radiance by counteracting transepidermal water loss (TEWL) and promoting the production of ceramides and elastin. Thanks to Adenosine, Hyaluronic Acid, and Squalane, this serum gives skin a brighter, firmer, and more even appearance while supporting a pro-aging action. Squalane, similar to the skin's natural sebum, protects the natural hydrolipid film, contributing to healthier, nourished skin.