Retinol can regulate renewing <©the rate of skin cutin l$✔ayer cells. 

It protects the barrier from b "λ✘acteria, promotes co®₽"llagen production and so on.

Glycosphere make retinol stable in for ♠→mulas, and it can also keep retinol far×♥↓ from oxidation and ph∞↕∑™otoreaction.