Retinol is known to be a molecule which improves the skin texture, dyspigmentation, dryness, and fine lines. The optimal concentration to balance the skin irritation against effectiveness has not been determined. Retinol concentration in the cosmetic product is between 0.0015% et 0.3%.
Nom des produits :Tretinoin or Vitamin A Acid
INCI name: RETINOIC ACID
N ° CAS.: 302-79-4
Qualité standard: USP40
Recommended amount: 0.0015% et 0.3%
ANALYSE DE BASE | |
Une analyse | La description |
Apparence | Yellow to light yellow crystalline powder |
Identification | Positif |
Perte au séchage | Pas plus que 0.5% |
Résidu à l'allumage | Pas plus que 0.1% |
Métaux lourds | Pas plus que 0.002% |
Isotretinoin | Pas plus que 5% |
Essai (C20H28O2) | 97.0-103.0% |