Low-irritating Retinol serum to target fine lines & wrinkle supporting skin's natural firmness for a bouncier more resilient look 99.8% purity patented retinol-some 1.9% + 99% purity NMN – Powered by a 5-Synergy Complex for multi-dimensional & lont-lasting skin firming. Designed with low-irritation technology this intensive retinol serum delivers high efficacy while maintaining skin comfort. Gentle enough for sensitive & acne-prone skin