Dermatica retinal serum gently renews skin for a youthful glow. It's formulated with 0.05% retinol, perfect for sensitive skin and first-time retinoid users. This serum works to improve skin texture and tone, diminishing the appearance of fine lines and wrinkles. Dermatica's serum helps to reveal a smoother, more radiant complexion with consistent use. It comes in a 1.0 fl. oz. bottle.