Dr H Anti-Ageing Retinol Facial Serum is a powerful formulation designed to combat visible signs of ageing for a smoother, more youthful complexion. serum, which contains Retinol, is intended for evening use on clean, dry facial skin, initially 2-3 times per week, gradually increasing frequency as your skin allows, while avoiding the eye area. Manufactured by Dr H, an anti-ageing skincare company based in London, this product helps reduce the appearance of fine lines and wrinkles, improves skin texture by promoting cell turnover, and supports skin firmness and elasticity.