Ksecret Seoul 1988 Cream : Retinal Liposome 1% + Fermented Rice, 50ml/1.69fl.oz

K-Secret 1% Retinal is a powerful yet relatively gentle alternative to prescription-strength retinoids. Since retinal (also known as retinaldehyde) works faster than retinol but is less irritating than tretinoin, it’s a great choice for those looking to improve fine lines, wrinkles, and skin texture without excessive dryness or peeling.

The serum itself has a lightweight texture and absorbs well into the skin without leaving a greasy feeling. I noticed an improvement in skin smoothness and brightness within a few weeks. However, since it’s a high-strength product, beginners should start slowly (2-3 times a week) and always use sunscreen during the day.