The Ordinary Retinol 0.5% in Squalane is a water-free solution that contains 0.5% pure Retinol, an ingredient that can reduce the appearances of fine lines, of photo damage and of general skin ageing. 

Caution: Retinol can cause significant irritation, redness and peeling, especially around the eyes and mouth, in the early stages of treatment while skin builds tolerance. If you have not used high-strength retinol formulas in the past, we strongly recommend that you start your retinol regimen with an application every other evening and adjust to a daily routine slowly as your skin builds tolerance. 

Retinoids can make the skin more sensitive to UV radiation. Sun protection is particularly important when using retinoids