The Calm Gentle Retinal Serum from Osmosis Skincare is a restorative serum designed for moderately sensitive skin types.As part of the Osmosis Skincare classification of their Vitamin A serums, this one is a Level 2 formula and combines a specialist and tolerable Vitamin A derivative with rejuvenating Peptides and Lactic Acid to tackle everything from fine lines to weak barrier function. It also contains ingredients to calm, repair, strengthen and balance the skin, resulting in a complexion that feels firmer and looks clearer.Suitable for most skin types, including sensitive and prematurely ageing skin, apply one or two pumps to cleansed skin every morning and evening.