Skin Rocks - Retinoid 1Skin Rocks entry level serum is your first port of call if you are just beginning your vitamin A journey and or you are prone to sensitivity. At an active level of 0. 2% hydroxypinacolone retinoate (HPR), fine lines, dark marks and breakouts will appear visibly reduced. Enriched with retinoid boosters such as bakuchiol and soybean extract, as well as moisturising supplementary actives squalane and vitamin E your skin will feel nourished, while it