The Chemistry Brand knows that it isn't just the skin on your face that needs to be looked after! The hands can be a real tell-tale sign when it comes to aging, which is why The Chemistry Brand's Hand Chemistry was developed. So much more than just a hand cream, Hand Chemistry is a true must-have which fights 8 signs of aging so your hands look as young and smooth as possible. The Chemistry Brand Best Selling Retin-Oil uses the Retinoid power of Vitamin A and to tackle scars, stretch marks and cellulite and more.