Concentrated doses of vitamin A are balanced with deeply penetrating, low-molecular-weight hyaluronic acid to firm and plump the skin while supporting essential hydration levels for a radiant glow. Days 1, 4, 5, 7, 8 and 9 – Ret A Renewal This powerful dose of essential vitamin A delivers a brighter-looking complexion whilst smoothing the skin and improving the appearance of dark spots, scarring, fine lines and wrinkles. Days 2, 3, 6 and 10 HA Hydrate NMF This deeply hydrating, low-molecular-weight hyaluronic acid offers visible skin plumping whilst restoring a radiant glow. The extremely small molecular size means it is able to penetrate to the deepest layers of the skin providing a long-lasting moisturising effect, thanks to its powerful hygroscopic (water-attracting) properties.