"Unlock the secrets of skincare and understand the science behind your favorite beauty buys. Cosmetic science expert Dr. Michelle Wong (a.k.a. Lab Muffin Beauty Science) answers over 100 beauty and skincare questions, revealing the truth behind the bold marketing claims and the latest trends. Decipher the ingredients that make your favorite shampoo and lipstick; find out the truth behind so-called 'sustainable' beauty products and how much sunscreen you really should be wearing; and discover the best skincare routine to follow, whatever your skin type." -- back cover.