How to choose your Teint Idole Ultra Wear Care & Glow? 1. determine your shade number according to your skin tone: The number corresponds to the intensity of your skin tone. - 100S: if you have very fair skin - 200S: if you have fair skin - 300S: if you have medium skin - 400S: if you have medium-dark skin - 500S: if you have dark skin 2. Choose the letter according to your skin undertone: The letter corresponds to the undertone of your skin tone. - C (Cool): your skin has a cool, pinkish/blue undertone. You rarely tan and tend to blush in the sun - N (Neutral): your skin has a neutral, beige undertone. You tan fairly easily - W (Warm): your skin has a warm, coppery/golden/olive undertone. You tan very easily with a golden tan Step 1: Prepare your skin On cleansed skin, apply a dose of Priming Serum Smoothing and Moisturizing Foundation to prolong the hold of your foundation. Pat the texture into the skin with your fingertips. Step 2: Even out your complexion Apply a small amount of Teint Idole Ultra Wear Care & Glow foundation on the T-zone, forehead, sides of the nose, cheeks and chin. Stretch outwards. For a natural glow, apply foundation with fingertips. For a flawless, radiant finish, use a brush. Step 3: Correct your complexion Conceal dark circles and correct redness with the 2-in-1 Teint Idole Ultra Wear All Over Concealer and foundation.