Studio Radiance Face and Body Radiant Sheer Foundation : an ultra-light, waterproof foundation that provides a sheer buildable veil of coverage with a natural, radiant glow. Our iconic foundation promises to reveal - and never conceal - your skin with a sheer, radiant finish for a "my skin but better" effect. This formula provides a sheer buildable veil of coverage with a natural, radiant glow. The result ? It delivers refreshing, instant hydration in an ultra-light, waterproof formula with all-day comfort and wear. Why we love Studio Radiance Face and Body Radiant Sheer Foundation ? - Long-wearing, 8 hours - Provides stay-true colour, 8 hours - Waterproof - Instantly hydrating - Does not cause acne - For all skin types, including sensitive skin - Dermatologist-tested - Ophthalmologist-testedChoosing the right shade of foundation can become a real mission. M · A · C Cosmetics finally delivers the secret. Each shade is identified by a letter and a number.The Number indicates how dark the shade is. The higher the number, the darker the shade. Between 4 and 20, the foundations are designed for fair complexions.Medium skin tones will have numbers between 20 and 40.Finally, darker complexions between 40 and 54.The Letter represents the undertone, ie whether warm or cold tones.If the color of your veins is green, your undertones are warm. If the veins are mostly blue or purplish, you have cold undertones. Finally, if you have both, your undertones are neutral.C = ColdNC = Neutral and ColdN = NeutralNW = Neutral and WarmW = WarmM · A · C Beauty Tips: When in doubt, always go for the lightest shade. This allows you to avoid any risk of demarcation!