The INKEY List 15% Vitamin C + EGF Serum. A delicate-yet-powerful, lightweight serum that delivers a powerful dose of actives to help support natural skin elasticity and visibly brighten dull skin. Instant Glow & Radiant Complexion. Vitamin C works hard to noticeably target hyperpigmentation, scarring and uneven skin tone. Powerful Ingredients, Real Results. Vitamin C helps protect skin from damage. Naturally derived Epidermal Growth Factor helps to stimulate skin cells to tighten the look of skin. How To Use. After cleansing, apply a pea-size amount of this serum to face and neck. Use AM with an SPF, & PM. Following with your preferred moisturizer. Your Needs, Our Knowledge. The INKEY List 15% Vitamin C + EGF Serum. A delicate-yet-powerful, lightweight serum that delivers a powerful dose of actives to help support natural skin elasticity and visibly brighten dull skin.