Dr. Dennis Gross Vitamin C Lactic 15% Vitamin C Firm & Bright Serum is a potent serum designed to rejuvenate and brighten the skin. Infused with a 15% concentration of vitamin C and lactic acid, this serum works to enhance collagen production, improve skin elasticity, and diminish the appearance of fine lines and wrinkles. The combination of vitamin C and lactic acid gently exfoliates the skin, promoting a smoother, more even complexion while reducing the appearance of dark spots and hyperpigmentation. This serum also contains brightening and hydrating ingredients like glycerin and licorice root extract to leave the skin looking radiant, hydrated, and more youthful. Incorporate this serum into your daily skincare routine to achieve firmer, brighter, and healthier-looking skin. Apply a few drops to clean skin before moisturizing, morning and night, and follow with sunscreen during the day for optimal results.