- Lift, firm and tighten the appearance of facial contours with this exceptional antioxidant cocktail featuring Vitamin C & DMAE for powerful free-radical protection. Great for all skin types, C-ESTA Serum is a powerful antioxidant cocktail, featuring Vitamin C and DMAE, shown to reduce the appearance of fine lines and wrinkles and uneven skin texture. Preferred by subjects in a blinded split-face study vs. a leading Vitamin C solution, C-ESTA Serum is the preferred Vitamin C and antioxidant solution for younger, healthier looking skin. Key Ingredients: Ascorbyl Palmitate (Vitamin C), DMAE, Hyaluronic Acid, and Vitamins (B5 & E). Shake bottle well. Apply sparingly morning and evening to clean skin. Apply over entire face, neck and behind ears.