Image 1 of 1 C-Esta Face Serum $129.00 C-Esta serum is a powerful antioxidant cocktail that lifts, firms, and tightens the skin. C-Esta smells like fruity heaven. Quantity: Add To Cart Added! C-Esta serum is a powerful antioxidant cocktail that lifts, firms, and tightens the skin. C-Esta smells like fruity heaven.