Jan Marini C-ESTA Face Serum New in box Retails for $125 Expires 06/2024 A powerful antioxidant cocktail, featuring a lipid soluble Vitamin C and DMAE and HA, shown to reduce the appearance of fine lines and wrinkles and uneven skin texture. Jan Marini C-ESTA Serum is great for all skin types. How to use: Shake bottle well. Apply antioxidant facial serum sparingly morning and evening to clean skin. Apply over entire face, neck, and behind ears.