Brighten and rejuvenate your skin with Jan Marini's C-ESTA Face Serum. Containing DAE Complex and vitamin C, the serum is a readily absorbed liquid anti-aging treatment that enables dramatic revitalization for a smoother and more youthful-looking complexion. With continued use, skin becomes brighter, firmer and more resilient. Deeper lines appear far less pronounced, skin tones will even and the skin will appear noticeably younger and healthier.Tip: C-ESTA Serum is compatible with glycolic acid products, tretinoin other topical medications, moisturizers and makeup.