C-ESTA Serum, containing DMAE, dramatically rejuvenates the skin. The skin s texture will quickly begin to appear more smooth and supple. With continued use it will become measurably firmer and more resilient and facial contours will appear tighter and more defined. Deeper lines will appear far less pronounced, skin tones will even out and the skin will appear noticeably younger and healthier. Key Technologies. Ascorbyl Palmitate. DMAE. Hyaluronic Acid. Other Vitamins Features & Benefits. Lipi.