Vitamin A & Vitamin C
Vitamin A
Retinoids (a derivative of Vitamin A) are by far the most medically studied ant-aging vitamins. (Vitamin A) Retin-A and Renova are examples of prescription-grade retinoids believed to work on aging skin by increasing collagen production and decreasing collagen breakdown, according to studies. In a study published in the Archives of Dermatology in May, researchers from the University of Michigan found that 0.4% retinol lotion applied three times a week for 24 weeks yielded significant difference in skin wrinkling when compared with a similar lotion without retinol used on a separate group of people in the study. A prescription-strength Retin A product can produce measurable anti-aging results. Products on the market containing retinol include:
Vichy Reti-C Intensive Corrective Care (30 milliliters, $31)
Neutrogena Healthy Skin Anti-Wrinkle Intensives with retinol and antioxidants (Serum, 1 ounce, $16.99; Eye Cream, 0.5 ounce, $16.99)
Clinique Zero Gravity Repairwear Lift with retinol, antioxidants, and peptides (1.7 ounces, $52)
L’Oreal Advanced RevitaLift Double Lifting Gel (1 ounce, $16.99)
RoC Retinol Correxion Deep Wrinkle Serum (1 ounce, $19.99)
Vitamin C
Recent studies have found Vitamin C in the deepest layers of the skin. This has led researchers to explore the effects of vitamin C on skin regeneration from the inside out. As aging continues, the concentration of Vitamin C in the skin seems to wane. Researchers now are faced with the challenge of creating a Vitamin C product using the active form that will last for a long period of time. Most products contain little to no Active Form Vitamin C. Products containing Active form of Vitamin C are:
Active C by La Roche Posay (30 ml, $49.50): This daily moisturizer helps to decrease fine wrinkles and contain: 5% Vitamin C (L-ascorbic acid) and a Thermal spring water
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