In addition to providing a physical barrier to the outside world, the skin plays important roles in immune function, hydration maintenance and body temperature regulation. The upper layer of skin, called the epidermis, bears the brunt of abrasions, sun damage, chemical exposure and pathogens. The lower level, called the dermis, provides mechanical support and contains collagen and elastin that give skin its elasticity. Due to all of these functions, the skin has many nutritional requirements. Vitamin C is one nutrient that provides numerous benefits to the skin.
Structural Support
Vitamin C is an essential component of collagen. Therefore, the collagen-rich dermal tissue is dependent on an adequate supply of vitamin C to maintain its elasticity and flexibility. Collagen naturally decreases with aging, leading to loose, weak and dry skin. Proper nutrition that provides an adequate amount of vitamin C helps maintain and preserve collagen and supports the structure of the skin.
Skin Repair
Skin damage and aging result from factors such as free radical damage, exposure to ultraviolet light, genetic influences and dehydration. Vitamin C and other antioxidant intake can fight free radicals that damage the skin. Topical application is another way to reap the benefits of vitamin C. The Journal of Cosmetic Dermatology states that topical applications that are nonesterified and acidic and have a 20 percent concentration of Vitamin C can prevent damage from the sun, skin cancer, and reverse effects of photoaging.
Wound Healing
Vitamin C has many functions in the healing process for abrasions and other wounds. Its role in collagen formation provides new tissue to the damaged site. It provides flexibility to newly formed collagen that would otherwise tear under tension. Last, vitamin C plays an important role in enhancing the immune system to heal wounds and abrasions.
References
- "Today's Dietitian"; Beauty from Within: Natural Approaches to Nourishing Skin; Sharon Palmer, RD; March 2008
- "Journal of Cosmetic Dermatology"; Photodamage of the Skin: Protection and Reversal with Topical Antioxidants; KE Burke; 2004
- "Ostomy Wound Damage"; The Facts About Vitamin C and Wound Healing; Nancy Collins, PhD, RD, LD/N, FAPWCA; 2009
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