The antioxidant elements of vitamin C (ascorbic acid) and its part in collagen synthesis make vitamin C a significant molecule for skin health. Dietary and topical ascorbic acid have constructive effects on skin cells, and some studies have proven that vitamin C may help inhibit and take care of ultraviolet (UV)-induced photodamage.
The primary function of the skin is to act as a barrier against toxins from our surroundings, and its versatile formation emulates this. The skin is composed of two layers: the epidermal outer layer is very much cellular and offers the barrier function, and the inner dermal layer guarantees power and elasticity and provides nourishing assistance to the epidermis.
What is Vitamin C?
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Vitamin C is an innate skin element that is established at elevated levels in both the dermis and epidermis. The vitamin C substance of the epidermis is higher than the dermis. In addition, it produces a turn down in vitamin C substance in both the epidermis and dermis. Extreme contact to UV light or pollutants (e.g., cigarette smoke) may furthermore decrease vitamin C content, usually in the epidermis.
Vitamin C and Skin
Vitamin C in the skin is usually brought from the bloodstream. Transport proteins usually for ascorbic acid are discovered on cells in all layers of the skin. Keratinocytes have an elevated capability for vitamin C transport, perhaps to balance for incomplete vascularization of the epidermis. Oral supplementation with vitamin C successfully amplifies vitamin C levels in the skin.
Normal skin has high amounts of vitamin C, which helps significant encourage collagen synthesis and helping with antioxidant protection against UV-induced photodamage. Vitamin C produces a more radiant complexion and evens out skin tone while eliminating the look of fine lines and wrinkles. When supplemented to your daily skin care regime, vitamin C offers many benefits, from evening out your skin tone, protecting skin from the well-known effects of pollution, vitally enhancing hydration, and maintaining your skin so it will look rejuvenated for a longer period of time. Ascorbic acid is highly regarded for its established antioxidant elements that increase firmer-looking skin. This superstar ingredient is supported by analysis for completely evening skin tone.
Vitamin C can be offered to the skin through topical application. The stratum corneum is the ultimate impediment to competent vitamin C absorption from outside sources; elimination of the stratum corneum by laser, chemical, or mechanical treatments improves absorption. Even though comparable studies are still necessary for humans, studies in laboratory animals demonstrate that vitamin C absorption definitely depends on pH. Even though applications of vitamin C up to 30% have been utilized for animal studies, the most absorption was achieved with a 20% vitamin C solution, with higher concentrations showing lower absorption. Topical application of ascorbic acid will traverse the epidermis into the fundamental dermal layers.
Why Vitamin C is Beneficial
Vitamin C restricts the harm stimulated by ultraviolet (UV) light exposure. Vitamin C is not a “sunscreen” since it does not attract light in the UVA or UVB spectrum. Instead, the antioxidant movement of vitamin C shields against UV-induced harm produced by free radicals. Vitamin C transport proteins are amplified in keratinocytes in reaction to UV light, signifying a greater than before requirement for vitamin C uptake for sufficient shielding.
UV light reduces vitamin C substance of skin, a result that is contingent on the strength and period of UV contact. In refined keratinocytes, the accumulation of vitamin C decreases UV-related DNA harm and confines the discharge of pro-inflammatory cytokines. Vitamin C also adapts cell indication in cultured skin cells and as a result, boosts cell existence after UV exposure.
In two rodent studies, the accumulation of ascorbic acid to the diet decreased the volume and quantity of dermal neoplasms and skin tumors encouraged by chronic UV exposure.
Vitamin C supplementation has many beneficial effects in battling photodamage. Specifically, vitamin C has been known to balance collagen thus boosting collagen protein synthesis for reformation of the damaged skin. This happens all at once with a condensation in elastin production; the elastin protein is usually extensive in reaction to photodamage. Vitamin C also boosts the reproduction rate of fibroblasts a capacity that is decreased with age. Overall, vitamin C kindles DNA repair in cultured fibroblasts.