What layer of skin is vitamin D produced?

The epidermis is the major source of vitamin D for the body. Under the influence of sunlight (ultraviolet radiation, action spectrum 280–320nM or UVB) 7-dehydrocholesterol in the epidermis is converted to vitamin D.

How is vitamin D Synthesised in the skin?

Vitamin D is a hormone, not a vitamin. The skin is responsible for producing vitamin D. During exposure to sunlight, ultraviolet radiation penetrates into the epidermis and photolyzes provitamin D3 to previtamin D3. Previtamin D3 can either isomerize to vitamin D3 or be photolyzed to lymisterol and tachysterol.

Where in the epidermis is vitamin D produced?

Production in Skin Upon exposure to UVB radiation, previtamin D3 is synthesized from 7-DHC in the skin, primarily in keratinocytes of the stratum basale and stratum spinosum layers of the epidermis.

Does vitamin D help heal skin?

Vitamin D is needed to regulate cells in various tissues, including epidermal keratinocytes. This is done by modifying growth factors and cytokines. Vitamin D can affect wound healing by increasing the production of epidermal and platelet growth factors.

Does vitamin D heal skin?

When the skin is injured, a higher amount of vitamin D intake will enhance healing and better outcomes. Additionally, vitamin D promotes the creation of cathelicidin, an antimicrobial peptide the immune system uses to fight off wound infections.

Can you apply vitamin D topically?

At times when sun exposure is limited, such as in winter months, it’s important to top up levels of vitamin D through your diet and supplements to still gain its health benefits. But applying vitamin D topically to the skin is also effective in maintaining good skin health and improving some skin conditions.

Does vitamin D help heal scar tissue?

Introduction: Recent research on vitamin D has shown that the fat-soluble micronutrient has anti-microbial, anti-inflammatory, and anti-proliferative effects in cells and tissues. During wound healing, abnormal scarring may occur and lead to reduced mobility, disfigurement, and psychosocial concerns.

Does vitamin D supplements darken your skin?

What does seem to be the general consensus though, is that whilst it’s probably unlikely that vitamin D supplements darken the skin, being exposed to sunlight helps us to manufacture vitamin D, and in this process, we may also get a tan.