How Quickly can the Sun Effect the Skin?
Dermato-Endocrinology studies suggest that as little as 5 min of UV exposure in nude mice caused enhanced deposition of Hyaluronic Acid, indicating that UV radiation induced skin damage is an extremely rapid event.
When skin is exposed to excessive UVB rays, it becomes inflamed (sunburn) and the cells in the dermis stop producing as much Hyaluronic acid. As a result, will increase the rate of its degradation. Repeated and extensive exposures to UV ultimately simulate a typical wound healing response with deposition of scarlike type I collagen, rather than the usual types I and III collagen mixture that gives skin resilience and pliability.
Always apply a broad-spectrum sunscreen rated SPF 30 or greater. If you aren’t diligent about sun protection, even the most effective anti-aging ingredients won’t be able to deliver the results you want. Unprotected sun exposure is simply bad for skin. Daily use of sunscreen as directed, along with other sun protection measures, decreases the risk of skin cancer and early skin aging.
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