Until recently, skin protection was mainly focused on the effects of UV radiation on skin. However, we nowadays need to take into account the damaging effects of other wavelengths, in particular blue light. Indeed, blue light penetrates deeper into the skin than UV rays. It represents 50% of the energy emitted by the sun and almost 100% of the energy emitted by artificial sources.
It appears that regular sunscreens may not be sufficient to bring a global protection. Sun’Alg®, developed and sold by Gelyma, provides an efficient and overall skin protection against the harmful damage caused by the exposure to UV radiation as well as to blue light. It therefore helps to minimise signs of premature photoageing.
UV and blue light exposure induces specific as well as overlapping and synergistic effects on the skin, consequently inducing important damages.
UVA radiation (320 - 400 nm) penetrates deeply in the dermal layers, generating reactive oxygen and nitrogen species (ROS and RNS respectively) that alter proteins, lipids and DNA. It therefore contributes to premature skin ageing, wrinkle formation with a risk of cancer through the formation of oxidised DNA bases.
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