Sunscreens: A review

A review of sunscreens and moisturizers compounds drived from cyanobacteria

One of the most important functions of the skin is to protect against various stressors. Environmental stimuli such as UV and environmental pollution increase reactive oxygen species and cause wrinkles and skin aging. Skin aging is associated with decreased collagen production and decreased activity of enzymes involved in collagen structure. Moisturizing chemicals increase the skin's ability to...

A review of sunscreens and their adverse reactions.

Sunscreens are used to protect the skin from harmful effects of ultraviolet (UV) light but they do not completely prevent photocarcinogenesis, photoaging and photoimmunosuppression. They are useful for protection against UVB and short-wave UVA. Complete protection against long-wave UVA has not been achieved. There is no universally accepted method to evaluate UVA protection. Sun protection fact...

Microbial sunscreens

Basking in the sun on an Australian beach, I began to feel a burning sensation from excessive UV irradiation and decided not to wait for the ozone layer to return. As first aid I scraped some algae and cyanobacteria from the blistering rocks and smeared them on my exposed skin. Why? Because these organisms contain sunscreen compounds to protect themselves from harmful doses of UV-B (280–315 nm)...

A review on sunscreens and their efficacy in the prevention of skin cancers and melasma: Part I

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Genomics update Microbial sunscreens