Sunscreen

Ultraviolet (UV) radiation is a carcinogen that also compromises skin appearance and function. Since the UV action spectra for DNA damage, skin cancer, and vitamin D photosynthesis are identical, and vitamin D is readily available from oral supplements, why has sun protection become controversial?

Sunscreens have been in use for nearly 70 years. Originally designed to protect against sunburn, enable longer sun exposure and promote tanning, sunscreens are now often promoted as a method for preventing skin cancer and skin aging.

Key to the management of photodermatoses is photoprotection, which includes seeking shade; wearing wide brimmed hats, and sunglasses; and applying sunscreens. This article discusses sunscreens, sun protection, UVA, UVB, and its role in managing various skin conditions.

There are benefits and risks to sunlight exposure of the skin. This article covers a variety of topics, including the effects of UVA and UVB, vitamin D, skin tone, skin cancer risk, and SPF.

The skin has evolved to protect us from the harmful effects of ultraviolet light. Sunscreens were first developed to prevent sunburns by blocking UVB; they allowed us to prolong our time in the sun, but that resulted in increased exposure to UVA.

We review the various controversies surrounding sunscreen use.

The new generation of sunscreens serve an important role in overall skin protection from the sun. However, they should be used in conjunction with other sun protection measures such as sun protective clothing, hats, and sunglasses.

Cosmetic products containing ultraviolet light filtering agents are rapidly being developed and entering the marketplace. This article reviews formulary attributes, effective photoprotection, adherence, and behavior modification.

ROSASOL Cream is a novel topical formulation of 1% metronidazole in a vehicle containing sunscreens (SPF 15). This product has demonstrated efficacy in the treatment of inflammatory lesions, erythema, and telangiectasiae associated with rosacea.