Ultraviolet radiation, both UVA and UVB, influences the composition of the skin microbiome.

Background: Studies have begun to investigate the complex relationship between host and microorganisms in non-infectious pathologies such as acne, atopic dermatitis and psoriasis. Though the skin is exposed to environmental stressors such as ultraviolet radiation (UVR), no studies exist examining the effects of both UVA and UVB on the skin microbiome.

Objective: To test the effect of UVA and UVB on human skin microbiome.