Do blackheads mean that my face is dirty?

Blackheads bear no relationship to your personal hygiene. They result from the oxidation of sebum (the oily material produced by sebaceous glands) and keratinous material (outer skin cells) that fills the dilated pores with exposure to the air. Regular use of a scrub cleanser can help to reduce the size and numbers of blackheads by removing some of the follicular plugs. But more importantly, blackheads are usually an early warning sign of acne. Treatment of acne  at this stage – when the pores … [Read more...]

Evolution of Skin Pigmentation

Publication: Re-appraisal of current theories for the development and loss of epidermal pigmentation in hominins and modern humans. Elias PM, Williams ML. J Hum Evol. 2013 Mar 8. [Epub ahead of print] Synopsis and Significance: In this paper we propose that the evolution of dark skin pigmentation in human ancestors was driven by their need to preserve body water in the hot and dry climate of the equatorial African savannah. This, the most critical function of skin, is provided by the skin’s … [Read more...]

Skin Cancer and Atopic Dermatitis

Publication: Letter to the Editor in response to the commentary, 'Does a History of Eczema Predict a Future Basal Cell Carcinoma?' Elias PM, Williams ML.  J Invest Dermatol. 2013 Jan 22.  [Epub ahead of print] No abstract available.  PMID: 23340733 Synopsis and Significance:  Recently, a large Veterans Administration study showed an unexpected association between basal cell carcinoma, the most common ultraviolet-induced skin cancer, and a prior or current history of atopic dermatitis. In an … [Read more...]

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