April 2021 in “Journal of Investigative Dermatology” This study observed that photobiomodulation therapy may contribute to hair growth stability or improvement in individuals with darker skin types, without reported adverse events, though its findings are limited by a small sample size.
13 citations
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December 2001 in “Journal of Investigative Dermatology” This study demonstrated that the tracheal xenotransplant procedure is an effective technique for assessing the invasiveness of epidermal keratinocytes and studying factors affecting hair follicle formation.
June 2020 in “Journal of Investigative Dermatology” This study of photobiomodulation therapy devices for androgenetic alopecia found variable improvements in hair grade across different skin types and devices, suggesting a need for larger, more comprehensive trials.
21 citations
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January 2007 in “Journal of Drugs in Dermatology” This study found that the 3-msec alexandrite laser effectively reduced unwanted, pigmented hair in individuals with skin types IV and V, but was less safe in those with skin type VI.
7 citations
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January 2003 in “Journal of cosmetic and laser therapy” This study concluded that the Spa Touch system effectively retards hair regrowth, functioning like a "light razor" for quick and cost-effective epilation.
