10 citations
,
October 2018 in “Dermatologic Therapy” In this study, researchers tested lotions containing DGLA, S-equol, and propionyl-l-carnitine on individuals with androgenic alopecia, noting a significant increase in hair count for women and a marginal increase for men after 6 months, along with improved hair cycle dynamics.
30 citations
,
September 2018 in “International Journal of Cosmetic Science” In this study, researchers observed that cosmetic peroxide bleaching causes oxidative damage and protein loss in human hair, not only affecting the cuticle but also deeper cortical structures, correlating with bleaching severity.
54 citations
,
January 2018 in “Scientific reports” This study used proteomics to identify various proteins in human hair, which may help develop novel biomarkers for hair health, disease, and aging.
24 citations
,
April 2016 in “Experimental Dermatology” This study found that chemical treatments like perming, dyeing, and bleaching significantly alter amino acids and lipids in human hair, which may impact hair strength and quality.
10 citations
,
October 2015 in “Journal of Dermatology” This study found that adenosine significantly increased the proportion of thick hair in Caucasian men with androgenetic alopecia, with no reported adverse effects.
11 citations
,
April 2015 in “International Journal of Cosmetic Science” This study found that topical adenosine significantly increased the ratio of thick hairs and contributed to global improvement in Japanese men with androgenetic alopecia compared to niacinamide, with no observed adverse events.
72 citations
,
December 2011
26 citations
,
October 2007 in “Experimental Dermatology” This study found that l-carnitine stimulated hair growth in vitro by promoting proliferation and reducing apoptosis in human scalp hair follicles, suggesting potential as a treatment for hair loss.
72 citations
,
July 2003 in “Journal of cosmetic dermatology” This review discusses the psychological importance of hair and explores how various hair cosmetics can affect hair health, emphasizing that certain products can lead to acute hair problems when repeatedly altering the natural style.
157 citations
,
April 1997 in “International journal of legal medicine” This study found that cosmetic hair treatments like bleaching and dyeing significantly reduced drug concentrations in hair samples, with decreases ranging from 30% to over 60% depending on the treatment and hair damage level.
86 citations
,
January 1996 in “Clinics in dermatology” This review discusses the effects of protein-based cosmetics on hair properties and reports no new research findings, suggesting potential benefits for developing advanced, sustainable hair products.