17 citations
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February 2011 in “International Journal of Cosmetic Science” This study found that individual differences between pigmented and unpigmented hair fibers in Old Order Mennonites suggest grey hair may be perceived as drier and less manageable due to small mechanical and moisture changes.
49 citations
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June 2009 in “Seminars in Cutaneous Medicine and Surgery” This article examines differences in aging among ethnic populations and highlights cosmetic procedures specific to skin of color, but reports no new research findings.
This study found that a combination of photoprotector and nighttime formulations with essential oils improved skin barrier function and structural characteristics in young men's oily, acne-prone, and photoaged skin.
February 2023 in “Cosmoderma” This study found that combining red light therapy with oral beta-carotene significantly improved photoaging treatment outcomes compared to red light therapy alone, with Group A showing a 56.12% reduction in photoaging scores over 12 weeks versus 44.78% in Group B.
119 citations
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August 2010 in “Journal of Investigative Dermatology” This study reports that 11β-HSD1 activity in human skin increases with age and photoexposure, potentially contributing to skin aging and the effects of glucocorticoids.