50 citations
,
July 2018 in “Psychoneuroendocrinology” Hair cortisol can indicate long-term stress levels, but hair growth rate differences may affect accuracy.
22 citations
,
May 2019 in “Animals” High hair cortisol levels indicate stress in cows due to poor shelter conditions and health issues.
2 citations
,
December 2025 in “Cosmetics” Proper scalp care can improve hair health and delay ageing signs.
September 2024 in “International Journal of Molecular Sciences” Hydrangea serrata extract may promote hair growth and improve hair health.
Older people tend to have higher biotin levels, which are weakly linked to certain blood components and negatively linked to triglycerides; biotin should be checked in patients with high triglycerides or medication-related skin issues, and only supplemented if deficient. Vitamin D and folate deficiencies are linked to specific skin conditions.
116 citations
,
February 2017 in “Journal of the American Academy of Dermatology” JAK inhibitors help with skin conditions but need more research on dosing and safety.
81 citations
,
June 2012 in “European journal of human genetics” Inherited ichthyoses cause widespread skin scaling and thickening due to gene mutations.
24 citations
,
November 2015 in “Frontiers in Genetics” Nitroxide drugs can safely and effectively treat age-related diseases like macular degeneration and cardiovascular issues.
20 citations
,
July 2017 in “Journal of Investigative Dermatology” IL-1 receptor absence in mice leads to skin cysts and changes in immune response after UVB exposure.
research Acne
2 citations
,
May 2011 in “Harper's Textbook of Pediatric Dermatology” Acne is a common skin condition linked to diet, hormones, and genetics, and early treatment can prevent scarring.