48 citations
,
May 2015 in “NPJ microgravity” A 3-month stay in space causes skin thinning, disrupts hair growth, and changes muscle-related genes in mice.
25 citations
,
March 2017 in “Archives of Dermatological Research” Sinapic acid may help hair growth by activating a specific cell pathway.
17 citations
,
May 2015 in “Nanomedicine: Nanotechnology, Biology and Medicine” Scientists created tiny particles loaded with a hair growth drug, minoxidil, that specifically target hair follicles and skin cells to potentially improve hair growth.
11 citations
,
January 2018 in “RSC Advances” Cedrol cream is more effective and safe for promoting hair growth than traditional treatments.
8 citations
,
November 2022 in “International Journal of Cosmetic Science” Human hair varies widely and should be classified by curl type rather than race.
7 citations
,
February 2021 in “Legal Medicine” Hair analysis showed very high metformin levels in two fatal overdose cases, suggesting it's useful in forensics but sweat may affect results.
1 citations
,
July 2016 in “Cosmetics” Black henna tattoos can cause severe allergies to hair and textile dyes, and there's a need for greater public awareness and regulation.
September 2023 in “Scientific reports” Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.
January 2019 in “Durham e-Theses (Durham University)” Advanced microscopy shows hair damage and keratin proteins' roles, aiding future cosmetic treatments.
8 citations
,
September 1995 in “Acta Dermato Venereologica” Calcipotriol treatment for scalp psoriasis does not cause hair loss.
6 citations
,
April 2020 in “Applied sciences” Hair growth medium helps heal wounds and regrow hair in mice.
4 citations
,
January 2016 in “Journal of analytical & bioanalytical techniques” The herbal hair gel could be a safe hair growth treatment with minimal side effects.
October 1987 in “Clinics in Dermatology” Hair transplantation is beneficial if the right patients are chosen and the procedure is done carefully.
61 citations
,
April 2012 in “British Journal of Dermatology” Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.
41 citations
,
July 2015 in “Current Drug Discovery Technologies” Some plants may help with hair growth and have fewer side effects than synthetic drugs, but more research is needed to confirm their effectiveness.
21 citations
,
July 2014 in “British Journal of Dermatology” Hair thickness matters more than density for baldness in Japanese men over 25.
12 citations
,
October 2020 in “Scientific Reports” Necrostatin-1s can promote hair growth and may help treat hair loss.
4 citations
,
January 2021 in “Skin appendage disorders” Washing hair daily is better and preferred, with no negative effects.
4 citations
,
November 2011 in “Archives of Dermatology” The photographic method for measuring facial hair density is reliable and valid but needs further testing on different hair densities and skin colors.
3 citations
,
August 2020 in “International Journal of Molecular Sciences” Blocking Rab27a slows hair growth, while blocking Rab27b encourages it.
1 citations
,
December 2016 in “Trichology and cosmetology:” Panax ginseng might help with hair growth and has fewer side effects than synthetic treatments.
November 2025 in “Biological Trace Element Research” Hair mineral analysis doesn't reliably show blood mineral levels but may help track long-term mineral trends.
31 citations
,
April 2016 in “Nature communications” Certain signals are important for reducing specific chemical markers on hair follicle stem cells during rest periods, which is necessary for healthy hair growth.
6 citations
,
May 2011 in “Pharmacognosy Journal” Many products for hair re-growth exist, but a perfect treatment without side effects has not yet been found.
4 citations
,
March 2015 in “Skin Research and Technology” Trichotillometry is a reliable method to measure hair strength and assess hair loss treatments.
3 citations
,
September 2020 in “Journal of cosmetic dermatology” Coconut oil makes hair stronger and more flexible than mineral oil.
November 2025 in “Discover Food” Catechins-rich tea extract may help reduce hair loss and promote hair growth.
May 2023 in “Animal Reproduction Update” High levels of cortisol in hair show long-term stress which can lower fertility in animals.
354 citations
,
February 2011 in “Genes & Development” EZH1 and EZH2 are crucial for healthy hair growth and skin repair.
184 citations
,
November 2014 in “Developmental Cell” Hair follicle dermal stem cells are key for regenerating parts of the hair follicle and determining hair type.