Eating flaxseed made rabbit hair longer and thicker and improved their weight and blood sugar and cholesterol levels.
72 citations
,
February 2011 in “American Journal of Biological Anthropology” The conclusion is that recognizing hair growth cycles can improve the precision of dietary and health assessments from hair analysis.
68 citations
,
March 1965 in “The BMJ” Hormones and genetics affect hair growth and patterns, with some changes reversible and others not.
62 citations
,
July 1993 in “Journal of Investigative Dermatology” Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.
20 citations
,
June 2014 in “BMC genomics” Poplar seed hairs grow from the placenta at the ovary base, with endoreduplication playing a key role in their development, and share similar cellulose synthesis processes with cotton fibers.
6 citations
,
April 1996 in “Journal of histochemistry and cytochemistry/The journal of histochemistry and cytochemistry” TGF-alpha is present in sheep and ferret skin and may affect hair growth without directly stimulating cell proliferation.
3 citations
,
January 1994 in “Journal of Society of Cosmetic Chemists of Japan” Hair grows slower and thinner with age, but a test tonic improved growth in alopecia subjects.
1 citations
,
June 2024 in “International Journal of Drug Delivery Technology” Herbal hair serums effectively promote hair growth and are safer than traditional treatments.
1 citations
,
January 2017 in “Elsevier eBooks” The document concludes that new treatments for hair loss may involve a combination of cosmetics, clinical methods, and genetic approaches.
April 2026 in “European Journal of Medical and Health Research” Women with hair loss had lower IGF-1 levels.
April 2024 in “The journal of phytopharmacology” Orchid callus extract can help hair grow and may be used in eco-friendly hair products.
January 2012 in “Journal of Natural Remedies” The Abrus precatorius extract can effectively promote hair growth similar to standard treatments.
September 2002 in “Dermatologic Surgery” The recipient site can affect the growth and survival of transplanted hair but not its thickness.
10 citations
,
January 2014 in “Genetics and Molecular Research” Liaoning Cashmere goat hair follicles show synchronized growth patterns with lowest activity in May.
120 citations
,
November 2014 in “Biological Reviews” The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.
81 citations
,
August 2014 in “Lasers in Surgery and Medicine” Red light therapy is safe and effectively increases hair growth in women with hair loss.
11 citations
,
October 1994 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride increases hair growth, prolongs hair cycle, and lowers dihydrotestosterone levels.
6 citations
,
September 2010 in “Animal” Selecting Angus cattle for earlier puberty lowers prolactin levels but doesn't affect hair growth.
May 2026 in “Dermatology Online Journal” Dermarollers for hair growth show mixed results and can cause risks like damage and infection.
107 citations
,
September 2002 in “Journal of Investigative Dermatology” Researchers found that hair shedding happens mostly when new hair is growing and involves a unique process.
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.
34 citations
,
December 1991 in “Annals of the New York Academy of Sciences” The conclusion is that small hair follicles cause baldness in macaques, and treatments like antiandrogens and minoxidil can prevent hair loss and promote regrowth.
27 citations
,
September 2017 in “Journal of Medicinal Food” Annurca apple supplement safely increases hair growth and keratin in humans.
11 citations
,
September 2012 in “Journal of animal physiology and animal nutrition” Higher protein diets with DL-methionine improve mink hair growth and fur quality.
7 citations
,
December 1987 in “Fertility and sterility” The vellus index is a simple, quick, and reliable method to assess and monitor hair growth, especially in hirsutism.
6 citations
,
January 2017 in “Journal of toxicologic pathology” Rabbit skin with active hair growth shows thicker, redder areas due to larger, more numerous hair follicles and increased blood vessels.
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.
6 citations
,
July 2009 in “Biomolecules & therapeutics” Combining MSM with MAP significantly promotes hair growth.
5 citations
,
September 2016 in “Journal of Cosmetic Dermatology” Nourkrin® with Marilex® may increase hair count by 35.7% in postpartum hair loss.
4 citations
,
September 2016 in “Molecular Medicine Reports” Specific genes influence hair and cashmere growth in Laiwu black goats.