5 citations
,
July 2022 in “PubMed” Hair dyes, shampoos, and conditioners often cause scalp allergies due to common allergens like p-phenylenediamine and nickel.
29 citations
,
April 2017 in “Macromolecular bioscience” Scientists created tiny pH-sensing gels that can safely measure the pH levels inside hair follicles.
13 citations
,
June 2021 in “Carcinogenesis” Certain hair straighteners and dyes may increase ovarian cancer risk, especially in African American/Black women.
1 citations
,
July 2018 in “Elsevier eBooks” Avoid chemical and physical damage to protect hair.
January 1990 in “Springer eBooks” Some chemicals can permanently or temporarily remove color from skin and hair, which can be distressing and is not well-regulated in cosmetics.
September 2020 in “Benha Journal of Applied Sciences” Protein hair straighteners damage the hair more than hair dyes.
October 2006 in “Eclética Química” Three methods accurately measure finasteride in tablets using dyes and bromate-bromide.
24 citations
,
April 2016 in “Experimental Dermatology” Chemical treatments like dyeing, perming, and bleaching damage hair by altering amino acids and lipids.
17 citations
,
May 2019 in “Molecules” These temporary hair dyes may be harmful to human health.
69 citations
,
January 2002 in “Journal of biomedical optics” Dyes can penetrate human skin and hair follicles up to 1.2 mm deep and the sebaceous gland can store dye; Indocyanine Green lotion was made for safe dyeing and monitoring.
June 2026 in “Applied and Computational Engineering” Understanding different hair dye types can make them safer and better.
Ayurvedic treatment improved hair fall and scalp health.
3 citations
,
January 2006 in “Eclética Química” Three cost-effective methods accurately measure finasteride in pharmaceuticals, better than current techniques.
34 citations
,
January 2012 in “Journal of Dermatological Science” Hydrogen peroxide and monoethanolamine in hair dye can cause dermatitis and hair loss.
3 citations
,
June 2017 in “Environmental health perspectives” Exposure to certain glycol ethers during pregnancy may be linked to lower verbal comprehension in children.
2 citations
,
January 2019 in “Applied clinical research, clinical trials and regulatory affairs” Different countries have regulations to ensure the safety of hair care products, with some recalling hair straighteners due to high formaldehyde.
September 2023 in “International journal of drug delivery technology” The herbal shampoo effectively cleans and controls fungal growth.
24 citations
,
January 2006 in “Dermatologic clinics” Hair sunscreens are important for maintaining hair's cosmetic value.
15 citations
,
February 2017 in “International Journal of Women's Dermatology” Hair aging and loss are caused by genetics, hormones, environment, and grooming, with treatments like minoxidil effective for certain types of hair loss.
9 citations
,
November 2000 in “Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE” Dyeing hair can help target and destroy hair follicles selectively.
2 citations
,
April 2021 in “International Journal of Pharmaceutics” Serum formulations were better at delivering molecules to the hair bulb than nanoparticles.
1 citations
,
April 2018 in “International journal of Ayurvedic medicine” Certain Ayurvedic herbs may help manage premature greying of hair.
April 2024 in “Frontiers in pharmacology” Cynoglossum amabile has medicinal potential but poses safety concerns due to liver toxicity.
September 2023 in “Asian journal of beauty & cosmetology” Lipids are important for healthy hair, but their exact role is not fully understood and needs more research.
March 2013 in “Molecular & Cellular Toxicology/Molecular & cellular toxicology” m-Aminophenol in hair dye can cause skin cell toxicity and stress responses.
September 1995 in “American Journal of Contact Dermatitis” Antiyeast treatments work better for seborrheic dermatitis than steroids, and other findings include increased skin bacteria under plastic wrap, a nasal cell defect in Staphylococcus aureus carriers, quick resolution of certain skin reactions, high rubber latex allergy in spina bifida patients, and glyceryl monopentadecanoate's effectiveness for male hair loss.
December 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Thermal protectants help reduce hair damage from heat styling.
December 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Thermal protectants help reduce hair damage from heat styling.
152 citations
,
December 2003 in “Micron” As people age, their hair follicles produce less pigment, leading to gray and white hair, due to factors like reduced enzyme activity and damage to melanocyte DNA.
9 citations
,
April 1985 in “Canadian Journal of Zoology” Moose have unique interdigital glands with green hairs and larger glands during mating season.