January 2026 in “SSRN Electronic Journal” Riboflavin with blue light speeds up hair dyeing, making it faster, safer, and long-lasting with less hair damage.
January 1996 in “대한피부과학회지” Wait at least 8 weeks between hair dyeing for cuticle recovery.
7 citations
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January 2013 in “Journal of Cosmetics, Dermatological Sciences and Applications” Argan oil and cupuassu butter can protect hair after dyeing.
17 citations
,
January 2016 in “American Journal of Epidemiology” Men with male pattern baldness have a higher risk of dying from prostate cancer.
January 2025 in “International Journal of Trichology” Severe hair loss may increase the risk of dying from COVID-19.
June 2017 in “Journal of The American Academy of Dermatology” LED light helps hair follicle cells grow and prevents them from dying by activating certain cell pathways.
May 2017 in “Journal of The American Academy of Dermatology” LED light helps human hair root cells grow and prevents them from dying by activating specific growth pathways.
June 2013 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” People with moderate or severe hair loss are at a higher risk of dying from diabetes and heart disease.
20 citations
,
May 2018 in “The Journal of Urology” Men taking 5-alpha-reductase inhibitors before or after bladder cancer diagnosis had a lower risk of dying from the disease.
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.
37 citations
,
October 2014 in “Maturitas” Men's hair loss is caused by hormones and genes, and can be treated with medication and surgery, while graying is due to aging and has no prevention except dyeing.
15 citations
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April 2022 in “Immunology” Men and women get COVID-19 at similar rates, but men tend to get sicker and have a higher risk of dying, while women usually have stronger immune responses and vaccine reactions.
June 2025 in “OPAL (Open@LaTrobe) (La Trobe University)” A new hair dye method uses polyphenols and oxidation to create a long-lasting brown color on gray hair.
January 2020 in “대한미용학회지” Permanent hair dye reduces sulfur content in both gray and black-brown hair.
2 citations
,
May 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Stem cells help remove dead cells to keep tissues healthy by balancing cell replacement and clearance.
3 citations
,
January 2019 in “Electronic Imaging” The device accurately estimates natural hair color at the roots in real time.
1 citations
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January 2021 in “SSRN Electronic Journal” Nanomaterials can make hair care products work better and safer.
May 2023 in “Journal of pharmacognosy and phytochemistry” The study established quality standards for Sphagneticola calendulacea stem and suggested it may have therapeutic benefits.
20 citations
,
September 1998 in “PubMed” Gorillas in Gabon improved after protein supplements were added to their diet.
43 citations
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January 2013 in “Indian Journal of Dermatology, Venereology and Leprology” The article concludes that advancements in hair cosmetics require dermatologists to stay informed about products and their potential risks, including allergies and higher risks for hairdressers.
40 citations
,
February 2002 in “International Journal of Dermatology” Permanent hair dye damages hair but it mostly recovers after 8 weeks; using certain hair care products can help repair it.
6 citations
,
April 2010 in “International Journal of Advances in Scientific Research” Wedelia biflora and Wedelia chinesis have important traditional medicinal uses and potential for modern medicine.
3 citations
,
April 2023 in “Research Journal of Pharmacy and Technology” Calendula Officinalis extract can be used to create an effective natural hair dye.
2 citations
,
September 2021 in “International Journal of Ayurvedic Medicine” Despite adverse effects, people continue using hair dyes for aesthetic reasons, highlighting the need for safer options.
1 citations
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December 2021 in “Annals of phytomedicine” The herbal hair dye with a 1:2 henna to indigo ratio works well, is safe, and eco-friendly.
1 citations
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April 2018 in “International journal of Ayurvedic medicine” Certain Ayurvedic herbs may help manage premature greying of hair.
1 citations
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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.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Polyherbal hair dye cream is safe, effective, and eco-friendly, offering better color and no side effects.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Polyherbal hair dye creams are safer, effective, eco-friendly, and economical alternatives to synthetic dyes.
October 2025 in “Coloration Technology” Delipidised wool is brighter, dyes better, and is more eco-friendly.