March 2026 in “Zenodo (CERN European Organization for Nuclear Research)” The natural hair dye is safe, effective, and good for scalp health.
March 2026 in “Zenodo (CERN European Organization for Nuclear Research)” The natural hair dye is safe, effective, and good for scalp health.
4 citations
,
May 2014 in “PubMed” Monoethanolamine-based hair colorants can cause more damage to hair than ammonia-based ones.
62 citations
,
December 1941 in “Experimental biology and medicine” Eating phenylthiocarbamide made all the rats' hair go gray, but some returned to their original color after stopping.
May 2024 in “Cardiometry” Hair transplants can sometimes restore original hair color in gray or white hair.
February 2026 in “American Scientific Research Journal for Engineering, Technology, and Sciences (Global Society of Scientific Research and Researchers)” Gray hair requires special coloring techniques and care to maintain quality and strength.
A natural hair dye from cuttlefish ink and chitosan effectively colors hair black without harmful chemicals.
November 2023 in “Journal of the American Academy of Dermatology” Skin of color can spontaneously repigment after a phenol-croton oil chemical peel.
84 citations
,
April 2005 in “Dermatologic Clinics” Treatments for melanin disorders exist, but more effective options needed.
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.
2 citations
,
July 2020 in “International Journal for Research in Applied Science and Engineering Technology” Pseudomonas DL17 can completely break down the harmful dye Sunset Yellow FCF in 48 hours.
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.
17 citations
,
May 2019 in “Molecules” These temporary hair dyes may be harmful to human health.
13 citations
,
March 2006 in “International Journal of Cosmetic Science” The study found that a polymer treatment changes the charge on hair surfaces, making bleached hair smoother and less porous.
1 citations
,
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
,
October 2023 in “PloS one” Cosmetic hair treatments can increase hair testosterone levels, while natural hair color does not affect it.
2 citations
,
December 1988 in “PubMed” C.I. Acid Orange 3 caused cancer in female rats but not in male rats or mice.
66 citations
,
February 1985 in “Archives of dermatological research” Hair dyes penetrate the scalp very minimally, less than 1%.
March 2007 in “The FASEB Journal” Henna mixed with PPD can cause skin reactions, scarring, and a specific type of baldness, and needs more research to understand these effects.
8 citations
,
September 2004 in “Contact dermatitis” Avoiding dyed wigs and clothing improved severe allergic reactions in a woman treated with diphencyprone.
April 2024 in “Authorea (Authorea)” Stopping heptaminol medication reversed hair color loss in a patient on dialysis.
4 citations
,
August 2016 in “PubMed” Repeated dyeing and shampooing cause hair color loss and damage.
15 citations
,
January 2017 in “Pigment International” Early hair graying is often inherited and influenced by genetics, environment, and lifestyle, but treatment options are limited.
March 2026 in “Portuguese Journal of Dermatology and Venereology” Avoid hair dye after microneedling to prevent scalp pigmentation.
May 2025 in “Journal of Photochemistry and Photobiology B Biology” Blue LED light improves hair treatments for Caucasian and Asian hair but not for African hair.
June 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Herbal hair dye with Bhringraj is effective, safe, and eco-friendly.
4 citations
,
June 2022 in “Journal of cleaner production” New eco-friendly method strengthens and sets hair using light and causes less damage.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” The herbal mehendi gel safely colors hair and nourishes the scalp.
6 citations
,
January 2019 in “Indian Journal of Pharmacology” Melitane 5% and hair supplements improved hair color in a 14-year-old with early graying.
1 citations
,
January 1988 Cosmetic treatments after chlorination damage hair more than treatments before.