2 citations
,
January 2015 in “Sen'i Gakkaishi” Washing permed hair after using thioglycolic acid helps reform strong bonds, making hair stronger.
February 2025 in “International Journal of Cosmetic Science” Protein carbonylation is a sensitive marker for oxidative damage in hair, especially from light exposure.
April 2026 in “Cosmetics” The shampoo effectively covers gray hair gradually and maintains color after multiple washes.
19 citations
,
July 2018 in “ACS biomaterials science & engineering” Bleaching and combing damage hair's surface and mechanical properties.
4 citations
,
May 2014 in “PubMed” Monoethanolamine-based hair colorants can cause more damage to hair than ammonia-based ones.
2 citations
,
January 2004 in “PubMed” Conditioners with PQ-10 soften the flat part of hair cuticles but harden the edges.
6 citations
,
October 2003 in “Journal of applied polymer science” A new method using poly(ethylene imine) improves hair dyeing at lower temperatures with better color retention.
2 citations
,
June 2018 in “Cosmetics” AMPD is a better and less damaging alternative to ammonium hydroxide for hair bleaching.
October 2021 in “Authorea (Authorea)” New hair perming method using tyrosine is gentler and can be done with a blow-dryer.
March 2021 in “International journal for research in applied science and engineering technology” Herbal hair dyes from tannin-rich plants are effective and safer than synthetic dyes.
January 2012 in “Jounal of The Korean Society of cosmetology” Applying conditioner mid-treatment reduces hair damage during perms.
November 2017 in “Koubunshi rombunshuu/Kōbunshi ronbunshū” Hematin in shampoo helps repair and straighten damaged hair.
November 2023 in “Journal of the American Academy of Dermatology” Skin of color can spontaneously repigment after a phenol-croton oil chemical peel.
September 2019 in “Journal of Investigative Dermatology” PCE-DP brightens skin and promotes hair growth by enhancing cell growth and reducing melanin uptake.
December 2023 in “Journal of molecular structure” Hair treatments and dehydration affect hair's lipid and protein behavior, influencing its flexibility and appearance.
2 citations
,
January 2006 in “International Journal of Cosmetic Science” The study found that certain conditioning compounds can penetrate hair and potentially improve its resistance to damage.
20 citations
,
July 1988 in “Clinics in dermatology” Thioglycolate lotions are the most popular method for permanent waving and hair straightening.
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.
Hair fibers degrade and change color in very basic water.
January 1989 in “Skin research” The hair regrowth tonic effectively increased hair count and was safe for treating male pattern baldness.
1 citations
,
December 2022 in “Journal of applied biological chemistry” TRP-hair essence protects hair from heat damage, maintains color, and strengthens hair.
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.
1 citations
,
September 2008 in “International Journal of Cosmetic Science” Using chelants in hair dye reduces fiber damage by preventing harmful radicals.
August 2025 in “International Journal of Advanced Research in Science Communication and Technology” Advanced hair serums can improve hair growth, density, and texture.
January 2026 in “International Journal of Cosmetic Science” Hair vibrancy involves how hair looks and feels, helping create better hair products.
January 2021 in “Indonesian Journal on Medical Science” The hair tonic with aloe vera and celery was successfully made, with the first formula being the most stable.
13 citations
,
March 2010 in “International Journal of Cosmetic Science” Hair coloring increases copper and calcium uptake, damaging hair and reducing shine.
August 2024 in “Cosmetics” K18® and Olaplex® both effectively repair bleached hair, improving its strength, smoothness, and overall health.
November 2022 in “International journal of biology, pharmacy and allied sciences” The new herbal shampoo is effective, safe, and more affordable than other products.
9 citations
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July 2022 in “Journal of Cosmetic Dermatology” The ammonia-free hair dye is safe and improves hair shine, color, moisture, porosity, and combability.