10 citations
,
January 2012 in “International Journal of Cosmetic Science” Thioglycolic acid mainly affects the unordered areas in hair structure.
March 2016 in “The Korean Society of Beauty and Art” MSG-based hair hardener improves hair thickness, strength, and wave retention after perms.
31 citations
,
November 2003 in “Journal of Occupational Health” Thioglycolic acid in hair products may pose reproductive and cancer risks for hairdressers.
Hair care products can cause skin irritation and allergies.
3 citations
,
August 2008 in “PubMed” Repeated digital perming with sodium thioglycolate lotion significantly damages hair protein and structure.
May 2009 in “International Journal of Cosmetic Science” Permanent waving damages hair protein and weakens hair, especially with repeated treatments using sodium thioglycolate.
February 2022 in “Cosmetic Dermatology” Permanent hair waving uses chemicals to create long-lasting curls.
18 citations
,
July 2015 in “Journal of cosmetic dermatology” Straightening and coloring hair, especially with sodium hydroxide, greatly increases protein loss.
9 citations
,
June 1947 in “Analytical Chemistry” Cold waving solutions quickly reduce cystine to cysteine in hair.
1 citations
,
April 2021 in “Han'gug miyong haghoeji/Journal of the Korean society of cosmetology” Aspartic acid at 0.75% makes perms more effective and less damaging to hair.
18 citations
,
January 2008 in “Sen'i Gakkaishi” Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.
August 2021 in “Han'gug miyong haghoeji/Journal of the Korean society of cosmetology” Using natural polyphenol cross-linkers like tannic acid and green tea extract in perm treatments improves curling and protects hair.
4 citations
,
March 2007 in “Annales de Dermatologie et de Vénéréologie” Hair care products can cause skin irritation and allergies due to certain chemicals.
April 2023 in “Han'gug miyong haghoeji/Journal of the Korean society of cosmetology” Direct heat perms cause more damage to hair than softening heat perms.
24 citations
,
December 2018 in “Life sciences” Lysophosphatidic acid is important for skin health and disease, and could be a target for new skin disorder treatments.
12 citations
,
July 2021 in “Scientific Reports” Glutamic acid helps increase hair growth in mice.
5 citations
,
May 1983 in “Australian journal of biological sciences” Certain amino acid analogues can inhibit wool and hair growth and affect fiber strength.
January 2026 in “Food Science and Human Wellness” Krill oil may help reduce prostate enlargement and growth.
June 2025 in “Samarra Journal of Pure and Applied Science” A new method accurately measures minoxidil in tablets.
22 citations
,
April 2006 in “Journal of Dermatological Science” Vitamin C derivative increases versican in cells, potentially aiding hair growth.
1 citations
,
May 2015 in “Journal of The American Academy of Dermatology” Finasteride for hair loss in young men may significantly increase the risk of sexual dysfunction.
January 2026 in “Food and Nutrition Sciences” USPlus PRO saw palmetto extract improves urinary symptoms and is safe for men.
May 2024 in “Brazilian Journal of Hair Health” Finasteride-loaded nanoparticles were successfully created for potential improved hair growth treatment.
February 2025 in “International Journal of Cosmetic Science” A new amino acid derivative, ATS, improves hair texture and moisture, making it easier to straighten curly hair.
5 citations
,
May 2024 in “Molecules” Glycyrrhetinic acid from licorice may help treat acne by reducing inflammation and oil production.
20 citations
,
July 1988 in “Clinics in dermatology” Thioglycolate lotions are the most popular method for permanent waving and hair straightening.
43 citations
,
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.
4 citations
,
January 2007 in “Sen'i Gakkaishi” Permed hair degrades faster and shows more damage after protease treatment compared to untreated hair.
3 citations
,
January 2009 in “Eclética Química” A simple and quick method was found to measure minoxidil in drugs accurately.
May 2023 in “Frontiers in veterinary science” A young tapir with a rare skin condition improved after treatment with wound cleaning, cream, and oral medication.