April 2014 in “Journal of evolution of medical and dental sciences” Women over forty can maintain skin and hair health with lifestyle and dietary changes.
35 citations
,
September 1994 in “Journal of Investigative Dermatology” November 2022 in “International journal of trichology” Glyoxylic acid straighteners cause more protein loss but have similar hair strength effects as traditional alkaline straighteners.
September 2023 in “Journal of Natural Fibers” Drying hair with a microfiber towel better maintains hair strength and structure than using a cotton towel or blow-drier.
July 2024 in “Experimental Dermatology” AP collagen peptides help hair grow and improve hair health.
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.
2 citations
,
June 2018 in “Cosmetics” AMPD is a better and less damaging alternative to ammonium hydroxide for hair bleaching.
March 2026 in “Dyes and Pigments” Riboflavin and blue light speed up genipin hair dye, making it fast, glossy, stable, and eco-friendly.
November 2015 in “Summit (Simon Fraser University)” Surgical stress temporarily changes hair fiber dimensions, returning to normal after four weeks.
March 2016 in “The Korean Society of Beauty and Art” MSG-based hair hardener improves hair thickness, strength, and wave retention after perms.
51 citations
,
January 2014 in “International journal of trichology” Shampoo pH can affect hair health, with alkaline shampoos potentially causing damage and acidic shampoos reducing frizz.
36 citations
,
July 2004 in “Journal of Controlled Release” The dye quickly penetrates hair follicles, mainly through the gap, not the surrounding skin.
12 citations
,
July 2017 in “International Journal of Cosmetic Science” N‐AOHPA is a promising alternative to traditional surfactants for better hair conditioning.
10 citations
,
December 2001 in “PubMed” The conclusion is that substances can penetrate hair fibers through multiple pathways, including both the cell membrane complex and the non-keratinous parts.
3 citations
,
July 2023 in “Acta Biomaterialia” PepACS offers a safer, eco-friendly way to perm, dye, and repair hair.
3 citations
,
January 2002 in “Springer eBooks” Alkaline hair relaxers damage hair, but cationic and non-ionic polymers can help reduce this damage.
2 citations
,
July 2023 in “Cosmetics” Surfactants in shampoos and conditioners remove some but not all lipids from hair, and more research is needed to understand their full impact.
1 citations
,
June 2023 in “Skin Research and Technology” Hair-coating shampoos dye better initially, but hair-oxidation shampoos keep color longer and may damage hair more.
1 citations
,
August 2022 in “Chemical engineering journal advances” Scientists made human hair magnetic by coating it with special nanoparticles.
July 2025 in “Journal of Cosmetic Dermatology” The model shows how heat damages hair, helping test hair care products.
November 2024 in “International Journal of Cosmetic Science” Haircare products with a pH between 5 and 7 are best for maintaining healthy hair.
Different treatments change the strength and flexibility of human hair.
February 1999 in “The anatomical record” Two mouse mutants have defective hair cuticle cross-linking.
97 citations
,
January 2005 in “Wear” Human hair and skin friction vary by ethnicity, hair type, and environmental conditions.
56 citations
,
January 1996 in “Journal of Forensic Sciences” Dye enters hair at the edges of cuticle cells and penetrates more from water than alcohol-based solutions.
44 citations
,
November 2012 in “International journal of nanomedicine” A new method improves silicone oil coating on hair, enhancing moisture and lubrication.
34 citations
,
January 2011 in “Annals of dermatology/Annals of Dermatology” Using a hair dryer at 15 cm with continuous motion causes less damage than natural drying.
30 citations
,
July 2000 in “PubMed” Hair has unevenly distributed proteins and lipids, with lipids mainly in the cuticle and proteins in the cortex and medulla.
23 citations
,
March 2017 in “Journal of Investigative Dermatology” An artificial lipid barrier can restore hair growth in cases of SCD1 deficiency.
22 citations
,
September 2000 in “Journal of Investigative Dermatology” μ-Crystallin may help hair growth by affecting thyroid hormone levels in mouse hair follicles.