December 2022 in “Deleted Journal” Sheep wool keratin solution safely and effectively promotes hair growth.
54 citations
,
January 2013 in “Journal of Biological Macromolecules” A new method effectively separates keratin-associated proteins and keratin from human hair.
18 citations
,
October 2018 in “Nutrients” Annurca apple extract promotes hair growth by changing hair follicle metabolism to boost keratin production.
14 citations
,
September 1954 in “Textile Research Journal” Hair absorbs different substances from solutions based on pH levels.
10 citations
,
January 2012 in “International Journal of Cosmetic Science” Thioglycolic acid mainly affects the unordered areas in hair structure.