29 citations
,
August 2005 in “Biopolymers” L-cysteine slows down the breaking of bonds in hair due to electrostatic interactions.
September 2018 in “Journal of Society of Cosmetic Chemists of Japan” Lipophilic Vitamin C improves damaged hair texture and condition.
May 2026 in “International Journal of Cosmetic Science” A plant-based treatment from Avena strigosa seeds effectively repairs and strengthens damaged hair.
February 2022 in “Fibers” Scientists created a non-toxic, sugar-based hair product that can style hair without damage.
15 citations
,
January 2016 in “Przeglad Menopauzalny” Eating a balanced diet with specific nutrients is important for menopausal women to manage hair loss.
January 2011 in “Journal of Society of Cosmetic Chemists of Japan” 18-MEA and SPDA can restore damaged hair's smoothness and reduce frizz.
August 2022 in “International Journal of Health Sciences (IJHS)” The combined treatment significantly improved hair growth and thickness compared to the control group.
June 2023 in “Skin Research and Technology” The supplement with amino acids, iron, selenium, and marine hydrolyzed collagen improved hair growth more than drug treatment alone, with most people tolerating it well.
March 2022 in “Annals of Bariatric Surgery” Protein supplements with zinc, iron, and B vitamins reduce hair loss after sleeve gastrectomy.
15 citations
,
October 1976 in “Biochemical Journal” Naked-mouse hair lacks certain proteins and has less soluble fibril.
7 citations
,
January 1959 in “Canadian Journal of Chemistry” Human and horse hair have similar end groups to wool and feathers.
January 2015 in “Journal of Nutrition and Health” Fish oil improves hair growth in diabetic and high-cholesterol rats.
72 citations
,
September 1975 in “Biology of Reproduction” Most zinc in rat sperm is in the tail, linked to structures similar to hair keratin.
16 citations
,
January 2021 in “BMC Genomics” Higher hair follicle density leads to more wool in rabbits, influenced by specific genes and lncRNAs.
4 citations
,
October 2022 in “Frontiers in public health” Cadmium chloride pollution can cause skin disorders, speed up aging, and prevent hair growth.
February 2025 in “Animals” Amino acid-complexed trace minerals improve hair quality and activity in senior dogs.
February 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” Tandem repeats significantly influence hair color, especially darker shades, across different ancestries.
September 2020 in “Research Square (Research Square)” Long noncoding RNAs help regulate hair follicle density in rabbits.
Taking enzyme food and collagen together improves hair health in middle-aged women more than taking them separately.
January 2013 in “Heilongjiang xumu shouyi” The compound additive improved growth and fur quality in blue foxes.
14 citations
,
April 2023 in “International Journal of Molecular Sciences” The hydrogel significantly speeds up skin wound healing.
January 2008 in “Chinese Journal of Spectroscopy Laboratory” Cysteine formation on hair indicates damage, best detected at pH 4.5.
9 citations
,
January 1981 Nucleophilic reagents break down hair keratin, forming more lanthionine and lysinoalanine than in wool.
71 citations
,
January 2014 in “Journal of Proteome Research” Women with PCOS have different levels of certain fats and proteins in their blood, which could help diagnose the condition.
11 citations
,
January 2014 in “The Scientific World Journal” Cynatine HNS improves hair and nail quality in 90 days.
7 citations
,
January 1982 in “Acta agriculturae Scandinavica” Mink use L-methionine and L-cystine slightly better than natural amino acids for hair growth, but D-methionine is not effective.
November 2025 in “Quality in Sport” Collagen supplements improve skin, hair, and nails, especially with vitamin C and minerals.
Ajuga reptans L. extracts have strong antioxidant, anti-inflammatory, liver-protective, antimicrobial, and wound-healing properties.
December 2012 in “Bulletin of Egyptian Society for Physiological Sciences” Copper (II) albumin complex improves healing of severe burns by its antioxidant, anti-inflammatory, and pain relief properties.
1 citations
,
March 2023 in “PubMed” Rosemary hair lotion significantly promotes hair growth and could be a potential alternative to commercial hair growth products.