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.
February 2018 in “Chinese Journal of Dermatology” Diammonium glycyrrhizinate at 0.01 μmol/L promotes hair growth by activating the Wnt/β-catenin pathway.
8 citations
,
June 1981 in “Clinica Chimica Acta” March 2022 in “Journal of drug delivery and therapeutics” Sea hibiscus leaf extract at 30% concentration in a hair tonic significantly increased hair growth in guinea pigs.
April 2018 in “Journal of Investigative Dermatology” Stabilizing HIF1A in hair follicles increases glycolysis, which may help reduce oxidative stress and support hair growth.
June 2019 in “DOAJ (DOAJ: Directory of Open Access Journals)” Trace element deficiencies may contribute to diffuse alopecia.
47 citations
,
June 1996 in “International Journal of Legal Medicine” Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.
3 citations
,
February 1983 in “Journal of Investigative Dermatology” Hair plucking quickly increases antizyme, reducing a specific enzyme activity in rats.
64 citations
,
April 1972 in “American Journal of Clinical Nutrition” Hair chromium levels reflect nutritional status after standard washing.
July 2023 in “Hair transplant forum international” Eating the right foods can improve hair health by reducing damage and providing proper nutrients.
November 2022 in “Journal of Investigative Dermatology” Butyrate helps hair grow longer, improves hair cell health, increases pigment production, and boosts hair's natural defenses.
14 citations
,
January 2001 in “Clinical chemistry” Hair can be used to measure cancer-related chemicals noninvasively.
24 citations
,
June 1999 in “Mechanisms of Development” Ornithine decarboxylase is crucial for hair growth and follicle development.
8 citations
,
October 2020 in “International Journal of Molecular Sciences” Nonanal from fruits and vegetables promotes hair growth by increasing growth factors.
9 citations
,
June 1947 in “Analytical Chemistry” Cold waving solutions quickly reduce cystine to cysteine in hair.
36 citations
,
December 1991 in “Journal of Dermatological Science” Human nails contain both skin and hair keratins, each needing different extraction methods.
15 citations
,
October 2004 in “Colloids and surfaces. B, Biointerfaces” Holes in mature hair are likely caused by the removal of substances during hair care.
28 citations
,
March 1942 in “Journal of Endocrinology” Male rats grow hair faster than females, and certain hormones can slow or slightly increase hair growth, but not significantly beyond natural rates.
4 citations
,
January 2004 DanGuiBoHyulTangGami-Bang helps hair growth but doesn't extend the growth period or affect hair follicle cells significantly.
January 2023 in “International journal of pharmacognosy and clinical research” The polyherbal hair oil with curry leaves, fenugreek, and other natural ingredients improves hair texture and treats hair issues.
54 citations
,
September 2000 in “Archives of dermatology” A hair-straightening product caused widespread hair loss and scalp injuries, mainly affecting African American women.
January 2024 in “Uttar Pradesh journal of zoology” Chemical treatments severely damage hair cuticles, especially in previously treated hair.
Acidic sandy clay damages archaeological hair the most, while dry conditions preserve but make it brittle; silicone oil can help keep the hair flexible.
June 2022 in “International Journal of Research -GRANTHAALAYAH” Antioxidants like catalase are important for preventing hair loss conditions like alopecia.
1 citations
,
December 2018 in “IntechOpen eBooks” Human hair shows promise for non-invasive medical testing, but more research is needed to standardize its use.
3 citations
,
April 2015 in “Current problems in dermatology” A more sensitive assay was developed to detect enzyme activity converting arginine to citrulline in hair follicles.
3 citations
,
January 1966 in “PubMed”
1 citations
,
December 2021 in “The Open Dermatology Journal” Herbal hair oil with certain herbs can improve hair growth.
September 2025 in “Biochemical and Cellular Archives/Biochemical and cellular archives” Herbal hair care products are effective, safe, and eco-friendly alternatives to synthetic ones.
January 2026 in “British Journal of Dermatology” Caffeine and DMG increase calcium influx in hair follicle cells without being toxic.