233 citations
,
February 2018 in “Polymers” Chitin and chitosan are useful in cosmetics for oral care, haircare, and skincare, including UV protection and strength improvement.
59 citations
,
November 2015 in “International Journal of Cosmetic Science” Oxidative stress damages hair and contributes to aging, and managing it can help maintain hair health.
51 citations
,
January 2004 in “Skin Pharmacology and Physiology” The document explains hair growth and shedding, factors affecting it, and methods to evaluate hair loss, emphasizing the importance of skin biopsy for diagnosis.
June 2025 in “International Journal for Research in Applied Science and Engineering Technology” The herbal shampoo is a safer and effective alternative to the commercial product.
January 2024 in “Pharmacophore” Herbal nanocosmeceuticals are more effective and eco-friendly than traditional skincare products.
September 2023 in “Scientific reports” Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.
July 2022 in “Research Square (Research Square)” Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.
January 1998 in “Lasers in Surgery and Medicine” Lasers are effective and safe for various medical treatments, including cancer, wound healing, and skin conditions.
209 citations
,
September 2008 in “Dermatologic Therapy” Androgens can both increase and decrease hair growth in different parts of the body.
98 citations
,
February 2007 in “Seminars in Cell & Developmental Biology” Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.
66 citations
,
July 2015 in “Journal of Molecular Biology” The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.
40 citations
,
August 2018 in “Skin appendage disorders” Some alternative treatments for hair loss might work, but more research is needed.
39 citations
,
September 2016 in “Expert Opinion on Drug Delivery” New drug delivery methods can make natural compounds more effective and stable.
9 citations
,
April 2006 in “American Journal of Pathology” SGK3 is essential for proper hair growth and health.
October 1890 in “Science” Pilocarpin can cause hair regrowth and color change in some cases but not in others, and it may have side effects in animals.
6 citations
,
January 2009 in “Elsevier eBooks” The skin has multiple layers and cells, serves as a protective barrier, helps regulate temperature, enables sensation, affects appearance, and is involved in vitamin D synthesis.
1 citations
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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.
December 2023 in “Frontiers in Medicine” Hair samples can reliably monitor tacrolimus levels in kidney transplant patients.
7 citations
,
June 2015 in “EMBO Reports” Forensic DNA phenotyping can help generate new leads in cold cases but faces accuracy, legal, and acceptance challenges.
63 citations
,
February 2017 in “ACS biomaterials science & engineering” Polydopamine is a safe, effective, and permanent hair dye that turns gray hair black in one hour.
14 citations
,
May 2022 in “Animals” Female goslings have darker feathers than males due to more melanin.
2 citations
,
August 2024 in “Indian Dermatology Online Journal” Premature graying of hair is mainly caused by genetics, stress, and environment, with potential treatments being explored.
April 2026 in “Cosmetics” The shampoo effectively covers gray hair gradually and maintains color after multiple washes.
November 2025 in “Cosmetics” Rice germ oil improves hair health, but adding ferulic acid offers limited benefits and may worsen chemically damaged hair.
August 2024 in “Cosmetics” K18® and Olaplex® both effectively repair bleached hair, improving its strength, smoothness, and overall health.
November 2023 in “Cosmetics” Rice derivatives in conditioners protect and improve hair health.
January 2022 in “Sustainable development goals series” The document concludes that significant investment in agricultural innovation is necessary to achieve global food security and nutrition.
30 citations
,
November 2019 in “Genetics selection evolution” Chinese domestic goats have unique genetic traits due to domestication and geographic isolation.
20 citations
,
February 2023 in “Biology” Innovative cosmetics could safely change hair color by targeting biological hair pigmentation processes.
31 citations
,
April 2019 in “Journal of Cutaneous Pathology” Hair becomes gray and thin as we age, and while most hair loss in older people is due to genetics, there's a chance for gray hair to regain color under certain conditions.