12 citations
,
September 2018 in “International Journal of Cosmetic Science” Palmitoyl tetrapeptide-20 may help reduce hair greying and increase melanin production.
7 citations
,
February 2019 in “International Journal of Dermatology” Gray hair is caused by reduced melanin production or transfer issues, linked to aging and possibly health conditions, with treatments focusing on color camouflage.
3 citations
,
November 2023 in “Frontiers in cell and developmental biology” Melanocytes are important for skin and hair color and protect the skin from UV damage.
2 citations
,
January 2020 in “BioMed Research International” Phaeodactylum tricornutum extract helps hair follicle cells grow by activating the ERK1/2 pathway.
1 citations
,
October 2019 in “International Journal of Dermatology and Venereology” Zebrafish help understand genetic causes of skin pigment disorders like albinism.
The document concludes that understanding hair's composition and the effects of treatments can lead to better hair care products.
April 2012 in “J. Willard Marriott Library” Cannabinoids like THC and THCA get into hair through skin oils, not hair color.
53 citations
,
November 1997 in “Journal of Forensic Sciences” Darker hair in guinea pigs holds more codeine than lighter hair.
1 citations
,
December 2018 in “IOP conference series. Materials science and engineering” CD34+ hair follicle stem cells can become melanin-producing cells for treating skin conditions.
October 2015 in “Cosmetic Dermatology” Hair is complex, varies in type, and plays a big role in attractiveness and culture.
24 citations
,
January 2015 in “Evidence-based Complementary and Alternative Medicine” Polygonum multiflorum can promote hair growth when taken orally or applied topically.
January 2019 in “International Journal of Plant Animal and Environmental Sciences” The extract from marine green alga Chlamydomonas sp. W80 has antioxidant, anti-inflammatory, anti-aging, hair growth, immune-boosting, and skin lightening effects.
June 2008 in “British Journal of Dermatology” UK medical students lack dermatology education, liver biopsy patients with risk factors show more fibrosis, and certain fungi resist drugs due to melanin; genetics may influence female hair loss.
3 citations
,
November 2022 in “Frontiers in Oncology” Melanin may help melanoma cells grow by aiding their metabolism.
3 citations
,
December 2024 in “International Journal of Dermatology” Premature hair graying is caused by genetics, stress, and lifestyle, and affects mental health.
April 2026 in “Science & Justice” Hair analysis can confirm drug use but can't accurately measure how much was taken.
11 citations
,
May 2021 in “Journal of Cosmetic Dermatology” Platelet-rich plasma therapy could be an effective treatment for melasma with minimal side effects.
26 citations
,
February 2022 in “Journal of pineal research” Melatonin affects skin and hair color and protects skin cells, with potential benefits for hair growth and skin health.
9 citations
,
June 2019 in “JAAD case reports” Laser hair removal can help treat acne keloidalis nuchae, but results vary and a standard scoring system is needed.
6 citations
,
July 2023 in “Nature cell biology” SOX9 helps determine stem cell roles by interacting with DNA and proteins that control gene activity.
July 2025 in “PNAS Nexus” A new tool accurately identifies human cornea cell states and key factors.
1160 citations
,
November 2018 in “Physiological Reviews” The document concludes that better targeted treatments are needed for wound healing, and single-cell technologies may improve cell-based therapies.
139 citations
,
December 2020 in “Cell Stem Cell” Male hormones affect COVID-19 severity and certain drugs targeting these hormones could help reduce the risk.
23 citations
,
February 2015 in “The American journal of pathology” Keratosis pilaris is often linked to genetic mutations and causes skin and hair abnormalities, regardless of those mutations.
1 citations
,
April 2009 in “The Proceedings of the International Plant Nutrition Colloquium XVI” Certain genes may promote longer root hairs in plants when phosphorus is low.
12 citations
,
November 2020 in “Molecules” Carvone helps treat skin issues by reducing melanin and stopping harmful cell growth.
6 citations
,
September 2022 in “Frontiers in pharmacology” Epimedium extract helps increase skin pigmentation and could be a new treatment for conditions with reduced pigmentation.
December 2025 in “Journal of Advanced Biotechnology and Experimental Therapeutics” Mesenchymal stem cells may help reduce melanin in UV-exposed mice.
January 2020 in “Sumatera Medical Journal” Family history and stress are linked to early hair graying, with family history being the main factor.
November 2011 in “Informa Healthcare eBooks” Environmental, chemical, mechanical, and personal health factors can all damage hair and contribute to hair loss or changes in hair quality.