December 2024 in “Majalah kedokteran Bandung/Majalah Kedokteran Bandung” Carrot seed oil thickens hair roots and tips, with 75% concentration being most effective.
November 2023 in “Ensaios e Ciência C Biológicas Agrárias e da Saúde” Optimal hair heat protectant spreadability is achieved with 4% shea butter and coconut oil, and 0.64% cetostearyl alcohol.
April 2023 in “Journal of Investigative Dermatology” EGFR helps protect hair follicles from bacterial infections.
January 2022 in “International journal of advanced engineering research and sciences” Hair extensions can improve self-esteem but may cause hair loss if used improperly.
January 2020 in “Indian dermatology online journal” Hair styling products can damage hair over time.
February 2019 in “International Journal of Dermatology and Clinical Research” Nε-(carboxymethyl) lysine delays hair growth by blocking a key protein.
April 2017 in “Journal of Investigative Dermatology” Early and late matrix progenitors in hair follicles create different cell layers, with early ones forming the companion layer and later ones forming the inner root sheath and hair shaft.
April 2017 in “Journal of Investigative Dermatology” Sweat glands and hair follicles are determined by opposing signals, with BMPs promoting sweat glands and blocking BMPs leading to hair follicles.
August 2016 in “Journal of Investigative Dermatology” The enzyme CD73 helps control human hair growth and could be targeted to treat hair growth disorders.
Prussian Blue causes hair cuticles to detach, weakening the hair.