October 2025 in “International Journal of Women’s Dermatology” In a cross-sectional analysis of 58 hair growth cosmeceuticals marketed for women or unisex use, this study found that ingredients with potential environmental hazards, particularly phenoxyethanol and synthetic fragrances, are commonly present, while substances like sodium lauryl sulfate, parabens, and microbeads were not detected.
3 citations
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June 2017 in “Environmental health perspectives” Exposure to certain glycol ethers during pregnancy may be linked to lower verbal comprehension in children.
June 2024 in “Frontiers in pharmacology” This study found that a 2-deoxy-D-ribose gel stimulated hair follicle growth in mice with androgenic alopecia, showing effects similar to minoxidil without additional benefits from combining the two treatments.
December 2022 in “Journal of Tropical Pharmacy and Chemistry” This study evaluated a hair tonic formulated from oil palm leaf extract, finding it demonstrated very strong antioxidant activity and could prevent hair decolorization from sun exposure, with effective concentrations ranging from 25 to 200 ppm.
10 citations
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December 2020 in “Dermatitis” This study identifies important differences in allergens found in hair products marketed for ethnic hair compared to nonethnic hair, with fragrances being the most common allergen in ethnic products.