February 2024 in “Journal of applied pharmaceutical research” This study formulated herbal hair oils using extracts such as Coconut and Amla, observing significant improvements in hair growth promotion, antioxidant, and antimicrobial properties in animal models, suggesting potential natural remedies for hair care with further research needed for human application.
February 2026 in “Cureus” This review highlights that castor oil has potential dermatological uses, including enhancing hair luster, reducing hyperpigmentation, and improving skin hydration and elasticity, although rare side effects like contact dermatitis occur, necessitating further research to confirm its effectiveness in these applications.
May 2022 in “Research Square (Research Square)” This study found that the newly developed transdermal oil body microgel emulsion (OBEME) improved wound healing in mice by enhancing skin permeability, reducing inflammation, and promoting new blood vessel formation and re-epithelialization.
23 citations
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January 2001 in “International journal of toxicology” This review discusses the cosmetic use and safety of Hypericum Perforatum Extract and Oil, finding that current data are insufficient to support their safety in formulations due to a lack of comprehensive testing.
19 citations
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July 1993 in “Journal of Applied Toxicology” This study found that various petroleum distillates caused significant skin changes in mice, with severity varying based on the product and penetration pathway, potentially leading to skin tumors through non-genotoxic mechanisms in longer-term exposure.