August 2025 in “Revista Contemporânea” This study reviewed literature on the combined use of microneedling and essential oils for treating male androgenetic alopecia, finding that this approach potentially enhances scalp vascularization and hair growth, although controlled clinical trials are needed to confirm these effects and standardize treatment protocols.
June 2026 in “RCMOS - Revista Científica Multidisciplinar O Saber” This descriptive literature review suggests that rosemary essential oil may stimulate hair growth in androgenetic alopecia with effects similar to 2% minoxidil, yet highlights the need for more robust clinical trials to confirm these findings and assess complementary methods like scalp massage and high-frequency treatment.
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February 2024 in “Peer Review” This study reviewed the use of rosemary essential oil combined with photobiomodulation for treating androgenetic alopecia, highlighting the potential benefits of rosemary's antioxidant and vasodilatory properties alongside enhanced cellular processes from photobiomodulation.
May 2026 in “Revista Ensaios Pioneiros” This study developed and evaluated topical formulations containing 5% minoxidil and 1% rosemary essential oil for androgenetic alopecia treatment, finding them physically and chemically suitable, but noted that further stability tests and clinical trials are needed to confirm therapeutic efficacy and safety.
This review discusses the potential effectiveness of certain essential oils in promoting hair growth for alopecia and reports no new clinical trials; the authors suggest these oils may increase hair thickness and volume.