Light fraction patchouli oil at 1.5% effectively treats dandruff and promotes hair growth.
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June 2023 in “Journal of Patchouli and Essential Oil Products” Patchouli essential oil may help reduce eczema symptoms in infants and toddlers.
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January 1966 in “Economic botany” Plant-based ingredients in hair care are being replaced by synthetic alternatives.
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December 2021 in “Cosmetics” Essential oils in cosmetics offer benefits but require careful formulation for safety and effectiveness.
November 2025 in “Natural Product Communications” Rosemary essential oil can improve mood, sleep, and cognitive function but may cause allergies, so use it carefully.