TLDR The 2% rosemary oil shampoo was the best overall.
The study assessed shampoo formulations with 0%, 2%, 4%, and 6% rosemary essential oil concentrations, focusing on quality and preference based on SNI 8860:2020 standards and sensory evaluations. The pH ranged from 6.35 to 6.55, and TPC values were between 5.426 × 10¹ and 7.319 × 10¹ CFU/ml, with no yeast or mold detected. Formulation X1 (2% rosemary oil) was most preferred for color and aroma, while X3 (6% rosemary oil) was favored for texture and comfort. Overall, formulation X1 was determined to be the best rosemary shampoo formulation.
182 citations
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December 2021 in “Cosmetics” Essential oils in cosmetics offer benefits but require careful formulation for safety and effectiveness.
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April 2025 in “Advances in Traditional Medicine” Rosemary essential oil spray can effectively increase hair density in alopecia treatment.
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October 2020 in “Natural Products and Bioprospecting” Various treatments, including FDA-approved drugs, natural products, and oral supplements, can help with hair loss, but a patient's medical history and potential allergies should be considered when choosing a treatment.
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January 2022 in “Molecules/Molecules online/Molecules annual” Natural ingredients in cosmeceuticals are beneficial for skin and hair health with few side effects.
