December 2023 in “Gugje bogeon mi-yong haghoeji” Scalp scaling with aroma oil improves scalp condition and user satisfaction.
February 2023 in “Han'gug miyong haghoeji/Journal of the Korean society of cosmetology” Aroma essential oils in shampoo may help prevent hair loss and promote hair growth.
December 2012 in “한국피부미용향장학회지” Different aroma oils are suited for dry, oily, or sensitive scalps based on their specific chemical compositions.