Pramāsana Protective Scalp Concentrate

not a review but perhaps helpful - here is a description from the source: What it is: A concentrate that helps to balance sebum levels to maintain the purity of the scalp at the root of the hair, penetrating its surfaces layers to nourish and help preserve its natural barrier, while helping to protect the scalp from aggressors such as pollution and free radicals. What it does: It's formulated with the highest level of Aveda's exclusive blend of ingredients that help balance, protect and preserve, including seaweed extract, which helps control and balance sebum levels, lactobacillus patented ferment, which helps preserve the scalp's natural protective barrier and tamanu oil, a known antioxidant that helps protect the scalp from aggressors like pollution and other free radicals. Your scalp is left nourished, soothed and comfortable, and a clean scalp foundation is maintained for beautiful hair. It's scented with notes of grapefruit, neroli, cypress and other pure flower and plant essences. How to use: Part clean, damp hair from front to back hairline. Apply to part with the dropper touching the clean scalp. Repeat in five or more sections to cover your entire scalp. Massage in. Do not rinse. It's for use only on days when you've cleansed your scalp.