Re: Lack of Qualified Information Available

blackseed oil, and blackseed soap is very good to treat dandruff,

most producers of blackseed oil do not specify how strong their products are.
blackseed grown in different climates gives rise to oil of different strength (essential oil content, of which thymoquinone, the major active ingredient, is a part, composing usually about 66% of the essential oil component)

Weak blackseed oil has 1% essential oil content or less. A medium strength blackseed oil will have about 2% essential oil, and a strong blackseed oil will have over 4% essential oil.

check out The Blessed Seed for quality oil and blackseed products

using blackseed oil, or blackseed shampoo-soap, will clear dandruff when used at least once or twice per week.

it also strengthens hair follicles, so can diminish hair loss and improve hair growth if the cause of hair loss is local to the scalp itslef, but will not revive hair follicles that have ceased to function.

Where hair loss is due to systemic anaemia or low blood volume, or hormonal irregularity, internal herbs or remedies will be needed