I have purchased Probotanic rosemary oil. How many drops can I rub into my hair i.e., scalp? There are no instructions on use. Kind regards,
Dear Sir,
Rosemary oil should be diluted in olive oil (apply 20 drops of rosemary oil in 100ml olive oil). Rub a small quantity of the oil mixture into the scalp and leave it for an hour and then wash hair.
Best regards