THE ULTIMATE GUIDE TO ROSEMARY HAIR OIL FOR HAIR GROWTH

"Even so, When you have fine hair, you would probably need to use oils once every week at the most, and never always on the hair by itself—but around the scalp, to encourage nutritious hair growth and thicker hair." Hurtado suggests that on typical, "it is best to use hair oils not less than once or twice per week to nourish and soften the hair."