The finer your hair, the more hair you have per square inch of scalp. And at the base of each hair shaft are sebaceous glands, which produce sebum, the fatty “oil” in oily hair.
The more hair, the more oil glands, and the more oil glands, the more oil. Those with fine hair have as many as 140,000 oil glands on their scalps.
Redheads, who average 80,000 to 90,000 hairs per head, rarely have oily hair. Blondes with silky, baby fine hair tend to have the worst problems with oiliness.
The texture of your hair does make a difference. Oil wicks onto fine, straight hair very easily, but wiry hair doesn’t seem oily. It has a lot to do with perception.Read More