How do "hair vitamins" work ?

Question

do they really help in growth of hair ? Can it make your hair thicker ? I used to have thicker hair during childhood and teen years , but at 23, i have mostly thin hair.

Answer 1

Hair thickness is mostly genetic, and what you have in your youth is not necessarily what you have as an adult, just by natural changes. I know of no vitamins that will make your hair thicker, but you might want to get a thyroid check, as changes in hair thickness can be a sign of deficiency of thyroid hormones, an easily treated disorder that has a lot of other symptoms, such as fatigue and sensitivity to cold.

Nothing you put on the hair shaft will actually make it thicker, but some conditioners make it look thicker -- you might want to try one of those.