Everyone wants to enjoy thicker, fuller hair. But, for many people, it is essential. Thinning hair is an ongoing battle for many men and women. It can occur for a variety of reasons. Sometimes, genetics play a role – if you have a family history of thinning hair, it is more likely to happen to you. Other times, it is due to inflammation of the scalp or poor nutrition intake. No matter what causes it, there are ways to treat it in some people. Rosemary oil for thinning hair may be one of the options you have not heard of before. Should you choose it?