OK...there are expensive products out there that are for hair growth. Many of them work but you have to continue to use them in order for them to keep working and that can add up to a lot of money.
This is my
unprofessional suggestion since I don't have a lot of experience with these. There are several essential oils that claim to work for thickening and regrowing hair. I am including a link to some of those. Also castor oil is supposed to work very well also. You can use castor oil as a carrier for the essential oils as well. You just rub it into your scalp and let it sit for up to an hour and then shampoo it out.
Rosemary oil seems to be highly recommended...
"Can rosemary oil treat hair loss?
The idea that rosemary oil encourages hair growth may come from the rosemary’s basic health benefits. The plant in essential oil form is said to:
have anti-inflammatory properties
promote nerve growth
improve circulation
Like peppermint essential oil (also used to promote hair growth), rosemary essential oil strengthens circulation. As a result, it could prevent hair follicles from being starved of blood supply, dying off, and leading to hair loss.
Beyond stimulating hair growth, rosemary essential oil is used to prevent premature graying and dandruff. It may also help dry or itchy scalp."
8 Essential Oils That Will Regrow Thinning Hair — and How to Use Them:https://www.womansworld.com/gallery/agi ... oss-173439**Always do a patch test on your skin first to be sure you are not sensitive or allergic to the oils. Do not use essential oils without a carrier oil.