I've had a lot of luck with mixing organic castor oil and virgin coconut oil 50/50 and applying it to my body and scalp every night. Plus, when I started taking Iodine and borax, the hair started growing back on my legs. At age 60, I thought I was done with hairy legs, but guess not! LOL
The VCO is to thin out the castor oil, plus the two together help kill off any skin parasites that may be causing your thinning. It may cause some sores in your head, if there are parasites. Make sure you wash it out every morning. I use Dawn dishwashing liquid to get it out, then rinse with either 1 tbsp. Apple cider vinegar to 1 ltr of water, or 1 tbsp. borax to 1 ltr. of water.
I can't believe how much of my hair has grown back.