I have prepared various hair oils by myself and they have helped on curing various issues like chronic dandruff. The oil making formula comes from ayurveda. You can make hair oil at home using any base oil like coconut, sesame (til tail) etc. Below herbs, things, activities help a lot for hair gain.
- Shami plant leaves for hair gain as mentioned in Atharveda.
- Banyan leaves (+ other parts too) based oil.
- Jaborandi oil e.g. wheezal jaborandi oil.
- Rasaut with coconut oil. Its a rare information and only patanjali uses this ingredient in their hair oil. But their oil has low concentration of it.
- Shirshasan yoga (inverted pose i.e. standing on head legs upside). Its called king of all asanas and also great for brain. Ensures lots of blood flow to head. Doing this has immense benefits but check if this is ok to do. No high BP issues, neck, head etc injury are there.
- You can also use derma roller on head skin.
- I have some more methods which are rare and found them working but i hesitate how they will be taken into consideration by any reader. Like take tooth brush and put oil on head then stroke or press lightly on head skin with the bristles. This is to be taken experimental in nature and done very softly. Just like we break the trunk of tree and it grows new branches body also responds and builds new cells when we apply some hacks. This last point is done with own consent. Don't hurt or damage skin!. Don't want to write anything more about this method. This should be ignored completely if it feels like pseudoscience or stupid.
Most important thing is patience. Most critical things either bad or good are always slow in process and take long time. Body will trigger some genes, then new cellular development will start. It takes months to show noticeable results or may be more than year to show desired results.
Full answer is here :
https://www.quora.com/Do-Vedas-have-remedies-for-hair-loss-If-yes-can-you-tell-me-I-am-suffering-from-hair-loss-and-I-am-an-18-year-old-male-I-almost-lost-my-temples-hair-What-can-be-done-to-regrow-them/answer/Bindesh-Kumar-Singh