My experience and this is only what we have used. If not on here, just means I haven't tried it yet.
1. Meletonin Implants
2. Grow & Shine (melotonin liquid)
3. Epic
4. Shag
I am using Purinas Champion Drive as a supplement for digestion and vit and minerals at the moment. I haven't started any of the above cause we are still out over 90 days. Just with Champion Drive, I am seeing incredible hair growth. All this has been done with plenty of rnsing and brushing also. If you don't put in the time, none of the above work. Good luck.