Red light therapy is scientifically proven to promote hairgrowth by increasing strand density and thickness, and it's an additional treatment to DHT blockers like minoxidil and finasteride. Some users are skeptical about the cost and effectiveness of commercial devices, despite studies showing benefits.
Cannabis and THC may have mixed effects on hair, with some studies suggesting potential negative impacts on hairgrowth in isolated hair follicles, but these results are hard to apply to living humans. Treatments like minoxidil and finasteride are commonly used for hair loss, and the effects of cannabis might be neutral or vary based on individual factors.
2-deoxy-D-ribose, a sugar molecule, is found to be 80%-90% as effective as Minoxidil in promoting hairgrowth, showing potential for alopecia treatment. Concerns include high cost, lack of human studies, and possible side effects like diarrhea and nausea.
Peppermint oil may accelerate hairgrowth, but its effectiveness for regrowing hair or restoring a receding hairline lacks evidence from human studies or personal experiments. Some online examples exist, but they may be biased by product sales.