Researching the effects of scalp trauma on hair growth, with some users suggesting experimenting with a soldering iron or derma pen, and others bringing up studies that suggest this may be an effective treatment.
Vitamin C mixed with shampoo stopped shedding and promoted hair regrowth after 1.5 years. Both the person and their wife experienced significant hair loss reduction with this method.
Tazarotene shows potential as a standalone treatment for hair regrowth by stimulating new hair follicle formation and promoting angiogenesis, similar to microneedling effects. It can be used topically without minoxidil, but users should start with a low concentration to avoid irritation.
PP405 is a new hair loss treatment in phase 2 trials that may promote hair growth by increasing lactate production and activating hair follicle stem cells. It could potentially replace hormone-disrupting treatments like Minoxidil and finasteride.
The conversation is about using a Dr. Pen for microneedling on a widow's peak, with advice to use a depth of 1.25mm and hold it in place for 10 seconds. The user is also using minoxidil.