April 2023 in “Journal of Investigative Dermatology”
Platelet-rich plasma treatment is generally safe and effective for hair loss, acne scars, skin discoloration, and facial rejuvenation, but deeper injections are better and multiple treatments can increase risk of side effects.
Red light therapy with dual wavelengths (650nm and 850nm) can stimulate hair regrowth without DHT blockers. Consistent use of a panel with these wavelengths has shown positive results in hair regrowth.
Microneedling with needle lengths of 1.5mm to 2.5mm to stimulate hair follicle stem cells for potential hair growth. Using needles longer than 2.5mm is not recommended due to risk of puncturing veins in the scalp. A dermastamp is suggested over a roller.
The user reported progress with hair regrowth using a topical solution combining finasteride and minoxidil, but experienced scalp irritation which improved after adjusting the treatment. They are considering microneedling but are concerned about the risk of scarring.
A 26-year-old male shared progress pictures after 4 months of treating hair loss with finasteride (1.25 mg on Mondays, Wednesdays, and Fridays), topical minoxidil twice daily, ketoconazole shampoo twice weekly, and weekly microneedling at 1.5 mm. He is seeing hair growth improvement, especially in the front, and is considering hair grafts for the crown area if necessary for more density.
Microneedling should target depths of 0.5mm to 1.5mm for hair loss, with weekly sessions at 1mm recommended. Combining microneedling with Minoxidil is common for improved results.