community Why are we using 1.5mm for microneedling? Evidence says we don't need to.
Shorter microneedle lengths, like 0.5mm, may be more effective and safer for hair regrowth than longer ones, such as 1.5mm, which can cause more pain and risk. Users report success with various regimens, including minoxidil, finasteride, and other topicals, alongside microneedling.