I said it many times before, dermaneedling is only supplementary. Your success largely depends on your main treatments. Don't bother with dermaneedling alone. Even if you regrow some hairs, it wont be cosmetically significant.
Also, Chen is correct when he said that the new hairs you regrow are different. These new hairs are weaker then the original ones.
Once you stop main treatments, they will all fall out in a matter of 3-4 months. This whole thing about breaking down calcification is probably a broscience. Needling doesn't have permanent benefits. Once inflammation returns, all new hairs are gone.
I dermaneedled with seti for a year straight. Decent regrowth. When I quit seti, i kept dermaneedling. But the shed started despite that and I lost everything and more.