Is Calpsor prescription? If not where did you buy it? Also how often do you apply it?I changed up regimen a couple months ago. I stopped taking finasteride, and I started microneedling and applying Calpsor. I was already making progress, but now I'm getting more new hairs along my juvenile hairline where I've been slick bald for about six years. I'm inclined to believe Calpsor is at least partially responsible, as the new hairs are concentrated where I've been applying it liberally.