I’ve been dealing with thinning at my crown for over a decade. I always assumed it was hormones or just “getting older,” but when I watched the video and learned about sebaceous gland deficiency, it was like everything clicked. I ordered the ampoule the same night, and within 2 weeks, the constant tightness and flaking were gone. My scalp feels calm for the first time in years — and now, I’m even seeing baby hairs filling in. I wish I found this sooner.