For a few years, I've been taking Multi-Collagen Protein powder by Horbaach that has types 1, II, III, V and X. I also take New Chapter Bone Strength calcium supplements that have K1, and K2. I started these products six years ago when I was diagnosed with osteoporosis and my DEXA scans have remained stable over that time. I'm due for my next DEXA later this month.