The Neocell powder is the most versatile and economical I have found. You can also take collagen as a capsule. My daughter and I take it for gut health. Use it for 3-6 months minimum. Other options are bone broth powder or L-glutamine powder. Bone broth comes in flavors, or buy plain and add it to sauces. I also make bone broth/soup, or purchase bone broth. Add the Neocell powder to smoothies or coffee. No taste. Almost like adding a creamer. Great for skin, hair, nails.