Commonly listed additions include hyaluronic acid, glucosamine, chondroitin, biotin, vitamin C, and various minerals or other joint‑supporting compounds.
Descriptions commonly call out glycine, proline, hydroxyproline, and arginine; some products also advertise a broader profile of up to 18 naturally occurring amino acids.
Product descriptions commonly promote support for joint and skin health, gut and digestive health, muscle recovery, immune support, and weight or inflammation management.
They’re offered both flavored (for example, chicken or chocolate) and unflavored, and typically come in powdered tubs or instant single‑serve packets.