As you age, you lose muscle. Sad but true. Our Silver-Pro Blend is designed for athletes 55 years of age and older. It is formulated with hydroxy-methyl-butyrate and faster absorbing proteins that will help the Master Athlete to keep grinding. Combining ourNite-Pro Blend,which you take before going to bed, withSilver-Pro after your workout and you will be doing everything you can to beat the clock. Getting older doesn't have to mean getting weaker!