About a year ago i started to suffer from early onset of an illness which became so painful that my mobility became limited, this caused me to loose about 80% of my muscles mass giving me another setback, with physical therapy i slowly started to move again but my muscles were gone i was determined to get back to my former self, while searching the web i came across Advanced Amino and decided to give it a try because i liked what they were saying about it, i ordered 3 bottles of the powder i am about 3/4 into the first bottle and OMG can i say amazing my muscles are slowly coming back i can see definition in my arms and my legs are feeling stronger, I am 58 years young and i am now lifting some weights hoping to gain more muscles mass. Everyone should take Advanced Amino i am hooked for life. Thank you for an amazing product.