Mixture of common amino acids, polarised light micrograph. This particular set of amino acids, when mixed in different ratios produces really beautiful patterns resembling tropical plants. These amino acids are commonly used as health supplements for athletic performance, building lean muscle mass, and improving physical functioning in elderly people. Beta-alanine is a non-essential amino acid that is naturally synthesized by the body. The body uses it to produce carnosine. Magnification: x70 when printed at 10cm wide.