G.S. Cosmeceutical USA, Inc. is Synergy CHC's #1 rival. G.S. Cosmeceutical USA, Inc. was founded in 1998 in Livermore, California. Like Synergy CHC, G.S. Cosmeceutical USA, Inc. also operates in the Professional Services space. G.S. Cosmeceutical USA, Inc. generates $31.3M less revenue than Synergy CHC.