| L-Leucine | Ningbo Sinorigin Bio-Products Co., Ltd | L-Leucine is a white crystalline powder that is a dietary amino acid with the capacity to directly stimulate muscle protein synthesis. | |
| L-Tryptophan | Ningbo Sinorigin Bio-Products Co., Ltd | L-Tryptophan is a white or light yellow particle granule. It is an essential amino acid that the body requires to synthesize proteins and specialized molecules such as the neurotransmitter serotonin. |
