YanSen BioHealth sells peptides, proteins and related products across categories such as growth, metabolic, muscle repair and skin/anti-aging, with a bacteriostatic water listing. The site states purity above 99.5% with quality control and describes itself as a source manufacturer using solid-phase, liquid-phase and continuous flow synthesis. No third-party testing or COA documentation is mentioned in the homepage text.
YanSen BioHealth sells peptides, proteins and related products across categories such as growth, metabolic, muscle repair and skin/anti-aging, with a bacteriostatic water listing. The site states purity above 99.5% with quality control and describes itself as a source manufacturer using solid-phase, liquid-phase and continuous flow synthesis. No third-party testing or COA documentation is mentioned in the homepage text.
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