At minimum, your manufacturer should run under FDA 21 CFR Part 111 cGMP and provide a Certificate of Analysis with heavy-metal and microbial testing per lot. Depending on your market, look for NSF, kosher, halal, non-GMO, or grass-fed sourcing. Manufacturers listed on AJ Cosmo Labs publish their certifications, so you can match a partner to the exact claims your label will make.
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