Ask for a portfolio of past formulas (even anonymized), references from brands they have worked with, and proof that their manufacturing partners hold current cGMP certification and third-party tested COAs. Check whether they carry professional liability insurance. AJ Cosmo Labs requires suppliers to go through a vetting process before listing on the marketplace, giving small brands a curated starting point rather than an unfiltered cold-search experience.
Read the full guide on how to find a supplement formulator for small brand →