What document quality protocols would you want before buying DNOUHN C15:0 from a smaller brand?

So looking at a dnouhn Pentadecanoic Acid label- its simple: 300 mg of C15:0 per capsule, 60 capsules, and a veggie capsule. The images on the listing
display non-GMO, additive-free, GMP, USA made, and third-party-lab-tested claims.
Those indicators are easy to understand, but for a less established brand such as DNOUHN, I would rather see a downloadable lot-specific COA
than rely on badges. Ideally, it would cover pentadecanoic-acid identity and amount, purity, heavy metals, microbes, residual solvents, along with test date, lot number, and laboratory details.
So, which documents would you consider essential before trusting dnouhn C15:0? If a brand offered only a generic COA instead of one matching the bottle's lot, would that stop you from buying that brand?