Dropshipping is cheap to start but hard to do well in this category, because you cannot check, test or hold the batch before it ships. Buyers who check lab reports tend to notice.
Dropshipping
Selling products that a supplier ships directly to your buyer, without you holding stock.
See it running on your own catalog
Purity does the work these terms describe: batches held until their lab report is in, payments matched to orders, and wording checked before it sends.