Amino Foundry — 4 lots over 6 months, consistently good

Tracking lots 240901 through 250403 from Amino Foundry. Third-party COAs on every order with matching lot numbers (not generic certificates). Mass spec data included for the major SKUs.

Purity has held 98.5%+ across the lots I've ordered. Shipping has been 3-5 days. Customer service responded to a COA question within 24 hours.

Not perfect — one lot's HPLC chromatogram had two minor peaks that weren't fully explained on the cert, but the totals matched the reported purity.