What is the minimum order?

One ten-vial kit of any in-stock SKU. Mix compounds freely to reach a volume tier.

Do orders include a certificate of analysis?

Yes — lot-specific, with third-party HPLC purity and mass-spec identity.

Retatrutide (AP3-R)

How to Verify Retatrutide Purity Before You Buy a Kit

2026-06-01 · 5 min read

Purity claims are cheap. The only thing that survives scrutiny is a chromatogram tied to a lot number you can find on the vial in front of you.

Read the chromatogram, not the headline

A 99% claim means nothing without the HPLC trace behind it. Look at the main peak area, the baseline, and whether impurity peaks are reported rather than cropped out of the image.

Confirm identity separately from purity

HPLC tells you how much of the sample is one substance; mass spectrometry tells you which substance. A COA with only one of the two is incomplete. Every AP3-R lot we release carries both.

Red flags

Undated documents, no lot number, no laboratory name, a lab that cannot be contacted, and identical chromatograms reused across different compounds are the four failures we see most often in COAs customers forward to us for a second opinion.

Ordering, minimums, and pricing

Every SKU is priced per vial and sold in sealed ten-vial kits with a one-kit minimum. Volume tiers: 1 kit at list, 2 kits at 5% off, 3 kits at 7% off, 5 kits at 12% off, and 10 kits at 20% off. Domestic orders received by 2PM PT dispatch the same business day, and freight is free above $2,500.

All compounds are sold as chemical reagents for laboratory research use only — not for human or veterinary use.

Frequently asked

What is the minimum order?: One ten-vial kit of any in-stock SKU. Mix compounds freely to reach a volume tier.
Do orders include a certificate of analysis?: Yes — lot-specific, with third-party HPLC purity and mass-spec identity.

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