Tannic Labs
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Free shipping on orders $100+Free research water on orders over $7510% off your first order with code TANNICLAB10OFF
Research materials · United States

Peptides you can
actually verify.

Every lot ships with its own certificate of analysis. RP-HPLC purity, mass-spec confirmation, and a lot number you can match to the vial in your hand — before you order, not after.

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99%+HPLC PURITY
15CATALOGUE ITEMS
1 dayDISPATCH WINDOW
COA with every lotThird-party RP-HPLC and mass spectrometry.
Sealed, single-lot vialsLyophilised under vacuum, never repackaged.
Fast, discreet shippingPlain packaging, tracked, dispatched in 1 day.
Real supportDocumentation questions answered in one business day.
Most popular

What researchers order most

Bacteriostatic water, Tesamorelin and GLP-RT — the three that move fastest.

View the full catalogue
Quality control

What every lot goes through

Four checks, run at an outside laboratory, before a lot is allowed onto the shelf. We publish the number that comes back — not a target.

Identity

Molecular weight confirmed by electrospray mass spectrometry against the expected sequence. This is what rules out a substituted or mislabelled compound.

Purity

Reverse-phase HPLC, area percent at 214 nm. The measured figure for your specific lot is printed on its certificate.

Appearance & fill

Visual inspection against the expected lyophilisate, and fill weight verified gravimetrically for every lot.

Release

A lot that misses the release threshold does not ship. It is not discounted, and it is not blended into another lot.

Full methodology on the quality & testing page.

Why buy here

What you get with every order

Certificate of analysisAttached to your dispatch email, matched to the lot number on your vial.
Same-day dispatchOrders placed before 2pm ET ship the same business day.
Plain packagingNo branding, no reference to contents, tracked end to end.
Secure checkoutCard details are handled by the payment gateway, never stored on this site.
One business day repliesDocumentation and order questions answered by a person.
Free research water over $75A 10 mL vial of bacteriostatic water added to qualifying orders.

New lots and restocks

One email when a compound is restocked or a new lot clears testing. Nothing else.

Research customers only. Unsubscribe any time.

Questions before you order?

Send us the compound and lot you are interested in and we will email the certificate of analysis straight back.

Request a COA

For laboratory and research use only. Not for human or veterinary use. Not a drug, food, or cosmetic. Not intended to diagnose, treat, cure, or prevent any disease.