PEPTIDE CORPUS

US domestic vendor

Paramount Peptides

Southern California peptide supplier with 99%+ HPLC-verified purity and refund guarantee.

Last updated

Scored 6.3 6.3 of 10 overall, across 8 dimensions how scores are derived

Score breakdown

Dimension scores are editorial, carried from the operator's earlier directory — they are not user reviews. Each label links to what the dimension measures.

About Paramount Peptides

Paramount Peptides is an American-owned research peptide supplier based in Southern California offering 99%+ purity compounds verified via HPLC and mass spectrometry. The company provides a refund guarantee if independent HPLC testing returns negative results. Products include BPC-157, TB-500, MOTS-c, GHK-Cu, tesamorelin/ipamorelin blends, oral tablet formulations, and reconstitution supplies. Peptides are labeled strictly for laboratory research use only.

Written for the operator's previous directory and reproduced unchanged (markup and emoji stripped); the rest of this site does not share its voice. Ported observed .

From the storefront 8

Ranked by the store's own popularity sort, observed . Accessories — diluent water, shipping protection and the like — are excluded. Prices are the storefront's own; the storefront is authoritative.

Catalogue, as their API returns it 8

observed via their public storefront API

Every row is as the feed returned it, in the store's own currency. Where a regular price sits above the current price both figures show; the storefront is authoritative.

Strengths and weaknesses

Where it does well

  • 99%+ purity with HPLC and MS verification
  • Refund guarantee if independent testing fails
  • Wide product range including blends and oral tablets
  • American-owned and operated

Where it falls short

  • Website only came online mid-2024
  • Credit card only payment
  • Limited online reviews
  • In-house manufacturing claims not confirmed on current site

Carried verbatim from the source directory's editorial review, observed .

Shipping

Destinations
  • United States
Countries Served
United States observed
Domestic Shipping
Varies observed
Estimated Delivery
Domestic: 3-5 business days observed
Free shipping
No
Reship guarantee
Not on file
Refund policy
Not on file

Payments

  • credit-card

Coupons

No current code on file. Codes are published only with the code, the discount, a source and the date we saw it, and expired codes are removed at build — the coupon policy. 0 are on file site-wide today.

Certificates of analysis

Third-party tested
Yes
Publicly accessible
Yes
Test types
  • HPLC
  • Mass Spectrometry
Source's COA tier
third-party

Third-party testing through Janoshik. In-house synthesis, purification, and quality testing. 99%+ purity. observed

A COA describes one batch's purity. It is a document about a vial, not evidence about an effect, and it never grades a claim on this site — the grading rubric names what qualifies.

Peptides listed 5

Linked names have a record here; the others we hold nothing on yet. A vendor listing a compound says nothing about the evidence for it.

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