99 listings · covers 50 peptides across 12 categories
Peptide Giants is a research peptide vendor - also called a supplier or source - indexed on PeptideScouter. Prices below are refreshed daily.
Peptide Giants sells from its own storefront at peptidegiants.com and lists a mailing address in Tampa, Florida. The catalog spans the common research categories, including experimental compounds, from incretin agonists such as retatrutide and tirzepatide to repair peptides like BPC-157 and TB-500, along with blends, ten-vial kits and reconstitution water. The vendor states every batch is tested by an independent third-party lab, with identity checked by mass spectrometry and purity by HPLC. Its on-site lab-reports page lists each certificate by batch number, purity result and test date, and can be read without an account. The reports posted there are purity tests. Unopened, sealed products can be returned within 30 days of delivery, with return shipping paid by the buyer unless the item is defective or incorrect. Damaged or defective items reported with photos within 48 hours are replaced or refunded at no cost. Shipping is free on orders over $200.
Lab testing
2.8 of 8
As of Nov 6, 2026, Peptide Giants' newest COAs for retatrutide, tirzepatide, tesamorelin, MOTS-C and BPC-157 report 2.8 of 8 tests on average, run by Vanguard Laboratory.
Is Peptide Giants a legitimate research peptide vendor?
PeptideScouter does not rate Peptide Giants or any other vendor, so here are the facts we can see. Its domain was registered on Nov 25, 2025. Its Trustpilot score is 4.7/5 from 62 reviews. As of Nov 6, 2026, Peptide Giants' newest COAs for retatrutide, tirzepatide, tesamorelin, MOTS-C and BPC-157 report 2.8 of 8 tests on average, run by Vanguard Laboratory. We track 50 of its peptides across 99 listings and refresh prices daily. We do not test products or confirm that a vendor's COAs are genuine. Peptide Giants pays us a commission on orders from our links or code, and no vendor can pay for its listing, its place in our price tables or its lab testing count.
Where is Peptide Giants based?
Peptide Giants is based in the US according to their published vendor information.
Does Peptide Giants ship internationally?
Peptide Giants ships within the United States only. International shipping is not currently offered.
What payment methods does Peptide Giants accept?
Peptide Giants accepts Credit Card, Bank Transfer, Zelle for payment.
How much does Peptide Giants charge for shipping?
Peptide Giants charges $16.00 for shipping with delivery in 3–5 business days.
Does Peptide Giants test their peptides?
As of Nov 6, 2026, Peptide Giants' newest COAs for retatrutide, tirzepatide, tesamorelin, MOTS-C and BPC-157 report 2.8 of 8 tests on average, run by Vanguard Laboratory. On all 5: purity and net content. On 4 of 5: identity. On none: conformity, endotoxin, sterility or microbial, heavy metals and fentanyl. We count the tests printed on each COA and link the COAs on this page. We do not run tests ourselves, and the count says nothing about the results.
How many peptides does Peptide Giants sell?
Peptide Giants currently lists 50 research peptides across 12 categories on PeptideScouter, with 99 tracked listings including size and kit variants. Pricing is normalized to USD per milligram and refreshed daily.
Does Peptide Giants have a coupon code?
Yes. Peptide Giants issues PeptideScouter the code SCOUTER, worth 10% off, entered in the discount or promo code field at checkout. It applies across their catalog rather than to one peptide, and it is an affiliate code: Peptide Giants pays PeptideScouter a commission on orders that use it, at no additional cost to you. The Peptide Giants coupon code page shows what the discount does to every peptide they stock, normalized to USD per milligram.
