5.0
Very fast service, with the reviewer reporting quick dispatch and a smooth experience from order through to delivery.
Jim Heaton
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Research Use Only. Products listed are not for human or animal consumption. Statements have not been evaluated by the FDA.View full disclaimers →
Last checked by Adam Dan
Peptide Giants is a U.S. research peptide supplier selling since 2025. At our last check it was below the market median price on 27 of the 30 compounds we compared.
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Before you order
Size 10 mg
Size
In stock
$2.97/mg · seen 7w ago
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Size 5 mg
Size
In stock
$7.20/mg · seen 7w ago
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Size 10 mg
Size
In stock
$3.60/mg · seen 7w ago
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Size 100 mg
Size
In stock
$0.18/mg · seen 7w ago
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Size 5 mg
Size
In stock
$8.10/mg · seen 7w ago
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Size 5 mg
Size
In stock
$5.40/mg · seen 7w ago
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Size 5 mg
Size
In stock
$3.96/mg · seen 7w ago
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Size 50 mg
Size
In stock
$0.45/mg · seen 7w ago
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Size 10 mg
Size
In stock
$3.78/mg · seen 7w ago
View COATested by Third-party laboratory
Selling since 2025, Peptide Giants offers research peptides from the U.S. The range we follow is 30 compounds in 68 listings, all available at the September check. Most of its listings are for Retatrutide, Tirzepatide, NAD+, BPC-157 and MOTS-c. Peptide Giants describes its shipping as same-day processing; 2–4 business days shipping; 3–5 business days total; U.S. only. Retatrutide comes in six sizes, from 5 mg up to 60 mg. You can pay with credit cards, Plaid, Cash App and Venmo. The certificate links all lead to a single page on Peptide Giants' site; the report for your lot should be listed there. Peptide Giants says testing is done by a third-party lab. Buyers who want more than one vial can pick from 6 kit listings. We don't sell anything ourselves. Checkout happens on Peptide Giants' site, and its compounds are sold for lab research only.
Price is the main reason to look at Peptide Giants. Of the 30 compounds we can line up against other sellers, 27 were cheaper than the typical price. Nobody we track beat it on AHK-Cu (12 sellers). Payment is flexible: credit cards, Plaid, Cash App and Venmo. On speed, it promises same-day processing. Entering adamdan saves 10%.
Peptide Giants sits near the low end of the market. Its strongest prices were on Epitalon (55% below the typical price), NAD+ (52% below the typical price) and Tirzepatide (48% below the typical price). Shop elsewhere for Bacteriostatic Water, Selank and Cagrilintide, where it ranked 42 of 53, 47 of 66 and 21 of 36. Compare each compound with 84 other suppliers before you order.
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