For one vial, PS Peptides’ NOW10OFF is the applicable offer we tested; Peptix USA’s pep requires two eligible vials to add a third free. We rechecked the codes on November 2, 2026. For an eligible three-vial cart, the Peptix free item may be more valuable than 10% off, but do not compare the headline offers without checking the same compound, vial size and final shipping total.
| Question | PS Peptides | Peptix USA |
|---|---|---|
| Offer | NOW10OFF, 10% off |
pep, buy two, get one free on eligible items |
| Smallest tested cart | One BPC-157 5mg vial received 10% off | Two BPC-157 10mg vials added a third free |
| Quantity interaction | 5% bundle price stacked with code in four-vial test | Two-vial bundle price remained in the free-vial test |
| Lab evidence | Separate panels on product pages we inspected | Batch certificates on product pages; labs vary by product |
| Shipping scope | US and listed international regions | US only; free shipping advertised at $150+ |
What did the two cart tests actually show?
At PS Peptides on September 25, 2026, NOW10OFF reduced one $49.99 BPC-157 5mg vial to $44.99. Four of those vials cost $170.96 after the bundle price and code. At Peptix on October 19, 2026, pep added a third BPC-157 10mg vial free when two were in the cart; the two paid vials totaled $77.50 before shipping. These are different strengths and different dates, so the figures cannot be used as a price-per-milligram ranking. They demonstrate how each offer applied in the tested cart.
Which offer fits your order?
Choose the cart size first. A buyer of one eligible vial has no use for a buy-two-get-one deal. A buyer of three identical qualifying vials should compare Peptix’s free-item total with PS Peptides’ code and bundle total. Peptix’s free-vial eligibility and behavior were tested on one product, not every combination; verify that the free item appears before paying. Both stores publish lab reports, but the tests and lab name vary by batch at Peptix.
See the full PS Peptides guide and Peptix USA cart-test guide for the original examples and policies. We earn a commission if you order through our links or codes. Research peptides are for laboratory use only, not human or animal use.
Frequently Asked Questions
Is a free vial always better than 10% off?
No. Its value depends on eligibility, the items you need and the final cart total. Peptix’s tested free vial required two BPC-157 10mg vials.
Can Peptix USA ship to the same countries as PS Peptides?
Peptix lists US shipping. PS Peptides lists the US plus Canada, EU, UK and Australia.