Match the strength
Compare the same milligram amount whenever both vendors carry it.
Reader resources
Use the comparison without losing context.
Start with matched strength and price per milligram, inspect the COA path, then verify the vendor's final listing before checkout.
Four-step check
Before following a vendor link.
Normalize value
Use price per milligram when vial sizes are different.
Review the COA
Match the document's lot number to the vendor listing or vial.
Verify checkout
Confirm current price, shipping, taxes, stock, and vendor terms.
Frequently asked
How the affiliate index works.
Does S7 Sciences sell or ship these products?
No. The selected vendor handles the order, payment, shipping, support, and returns.
Does S7 Sciences earn money from the links?
Yes. S7 Sciences may receive a commission from qualifying linked purchases. The disclosure appears near the links.
Is there a visitor discount?
American Peptides currently lists code LOUIS10 for 10% off eligible orders. Aero Peptides does not currently list an S7 coupon.
Are all COAs public?
No. American Peptides publishes a lot-matched library. Aero Peptides currently says its lot PDFs are available on request.
How current are the prices?
Prices are checked every day and the catalog is updated when a verified change is found. Every comparison also displays its most recent check date. Vendor prices can change without notice, so the vendor's checkout is authoritative.
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