Clear answers. Better comparisons.
How prices are read, compared and checked.
How is the price per mg worked out?
We divide the listing’s price by the total amount it contains: vials × mg per vial. A 10-vial kit at $300 with 5 mg per vial works out at $300 ÷ 50 mg = $6.00 per mg. Shipping, tax and duties are not included.
How are blends compared?
A blend is compared only with the same blend in the same mix — for example BPC-157 10 mg + TB-500 10 mg — and priced per vial. Listings that do not state how much of each ingredient the vial holds are shown apart and never ranked.
Are kits and multi-vial packs compared?
Yes, on the same basis as a single vial: per mg for a single compound, per vial for a blend. The table shows both the pack’s price and the unit price.
Are shipping and taxes included?
No. Prices are the product prices the vendor shows; shipping, tax, duties and any checkout fees are added by the vendor. Where we have no evidence that a vendor ships to your destination, the listing says so.
How do USD and CAD prices compare?
Each vendor’s own currency is kept. To compare them, Canadian-dollar prices are converted at the European Central Bank’s reference rate of the date shown on the comparison. Your bank or the vendor may use a different rate.
Where do the prices come from?
From each vendor’s public product listings, read once a day starting at 06:10 UTC. Our reader identifies itself and respects each site’s robots.txt rules. An automatic check holds a day’s prices back if something looks wrong, and the site keeps showing the last checked prices.
Why is a price out of date or missing?
Prices can change after our daily read. A price not re-checked for 48 hours is marked as stale. A vendor whose pages we cannot read reliably is not listed. If a price looks wrong, tell us at hello@pepspotter.com.
Does a certificate of analysis (COA) mean a product is safe?
No. A COA is a document a vendor publishes about a batch. PepSpotter does not test products or verify lab reports, and nothing on the site is a statement about quality or safety.
Does PepSpotter earn money from vendors?
No. There are no affiliate links, no commissions and no paid placement. Results are sorted by price.
Is this medical advice?
No. PepSpotter compares the prices of products sold for research use. Nothing on the site is medical advice or a recommendation to buy or use any product.
How do I get a vendor added or a listing corrected?
Email hello@pepspotter.com with the store’s website or a link to the listing.