The cheapest KLOW Protocol right now is $6.39 at Alpha Peptides (per 10mg). We compare 18 vendors with normalized $/10mg pricing so you're comparing apples to apples. Confirm the final price on the vendor site.
KLOW Protocol pricing across our tracked vendors ranges $6.39 (cheapest) to $25.00 (most expensive) — a 291% spread for what should be the same compound. Median is ~$14.62. That's a huge spread, which usually means the cheapest vendor is either passing on bulk-buying advantage or cutting corners on QC. Always cross-check the cheapest vendor's COA before ordering. Cheapest vendor changes ~weekly based on restocks and discount cycling.
Peptide prices vary wildly between vendors — sometimes by 3x or more for the exact same compound at the same purity. Vendors use different quantity sizes to obscure comparisons. PeptidePrices normalizes every mg-denominated listing to a 10mg equivalent so you can compare unlike vial sizes on the same basis.
How we rank: Only in-stock listings are shown. Prices are deduplicated per vendor (cheapest variant only). Non-normalized listings (missing quantity data) are excluded. See our full methodology.
PeptidePrices provides research information, price comparisons, vendor analysis, and organizational tools. Before entering the site, you must confirm that you are at least 21 years old and understand you are responsible for complying with applicable laws in your jurisdiction.
