Live vendor comparison

Cheapest LL-37 — 2026

The cheapest LL-37 right now is $55.00 at Ascension Peptides (per 10mg). We compare 12 vendors with normalized $/10mg pricing so you're comparing apples to apples. Confirm the final price on the vendor site.

LL-37 pricing across our tracked vendors ranges $55.00 (cheapest) to $189.94 (most expensive) — a 245% spread for what should be the same compound. Median is ~$170.00. 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.

RankVendorPriceSize
#1Ascension Peptides$55.00 / 10mg10mgBuy →
#2SomaChems$63.99 / 10mgBuy →
#3Peptira$78.00 / 10mg5mg @ $39.00Buy →
#4Pantheon Peptides$127.01 / 10mg5mg @ $63.50Buy →
#5Modern Aminos$128.00 / 10mg5mg @ $64.00Buy →
#6CertaPeptides$157.88 / 10mg5mg @ $78.94Buy →
#7Evolve Peptides$170.00 / 10mg2mg @ $34.00Buy →
#8Biotech Peptides$172.00 / 10mg5mg @ $86.00Buy →
#9Polar Peptides$172.78 / 10mg5mg @ $86.39Buy →
#10Core Peptides$178.00 / 10mg5mg @ $89.00Buy →
#11LeoLab Rx$180.00 / 10mg5mg @ $90.00Buy →
#12BioLongevity Labs$189.94 / 10mg5mg @ $94.97Buy →

Why this page exists

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.

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