Live vendor comparison

Cheapest PT-141 — 2026

Updated today

The cheapest PT-141 right now is $23.99 at Amino Club (per 10mg). We compare 18 vendors with normalized per-mg pricing so you're comparing apples to apples. Prices update continuously.

PT-141 pricing across our tracked vendors ranges $23.99 (cheapest) to $139.00 (most expensive) — a 479% spread for what should be the same compound. Median is ~$43.00. 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
#1Amino Club$23.99 / 10mg10mgBuy →
#2Ascension Peptides$25.00 / 10mg10mgBuy →
#3Puratek Peptides$28.30 / 10mg10mgBuy →
#4Petratide Science$34.95 / 10mg10mgBuy →
#5Optimum Formula$35.99 / 10mg10mgBuy →
#6Evolve Peptides$38.25 / 10mg10mgBuy →
#7SomaChems$39.99 / 10mg10mgBuy →
#8TRS Research$40.00 / 10mg10mgBuy →
#9Liv Pure Wellness$42.99 / 10mg10mgBuy →
#10Core Peptides$43.00 / 10mg10mgBuy →
#11Modern Aminos$44.00 / 10mg10mgBuy →
#12Peptira$49.00 / 10mg10mgBuy →
#13Swiss Chems$49.99 / 10mg10mgBuy →$25 off $100+·auto
#14LeoLab Rx$50.00 / 10mg10mgBuy →
#15Sports Technology Labs$54.99 / 10mg10mgBuy →
#16BioLongevity Labs$95.94 / 10mg5mg @ $47.97Buy →
#17Behemoth Labz$107.22 / 10mg10mgBuy →
#18Spartan Peptides$139.00 / 10mg10mgBuy →

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 price to a standard unit so you can see the real cheapest deal.

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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