Cognitive Enhancement & NeuroprotectionIndependent · No affiliate links · No paid placement

P21 (P021) price comparison

P21 (P021) is in stock at 9 shops, all with third-party lab tests on file. Per-milligram prices run from $4.17 to $24.00 across 10 comparable offers (median $11.45/mg), in vials from 5mg to 12mg. Last read 24 Sep 2026.

Shops in stock
9
of 14 known to sell P21 (P021)
Comparable offers
10
of 13 listings identified
Lowest $/mg
$4.17
on a 12mg vial
Median $/mg
$11.45
per shop

14 shops are known to sell P21 (P021)11 with a live listing, 3 evidenced by a lab test in the last year. 13 listings are identified, of which 10 can be compared per milligram.

  • 1 sold only as a multi-vial kit
  • 2 out of stock
  • 3 known from a lab test, no live listing

What would P21 (P021) cost you?

your own numbers — Peptigrity does not suggest dosesOpen in the cost calculator →
mcg
weeks

Uses labelled mg. Excludes shipping, taxes and customs. Vials are rounded up — you can't buy 0.7 of a vial.

Enter a dose and a duration to see the cost.

All offers

10 comparable · 2 out of stock · last read 24 Sep 06:13 UTC
P21 (P021) — every tracked offer, price per milligram
ShopSizePrice$/mgChecked
Peptuvia
Lab testsRegion not statedCrypto, PayPal, Zelle, Cash App, card, Venmo, Wise, otherClaimedShop-stated · not counted
10mg$11.00$1.102h ago
evolvebiopep.com
Lab testsRegion not stated
listed as P21 12mg
12mg$49.99$4.175h ago
bulkpeptidesupply
Lab testsRegion not stated
10mg$75.00$7.505h ago
Rescue Research USA Peptides
Lab testsRegion not stated
listed as P21 10mg
10mg$89.99$9.004h ago
Peptuvia
Lab testsRegion not statedCrypto, PayPal, Zelle, Cash App, card, Venmo, Wise, otherClaimedShop-stated · not counted
5mg$47.90$9.582h ago
protidehealth.com
Lab testsRegion not stated
listed as P21 10mg
10mg$110.00$11.004h ago
verified peptides
Lab testsRegion not stated
listed as P21 Peptide 10MG (P021)
10mg$119.00$11.905h ago
libertypeptides.com
Lab testsRegion not stated
listed as P21 (5mg)
5mg$99.00$19.805h ago
core peptides
Lab testsRegion not stated
listed as P21 – 5MG
5mg$116.00$23.205h ago
americanpeptides.us
Lab testsRegion not stated
listed as P-21
5mg$120.00$24.003h ago
tydes.is
Lab testsRegion not statedOut of stock
10mg$74.99$7.505h ago
ruo.bio
Lab testsRegion not statedOut of stock
listed as P-21 5mg
5mg$38.00$7.604h ago

Out-of-stock rows are excluded from the lowest, the median and the shop count. Prices exclude shipping, taxes and customs. Ships-from and payment methods are stated by the shop, not verified. A row not read for 3+ days is marked. Outbound links carry no affiliate or tracking parameters.

Price moves

P21 (P021) · last 14 days · changes of 5% or more, restocks and sell-outs

Price history

lowest and median in-stock $/mg, read daily
Lowest $/mg
$4.17
Median
$11.45
24 Sep 2026 · 10 in stock
$0$10$2028 Jul16 Aug5 Sep24 Sep
Lowest in-stock $/mgMedianHover for the value on any day. Out-of-stock offers are excluded — an unbuyable price is not a market price.

Method notes

What’s not included

  • Shipping, taxes and customs charges
  • Coupon codes and bulk discount tiers
  • Multi-vial kits and email-only pricing
  • Any vendor that requires an account to show a price

How we stay neutral

  • No shop pays for placement or position
  • Claimed status and promotions never affect sort order or the lowest $/mg
  • Outbound links carry no affiliate tracking
  • Prices are read from public storefronts by the same script for every shop
  • Listing is not endorsement

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