pepmg_
● P-21Nootropic peptide

Compound dossier · evidence, sources, and tracked market

P-21

Nootropic peptide not yet reviewed 0 cited studies 7 tracked vendors

P-21 market at a glance

Cheapest
$9.92/mg
Median · 7 listings
$12.75/mg
Highest
$23.20/mg
Vendors
7
P-21 price field, $/mg by vendor Each dot is one vendor's cheapest in-stock P-21 listing: 7 vendors, from $9.92 to $23.20 per mg. The market median is $12.75 per mg across 7 in-stock listings. 3 of these vendors are in the Lab-verifiable COAs tier and 2 in the Third-party COAs tier. $10 $12.5 $15 $17.5 $20 $22.5 median $12.75 Atomik Labz · $9.92/mgSolution Peptides · $9.92/mgVerified Peptides · $11.90/mg · Third-party COAsParamount Peptides · $12.75/mg · Lab-verifiable COAsAlpha Omega Peptide · $19.80/mg · Lab-verifiable COAsSwiss Chems · $22.99/mg · Lab-verifiable COAsCore Peptides · $23.20/mg · Third-party COAs P-21 price field, $/mg by vendor Each dot is one vendor's cheapest in-stock P-21 listing: 7 vendors, from $9.92 to $23.20 per mg. The market median is $12.75 per mg across 7 in-stock listings. 3 of these vendors are in the Lab-verifiable COAs tier and 2 in the Third-party COAs tier. $9.92 $23.20 median $12.75 Atomik Labz · $9.92/mgSolution Peptides · $9.92/mgVerified Peptides · $11.90/mg · Third-party COAsParamount Peptides · $12.75/mg · Lab-verifiable COAsAlpha Omega Peptide · $19.80/mg · Lab-verifiable COAsSwiss Chems · $22.99/mg · Lab-verifiable COAsCore Peptides · $23.20/mg · Third-party COAs
Lab-verifiable COAs 3 Third-party COAs 2 Other vendors 2 linear scale · one dot per vendor, its cheapest $/mg

Highest Vendor Scores, cheapest first

All 5 vendors carrying P-21 with a Vendor Score of 80+, ordered by $/mg

  1. Lowest $/mg of these 5

    Verified Peptides

    Third-party COAs

    $11.90/mg — view this 10 mg listing at Verified Peptides' store (opens in a new tab) ▼ 7% below median
    10 mg · $119.00
    83

    25 of 183+ COAs open at JanoshikRing: share of COAs openable at the lab · numeral: Vendor Score

    Vendor profile

  2. Paramount Peptides

    Lab-verifiable COAs

    $12.75/mg — view this 10 mg listing at Paramount Peptides' store (opens in a new tab) at median
    10 mg · $127.50
    99

    81 of 84 COAs open at Janoshik

    Vendor profile

  3. Alpha Omega Peptide

    Lab-verifiable COAs

    $19.80/mg — view this 10 mg listing at Alpha Omega Peptide's store (opens in a new tab) ▲ 55% above median
    10 mg · $198.00
    94

    33 of 37 COAs open at Freedom Diagnostics

    Vendor profile

  4. Swiss Chems

    Lab-verifiable COAs

    $22.99/mg — view this 5 mg listing at Swiss Chems' store (opens in a new tab) ▲ 80% above median
    5 mg · $114.95
    98

    24 of 26 COAs open at Freedom Diagnostics

    Vendor profile

  5. Core Peptides

    Third-party COAs

    $23.20/mg — view this 5 mg listing at Core Peptides' store (opens in a new tab) ▲ 82% above median
    5 mg · $116.00
    80

    Third-party COAs, self-hosted

    Vendor profile

Tiers name what a vendor publishes, not a verdict on any product's purity or quality. Lab-verifiable COAs: certificates that open on the testing lab's own site (the seal's ring shows what share of them do). Third-party COAs: certificates attributed to a third-party lab, which may be hosted only on the vendor's site. Tiers follow the Vendor Score (90+ and 80–89), which is 87% COA evidence; the numeral in each seal is that score. Affiliate relationships never affect tiers, selection or order. How the Vendor Score works

A neurotrophic peptide (P021) studied in preclinical research on cognition and BDNF-pathway models.

Published dosing & study context → Reconstitution calculator →

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first-party prices captured

Compare by exact vialThe small sealed glass container a compound ships in. size: 10mg (3 vendors)

email only when a vendor actually lowers a P-21 price — set a $/mg to only hear when it crosses your number · one-click stop
Size, form & budget

Price includes the displayed code where available. Shipping and tax are extra. Unknown sizes or prices are excluded when those filters are set.

Select up to four offers to compare side by side. Click a column heading to sort. Click again to reverse. Scroll sideways for more columns.

Tick up to four offers to compare side by side. Use Sort by to reorder. COA counts are each vendor's own library; batch match is not assumed.

P-21 · all tracked vendors · all tracked peptide listings, including out-of-stock products. Prices and stock reflect the last check. Non-comparable products do not enter market rankings. Trust scores measure published evidence, not product safety.
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NextGenPeps P21P-21 Vial / standard 5 $78.00 $15.60 out of stock 85/100 78 indexedVendor library; batch match not assumed Checked within 24 hoursPrice and stock were collected in the latest refresh.just now View product ↗
Verified Peptides P21 Peptide 10MG (P021)P-21 Vial / standard 10 $119.00 $11.90 in stock 83/100 183 indexedVendor library; batch match not assumed Checked within 24 hoursPrice and stock were collected in the latest refresh.just now View product ↗
Core Peptides P21 – 5MGP-21 Vial / standard 5 $116.00 $23.20 in stock 80/100 100 indexedVendor library; batch match not assumed Checked within 24 hoursPrice and stock were collected in the latest refresh. View product ↗
Swiss Chems P21 5mgP-21 Vial / standard 5 $114.95 $22.99 in stock 98/100 26 indexedVendor library; batch match not assumed Checked within 24 hoursPrice and stock were collected in the latest refresh. View product ↗
Atomik Labz P-21 12mgP-21 Vial / standard 12 $119.00 $9.92 in stock 35/100 99 indexedVendor library; batch match not assumed Checked within 24 hoursPrice and stock were collected in the latest refresh. View product ↗
Atomik Labz P-21 12mgP-21 · Not in price comparison Vial / standard 12 $1071.00 — in stock 35/100 99 indexedVendor library; batch match not assumed Checked within 24 hoursPrice and stock were collected in the latest refresh. View product ↗
Tydes P21 (P021) 10mgP-21 Vial / standard 10 $74.99 $7.50 out of stock 100/100 COA detailsVendor library; batch match not assumed Checked within 24 hoursPrice and stock were collected in the latest refresh. View product ↗
Alpha Omega Peptide P21 – 10mgP-21 Vial / standard 10 $198.00 $19.80 in stock 94/100 37 indexedVendor library; batch match not assumed Checked within 24 hoursPrice and stock were collected in the latest refresh. View product ↗
Modern Aminos P-21 (P021)P-21 Vial / standard 10 $98.00 $9.80 out of stock 76/100 106 indexedVendor library; batch match not assumed Checked within 24 hoursPrice and stock were collected in the latest refresh. View product ↗
Paramount Peptides P21 / BDNF (Brain-derived neurotrophic factor) (10mg)P-21 Vial / standard 10 $127.50 $12.75 in stock 99/100 84 indexedVendor library; batch match not assumed Checked within 24 hoursPrice and stock were collected in the latest refresh. View product ↗
RUO.bio P-21 5mgP-21 Vial / standard 5 $38.00 $7.60 out of stock 89/100 209 indexedVendor library; batch match not assumed Checked within 24 hoursPrice and stock were collected in the latest refresh. View product ↗
PureRawz P-21P-21 · Not in price comparison Vial / standard — $0.00 — in stock 72/100 100 indexedVendor library; batch match not assumed Checked within 24 hoursPrice and stock were collected in the latest refresh. View product ↗
Solution Peptides P-21 12mgP-21 Vial / standard 12 $119.00 $9.92 in stock 35/100 164 indexedVendor library; batch match not assumed Checked within 24 hoursPrice and stock were collected in the latest refresh. View product ↗
Solution Peptides P-21 12mgP-21 · Not in price comparison Vial / standard 12 $1071.00 — in stock 35/100 164 indexedVendor library; batch match not assumed Checked within 24 hoursPrice and stock were collected in the latest refresh. View product ↗
COACertificate of Analysis: a lab report stating a batch's measured identity and purity. availability: 12 of 12 tracked sources for P-21 publish a COA — 7 with at least one certificate you can open at the testing lab : RUO.bio (91 at the lab) , Paramount Peptides (81 at the lab) , Alpha Omega Peptide (33 at the lab) , Verified Peptides (25 at the lab) , Swiss Chems (24 at the lab) , NextGenPeps (20 at the lab) , Modern Aminos (19 at the lab) , Solution Peptides , Core Peptides , PureRawz , Atomik Labz , Tydes . What a COA proves →

Published dosing for P-21

Source-linked reference figures with the population and study context alongside each amount. Study arms are not a starting dose, titration schedule, or personal treatment plan. Label records refer to the named approved medicine, not vendor products.

No curated dosing record is available for P-21 in this index yet. That describes our coverage, not proof that no study exists. See the research and cited studies on this page.

Research use only — this reports what an FDA label or a peer-reviewed study published, tied to its species and study context. It is not medical advice, not a recommendation to use, and no dose here is generated by pepmg. Any dosing decision is for a qualified professional. Animal-study amounts do not establish a human dose.

Reconstitution calculator → · Converts your entered quantities; it does not select a dose or establish suitability for use.

▸ Why compare $/mg for P-21?

Prices for this compound vary widely between vendors; comparing $/mg avoids overpaying.

▸ Reading the COA

Always check each vendor's third-party Certificate of Analysis (COA) for identity and purity.

▸ Same cluster

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Selank $2.17/mg
Semax $1.35/mg
DSIP $2.20/mg
Kisspeptin $2.50/mg
Thymosin Alpha-1 $3.50/mg
IGF-1 LR3 $23.99/mg
LL-37 $4.60/mg
VIP $3.79/mg
Thymalin $2.00/mg
Thymulin $4.00/mg
MGF $10.00/mg
Follistatin $29.90/mg
PNC-27 $4.83/mg
Gonadorelin $6.55/mg
Teriparatide —
HCG —/mg
Oxytocin $3.50/mg
Dihexa $7.16/mg
Adamax $3.60/mg
Cerebrolysin $0.83/mg
Methylene Blue $1.60/mg
Pinealon $2.00/mg
Cartalax $2.00/mg
Cardiogen $1.76/mg
Testagen $2.00/mg
Vilon $2.00/mg
Livagen $2.70/mg
Vesugen $2.50/mg
Prostamax $2.60/mg
Ovagen $2.70/mg
Cortagen $2.35/mg
Thymogen $3.40/mg
Chonluten $2.55/mg
Bronchogen $2.70/mg
Pancragen $3.00/mg
PE-22-28 $3.80/mg
ACE-031 $69.99/mg
FGL $8.25/mg
IGF-1 DES $16.25/mg
→ Reconstitution calculator for P-21 research math.
All products listed are sold by third-party vendors for laboratory and research use only (RUO). Where an FDA label or a peer-reviewed study has published a dose, pepmg reports it with the source named, because that is safer than guessing. It is a report, not medical advice and not a recommendation to use anything. pepmg sells nothing and ships nothing. Listings are price-tracking data, not endorsements.