P21
Best value right now · 10 mg
Soma Chems
IN STOCKUNTESTED
Per mg23% under the $11.00 median
Vial price10 mg · verified Aug 21
Avg per mg · 10 mg
$13.06+53.7%
Ranged $8.50 – $18.08 across 8 vendorsCompare 5 vendors · 10 mg
VendorStock
04
Behemoth LabzUNTESTED · OUT
$6.20$61.98
05
Protide HealthUNTESTED · OUT
$11.00$110.00
P21 prices verified Aug 21, 2026
$8.50/mgSoma Chems · $84.99
Buy best pricePrice movement · 30 days
0%median per mg, all sizes
Cheapest ever recorded: $6.20/mg on Aug 21. Today is 37.1% above that low.See our top-ranked P21 vendors
Ranked by Finnrick trust score, independent lab testing, and price.
Compare P21 head-to-head
All peptide comparisonsQuick Summary
A research peptide available from 8 vendors. Available from 8 vendors, priced from $61.98 to $1149.50.
- 4 of 8 vendors currently have it in stock
- Highest-rated vendor: Simple Peptide (7.0 Finnrick score)
- Most common vial size: 10mg
- Category: Cognitive / Neuro — Nootropic and neuroprotective peptides
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