Peptide Referee

KPV price per mg, by vendor

82 listings from 67 vendors, refreshed Oct 15, 2026.

$1.43/mg
Lowest, in a multi-vial pack
$4.60/mg
Median
$10.00/mg
Highest
$2.50/mg
Lowest from a vendor with public batch COAs

How much does KPV cost?

Where to buy KPV: lowest prices from the most transparent vendors

The cheapest in-stock KPV from vendors that publish batch-specific certificates of analysis (COAs), by price per mg, leaving out vendors with red flags or a warning letter, lawsuit or seizure in the past three years (why).

#VendorTransparencyCOAsBest listing$/mgVendor's page
1 Evolve BioPep 83/100 Batch COAs public (Vanguard Laboratory, Chromate, ILS Laboratories) 10 mg for $25 $2.50/mg View
2 Puratek Peptides 63/100* Batch COAs public (Freedom Diagnostics) 10 mg for $35 $3.50/mg View
3 EZ Peptides 75/100* Batch COAs public (Freedom Diagnostics, TrustPointe Analytics, Kovera Labs, Horizon Analytical, ILS Laboratories) 11 mg for $39 $3.54/mg View
4 Panda Peptide 50/100* Batch COAs public (Janoshik Analytical) 10 mg for CA$55 $3.87/mg View
5 Volta Peptides 70/100 Batch COAs public 10 mg for $39 $3.90/mg View
6 GenPeptide 68/100* Batch COAs public (Janoshik Analytical, Freedom Diagnostics, Chromate) 10 mg for $40 $4.00/mg View
7 ANKR Lab 73/100 Batch COAs public (Freedom Diagnostics) 10 mg for $49 $4.90/mg View
8 Go Alpha Labs 83/100 Batch COAs public (Freedom Diagnostics) 10 mg for $50 $5.00/mg View

KPV price by vial size

Vial sizeListingsLowestMedianHighestMedian $/mg
5 mg7$28$35$50$6.99/mg
10 mg55$18$50$100$5.00/mg
20 mg2$69$82$95$3.39/mg
30 mg2$80$85$90$2.83/mg

Single vials only; multi-vial packs are in the full table below. Sizes with at least two listings.

All KPV listings

Vendor Transparency Product Size Price $/mg vs median Stock Vendor's page
Nexaph 45/100* KPV 10mg (10 vials/kit) 10 mg × 10 $143 $1.43/mg −69% In stock View
Bulk Peptide Supply 57/100* KPV 10 mg 10 mg $18 $1.75/mg −62% In stock View
Bulk Peptide Wholesale 45/100* KPV 10 mg (10 vials) 10 mg × 10 $175 $1.75/mg −62% In stock View
Iron Aminos 40/100* KPV 10mg 10 mg × 10 $210 $2.10/mg −54% In stock View
Evolve BioPep 83/100 KPV 10mg 10 mg $25 $2.50/mg −46% In stock View
IDUN Peptides 50/100* KPV 10 mg × 10 $250 $2.50/mg −46% In stock View
Bulk Peptide Supply 57/100* KPV 10 mg (10 vials) 10 mg × 10 $250 $2.50/mg −46% In stock View
Aurora Peptides 27/100* KPV 30MG 30 mg $80 $2.67/mg −42% In stock View
Welli Labs 10/100* KPV 10mg 10 mg $29 $2.90/mg −37% In stock View
IDUN Peptides 50/100* KPV 10 mg × 5 $150 $3.00/mg −35% In stock View
Peptide Plugs 57/100* KPV (2 sizes) 30 mg $90 $3.00/mg −35% In stock View
S1 Research 50/100 KPV 10mg 10 mg $30 $3.00/mg −35% In stock View
Peptide Partners FDA warning letter, Aug 2026 55/100* KPV (10mg vials) 10 mg × 10 $320 $3.20/mg −30% In stock View
Reta One Labs 55/100* KPV 10mg 10 mg $32 $3.20/mg −30% In stock View
Crush Research 10/100* KPV 10mg 10 mg × 3 $99 $3.30/mg −28% In stock View
PurePeps 35/100* KPV 10MG / 20MG 20 mg A$95 $3.33/mg* −28% In stock View
Ion Peptide 25/100* KPV 20 mg $69 $3.45/mg −25% In stock View
Puratek Peptides 63/100* KPV 10 mg 10 mg $35 $3.50/mg −24% In stock View
IDUN Peptides 50/100* KPV 10 mg $35 $3.50/mg −24% In stock View
Peptide Plugs 57/100* KPV (2 sizes) 10 mg $35 $3.50/mg −24% In stock View
EZ Peptides 75/100* KPV 11 mg $39 $3.54/mg −23% In stock View
Nextech Labs 60/100 KPV 10mg 10 mg $36 $3.58/mg −22% In stock View
PS Peptides 22/100* KPV (1 Vial) – Subscription 10 mg $36 $3.60/mg −22% In stock View
Royal Peptides FDA warning letter, Aug 2026 52/100 KPV 10mgx10vials 10 mg × 10 $370 $3.70/mg −20% In stock View
Peptide Partners FDA warning letter, Aug 2026 55/100* KPV (10mg vials) 10 mg × 5 $190 $3.80/mg −17% In stock View
PX Peptides 5/100* KPV 10 mg $38 $3.82/mg −17% Out of stock View
Panda Peptide 50/100* KPV 10 mg 10 mg CA$55 $3.87/mg* −16% In stock View
Crush Research 10/100* KPV 10mg 10 mg $39 $3.90/mg −15% In stock View
Modern Aminos 77/100 KPV 10 mg $39 $3.90/mg −15% In stock View
Volta Peptides 70/100 KPV 10mg 10 mg $39 $3.90/mg −15% In stock View
Receptor Chem 62/100* KPV 10 mg £30 $3.98/mg* −14% In stock View
Nation Peptides 65/100 KPV 10 mg $40 $4.00/mg −13% In stock View
OROS Research 55/100* KPV 15mg 15 mg $60 $4.00/mg −13% In stock View
Go Alpha Labs 83/100 KPV (10mg) (10 Vials) 10 mg × 10 $400 $4.00/mg −13% In stock View
GenPeptide 68/100* KPV 10mg 10 mg $40 $4.00/mg −13% In stock View
Peptide Crafters 27/100* KPV (10mg) 10 mg $40 $4.00/mg −13% In stock View
Southern Aminos 10/100* KPV 10mg 10 mg $40 $4.00/mg −13% In stock View
PurePeps 35/100* KPV 10MG / 20MG 10 mg A$60 $4.21/mg* −9% In stock View
Peptide Partners FDA warning letter, Aug 2026 55/100* KPV (10mg vials) 10 mg × 2 $88 $4.40/mg −4% In stock View
Licensed Peptides 62/100 KPV 10mg (10 vials) 10 mg × 10 $450 $4.50/mg −2% Out of stock View
Alpha Omega Peptide 75/100 KPV 10MG 10 mg $45 $4.50/mg −2% — View
Bioscience Peptides 25/100* KPV (10mg) 10 mg $45 $4.50/mg −2% In stock View
Oasis Labs 60/100 KPV 10mg 10 mg $47 $4.70/mg +2% In stock View
ANKR Lab 73/100 KPV 10mg 10 mg $49 $4.90/mg +7% In stock View
Ion Peptide 25/100* KPV 10 mg $49 $4.90/mg +7% In stock View
Legendary Peptides Lawsuit, Aug 2026 90/100 KPV 10mg 10 mg $49 $4.90/mg +7% In stock View
Go Alpha Labs 83/100 KPV (10mg) 10 mg $50 $5.00/mg +9% In stock View
True Form Peptides 67/100 KPV 10mg 10 mg $50 $5.00/mg +9% In stock View
Rhome Research 55/100 KPV – (12mg) 12 mg $60 $5.00/mg +9% In stock View
Lux Synth Aminos 28/100* KPV 10mg 10 mg $50 $5.00/mg +9% In stock View
Peptide Maxxing 40/100* KPV 10 mg $52 $5.17/mg +13% In stock View
Enhanced Chems 25/100* KPV 10mg 10 mg $55 $5.50/mg +20% In stock View
Apex Amino 55/100 KPV – 10mg 10 mg $55 $5.50/mg +20% In stock View
Hydro Research 80/100 KPV 10 mg 10 mg $55 $5.50/mg +20% In stock View
NuLife Peptides 10/100* KPV (10mg) 10 mg $55 $5.50/mg +20% In stock View
Polaris Peptides 45/100 KPV 10mg 10 mg $55 $5.50/mg +20% In stock View
Royal Peptides FDA warning letter, Aug 2026 52/100 KPV 10 mg $55 $5.50/mg +20% In stock View
Injectify 32/100* KPV 5 mg $29 $5.80/mg +26% In stock View
Strand Bio 30/100* KPV 10 mg $59 $5.90/mg +28% — View
AIO Peptides 52/100 KPV 10mg 10 mg $60 $6.00/mg +30% In stock View
American Peptides 47/100* KPV 10 mg $60 $6.00/mg +30% In stock View
Evolve Peptides 60/100* KPV 10 mg 10 mg $60 $6.00/mg +30% In stock View
Particle Peptides 83/100 KPV 5mg 5 mg €28 $6.19/mg* +34% — View
Paramount Peptides 65/100 KPV (10mg) 10 mg $63 $6.29/mg +37% In stock View
Enhanced Chems 25/100* KPV 5mg 5 mg $32 $6.40/mg +39% In stock View
Pure Peptide Labs 90/100 KPV 10 mg $65 $6.50/mg +41% In stock View
Nationwide Peptides 85/100 KPV Peptide 10 mg $67 $6.70/mg +46% In stock View
Alpha Gen 55/100* KPV 10 mg $69 $6.88/mg +50% — View
Peptides World 80/100 KPV-10Mg 10 mg $70 $6.99/mg +52% In stock View
Blue Sky Peptide 35/100* KPV 5mg 5 mg $35 $6.99/mg +52% In stock View
Peptide Labs 65/100 KPV 10 mg $70 $7.00/mg +52% In stock View
Protide Health 75/100 KPV 10mg 10 mg $70 $7.00/mg +52% In stock View
Nupeps 40/100* KPV 10MG 10 mg $73 $7.30/mg +59% — View
Alpha Peps 78/100 KPV 10mg 10 mg $75 $7.50/mg +63% In stock View
Risynth Bio 47/100* KPV 10 mg $75 $7.50/mg +63% In stock View
Certified Peptides 60/100* KPV 10MG 10 mg $76 $7.60/mg +65% In stock View
Evolve Peptides 60/100* KPV 5 mg 5 mg $40 $8.00/mg +74% In stock View
Peptides Warehouse 62/100 KPV 10mg 10 mg $82 $8.16/mg +77% In stock View
Pure Lab Peptides 82/100 KPV 10mg 10 mg $90 $9.00/mg +96% In stock View
BioLongevity Labs 72/100 KPV (10mg) 10 mg $100 $10.00/mg +117% In stock View
Alpha Peps 78/100 KPV 5mg 5 mg $50 $10.00/mg +117% In stock View
Nationwide Peptides 85/100 KPV Peptide 5 mg $50 $10.00/mg +117% In stock View

Transparency is our score out of 100 for how much a vendor makes public about itself. It isn't a purity test.

Prices come from each vendor's public product feed and were last fetched Oct 15, 2026. They exclude shipping and discounts. $/mg uses the labeled amount, not measured content. $/mg marked * was converted to US dollars from the listed currency at the European Central Bank reference rate. A transparency score marked * is based on fewer than six checks; checks we couldn't complete score 0. How we compare prices.

Before you compare on price alone

A low price is only a bargain if the vial holds what the label says, and a high one doesn't prove quality: only an independent lab test shows what's in a vial. Check the vendor's latest batch certificate of analysis (how to read one), and see our KPV overview for what's known about the compound.

Is KPV legal? Status by market

A summary of official sources, checked Oct 14, 2026. Not legal advice.

United States
Not FDA-approved; FDA staff recommended against adding KPV to the 503A compounding list, and although FDA's advisory committee voted 8–6 to recommend it in July 2026, FDA has not added it [1][2][3].
United Kingdom
No UK-licensed medicine containing KPV appears in the MHRA products database [4].
European Union
No medicine containing KPV is authorized in the EU, according to EMA's central and Article 57 product data [5][6].
Canada
No product containing KPV appears in Health Canada's Drug Product Database [7].
Australia
KPV is not named in Australia's Poisons Standard (October 2026) [8].
Sport (WADA)
Not named on the 2026 Prohibited List; its section S0 bans any pharmacological substance with no current approval for human therapeutic use [9].

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