Prices and COAs checked October 2026

Where to Buy Peptides: Ranked Vendor Sources

Ranked peptide vendors compared on price per milligram, COA availability and shipping. Independent picks for BPC-157, TB-500, GHK-Cu and more.

Where to Buy Peptides: Ranked Vendor Sources
Top pick
BPC-157
Peptide God

BPC-157

3.8 our rating

BPC-157 lyophilized vial from Peptide God at $34.95 per unit.

What we look at

Third-party testing

We look for a batch-level certificate of analysis published by the merchant.

Stated purity and fill

Purity percentage and milligrams per vial as stated on the product page.

Labeling and storage info

Clear research-use labeling, lot numbers and storage instructions.

Cost per milligram

Vials compared on price per milligram, not on sticker price.

The 6 picks, ranked

1
Top Pick BPC-157
Peptide God

BPC-157

3.8 our rating

BPC-157 lyophilized vial from Peptide God at $34.95 per unit.

Price$34.95
BrandPeptide God
FormLyophilized vial
StatusIn stock
Competitive price at $34.95 per vial
Consistently in stock with standard shipping
Simple checkout and ordering process
Product page does not display a COA
Vial size in milligrams not listed on page
2
BPC-157 Peptide 10mg
Real Peptides

BPC-157 Peptide 10mg

4.3 our rating

BPC-157 10mg vial from Real Peptides with published lot COA and HPLC data at $43.20.

Price$43.20
Amount10mg
BrandReal Peptides
Purity≥99% HPLC
10mg per vial is a larger research quantity
Published lot COA with HPLC purity data
Ships from US stock within 24 hours
Higher per-vial cost at $43.20
Research-use-only labeling limits accessibility
3
Blend BPC-157 + TB500
Peptide God

BPC-157 + TB500

3.7 our rating

Pre-blended BPC-157 and TB-500 in one vial from Peptide God at $59.95.

Price$59.95
BrandPeptide God
FormLyophilized blend
StatusIn stock
Two peptides in a single vial for convenience
Priced lower than buying both separately
In stock with standard shipping
No COA displayed on the product page
Individual peptide amounts per vial not specified
4
TB500
Peptide God

TB500

3.7 our rating

TB-500 (Thymosin Beta-4 fragment) lyophilized vial from Peptide God at $35.00.

Price$35.00
BrandPeptide God
FormLyophilized vial
StatusIn stock
Low price point at $35.00 per vial
Consistently available in the Peptide God catalog
Ships with other Peptide God products
No COA documentation on the product page
Milligram amount per vial not stated
5
Epithalon
Peptide God

Epithalon

3.5 our rating

Epithalon tetrapeptide from Peptide God, the lowest-priced item in the catalog at $29.95.

Price$29.95
BrandPeptide God
FormLyophilized vial
StatusIn stock
Lowest price in the Peptide God lineup at $29.95
In stock and ships with standard options
Simple ordering through the store
No COA on the product page
Milligram content not specified
6
Bacteriostatic Water 10ml
Real Peptides

Bacteriostatic Water 10ml

4.5 our rating

USP-grade bacteriostatic water 10ml from Real Peptides at $4.80.

Price$4.80
Size10ml
BrandReal Peptides
GradeUSP
Extremely affordable at $4.80
USP-grade with 0.9% benzyl alcohol
Ships from US stock within 24 hours
Only available in 10ml size
No bulk discount listed

Quick comparison

ProductPriceBrandFormStatusPrice
Peptide God BPC-157$34.95Peptide GodLyophilized vialIn stock$34.95
Real Peptides BPC-157 Peptide 10mg$43.20Real Peptides--$43.20
Peptide God BPC-157 + TB500$59.95Peptide GodLyophilized blendIn stock$59.95
Peptide God TB500$35.00Peptide GodLyophilized vialIn stock$35.00
Peptide God Epithalon$29.95Peptide GodLyophilized vialIn stock$29.95
Real Peptides Bacteriostatic Water 10ml$4.80Real Peptides--$4.80

Buying research peptides online takes about thirty seconds. Knowing whether the vial contains what the label claims takes significantly longer. We reviewed vendor product pages, checked for published certificates of analysis, calculated price per milligram where possible and flagged every gap in documentation. The vendors below are ranked on what they actually show the buyer, not on forum chatter or influencer endorsements.

BPC-157 TB-500 Topical Supplies

Vendor Evaluation Checklist
Lot-specific COA on product page
Required for top ranking
HPLC purity stated with method
Required
Vial size in mg disclosed
Required for price/mg calculation
Endotoxin screening published
Preferred
Mass spectrometry identity confirmation
Preferred
US-based shipping
Required

How We Rank Peptide Vendors

Rankings depend on documentation. A vendor that publishes third-party lab data and discloses the amount per vial gets ranked above one that does not, regardless of sticker price. Price per milligram only factors in when the milligram content is published. If it is not published, the vendor cannot be ranked on value. That is their problem, not ours.

We do not contact vendors for unpublished data. We do not accept explanations like "we test internally but don't post results." If it is not on the product page, it does not exist for our purposes. This keeps the evaluation consistent across all vendors. Our full brand profiles cover each company in detail.

Affiliate links appear on this site. Clicking a product link may generate a commission. That does not affect ranking position. A vendor with a higher commission rate does not move up our table. Documentation quality determines placement. Price per milligram determines value scoring. Those two metrics are objective. Everything else is noise.

BPC-157 Vendors

Ranked Comparison

BPC-157 Products Ranked by Documentation
RankProductVendorPriceAmountPrice/mgPurityCOA
1BPC-157 10mgReal Peptides$43.2010mg$4.32≥99% HPLCPublished, lot-specific
2BPC-157PeptideGod$34.95Not listedN/ANot statedNone on page
3BPC-157 + TB-500 BlendPeptideGod$59.95Not listedN/ANot statedNone on page

Real Peptides takes the top position because it is the only BPC-157 vendor in our database that publishes a lot-specific COA with HPLC verification. The 10mg vial at $43.20 works out to $4.32 per milligram. PeptideGod's BPC-157 has a lower sticker price at $34.95, but the product page does not list the milligram amount. Without that number, price per milligram cannot be calculated. The blend product combines two peptides in one vial, which complicates comparison further because neither quantity is disclosed.

BPC-157 Price by Vendor
Real Peptides BPC-157 10mg43.2 $
PeptideGod BPC-15734.95 $
PeptideGod BPC-157+TB50059.95 $
Source: vendor product pages, October 2026

A lower sticker price does not automatically mean better value. The $34.95 vial could be 5mg, which puts it at $6.99/mg. It could be 10mg, which would be $3.50/mg. We have no way to confirm either scenario from the product page alone. For a closer look at BPC-157 research context, visit our BPC-157 therapy guide.

TB-500 Vendors

PeptideGod TB-500

PeptideGod sells TB-500 at $35.00 per vial. The product page follows the same pattern as their BPC-157: lyophilized powder, no milligram amount listed, no COA published. TB-500 is a synthetic fragment of thymosin beta-4, a 43-amino-acid peptide studied in wound healing and cardiac repair models. The commercial fragment and the full protein used in published research are not identical, which is a distinction worth noting.

We found no other TB-500 vendor in our review database with published testing documentation. That is a gap in the market, not an endorsement of buying undocumented product. Buyers looking to combine BPC-157 and TB-500 have two options: purchase PeptideGod's pre-blended vial at $59.95, or buy each peptide separately and reconstitute at controlled ratios. The second approach gives more control over concentration, but the first saves time. Neither option currently comes with third-party verification. More on the peptide itself is available on our BPC-157 + TB-500 stack page.

Topical Peptide Products

GHK-Cu Creams and Serums

Topical peptides occupy a different regulatory space than lyophilized vials. GHK-Cu has published human skin data supporting its use in collagen synthesis and wound healing when applied topically. Three vendors sell topical GHK-Cu products at wildly different price points.

Topical GHK-Cu Products
ProductVendorPriceFormatConcentrationReviews
GHK-Cu CreamNeurogan$20.00Cream, 1200mg2%4.9★ (34 reviews)
GHK-CuScantifix$49.00TopicalNot statedN/A
Copper ComplexDoctorDerm$74.50PrescriptionNot statedN/A

Neurogan's cream at $20.00 with 1200mg at 2% concentration and 34 user reviews at 4.9 stars is the most transparent topical option. The price difference between Neurogan and DoctorDerm is $54.50, which raises the question of what the prescription pathway adds beyond the consultation itself. Our research peptides overview covers GHK-Cu data in more detail.

Reconstitution Supplies

Bacteriostatic Water

Every lyophilized peptide vial requires reconstitution with bacteriostatic water before use in research. Real Peptides sells a 10ml vial of USP-grade bacteriostatic water at $4.80. It contains 0.9% benzyl alcohol as a preservative, which inhibits microbial growth across multiple draw sessions.

We did not find bacteriostatic water listed on PeptideGod's product page during our review. Researchers purchasing from PeptideGod will need to source water separately. Our reconstitution calculator handles the concentration math once vial size and water volume are known.

$4.32/mglowest confirmed BPC-157 price per milligram
$4.80bacteriostatic water, 10ml USP (Real Peptides)
≥99%highest stated BPC-157 purity (HPLC verified)
0PeptideGod products with published COA

What the Price Chart Does Not Show

Sticker price comparisons miss several factors. Shipping costs vary by vendor. Cold-chain shipping matters for peptide stability during transit. Stock availability fluctuates. During our evaluation, product availability changed between review sessions. The price chart above reflects published product page prices at the time of our data collection and does not include shipping or handling fees.

We also cannot account for batch-to-batch variation in products that lack COA documentation. A vendor could ship consistent product for months and then change suppliers. Without lot-specific testing data, there is no way to detect that change. This is not speculation. It is the logical consequence of absent documentation.

Stock Availability

Product availability changes between review sessions. During our data collection, some products were listed as in stock on one visit and out of stock on the next. We do not track real-time inventory. Prices and availability listed here reflect what was visible on vendor product pages at the time of our most recent review. Verify current stock directly on the vendor's site before purchasing. Our best peptides page offers additional product comparisons with stock notes.

FAQ - Where to Buy Peptides

Which vendor has the best BPC-157?

Based on our evaluation criteria, Real Peptides ranks first for BPC-157 because of published lot-specific COA data, stated HPLC purity of 99% or higher and a disclosed 10mg vial size. PeptideGod has a lower sticker price but does not publish testing documentation or milligram content on their product page.

Is it safe to buy peptides online?

Research peptides are sold as laboratory chemicals, not as pharmaceuticals or dietary supplements. The safety of any product depends on its purity, identity and the absence of contaminants like endotoxins. Vendors that publish third-party COA data give buyers a way to verify these factors. Vendors that do not publish COAs require buyers to trust without evidence. See our peptide safety guide for more.

Why do prices vary so much between vendors?

Prices range from $34.95 to $59.95 per BPC-157 vial. The variation reflects differences in vial size (where disclosed), testing overhead, sourcing and margin. A vendor that pays for third-party HPLC and endotoxin testing on every lot has higher costs than one that does not test or does not publish results. Price per milligram, not sticker price, is the correct comparison metric.

Do I need bacteriostatic water?

Yes, for any lyophilized peptide vial. Bacteriostatic water dissolves the freeze-dried powder into a solution. USP-grade water with 0.9% benzyl alcohol is the standard. Real Peptides sells it at $4.80 per 10ml vial. Use our calculator to determine the right water volume for your target concentration.

Can I buy peptides legally in the US?

Research peptides are not controlled substances in the United States. They can be purchased without a prescription when sold as laboratory chemicals labeled "for research use only." The FDA restricts vendors from making health claims and has issued warning letters to companies that market peptides as treatments. The distinction between selling a research chemical and selling an unapproved drug is primarily about how the product is marketed, not the compound itself. Consult our research peptides page for regulatory details.

Consult a qualified healthcare provider before making any decisions about peptide use. The products discussed on this page are sold for laboratory research purposes only and are not intended for human consumption. Nothing on this site constitutes medical advice, diagnosis or treatment recommendation.