Vendors

Peptides Source vs Virtus Peptides

Across the 5 products both vendors stock, Peptides Source has the lower effective price per mg on 1 and Virtus Peptides on 4. Peptides Source lists 98 tracked listings across 45 products; Virtus Peptides lists 7 across 5. On certificates of analysis the in-stock products we track rate none found at Peptides Source and broad at Virtus Peptides. Based on the certificates our crawler found; vendors may publish more than we index. These are price and document observations, not quality ratings, and neither vendor is endorsed.

Peptides Source

Peptides Source is a research-peptide vendor that lists 97 injectable peptides, including NAD+, Epitalon and CJC-1295 (no DAC).

Price vs market median
4% below market
Tracked catalog
45 products · $$
Cheaper on
1 of 5 shared
COA coverage
None found
Visit Peptides Source
Virtus Peptides

Virtus Peptides is a US research-peptide vendor based in AZ that lists 5 injectable peptides, including Tirzepatide, Retatrutide and BPC-157.

Price vs market median
46% below market
Tracked catalog
5 products · $
Cheaper on
4 of 5 shared
COA coverage
Broad
Visit Virtus Peptides

Vendor facts

Detail
Peptides Source
Virtus Peptides
Sells
97 vials
5 vials
Location
—
AZ, US
Ships from
—
Arizona
Shipping
—
$5
Free over
—
$200
Payment
—
card, zelle, ach
Storefront
—
nextjs
Tracked by us since
—
Sep 2026
Tracked listings
98 across 45 products
7 across 5 products

Dashes mark facts we have not recorded yet. Vendor-stated details come from each storefront and can change without notice. Facts for Virtus Peptides were extracted from the vendor's site and not yet reviewed by us.

Certificates on file

Detail
Peptides Source
Virtus Peptides
COA coverage
None found
Broad
Certificates
0 current
4 current
Labs
—
2 named, most from Vanguard Laboratory
Newest test date
—
Oct 16, 2026
Third-party tested claim
—
—

Coverage rates how many of the in-stock products we track have a certificate our pipeline read and matched to a catalog peptide. Based on the certificates our crawler found; vendors may publish more than we index. We do not test products, and a certificate cannot show authenticity, chain of custody or sterility.

Price per mg on shared products

5 products both stock
Product
Peptides Source
Virtus Peptides
BPC-157
$4.25
$2.90
KPV
$6
$2.90
Tesamorelin
$6.56
$5.90

The lower price of each pair is highlighted. Prices are the cheapest in-stock listing we track for that product, per mg after any public discount code, and they move daily.

Carried by one vendor only

Only at Peptides Source

40 products the other vendor does not list

32 more on the Peptides Source page

Prices shown are per mg for the cheapest in-stock listing we track.

Questions

Is Peptides Source cheaper than Virtus Peptides?
On the 5 products both vendors stock, Peptides Source has the lower effective price per mg on 1 and Virtus Peptides on 4. Each side uses the cheapest in-stock listing we track for that product, after any public discount code, and prices change often.
How much COA coverage does each vendor have?
Peptides Source: none found. Virtus Peptides: broad, newest test dated 2026-10-16. Based on the certificates our crawler found; vendors may publish more than we index. We do not test products ourselves, and a certificate cannot prove authenticity or sterility.
How do shipping and payment differ between Peptides Source and Virtus Peptides?
Peptides Source: we have not recorded shipping or payment details yet. Virtus Peptides: ships from Arizona, shipping $5, accepts card, zelle, ach. Details come from each vendor's own site and can change without notice; check the storefront before ordering.

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Market tape