Vendors

Better Peptide vs Peptides Source

Across the 19 products both vendors stock, Better Peptide has the lower effective price per mg on 11 and Peptides Source on 7, and 1 prices the same to the cent. Better Peptide lists 25 tracked listings across 20 products; Peptides Source lists 98 across 45. On certificates of analysis both show none found COA coverage of the in-stock products we track. 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.

Better Peptide

Better Peptide is a research-peptide vendor that lists 21 injectable peptides and 2 nasal sprays.

Price vs market median
25% below market
Tracked catalog
20 products · $
Cheaper on
11 of 19 shared
COA coverage
None found
Visit Better Peptide
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
3% below market
Tracked catalog
45 products · $$
Cheaper on
7 of 19 shared
COA coverage
None found
Visit Peptides Source

Vendor facts

Detail
Better Peptide
Peptides Source
Sells
21 vials, 2 sprays
97 vials
Tracked listings
25 across 20 products
98 across 45 products

Dashes mark facts we have not recorded yet. Vendor-stated details come from each storefront and can change without notice.

Certificates on file

Detail
Better Peptide
Peptides Source
COA coverage
None found
None found
Certificates
0 current
0 current
Labs
—
—
Newest test date
—
—

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

19 products both stock
Product
Better Peptide
Peptides Source
BPC-157
$4.50
$4.25
GHK-Cu
$0.40
$0.80
Ipamorelin
$4.50
$6.50
KPV
$4.50
$6
MOTS-c
$4
$3.67
NAD+
$0.11
$0.08
PT-141
$3.50
$5
Selank
$4
$5
SS-31
$4
$3
TB-500
$4
$7
Tesamorelin
$5.50
$6.56
ARA-290
$4
$3.75
IGF-LR3
$54.99
$80
Semaglutide
$4.50
$3.83

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 Better Peptide

1 product the other vendor does not list

Only at Peptides Source

26 products the other vendor does not list

18 more on the Peptides Source page

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

Questions

Is Better Peptide cheaper than Peptides Source?
On the 19 products both vendors stock, Better Peptide has the lower effective price per mg on 11 and Peptides Source on 7, with 1 priced the same to the cent. 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?
Better Peptide: none found. Peptides Source: none found. 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.
What does each vendor carry?
Better Peptide has 20 priced products in the current index and Peptides Source has 45, 19 of which appear on both catalogs. 1 product are listed only by Better Peptide and 26 only by Peptides Source.

Keep looking

Market tape