Vendors

OPS Peptide Science vs True Peptides USA

Across the 13 products both vendors stock, OPS Peptide Science has the lower effective price per mg on 1 and True Peptides USA on 12. OPS Peptide Science lists 89 tracked listings across 45 products; True Peptides USA lists 24 across 13. 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.

OPS Peptide Science

OPS Peptide Science is a research-peptide vendor that lists 88 injectable peptides, including GHK-Cu, Tirzepatide and Retatrutide.

Price vs market median
59% above market
Tracked catalog
45 products · $$$
Cheaper on
1 of 13 shared
COA coverage
None found
Visit OPS Peptide Science
True Peptides USA

True Peptides USA is a research-peptide vendor that lists 20 injectable peptides, including Epitalon, Retatrutide and Selank.

Price vs market median
2% below market
Tracked catalog
13 products · $$
Cheaper on
12 of 13 shared
COA coverage
None found
Visit True Peptides USA

Vendor facts

Detail
OPS Peptide Science
True Peptides USA
Sells
88 vials
20 vials
Tracked listings
89 across 45 products
24 across 13 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
OPS Peptide Science
True Peptides USA
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

13 products both stock
Product
OPS Peptide Science
True Peptides USA
BPC-157
$8
$4.90
Epitalon
$3.40
$1.50
GHK-Cu
$0.70
$0.98
KPV
$8
$3.63
MOTS-c
$5.88
$4.90
NAD+
$0.20
$0.16
Retatrutide
$6.33
$4.63
Selank
$8
$4
Semax
$7
$5.50
TB-500
$17.50
$7.50
Tesamorelin
$24.50
$7.50
Glutathione
$0.07
$0.03

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 OPS Peptide Science

32 products the other vendor does not list

24 more on the OPS Peptide Science page

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

Questions

Is OPS Peptide Science cheaper than True Peptides USA?
On the 13 products both vendors stock, OPS Peptide Science has the lower effective price per mg on 1 and True Peptides USA on 12. 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?
OPS Peptide Science: none found. True Peptides USA: 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?
OPS Peptide Science has 45 priced products in the current index and True Peptides USA has 13, 13 of which appear on both catalogs. 32 products are listed only by OPS Peptide Science and 0 only by True Peptides USA.

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