Vendors

Peptides Greyhouse vs Peptiva Research Labs

Across the 17 products both vendors stock, Peptides Greyhouse has the lower effective price per mg on 7 and Peptiva Research Labs on 9, and 1 prices the same to the cent. Peptides Greyhouse lists 94 tracked listings across 62 products; Peptiva Research Labs lists 21 across 17. 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.

Peptides Greyhouse

Peptides Greyhouse is a research-peptide vendor that lists 92 injectable peptides, including Selank, Semax and Epitalon.

Price vs market median
8% above market
Tracked catalog
62 products · $$$
Cheaper on
7 of 17 shared
COA coverage
None found
Visit Peptides Greyhouse
Peptiva Research Labs

Peptiva Research Labs is a research-peptide vendor that lists 21 injectable peptides, including BPC-157, MOTS-c and Tirzepatide.

Price vs market median
20% above market
Tracked catalog
17 products · $$$
Cheaper on
9 of 17 shared
COA coverage
None found
Visit Peptiva Research Labs

Vendor facts

Detail
Peptides Greyhouse
Peptiva Research Labs
Sells
92 vials
21 vials
Tracked listings
94 across 62 products
21 across 17 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
Peptides Greyhouse
Peptiva Research Labs
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

17 products both stock
Product
Peptides Greyhouse
Peptiva Research Labs
DSIP
$7.50
$6
GHK-Cu
$0.88
$1.50
Ipamorelin
$5.50
$7
KPV
$8.10
$6
MOTS-c
$8.50
$3
NAD+
$0.27
$0.13
PT-141
$3.90
$9
Retatrutide
$12.67
$9.33
Selank
$1.90
$5
Semax
$2.40
$5
SS-31
$4.67
$7
TB-500
$12.40
$7
Tesamorelin
$9.45
$12
Tirzepatide
$11.83
$8
Semaglutide
$12.75
$10

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 Greyhouse

45 products the other vendor does not list

37 more on the Peptides Greyhouse page

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

Questions

Is Peptides Greyhouse cheaper than Peptiva Research Labs?
On the 17 products both vendors stock, Peptides Greyhouse has the lower effective price per mg on 7 and Peptiva Research Labs on 9, 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?
Peptides Greyhouse: none found. Peptiva Research Labs: 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?
Peptides Greyhouse has 62 priced products in the current index and Peptiva Research Labs has 17, 17 of which appear on both catalogs. 45 products are listed only by Peptides Greyhouse and 0 only by Peptiva Research Labs.

Keep looking

Market tape