Vendors

MetBio Peptides vs Peptides Greyhouse

Across the 40 products both vendors stock, MetBio Peptides has the lower effective price per mg on 22 and Peptides Greyhouse on 18. MetBio Peptides lists 58 tracked listings across 43 products; Peptides Greyhouse lists 93 across 63. 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.

MetBio Peptides

MetBio Peptides is a research-peptide vendor that lists 58 injectable peptides, including MOTS-c, FOXO4-DRI and Ipamorelin.

Price vs market median
19% above market
Tracked catalog
43 products · $$$
Cheaper on
22 of 40 shared
COA coverage
None found
Visit MetBio Peptides
Peptides Greyhouse

Peptides Greyhouse is a research-peptide vendor that lists 93 injectable peptides, including Selank, Semax and Epitalon.

Price vs market median
7% above market
Tracked catalog
63 products · $$$
Cheaper on
18 of 40 shared
COA coverage
None found
Visit Peptides Greyhouse

Vendor facts

Detail
MetBio Peptides
Peptides Greyhouse
Sells
58 vials
93 vials
Tracked listings
58 across 43 products
93 across 63 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
MetBio Peptides
Peptides Greyhouse
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

40 products both stock
Product
MetBio Peptides
Peptides Greyhouse
5-Amino-1MQ
$1.90
$4.60
DSIP
$6
$7.50
Epitalon
$2.10
$2.50
FOXO4-DRI
$15
$27.60
GHK-Cu
$0.60
$0.88
Ipamorelin
$5
$5.50
KPV
$6.50
$8.10
Melanotan II
$4.50
$3.40
MOTS-c
$2.62
$8.50
NAD+
$0.11
$0.27
Pinealon
$7
$2.25
PT-141
$5.50
$3.90
Retatrutide
$6.17
$12.67
Selank
$5
$1.90
Semax
$5
$2.40
SS-31
$3.10
$4.67
TB-500
$7
$12.40
Thymosin Alpha-1
$9.50
$10.50
Tirzepatide
$4.33
$11.83
Adamax
$12
$7.50
AOD-9604
$9.50
$8.50

Showing 24 of 40 shared products; both full catalogs sit on the vendor pages. 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 MetBio Peptides

3 products the other vendor does not list

Only at Peptides Greyhouse

23 products the other vendor does not list

15 more on the Peptides Greyhouse page

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

Questions

Is MetBio Peptides cheaper than Peptides Greyhouse?
On the 40 products both vendors stock, MetBio Peptides has the lower effective price per mg on 22 and Peptides Greyhouse on 18. 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?
MetBio Peptides: none found. Peptides Greyhouse: 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?
MetBio Peptides has 43 priced products in the current index and Peptides Greyhouse has 63, 40 of which appear on both catalogs. 3 products are listed only by MetBio Peptides and 23 only by Peptides Greyhouse.

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Market tape