Vendors

aminowell vs Peptides Greyhouse

Across the 22 products both vendors stock, aminowell has the lower effective price per mg on 17 and Peptides Greyhouse on 5. aminowell lists 66 tracked listings across 23 products; Peptides Greyhouse lists 94 across 62. 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.

aminowell

aminowell is a US research-peptide vendor that lists 29 injectable peptides, including NAD+, TB-500 and Ipamorelin.

Price vs market median
12% below market
Tracked catalog
23 products · $
Cheaper on
17 of 22 shared
COA coverage
None found
Visit aminowell
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
5 of 22 shared
COA coverage
None found
Visit Peptides Greyhouse

Vendor facts

Detail
aminowell
Peptides Greyhouse
Sells
29 vials
92 vials
Location
US
—
Free over
$250
—
Storefront
woocommerce
—
Tracked by us since
Jul 2026
—
Tracked listings
66 across 23 products
94 across 62 products

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

Certificates on file

Detail
aminowell
Peptides Greyhouse
COA coverage
None found
None found
Certificates
0 current
0 current
Labs
—
—
Newest test date
—
—
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

22 products both stock
Product
aminowell
Peptides Greyhouse
5-Amino-1MQ
$1.59
$4.60
BPC-157
$4.80
$8
Epitalon
$23.60
$2.50
GHK-Cu
$0.64
$0.88
Ipamorelin
$4.10
$5.50
KPV
$4.80
$8.10
Melanotan II
$1.36
$3.40
MOTS-c
$8.20
$8.50
NAD+
$0.09
$0.27
Retatrutide
$5.97
$12.67
Selank
$3.50
$1.90
Semax
$3.50
$2.40
SS-31
$4.90
$4.67
TB-500
$4.80
$12.40
Tesamorelin
$6.90
$9.45
Thymosin Alpha-1
$6.40
$10.50
Tirzepatide
$2.47
$11.83
AOD-9604
$4.80
$8.50
Cagrilintide
$9.90
$15
Glutathione
$0.42
$0.13
IGF-LR3
$68
$75
L-Carnitine
$0.08
$0.10

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 aminowell

1 product the other vendor does not list

Only at Peptides Greyhouse

40 products the other vendor does not list

32 more on the Peptides Greyhouse page

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

Questions

Is aminowell cheaper than Peptides Greyhouse?
On the 22 products both vendors stock, aminowell has the lower effective price per mg on 17 and Peptides Greyhouse on 5. 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?
aminowell: 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?
aminowell has 23 priced products in the current index and Peptides Greyhouse has 62, 22 of which appear on both catalogs. 1 product are listed only by aminowell and 40 only by Peptides Greyhouse.

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