Vendors

Legion Peptides vs Peptides Greyhouse

Across the 29 products both vendors stock, Legion Peptides has the lower effective price per mg on 19 and Peptides Greyhouse on 9, and 1 prices the same to the cent. Legion Peptides lists 57 tracked listings across 30 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.

Legion Peptides

Legion Peptides is a research-peptide vendor that lists 57 injectable peptides, including NAD+, Tesamorelin and Melanotan II.

Price vs market median
16% below market
Tracked catalog
30 products · $
Cheaper on
19 of 29 shared
COA coverage
None found
Visit Legion 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
9 of 29 shared
COA coverage
None found
Visit Peptides Greyhouse

Vendor facts

Detail
Legion Peptides
Peptides Greyhouse
Sells
57 vials
93 vials
Tracked listings
57 across 30 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
Legion 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

29 products both stock
Product
Legion Peptides
Peptides Greyhouse
BPC-157
$3.74
$8
DSIP
$6.67
$7.50
Epitalon
$3.40
$2.50
FOXO4-DRI
$29
$27.60
GHK-Cu
$0.45
$0.88
Ipamorelin
$5.50
$5.50
KPV
$4
$8.10
Melanotan II
$2.61
$3.40
MOTS-c
$3.40
$8.50
NAD+
$0.07
$0.27
PT-141
$3.25
$3.90
Retatrutide
$3.80
$12.67
Selank
$4.90
$1.90
Semax
$4.90
$2.40
TB-500
$5.50
$12.40
Tesamorelin
$4.40
$9.45
Thymosin Alpha-1
$6.60
$10.50
Tirzepatide
$1.67
$11.83
AOD-9604
$11
$8.50
GHRP-2
$4.90
$4.20
GHRP-6
$4.90
$2.25
Glutathione
$0.05
$0.13

Showing 24 of 29 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 Legion Peptides

1 product the other vendor does not list

Only at Peptides Greyhouse

34 products the other vendor does not list

26 more on the Peptides Greyhouse page

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

Questions

Is Legion Peptides cheaper than Peptides Greyhouse?
On the 29 products both vendors stock, Legion Peptides has the lower effective price per mg on 19 and Peptides Greyhouse 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?
Legion 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?
Legion Peptides has 30 priced products in the current index and Peptides Greyhouse has 63, 29 of which appear on both catalogs. 1 product are listed only by Legion Peptides and 34 only by Peptides Greyhouse.

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Market tape