Vendors

peptidology vs Skye Peptides

Across the 29 products both vendors stock, peptidology has the lower effective price per mg on 18 and Skye Peptides on 11. peptidology lists 74 tracked listings across 43 products; Skye Peptides lists 91 across 37. On certificates of analysis the in-stock products we track rate broad at peptidology and limited at Skye Peptides. 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.

peptidology

peptidology is a US research-peptide vendor based in Scottsdale, AZ that lists 60 injectable peptides and 1 capsule.

Price vs market median
10% below market
Tracked catalog
43 products · $
Cheaper on
18 of 29 shared
COA coverage
Broad
Visit peptidology
Skye Peptides

Skye Peptides is a US research-peptide vendor based in Los Angeles, California that lists 52 injectable peptides and 3 tablets.

Price vs market median
7% above market
Tracked catalog
37 products · $$$
Cheaper on
11 of 29 shared
COA coverage
Limited
Visit Skye Peptides

Vendor facts

Detail
peptidology
Skye Peptides
Sells
60 vials, 1 capsules
52 vials, 3 tablets
Location
Scottsdale, AZ, US
Los Angeles, California, US
Ships from
Scottsdale, AZ
Payment
card
Accepts returns
Yes
No
Storefront
shopify
WooCommerce
Tracked by us since
Jul 2026
Jul 2026
Tracked listings
74 across 43 products
91 across 37 products

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

Certificates on file

Detail
peptidology
Skye Peptides
COA coverage
Broad
Limited
Certificates
43 current
8 current
Labs
1 named, most from Vanguard Laboratory
2 named, most from MZ Biolabs
Newest test date
Sep 9, 2026
Jun 15, 2026
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

29 products both stock
Product
peptidology
Skye Peptides
5-Amino-1MQ
$1.51
$1.78
BPC-157
$3.64
$4.20
DSIP
$3.54
$9.80
Epitalon
$2.15
$2.58
FOXO4-DRI
$10.80
$11.06
GHK-Cu
$0.54
$0.06
Ipamorelin
$4.25
$6.90
KPV
$4.30
$4.50
Melanotan II
$3.52
$4.90
MOTS-c
$4.15
$2.97
Pinealon
$3.86
$2.82
Selank
$4
$7.90
TB-500
$5.09
$5.16
AOD-9604
$7
$11.50
ARA-290
$5
$5.25
Cartalax
$2.68
$2.36
IGF-LR3
$103.61
$99
Kisspeptin-10
$5.90
$4.90
Livagen
$2.45
$3.45
LL-37
$8.10
$14.80
PE-22-28
$5.12
$6.75

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 peptidology

14 products the other vendor does not list

6 more on the peptidology page

Only at Skye Peptides

8 products the other vendor does not list

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

Questions

Is peptidology cheaper than Skye Peptides?
On the 29 products both vendors stock, peptidology has the lower effective price per mg on 18 and Skye Peptides on 11. 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?
peptidology: broad, newest test dated 2026-09-09. Skye Peptides: limited, newest test dated 2026-06-15. 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.
How do shipping and payment differ between peptidology and Skye Peptides?
peptidology: ships from Scottsdale, AZ. Skye Peptides: accepts card. Details come from each vendor's own site and can change without notice; check the storefront before ordering.

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