Vendors

Kalyx Labs vs Tetrava Labs

Across the 28 products both vendors stock, Kalyx Labs has the lower effective price per mg on 20 and Tetrava Labs on 7, and 1 prices the same to the cent. Kalyx Labs lists 54 tracked listings across 29 products; Tetrava Labs lists 101 across 52. 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.

Kalyx Labs

Kalyx Labs is a US research-peptide vendor that lists 43 injectable peptides, 1 capsule and 1 nasal spray.

Price vs market median
7% above market
Tracked catalog
29 products · $$$
Cheaper on
20 of 28 shared
COA coverage
None found
Visit Kalyx Labs
Tetrava Labs

Tetrava Labs is a research-peptide vendor that lists 99 injectable peptides, 1 capsule and 2 nasal sprays.

Price vs market median
16% above market
Tracked catalog
52 products · $$$
Cheaper on
7 of 28 shared
COA coverage
None found
Visit Tetrava Labs

Vendor facts

Detail
Kalyx Labs
Tetrava Labs
Sells
43 vials, 1 capsules, 1 sprays
99 vials, 1 capsules, 2 sprays
Location
US
—
In transit
5-8 days
—
Payment
card
—
Storefront
WooCommerce
—
Tracked by us since
Aug 2026
—
Tracked listings
54 across 29 products
101 across 52 products

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

Certificates on file

Detail
Kalyx Labs
Tetrava Labs
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

28 products both stock
Product
Kalyx Labs
Tetrava Labs
5-Amino-1MQ
$1.20
$4.90
BPC-157
$6
$6.90
FOXO4-DRI
$15
$14.90
GHK-Cu
$0.70
$0.59
Ipamorelin
$5.50
$5.90
KPV
$5
$5.50
MOTS-c
$2.13
$5
NAD+
$0.13
$0.15
PT-141
$4.50
$5.90
Retatrutide
$5.80
$9.09
Selank
$5
$5
Semax
$6.50
$5.50
SS-31
$2.90
$3.98
TB-500
$9
$8.90
Tesamorelin
$11
$11.95
Tirzepatide
$3.08
$8.58
AOD-9604
$12
$9.50
ARA-290
$4
$5.90
Cagrilintide
$14
$14.90
Glutathione
$0.05
$0.07
IGF-LR3
$80
$150
LL-37
$7
$13.80

Showing 24 of 28 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 Kalyx Labs

1 product the other vendor does not list

Only at Tetrava Labs

24 products the other vendor does not list

16 more on the Tetrava Labs page

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

Questions

Is Kalyx Labs cheaper than Tetrava Labs?
On the 28 products both vendors stock, Kalyx Labs has the lower effective price per mg on 20 and Tetrava Labs on 7, 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?
Kalyx Labs: none found. Tetrava 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.
How do shipping and payment differ between Kalyx Labs and Tetrava Labs?
Kalyx Labs: 5-8 days in transit, accepts card. Tetrava Labs: we have not recorded shipping or payment details yet. Details come from each vendor's own site and can change without notice; check the storefront before ordering.

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