info@stjohnslabs.com

+44 (0)208 223 3081

USD

Search

Compare
Login / Register
View Cart

Search

All
Primary antibodies
Secondary antibodies
Nanobodies
Kits
- Antibody Pairs
Proteins
Trial Size Antibodies
Blog
Company
- St John's Laboratory Guarantee
- Contact Us

USD
Compare
Login Register

Home
All
Kits
ELISA Kits
Competitive ELISA Kits
Human

All

Refine by

No filters applied

Browse by Host, Application & more Hide Filters Show Filters

Human

Show

Show

Sort By:

Human Ab1-40 (Amyloid Beta Peptide 1-40) Competitive ELISA Kit (STJE0006806)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $591.33 - $807.99

Choose Options
Human Ab1-40 (Amyloid Beta Peptide 1-40) Ready-To-Use Competitive ELISA Kit (STJE0013182)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human Ab1-42 (Amyloid Beta Peptide 1-42) Competitive ELISA Kit (STJE0006809)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $591.33 - $807.99

Choose Options
Human Ab1-42 (Amyloid Beta Peptide 1-42) Ready-To-Use Competitive ELISA Kit (STJE0013185)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human ACTH (Adrenocorticotropic Hormone) Competitive ELISA Kit (STJE0006872)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $543.03 - $736.23

Choose Options
Human ACTH (Adrenocorticotropic Hormone) Ready-To-Use Competitive ELISA Kit (STJE0013248)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $563.73 - $769.35

Choose Options
Human ADH (Antidiuretic Hormone) Competitive ELISA Kit (STJE0002094)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human aEP (Alpha-Endorphin) Competitive ELISA Kit (STJE0006973)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $591.33 - $807.99

Choose Options
Human aEP (Alpha-Endorphin) Ready-To-Use Competitive ELISA Kit (STJE0013349)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human Alpha MSH (Alpha-Melanocyte Stimulating Hormone) Competitive ELISA Kit (STJE0003693)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human aMSH (Alpha-Melanocyte Stimulating Hormone) Competitive ELISA Kit (STJE0007109)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $591.33 - $807.99

Choose Options
Human aMSH (Alpha-Melanocyte Stimulating Hormone) Ready-To-Use Competitive ELISA Kit (STJE0013485)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human Ang-2 (Angiotensin 2) Competitive ELISA Kit (STJE0002131)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human Ang1-7 (Angiotensinogen) Competitive ELISA Kit (STJE0003897)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human Ang1-9 (Angiotensin 1-9) Competitive ELISA Kit (STJE0007120)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $620.31 - $849.39

Choose Options
Human Ang1-9 (Angiotensin 1-9) Ready-To-Use Competitive ELISA Kit (STJE0013496)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $647.91 - $886.65

Choose Options
Human AngI (Angiotensin I) Competitive ELISA Kit (STJE0007122)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $522.33 - $705.87

Choose Options
Human AngI (Angiotensin I) Ready-To-Use Competitive ELISA Kit (STJE0013498)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $543.03 - $736.23

Choose Options
Human AngII (Angiotensin II) Competitive ELISA Kit (STJE0007126)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $522.33 - $705.87

Choose Options
Human AngII (Angiotensin II) Ready-To-Use Competitive ELISA Kit (STJE0013502)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $543.03 - $736.23

Choose Options
Human AngIII (Angiotensin III) Competitive ELISA Kit (STJE0007130)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $570.63 - $777.63

Choose Options
Human AngIII (Angiotensin III) Ready-To-Use Competitive ELISA Kit (STJE0013506)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $595.47 - $812.13

Choose Options
Human AP13 (Apelin 13) Competitive ELISA Kit (STJE0007196)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human AP13 (Apelin 13) Ready-To-Use Competitive ELISA Kit (STJE0013572)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $643.77 - $879.75

Choose Options
Human AP17 (Apelin 17) Competitive ELISA Kit (STJE0007199)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $642.39 - $878.37

Choose Options
Human AP17 (Apelin 17) Ready-To-Use Competitive ELISA Kit (STJE0013575)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $668.61 - $919.77

Choose Options
Human AP36 (Apelin 36) Competitive ELISA Kit (STJE0007201)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human AP36 (Apelin 36) Ready-To-Use Competitive ELISA Kit (STJE0013577)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $643.77 - $879.75

Choose Options
Human APLN (Apelin) Competitive ELISA Kit (STJE0002239)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human B2M (Beta-2-microglobulin) Competitive ELISA Kit (STJE0003516)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human bEP (Beta-Endorphin) Competitive ELISA Kit (STJE0007467)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $591.33 - $807.99

Choose Options
Human bEP (Beta-Endorphin) Ready-To-Use Competitive ELISA Kit (STJE0013843)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human Beta-CTx (Beta Crosslaps) Competitive ELISA Kit (STJE0002623)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human Beta-EP (Beta-Endorphin) Competitive ELISA Kit (STJE0002322)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human BK (Bradykinin) Competitive ELISA Kit (STJE0019878)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human C-Peptide (C-Peptide) Competitive ELISA Kit (STJE0007565)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $485.07 - $654.81

Choose Options
Human C-Peptide (C-Peptide) Ready-To-Use Competitive ELISA Kit (STJE0013941)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $505.77 - $682.41

Choose Options
Human CCK (Cholecystokinin) Competitive ELISA Kit (STJE0007742)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $591.33 - $807.99

Choose Options
Human CCK (Cholecystokinin) Ready-To-Use Competitive ELISA Kit (STJE0014117)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human CCK8 (Cholecystokinin 8, Octapeptide) Competitive ELISA Kit (STJE0007747)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human CCK8 (Cholecystokinin 8, Octapeptide) Ready-To-Use Competitive ELISA Kit (STJE0014122)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $643.77 - $879.75

Choose Options
Human CGa (Chorionic Gonadotropin Alpha Polypeptide) Competitive ELISA Kit (STJE0007907)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human CGa (Chorionic Gonadotropin Alpha Polypeptide) Ready-To-Use Competitive ELISA Kit (STJE0014282)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $643.77 - $879.75

Choose Options
Human CGRP (Calcitonin Gene Related Peptide) Competitive ELISA Kit (STJE0007910)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $543.03 - $736.23

Choose Options
Human CGRP (Calcitonin Gene Related Peptide) Ready-To-Use Competitive ELISA Kit (STJE0014285)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $563.73 - $769.35

Choose Options
Human Cortisol (Cortisol) Competitive ELISA Kit (STJE0001911)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human Cortisol (Cortisol) Competitive ELISA Kit (STJE0006722)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human CPLX2 (Complexin 2) Competitive ELISA Kit (STJE0008105)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $642.39 - $878.37

Choose Options

Human Ab1-40 (Amyloid Beta Peptide 1-40) Competitive ELISA Kit (STJE0006806)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $591.33 - $807.99

Choose Options
Human Ab1-40 (Amyloid Beta Peptide 1-40) Ready-To-Use Competitive ELISA Kit (STJE0013182)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human Ab1-42 (Amyloid Beta Peptide 1-42) Competitive ELISA Kit (STJE0006809)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $591.33 - $807.99

Choose Options
Human Ab1-42 (Amyloid Beta Peptide 1-42) Ready-To-Use Competitive ELISA Kit (STJE0013185)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human ACTH (Adrenocorticotropic Hormone) Competitive ELISA Kit (STJE0006872)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $543.03 - $736.23

Choose Options
Human ACTH (Adrenocorticotropic Hormone) Ready-To-Use Competitive ELISA Kit (STJE0013248)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $563.73 - $769.35

Choose Options
Human ADH (Antidiuretic Hormone) Competitive ELISA Kit (STJE0002094)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human aEP (Alpha-Endorphin) Competitive ELISA Kit (STJE0006973)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $591.33 - $807.99

Choose Options
Human aEP (Alpha-Endorphin) Ready-To-Use Competitive ELISA Kit (STJE0013349)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human Alpha MSH (Alpha-Melanocyte Stimulating Hormone) Competitive ELISA Kit (STJE0003693)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human aMSH (Alpha-Melanocyte Stimulating Hormone) Competitive ELISA Kit (STJE0007109)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $591.33 - $807.99

Choose Options
Human aMSH (Alpha-Melanocyte Stimulating Hormone) Ready-To-Use Competitive ELISA Kit (STJE0013485)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human Ang-2 (Angiotensin 2) Competitive ELISA Kit (STJE0002131)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human Ang1-7 (Angiotensinogen) Competitive ELISA Kit (STJE0003897)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human Ang1-9 (Angiotensin 1-9) Competitive ELISA Kit (STJE0007120)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $620.31 - $849.39

Choose Options
Human Ang1-9 (Angiotensin 1-9) Ready-To-Use Competitive ELISA Kit (STJE0013496)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $647.91 - $886.65

Choose Options
Human AngI (Angiotensin I) Competitive ELISA Kit (STJE0007122)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $522.33 - $705.87

Choose Options
Human AngI (Angiotensin I) Ready-To-Use Competitive ELISA Kit (STJE0013498)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $543.03 - $736.23

Choose Options
Human AngII (Angiotensin II) Competitive ELISA Kit (STJE0007126)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $522.33 - $705.87

Choose Options
Human AngII (Angiotensin II) Ready-To-Use Competitive ELISA Kit (STJE0013502)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $543.03 - $736.23

Choose Options
Human AngIII (Angiotensin III) Competitive ELISA Kit (STJE0007130)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $570.63 - $777.63

Choose Options
Human AngIII (Angiotensin III) Ready-To-Use Competitive ELISA Kit (STJE0013506)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $595.47 - $812.13

Choose Options
Human AP13 (Apelin 13) Competitive ELISA Kit (STJE0007196)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human AP13 (Apelin 13) Ready-To-Use Competitive ELISA Kit (STJE0013572)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $643.77 - $879.75

Choose Options
Human AP17 (Apelin 17) Competitive ELISA Kit (STJE0007199)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $642.39 - $878.37

Choose Options
Human AP17 (Apelin 17) Ready-To-Use Competitive ELISA Kit (STJE0013575)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $668.61 - $919.77

Choose Options
Human AP36 (Apelin 36) Competitive ELISA Kit (STJE0007201)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human AP36 (Apelin 36) Ready-To-Use Competitive ELISA Kit (STJE0013577)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $643.77 - $879.75

Choose Options
Human APLN (Apelin) Competitive ELISA Kit (STJE0002239)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human B2M (Beta-2-microglobulin) Competitive ELISA Kit (STJE0003516)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human bEP (Beta-Endorphin) Competitive ELISA Kit (STJE0007467)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $591.33 - $807.99

Choose Options
Human bEP (Beta-Endorphin) Ready-To-Use Competitive ELISA Kit (STJE0013843)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human Beta-CTx (Beta Crosslaps) Competitive ELISA Kit (STJE0002623)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human Beta-EP (Beta-Endorphin) Competitive ELISA Kit (STJE0002322)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human BK (Bradykinin) Competitive ELISA Kit (STJE0019878)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human C-Peptide (C-Peptide) Competitive ELISA Kit (STJE0007565)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $485.07 - $654.81

Choose Options
Human C-Peptide (C-Peptide) Ready-To-Use Competitive ELISA Kit (STJE0013941)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $505.77 - $682.41

Choose Options
Human CCK (Cholecystokinin) Competitive ELISA Kit (STJE0007742)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $591.33 - $807.99

Choose Options
Human CCK (Cholecystokinin) Ready-To-Use Competitive ELISA Kit (STJE0014117)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human CCK8 (Cholecystokinin 8, Octapeptide) Competitive ELISA Kit (STJE0007747)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human CCK8 (Cholecystokinin 8, Octapeptide) Ready-To-Use Competitive ELISA Kit (STJE0014122)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $643.77 - $879.75

Choose Options
Human CGa (Chorionic Gonadotropin Alpha Polypeptide) Competitive ELISA Kit (STJE0007907)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $616.17 - $843.87

Choose Options
Human CGa (Chorionic Gonadotropin Alpha Polypeptide) Ready-To-Use Competitive ELISA Kit (STJE0014282)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $643.77 - $879.75

Choose Options
Human CGRP (Calcitonin Gene Related Peptide) Competitive ELISA Kit (STJE0007910)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $543.03 - $736.23

Choose Options
Human CGRP (Calcitonin Gene Related Peptide) Ready-To-Use Competitive ELISA Kit (STJE0014285)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $563.73 - $769.35

Choose Options
Human Cortisol (Cortisol) Competitive ELISA Kit (STJE0001911)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human Cortisol (Cortisol) Competitive ELISA Kit (STJE0006722)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Human CPLX2 (Complexin 2) Competitive ELISA Kit (STJE0008105)

Applications :

ELISA

Reactivity :

Human

MSRP:

Was:

Now: $642.39 - $878.37

Choose Options

48 of 128 Items

1
2
3

!

Footer Start

Information

about us
distributors
privacy policy
terms & conditions
blog

Customer service

contact us
shipping
FAQ
antibody troubleshooting

My Account

my account
order history

Company

St John's Laboratory Ltd
Knowledge Dock Business Centre
University Way
London
E16 2RD, UK

Subscribe

newsletter.subscribe_intro

Email Address

Receive discounts, product insights and technical resources as a subscriber.

© 2026 Product Ecommerce St John's Laboratory Ltd All Rights Reserved.

Terms
Privacy
Cookies