Cytokine & Immunoassay ELISA Kits

Human-reactivity sandwich ELISA kits for cytokines and inflammation markers — every kit lists its detection range, sensitivity and validated sample matrix up front, so you can match the kit to your sample before you run the plate.

2149Products

2149 products

Product	Reactivity	Target	Sensitivity	Detection Range	Price	Status	ACTION
Human CRP ELISA Kit EZ-Set™ (DIY Antibody Pairs) Target: CRP	Human	CRP	<60 pg/ml	312 pg/ml - 20,000 pg/ml	$500.00 Regular price $500.00	In Stock at Manufacturer	View
Human CRP (C-Reactive Protein) High sensitive ELISA Kit Target: C-Reactive Protein	Human	C-Reactive Protein	18.75pg/ml	31.25-2000pg/ml	$455.00 Regular price $455.00	In Stock at Manufacturer	View
Human CRP (C-Reactive Protein) ELISA Kit Target: C-Reactive Protein	Human	C-Reactive Protein	0.094ug/ml	0.156-10ug/ml	$520.00 Regular price $520.00	In Stock at Manufacturer	View
Human CRP (C-Reactive Protein) ELISA Kit Target: C-Reactive Protein	Human	C-Reactive Protein	0.094ng/ml	0.156-10ng/ml	$520.00 Regular price $520.00	In Stock at Manufacturer	View
Human CRLF2 (Cardiotrophin-like cytokine factor 2) QuickTest ELISA Kit Target: CRLF2	Human	CRLF2	18.75pg/ml	31.25-2000pg/ml	$585.00 Regular price $585.00	In Stock at Manufacturer	View
Human CRLF2 (Cardiotrophin-like cytokine factor 2) ELISA Kit Target: CRLF2	Human	CRLF2	18.75pg/ml	31.25-2000pg/ml	$520.00 Regular price $520.00	In Stock at Manufacturer	View
Human CRLF1(Cytokine Receptor Like Factor 1) Microsample ELISA Kit Target: CRLF1	Human	CRLF1	0.058 ng/mL	0.16-10 ng/mL	From $416.00 Regular price From $416.00	In Stock at Manufacturer	View
Human CRLF1(Cytokine Receptor Like Factor 1) ELISA Kit Target: CRLF1	Human	CRLF1	0.055 ng/mL	0.16-10 ng/mL	From $416.00 Regular price From $416.00	In Stock at Manufacturer	View
Human CRLF1 (Cytokine Receptor Like Factor 1) ELISA Kit Target: CRLF1	Human	CRLF1	0.094ng/ml	0.156-10ng/ml	$520.00 Regular price $520.00	In Stock at Manufacturer	View
Human CRELD2 ELISA Kit PicoKine® Target: CRELD2	Human	CRELD2	<50 pg/ml	156 pg/ml - 10,000 pg/ml	$499.00 Regular price $499.00	In Stock at Manufacturer	View
Human CR2(Complement Receptor 2) ELISA Kit Target: CR2	Human	CR2	31 pg/mL	78.13-5000 pg/mL	From $416.00 Regular price From $416.00	In Stock at Manufacturer	View
Human CR1(Complement Receptor 1, Erythrocyte) ELISA Kit Target: CR1	Human	CR1	6.5 pg/mL	15.63-1000 pg/mL	From $416.00 Regular price From $416.00	In Stock at Manufacturer	View
Human CR1 (Complement Receptor type 1) ELISA Kit Target: Complement Receptor type 1	Human	Complement Receptor type 1	0.094ng/ml	0.156-10ng/ml	$520.00 Regular price $520.00	In Stock at Manufacturer	View
Human CP-IgM (chlamydia pneumoniae-Immunoglobulin M) ELISA Kit Target: CP-IgM	Human	CP-IgM	Qualitative	Qualitative	$455.00 Regular price $455.00	In Stock at Manufacturer	View
Human CP-IgG (chlamydia pneumoniae-Immunoglobulin G) ELISA Kit Target: CP-IgG	Human	CP-IgG	Qualitative	Qualitative	$455.00 Regular price $455.00	In Stock at Manufacturer	View
Human COVID-19 Spike protein (S2) IgA ELISA Kit Target: COVID-19 Spike protein	Human	COVID-19 Spike protein	0.234ng/ml	0.391-25ng/ml	$520.00 Regular price $520.00	In Stock at Manufacturer	View
Human Complement fragment 5a,C5a ELISA Kit Target: Complement Fragment 5a	Human	Complement Fragment 5a	9.75 pg/ml	39 pg/ml-2500 pg/ml	From $595.00 Regular price From $595.00	In Stock at Manufacturer	View
Human Complement Fragment 4d,C4d ELISA Kit Target: Complement Fragment 4d	Human	Complement Fragment 4d	0.195 ng/mL	0.78 ng/mL-50 ng/mL	From $695.00 Regular price From $695.00	In Stock at Manufacturer	View
Human Complement fragment 4b,C4b ELISA Kit Target: Complement Fragment 4b	Human	Complement Fragment 4b	3.9 ng/mL	15.6 ng/mL-1000 ng/mL	From $695.00 Regular price From $695.00	In Stock at Manufacturer	View
Human Complement Fragment 3d,C3d ELISA Kit Target: Complement Fragment 3d	Human	Complement Fragment 3d	0.039 μg/mL	0.156 μg/mL-10 μg/mL	From $550.00 Regular price From $550.00	In Stock at Manufacturer	View
Human Complement fragment 3c,C3c ELISA Kit Target: Complement Fragment 3c	Human	Complement Fragment 3c	0.156 ng/mL	0.625 ng/mL-40 ng/mL	From $695.00 Regular price From $695.00	In Stock at Manufacturer	View
Human Complement fragment 3b,C3b ELISA Kit Target: Complement Fragment 3b	Human	Complement Fragment 3b	0.78 ng/mL	3.12 ng/mL-200 ng/mL	From $695.00 Regular price From $695.00	In Stock at Manufacturer	View
Human Complement fragment 3a,C3a ELISA Kit Target: Complement Fragment 3a	Human	Complement Fragment 3a	7.81 ng/mL	31.25 ng/mL-2000 ng/mL	From $595.00 Regular price From $595.00	In Stock at Manufacturer	View
Human Complement Factor I, CFI ELISA Kit Target: CFI	Human	CFI	1.42ng/mL	3-900ng/mL	$458.00 Regular price $458.00	In Stock at Manufacturer	View
Human complement factor I(CFI) ELISA Kit Target: CFI	Human	CFI	1.56 ng/mL	6.25 ng/mL-400 ng/mL	From $550.00 Regular price From $550.00	In Stock at Manufacturer	View
Human Complement Factor H-related Protein 5, CFHR5 ELISA Kit Target: CFHR5	Human	CFHR5	0.14ng/mL	0.3-90ng/mL	$458.00 Regular price $458.00	In Stock at Manufacturer	View
Human Complement factor H-related protein 3(CFHR3) ELISA kit Target: CFHR3	Human	CFHR3	7.8 ng/mL	31.25 ng/mL-2000 ng/mL	From $695.00 Regular price From $695.00	In Stock at Manufacturer	View
Human Complement Factor H-related Protein 2, CFHR2 ELISA Kit Target: CFHR2	Human	CFHR2	1.29ng/ml	3-900ng/ml	$458.00 Regular price $458.00	In Stock at Manufacturer	View
Human Complement factor H-related protein 2(CFHR2) ELISA kit Target: CFHR2	Human	CFHR2	1.56 ng/mL	6.25 ng/mL-400 ng/mL	From $695.00 Regular price From $695.00	In Stock at Manufacturer	View
Human Complement factor H-related protein 1(CFHR1) ELISA kit Target: CFHR1	Human	CFHR1	12.5 ng/mL	25 ng/mL-1600 ng/mL	From $695.00 Regular price From $695.00	In Stock at Manufacturer	View
Human complement factor H,CFH ELISA Kit Target: Complement Factor H	Human	Complement Factor H	7.8 ng/ml	31.2 ng/mL-2000 ng/mL	From $695.00 Regular price From $695.00	In Stock at Manufacturer	View
Human Complement Factor H, CFH ELISA Kit Target: CFH	Human	CFH	4.88ng/ml	10-3000ng/ml	$458.00 Regular price $458.00	In Stock at Manufacturer	View
Human Complement Factor H Related Protein 3, CFHR3 ELISA Kit Target: CFHR3	Human	CFHR3	9.92ng/mL	20-4500ng/mL	$458.00 Regular price $458.00	In Stock at Manufacturer	View
Human Complement Factor D, CFD ELISA Kit Target: CFD	Human	CFD	0.21ng/ml	0.5-100ng/ml	$458.00 Regular price $458.00	In Stock at Manufacturer	View
Human Complement Factor B, CFB ELISA Kit Target: CFB	Human	CFB	4.19μg/ml	8-2000ug/ml	$458.00 Regular price $458.00	In Stock at Manufacturer	View
Human Complement Component C8 Gamma Chain, C8G ELISA Kit Target: C8G	Human	C8G	0.25ng/ml	0.5-150ng/ml	$458.00 Regular price $458.00	In Stock at Manufacturer	View

About Cytokine & Immunoassay ELISA Kits

Cytokines sit at pg/mL, they are labile, and they behave differently in serum, plasma and supernatant — so the same sample can give two different numbers. Every human-reactivity kit here states its detection range, lower limit of detection, validated sample matrix and assay format on its product page, so you can match the kit to your sample and your expected cytokine level before you run the plate. Use the filters to narrow by target, sensitivity and sample type.

Choosing a cytokine ELISA: standard vs high-sensitivity vs antibody-pair

Most cytokine irreproducibility is a handling, matrix and sensitivity problem, not a biology problem. These three formats trade sensitivity, hands-on effort and flexibility differently. Match the format to how low your cytokine sits and to the matrix you actually collected.

Decision dimension	Standard sandwich ELISA	High-sensitivity ELISA	Antibody-pair / DIY set
Best when the target is	Induced / stimulated cytokine at readily detectable levels	Low basal cytokine near the detection limit (e.g. resting-serum IL-6)	Any level, when you want to build and tune your own plate
Typical sensitivity (LLOD)	Low pg/mL (often < 1 pg/mL)	Down to ~0.04–0.11 pg/mL (kit-dependent)	Depends on the pair and coating you set up
Typical detection range	~10–100 pg/mL (kit-dependent)	Sub-pg/mL to low pg/mL	User-defined by standard curve
Validated matrix	Serum, plasma (heparin / EDTA / citrate), cell-culture supernatant	Serum, plasma, supernatant — matrix stated per kit	Set by your own validation
Format & hands-on time	Pre-coated plate, sandwich, ~2–4 h	Pre-coated plate, sandwich, ~2–4 h	Coat-your-own; longer setup, most flexible
Best for	Routine cytokine quantitation with a known signal	Defending a small, real change in a low-abundance cytokine	Assay development, custom throughput, cost at scale
Watch-outs	May not reach a basal cytokine near zero	Confirm the stated LLOD covers your lowest expected value	Requires in-house optimisation and QC

How to read this table. Pick on the stated number, not the general category. If your cytokine sits close to zero in resting samples — the classic IL-6 case — a kit that states a sub-pg/mL limit lets you call a real change a standard kit would miss. Circulating IL-6 carries a month-to-month CV of roughly 27–31% in healthy subjects, so only a change of about 60% (twice the variation) should be read as a true shift — run duplicates and keep a known control on every plate.

Browsing wider: see High-Sensitivity ELISA Kits for the lowest detection limits across all targets, Microsample ELISA when sample volume is tight, and Immunology ELISA Kits or Mouse / Murine ELISA Kits for other species and the full immunoassay catalog.

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Cytokine & Immunoassay ELISA Kits

About Cytokine & Immunoassay ELISA Kits

Choosing a cytokine ELISA: standard vs high-sensitivity vs antibody-pair

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