C-Peptide

Byproduct of insulin production

2/22Providers
Metabolic HealtCategory
0.5-2.0 ng/mLReference

Limited Availability

2 providers include this

Category

Metabolic Health / Glucose

Reference Range

0.5-2.0 ng/mL

What is C-Peptide?

Byproduct of insulin production

Why It Matters

Measures how much insulin your pancreas produces. Unlike insulin tests, not affected by insulin injections. Distinguishes Type 1 from Type 2 diabetes. Indicates beta cell function.

Reference Range: 0.5-2.0 ng/mL

Which Providers Test C-Peptide?

Function
Included in panel
Vitality Elite
Included in panel

Full Provider Comparison

ProviderIncludesAnnual CostBiomarkers
SuperpowerSuperpower—$199100+ (150 with ratios)
WHOOP Advanced LabsWHOOP Advanced Labs—$34965
Labcorp OnDemandLabcorp OnDemand—$39830+
Life ExtensionLife Extension—$48640+
EverlywellEverlywell—$46883
Mito HealthMito Health—$349100+
InsideTrackerInsideTracker—$68054
Function HealthFunction Health✓$365100+
Marek Health BaseMarek Health Base—$25065
Marek Health ComprehensiveMarek Health Comprehensive—$49570+
Marek Health CompleteMarek Health Complete—$895100+
Marek Health ExecutiveMarek Health Executive—$1950150+
BlueprintBlueprint—$399100+
Quest HealthQuest Health—$Varies75+
Empirical HealthEmpirical Health—$190100+
Oura Health PanelsOura Health Panels—$9950
SiPhox HealthSiPhox Health—$12560
Hims Labs BaseHims Labs Base—$19950
Hims Labs AdvancedHims Labs Advanced—$499120+
HealthspanHealthspan—$418880+
Vitality Blueprint StandardVitality Blueprint Standard—$37585
Vitality Blueprint EliteVitality Blueprint Elite✓$700129

Ready to Test C-Peptide?

2 providers include this biomarker in their panels

View Top ProviderCompare All Providers

Frequently Asked Questions

What does C-Peptide test for?
C-Peptide is a metabolic health / glucose biomarker. Byproduct of insulin production The normal reference range is 0.5-2.0 ng/mL.
Which providers include C-Peptide?
2 of 22 providers include this test:Function, Vitality Elite.
How often should I test C-Peptide?
For most people, testing 2-4 times per year is recommended to establish baseline levels and track trends. Consult your healthcare provider for personalized recommendations.
What is the optimal range?
The standard reference range is 0.5-2.0 ng/mL. Many functional medicine practitioners recommend tighter optimal ranges for peak health. Your ideal range may vary based on age, sex, and health goals.
Why is C-Peptide important?
Measures how much insulin your pancreas produces. Unlike insulin tests, not affected by insulin injections. Distinguishes Type 1 from Type 2 diabetes. Indicates beta cell function.

Medical Disclaimer

This information is for educational purposes only and is not medical advice. Always consult with a qualified healthcare provider about your specific health needs.