Onnit vs Life Extension: Supplements Comparison (2026)

An independent side-by-side comparison of Onnit and Life Extension for supplements buyers — pricing, features, integrations, and how often each is cited by major AI engines.

AI Citation Scorecard

How often each is cited by major AI engines when buyers ask supplements questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.

Life Extension leads overall17% cited vs Onnit 3% across 60 probes.
ChatGPT
Onnit
1 / 6 probes
17%
Average
Life Extension
1 / 6 probes
17%
Average
Perplexity
Onnit
0 / 6 probes
0%
Invisible
Life Extension
0 / 6 probes
0%
Invisible
Gemini
Onnit
0 / 6 probes
0%
Invisible
Life Extension
0 / 6 probes
0%
Invisible
Claude
Onnit
0 / 6 probes
0%
Invisible
Life ExtensionLeads
3 / 6 probes
50%
Excellent
Copilot
Onnit
0 / 6 probes
0%
Invisible
Life ExtensionLeads
1 / 6 probes
17%
Average
Scale:NoneLowFairStrongExcellent

Probes run hourly; each (engine × query) combo retests every ~3 days.

Pricing

Onnit
Starting price
$79.95
Free tier
onnit.com
Life Extension
Starting price
Free tier
lifeextension.com

Key Features

Onnit
  • Cognitive support for memory
  • Improves focus & processing speed
  • Day & night nutrient packs
  • Promotes muscle recovery
  • Supports a healthy gut ecosystem
  • Unlocks endurance during workouts
  • Helps manage daily stress
  • Enhances mental performance
Life Extension

Feature data is being indexed.

When to choose Onnit

Choose Onnit if your team prioritizes its strengths over Life Extension's. Full guidance populates as Onnit's feature data is indexed.

When to choose Life Extension

Choose Life Extension if your team prioritizes its strengths over Onnit's. Full guidance populates as Life Extension's feature data is indexed.

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