Life Extension vs Onnit: Supplements Comparison (2026)
An independent side-by-side comparison of Life Extension and Onnit for supplements shoppers — pricing, hero products, 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 overall — 17% cited vs Onnit 3% across 60 probes.
ChatGPT
Life Extension
1 / 6 probes
17%
AverageOnnit
1 / 6 probes
17%
AveragePerplexity
Life Extension
0 / 6 probes
0%
InvisibleOnnit
0 / 6 probes
0%
InvisibleGemini
Life Extension
0 / 6 probes
0%
InvisibleOnnit
0 / 6 probes
0%
InvisibleClaude
Life ExtensionLeads
3 / 6 probes
50%
ExcellentOnnit
0 / 6 probes
0%
InvisibleCopilot
Life ExtensionLeads
1 / 6 probes
17%
AverageOnnit
0 / 6 probes
0%
InvisibleScale:NoneLowFairStrongExcellent
Probes run hourly; each (engine × query) combo retests every ~3 days.
Pricing
Key Highlights
Life Extension
Product data is being indexed.
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
When to choose Life Extension
Choose Life Extension if its strengths align with what matters most for your purchase. Full guidance populates as Life Extension's product data is indexed.
When to choose Onnit
Choose Onnit if its strengths align with what matters most for your purchase. Full guidance populates as Onnit's product data is indexed.