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