Known Nutrition Shilajit vs Life Extension Ashwagandha
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Known Nutrition Shilajit and Life Extension Ashwagandha.
Last verified: 13 Mar 2026 · Based on 34 reviews
Our Verdict: Known Nutrition Shilajit or Life Extension Ashwagandha?
Known Nutrition wins on both score (76 vs 75) and price (£11.24 vs £24). Pick Life Extension instead if chronic stress or sleep quality is your priority — its 81 ingredient rating justifies the premium.
— AIScored Editorial Team
Known Nutrition Shilajit scores 76/100 vs Life Extension Ashwagandha at 75.0/100. Known Nutrition Shilajit wins on effectiveness, value for money, certifications. Life Extension Ashwagandha is stronger on ingredient quality and side effects.
Known Nutrition Shilajit vs Life Extension Ashwagandha: What Does the Data Say?
These two products share an ingredient but do different jobs. Known Nutrition's gummies combine shilajit (800mg fulvic acid per serving) with 300mg of ashwagandha in a chewable format; Life Extension's capsules contain ashwagandha extract only. The 800mg fulvic acid dose is genuinely well-standardised for shilajit. The ashwagandha, though, is the weak point: 300mg falls short of the 600mg KSM-66 dose used in most clinical trials. Life Extension uses a standardised extract with consistent withanolide content, which is what the evidence actually relates to.
Known Nutrition at £11.24 suits someone new to adaptogens who wants easy daily compliance and has mild fatigue rather than chronic stress. Reviewers consistently report reduced tiredness, and it earned 77/100 for effectiveness. Life Extension at £24.00 scored 81/100 for ingredient quality — the highest of the two — and is the better pick if stress, cortisol, or sleep quality are the real concern. The price difference is hard to ignore, but you're getting a more targeted formulation.
Glucose syrup and sucrose lead the ingredients list in the gummies, so the sugar load is real if you're monitoring intake. Known Nutrition carries ISO, GMP, and BRC certifications and is third-party tested. Life Extension is not third-party verified, which is a gap at £24. Swallow the capsules whole — the contents are reportedly very bitter if chewed or opened.
How Do the Scores Compare?
Shilajit Gummies with 50% F...
Known Nutrition
|
Life Extension Ashwagandha ...
Life Extension
|
|
|---|---|---|
| Overall Score | 76 | 75.0 |
| Effectiveness |
77.0/100
Best
|
74.0/100 |
| Ingredient Quality | 64.0/100 |
81.0/100
Best
|
| Value for Money |
70.0/100
Best
|
62.0/100 |
| Side Effects | 79.0/100 |
84.0/100
Best
|
| Certifications |
100/100
Best
|
76.0/100 |
| Best Price |
£11.24
Known Nutrition →
Cheapest
|
£24.00 Amazon UK → |
| Form | gummies | N/A |
| Dose | None | N/A |
| Third-Party Tested | ✓ Yes | ✗ No |
| Reviews Analysed | 16 | 18 |
Shilajit Gummies with 50% Fulvic...
Pros
- ✓Consistent energy and fatigue-reduction reported across nearly all reviewers
- ✓High fulvic acid concentration (800mg per serving) — a notably standardised shilajit dose
- ✓Strong certification stack: ISO, GMP, BRC, third-party tested
- ✓Positive taste feedback — blackcurrant flavour makes daily compliance easy
Cons
- ✗Glucose syrup and sucrose are the first two ingredients — meaningful sugar load per daily dose
- ✗Ashwagandha at 300mg is below the 600mg KSM-66 dose used in most stress-reduction trials
- ✗Vitamin B12 as cyanocobalamin — less bioavailable form than methylcobalamin
- ✗All 16 reviews sourced from the brand's own website — no independent retailer or Amazon data to cross-check
Best For
Life Extension Ashwagandha Extra...
Pros
- ✓Reputable brand with decades of GMP-compliant manufacturing and quality control
- ✓Standardised extract ensures consistent active withanolide content per capsule
- ✓Strong clinical evidence base for stress reduction, cortisol modulation, and sleep improvement
- ✓Life Extension known for research-backed formulations and transparent labelling
Cons
- ✗Capsule contents have a notably bitter, unpleasant taste if opened or chewed
- ✗Premium brand pricing relative to generic ashwagandha alternatives
- ✗60-capsule count requires frequent repurchasing at higher daily doses
- ✗Some brand-level customer service complaints noted in reviews
Best For
Score Breakdown: Known Nutrition Shilajit vs Life Extension Ashwagandha
Known Nutrition's Shilajit Gummies deliver 1,600mg of Himalayan Shilajit (50% Fulvic Acid) alongside 300mg Ashwagandha, B vitamins, and Zinc in a vegan blackcurrant-flavoured gummy.
What are the key differences?
Frequently Asked Questions
Which is better, Known Nutrition Shilajit or Life Extension Ashwagandha? ▼
Is Known Nutrition Shilajit worth the price compared to Life Extension Ashwagandha? ▼
Which has fewer side effects? ▼
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Disclaimer: AIScored provides data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.
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