PRO
Harry Lightfoot
#1 UK Crossfit
60 Servings | Stress & Relaxation Support
"Took Ashwagandha for the first time, noticed it's helping in quick muscle recovery and restful sleep."
Helps reduce stress and support relaxation
Ashwagandha is an adaptogen that helps the body manage stress and promote a sense of calm.
Supports energy and overall wellbeing
May help improve energy levels, focus, and physical performance.
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£14.99
KSM-66®ASHWAGANDHA
KSM-66® Ashwagandha is a branded, full-spectrum extract, with the highest concentration of all major root only extracts available on the market today.
It is produced using a unique proprietary extraction process, based on “Green Chemistry” principles, without using alcohol or any other chemical solvent.
Clinically studied KSM-66 extract
Supports stress and relaxation
Helps improve focus and mood
Supports energy and performance
KSM-66 Ashwagandha
500mg
Detailed Breakdown
| Nutrient | Per 1 Capsule Serving |
|---|---|
| KSM-66 Ashwagandha (root extract) | 600mg |
| (withania somnifera) (St. to 5% withanolides) |
Ingredients
KSM-66 Ashwagandha root extract, vegetable capsule shell (hydroxpropyl Methylcellulose), Flowing Agent (Magnesium Stearate), Anti-Caking Agent (Silicon Dioxide).
!
Allergen Advice
No known allergens. Manufactured in a GMP Certified factory that handles fish, celery, soya, nuts, wheat and gluten.
✓
Vegan Friendly✓
GMP✓
Made in the UK1
Remove Lid
Take out 1 capsules
2
1 Capsules
Drink with a small glass of water
3
Replace Lid
Store in a cool, dark place
Water
Take capsule with a glass of water
ZM Pro
Stack with ZM Pro for ultimate recovery
Recommended Timing
Pro Tip
Take ashwagandha 30–60 minutes before bedtime to help support relaxation and a more restful night’s sleep.
Standard Delivery
2-3 Working Days - £1.99
Free over £20Express Delivery
Next Working Day
£2.9930-Day Money Back Guarantee
Train with confidence. If you don't feel the difference, return the unused portion for a full refund.
Secure Payment Options
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Pay in 3 interest-free installments of £6.00. No fees.
EFECTIV® KSM-66® Ashwagandha | 60 Servings
60 Servings / 60 Capsules
£17.99
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Proven by Performance
The Science Behind The Formula
By working with top manufacturers in the UK, we're able to source and use the highest quality ingredients and flavours, with all of our products meeting the highest UK food safety standards.
Science Backed Formula
Our products are formulated to work, using clinically studied dosages.
Maximum Effectiveness
No fillers, no guesswork, just clinically supported ingredients that deliver.
"Bioavailability is the key to effective sports nutrition."
m. bowering, expert formulator
The Efectiv Difference
Why athletes choose us over the competition.
EFECTIV
Other brands
Type
Patented, concentrated extract
Whole root powder or generic extract
Potency
Standardized to 5% withanolides (active compounds)
Potency varies between products
Research
Researched and backed up by clinical studies
Limited or unspecified research
Consistency
Same strength in every batch
strength can vary widely
World Class Performance
Trusted by Champions.
50+ Athletes
+30
Brazillian JiuJitsu (BJJ)
Becky Mayo
Mountaineering
Chris Tomlinson
Bodybuilding
Lewis Barker
Bodybuilding
Abou Konate
crossfit•hyrox•bodybuilding•crossfit•hyrox•bodybuilding•
Transparent Label
Inside the Scoop.
We don't hide behind proprietary blends. Every ingredient is listed with its exact dosage so you know exactly what you're fueling your body with.
600mg
KSM-66 Ashwagandha
Powerful Adaptogen
Ashwagandha is a traditional herbal root used in Chinese medicine for centuries to support stress resilience, energy, and overall wellbeing.
Lab Verified
Certificate of Analysis
We believe in radical transparency. Every batch is tested by an independent ISO 17025 accredited laboratory for banned substances and protein content.
Open CertificateProduct
EFECTIV® KSM-66® Ashwagandha | 60 Servings
Status
PASS
Heavy Metals
Not Detected
Microbiology
Pass
Protein Content
25.2g / 25g
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Frequently Asked Questions
KSM-66 is a premium, highly concentrated extract of ashwagandha root, designed to deliver consistent potency and high levels of active compounds.
KSM-66 is a standardised, clinically studied extract, meaning it offers more reliable potency, better absorption, and proven benefits compared to generic ashwagandha powders.
KSM-66 may help reduce stress, support sleep quality, improve focus, and aid recovery from exercise.