PRO
Kyle Raison
PCA Pro
30 Servings | Natural Muscle Builder
"I am finding that it genuinely helps with my recovery, lean muscle building and overall body fat management. I can feel the additional strength and see the volume effect."
Boosts muscle strength and power
PeptiStrong® was shown in two clinical published studies to improve power output by up to 130%(2) and increase performance by up to 54%(1)
Train more, recover faster
PeptiStrong® was shown to increase strength recovery by 47%(1,2), reduce muscle soreness and return to higher than baseline strength levels after fatigue
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for Next Day Delivery
£39.99
EFECTIV® Build.AI
EFECTIV BUILD.AI is the new standard in natural muscle building supplementation. BUILD.AI combines popular natural muscle building ingredients Turkesterone and Epicatechin with newly AI discovered PeptiStrong®.
BUILD.AI was developed for natural athletes and bodybuilders who are striving to take their training, recovery & physique to the next level.
Increases MPS
Increases Power Output
Speeds up Recovery
Reduces Inflammation
PeptiStrong®
2400mg
Ajuga Turkestanica
500mg
Epicatechin
200mg
Detailed Breakdown
| Nutrient | 4 Capsules |
|---|---|
| PeptiStrong® (Peptides from hydrolyzed fava bean protein) | 2400mg |
| Ajuga Turkestanica Extract (st. to 10% Turkesterone) | 500mg |
| Epicatechin (st. to 90%) | 200mg |
Ingredients
PeptiStrong®, Ajuga Turkestanica Extract, Epicatechin, Vegetable Capsule Shell, Anti-Caking Agent (Magnesium Stearate).
!
Allergen Advice
No known allergens. Manufactured in a GMP Certified factory that handles fish, celery, soya, nuts, wheat and gluten.
✓
GMP✓
Made in UK✓
Vegan Friendly1
Remove Lid
Take out 4 capsules
2
4 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
Creatine
Stack with creatine for a performance boost
Recommended Timing
Pro Tip
Take alongside your post-workout shake/meal to boost muscle protein synthesis
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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Klarna.
Pay in 3 interest-free installments of £10.00. No fees.
EFECTIV® BUILD.AI (with PeptiStrong®) | 30 Servings | Muscle Builder
30 Servings / 120 Capsules
£29.99
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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
Innovative Formula
Transaprent Dosaging
Desgned For Athletes
3rd Party Testing
Price per Serving
£1.00
£1.50
World Class Performance
Trusted by Champions.
50+ Athletes
+30
Strongman
Chris Harrison
Bodybuilding
Abou Konate
Bodybuilding
Lewis Barker
Bodybuilding
Kyle Raison
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.
2400mg
PeptiStrong®
AI Discovered Natural Peptide
5 Clinical Benefits
500mg
Ajuga Turkestanica Extract
50mg Active Turkesterone
Ecdysteroid
200mg
Epicatechin
Bioactive Flavanoid
Found in Cocoa
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® BUILD.AI (with PeptiStrong®) | 30 Servings | Muscle Builder
Status
PASS
Heavy Metals
Not Detected
Microbiology
Pass
Protein Content
25.2g / 25g
RECOMMENDATIONS
Pairs Well With
BESTSELLER
Strength & Performance
✓
5g Creatine Monohydrate
✓
3rd Party Tested
£14.99
NEW
BESTSELLER
Real Results. Real People.
Join the community on Instagram @EfectivAthletes
Frequently Asked Questions
PeptiStrong® helps support muscle growth, strength, recovery, and reduced muscle breakdown, especially during training.
It works by helping to stimulate muscle protein synthesis and reduce muscle degradation, supporting better training outcomes.
Yes — PeptiStrong® supports muscle function, but adequate protein intake is still essential.