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REIN FOUNDATION · KSM-66® ASHWAGANDHA

Foundation KSM-66®

Foundation KSM-66®

5.0
Rated 5.0 out of 5 stars
5.0 / 5

Daily resilience starts here.

Clinically studied KSM-66® Ashwagandha, a full-spectrum root extract designed to support everyday stress resilience and recovery. 500mg per capsule, one or two daily, made in the UK.

  • Stress Response Support
  • Deep Recovery & Sleep Quality
  • Adaptive Regulation
£27.00
£27.00
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Taxes included. Shipping calculated at checkout.

The REIN 90 Days
Protocol™

Free gift
with every subscription

What's inside

  1. 01 · Days 1–30 Set the routine. When to take it, fixed once. After that, there's nothing to decide.
  2. 02 · Days 31–60 Hold it. The habits around the formula, kept simple: sleep, training and recovery.
  3. 03 · Days 61–90 Review it. A clear way to look back over 90 days and decide what comes next.

A 45-page PDF guide: sleep, training, stress, the numbers worth knowing and your 90-day plan. Sent by email when your subscription starts.

500mg per capsule · 90 capsules: 90 days at one capsule a day, 45 days at two · Free UK delivery on your first order, Royal Mail Tracked 48

  • Made in the UK
  • GMP certified
  • BRCGS certified
  • 60-day money-back guarantee
Why men choose it
  • Stress resilience, by designKSM-66® Ashwagandha is designed to support everyday stress resilience and recovery.
  • A research dose, on the label500mg of full-spectrum root extract per capsule, one or two daily.
  • One ingredient, nothing undisclosedA single named ingredient, made in the UK and BRCGS certified.

Why subscribe?

15% off every order and free UK delivery for life. Modify or cancel any time.

View full details
500mg
KSM-66® per capsule
1–2
Capsules daily
1
Ingredient, full-spectrum root extract
UK
Made in the UK, BRCGS certified
60 days
Money-back guarantee

WHO IT’S FOR

Built for days that ask more of you.

If one of these sounds familiar, here is what Foundation is built to do about it.

01

PRESSURE THAT FOLLOWS YOU HOME

The working day ends. The work doesn’t leave with you.

PRESSURE THAT FOLLOWS YOU HOME

The usual fix
Pushing through, and hoping the weekend resets it.
REIN
KSM-66® Ashwagandha is designed to support everyday stress resilience and recovery.

02

NO ROOM TO RECOVER

Early flights, late finishes, short nights, repeat.

NO ROOM TO RECOVER

The usual fix
Catching up at the weekend.
REIN
Foundation is designed to support quality sleep and recovery.

03

A SHELF OF BOTTLES

A shelf of bottles that’s hard to keep track of, and expensive.

A SHELF OF BOTTLES

The usual fix
Adding one more.
REIN
One ingredient at a research dose, 500mg per capsule, with the dose on the label.

REIN FOUNDATION · KSM‑66®

The foundation of your performance.

Clinically studied KSM-66® Ashwagandha: a full-spectrum extract designed to support everyday stress resilience and recovery, and to help you stay balanced and composed under pressure.

01 · THE INGREDIENT Ashwagandha root

KSM-66® is a full-spectrum extract of ashwagandha (Withania somnifera) root.

02 · THE STRESS RESPONSE Designed for pressure

Chronic stress raises cortisol, the body’s main stress hormone. KSM-66® is designed to support everyday stress resilience and recovery.

03 · THE DOSE Research-dosed, on the label

500mg per capsule. One or two capsules daily: 500mg to 1,000mg.

Pure performance. Total control.

Take the reins of your foundation

FORMULA

One ingredient, at a clinical dose.

One named ingredient, a stated dose, and nothing in an undisclosed blend.

THE INGREDIENT

KSM-66® Ashwagandha (Withania somnifera) 500mg FULL-SPECTRUM ROOT EXTRACTStress Response SupportDeep Recovery & Sleep QualityAdaptive Regulation
  • Stress Response Support
  • Deep Recovery & Sleep Quality
  • Adaptive Regulation

Clinically studied KSM-66® Ashwagandha, a full-spectrum extract designed to support everyday stress resilience and recovery.

DOSE AND SUPPLY
Per capsule500mg
Per two capsules1,000mg
Per bottle90 capsules

WHAT IT MEANS FOR YOU

The practical side of the science.

500mgKSM-66®

STRESS RESPONSE SUPPORT

Composure under pressure.

Designed to help you stay balanced and composed under pressure.

1–2daily

DEEP RECOVERY & SLEEP QUALITY

Recovery and sleep quality.

Designed to support quality sleep and recovery.

1ingredient

EVERYDAY DRIVE & WELLBEING

Everyday drive and wellbeing.

Designed to support balanced energy and wellbeing.

KSM-66® · FULL-SPECTRUM ROOT EXTRACT

Clinically studied.

KSM-66® is a full-spectrum ashwagandha root extract, studied in clinical research for stress resilience and recovery.

THE PROTOCOL

Built for a disciplined day.

REIN FOUNDATION

One or two capsules daily.

One capsule is 500mg; two are 1,000mg. A bottle of 90 capsules is a 90-day supply at one a day, a 45-day supply at two.

WHAT TO EXPECT

Foundation is designed to support everyday stress resilience. Take it daily, at a time you choose, and keep that time the same.

Set it once and stop deciding. It rewards consistency, not urgency.

DAILY DOSE · REIN FOUNDATION

1 CAPSULE 500mg90-DAY SUPPLY
2 CAPSULES 1,000mg45-DAY SUPPLY
Every milligram on the label. 90 capsules per bottle.

CHOOSE YOUR FORMULA

Choose by what you want to support.

Each formula is complete on its own. Foundation is built for everyday stress resilience and recovery, Cellular for cellular energy. Run both, and they’re designed to work as one.

HOW THE TWO WORK AS ONE

Chronic stress raises cortisol, the body’s main stress hormone, and elevated cortisol depletes NAD+, which cells rely on to produce energy. Foundation is designed to support everyday stress resilience. Cellular then works in the environment it was designed for.

Effective alone. Exponential together.

Cellular Synergy™ Formula

Built for cellular energy.

Foundation KSM-66

Built for everyday stress resilience and recovery.

The system

Both, designed to work as one.
SupportsEnergy · Cognition · Cellular Repair · Cellular DefenceStress Response Support · Deep Recovery & Sleep Quality · Adaptive RegulationAll seven territories
Active ingredients6 · NMN 500mg and five moreKSM-66® Ashwagandha, 500mg per capsule7
Daily3 capsules1–2 capsules4–5 capsules
One-time£60.00£27.0010% off the second formula
Subscribe£55.00 every 30 days£22.95 every 30 daysPer formula
View CellularView FoundationBuild the system

Cellular Synergy™ Formula

Built for cellular energy.

Supports
Energy · Cognition · Cellular Repair · Cellular Defence
Active ingredients
6 · NMN 500mg and five more
Daily
3 capsules
One-time
£60.00
Subscribe
£55.00 every 30 days
View Cellular

Foundation KSM-66

Built for everyday stress resilience and recovery.

Supports
Stress Response Support · Deep Recovery & Sleep Quality · Adaptive Regulation
Active ingredients
KSM-66® Ashwagandha, 500mg per capsule
Daily
1–2 capsules
One-time
£27.00
Subscribe
£22.95 every 30 days
View Foundation

The system

Both, designed to work as one.

Supports
All seven territories
Active ingredients
7
Daily
4–5 capsules
One-time
10% off the second formula
Subscribe
Per formula
Build the system

STANDARDS

Pure formulations. Total control.

What’s on the label, where it’s made and how it’s tested, so you don’t have to take it on trust.

See the standards

01

Every dose on the label

Each ingredient is listed with its dose. Nothing sits in an undisclosed blend.

02

Made in the UK

Manufactured in the UK to GMP standards.

03

BRCGS certified

Certification: BRCGS.

04

Certificate of analysis

Published for each formula, so you can check what’s in the bottle.

View the certificate

DELIVERY AND GUARANTEE

Sixty days, money back.

Every REIN formula carries the same guarantee: 60 days, and your money back if it isn’t for you.

GUARANTEE
60-day money-back guarantee
FIRST ORDER
Free UK delivery
SUBSCRIPTION
Free delivery for life
DELIVERY
Royal Mail tracked · UK only

QUESTIONS

What men ask before they start.

Directions, ingredients, testing, delivery and the guarantee.

How do I take it?

One or two capsules daily. One capsule is 500mg of KSM-66®; two are 1,000mg.

How long does a bottle last?

Each bottle holds 90 capsules: a 90-day supply at one capsule a day, or a 45-day supply at two.

When should I take it?

At a time you can keep the same every day. Consistency matters more than the hour.

Can I take it with other supplements?

If you take medication or other supplements, speak to your healthcare practitioner first.

Who should not take REIN Foundation?

Not recommended for children, or for women who are pregnant or breastfeeding. If you take medication, have a medical condition or are under medical supervision, speak to your healthcare practitioner before use. Food supplements are not a substitute for a varied, balanced diet and a healthy lifestyle.

Is it third-party tested?

It’s made in the UK to GMP standards, it’s BRCGS certified, and a certificate of analysis is published for each formula.

How does the subscription work?

15% off every order and free UK delivery for life, delivered every 30 days. Modify or cancel any time.

Where do you ship, and how long does it take?

Within the United Kingdom only, Royal Mail tracked.

Do you offer a money-back guarantee?

Yes. 60 days. If Foundation isn’t for you, we’ll refund your purchase.

REVIEWS

What men running the system say.

5.0
Rated 5.0 out of 5 stars
Based on 3 reviews
100%would recommend this product
Write a Review (Opens in a new tab)
3 reviews
  • AP
    Alex P.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    7 months ago
    Excellent product & website

    The quality of the capsules are good, easy to swallow and excellent results so far with the 500mg x

    Was this helpful?
  • PC
    Peppe C.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Really good quality

    Really good quality products and great supplements! Worth it to try!

    Was this helpful?
  • AR
    Andreas R.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Game changer

    I’ve been taking Rein for a few weeks now, and as I always do when trying a new supplement, I paused all others to accurately assess its effects. Without a doubt, Rein is the most effective ashwagandha complex I’ve ever tried.

    Was this helpful?

The foundation of your performance.

Clinically-backed. Pure. Uncompromising.

Take the reins of your foundation