TRACK YOUR PROGRESS
The NR Rewind Kit
The NR Rewind Kit
- Energy
- Metabolism
- Brain
Ageing is cell damage, linked to lower NAD+ levels. The Clock measures this damage alongside The Plus—NR, which works to repair it by boosting NAD+ levels to fuel and restore cell function.
1 kit (90 capsules) lasts 3 months at 1 capsule per day.
Free delivery on eligible orders. Check your location.
90 Day Money Back Guarantee
WHAT IT DOES
WHAT IT DOES
Our NR formula uses 99% pure Niagen® NR (Nicotinamide Riboside), made in the US. Paired with our Biological Age Test, it’s the perfect duo to repair your cells and track your progress against ageing.
How it works:
Our biological age test, The Clock, measures your epigenetic damage, a key indicator of ageing. It’s a simple at-home saliva test, and your data is 100% secure.
NR is a building block that the body uses to produce NAD+, a crucial molecule for cellular energy and DNA repair. By boosting NAD+, NR helps to maintain cellular health to support increased healthspan and longevity.
Benefits of taking NR:
- Increases energy levels
- Boosts metabolism
- Enhances mental clarity
- Promotes weight management
- Improves sleep quality
- Improves physical endurance and recovery
WHAT IS IN THE KIT
WHAT IS IN THE KIT
Serving Size: 1 capsule
Servings Per Kit: 90 (3 month supply)
Active Ingredients:
- Niagen® NR (Nicatinamide Riboside), 300mg
Add-Ons: Each kit comes with 2 x The Clock, a saliva-based biological age test, for a before and after insight into your cellular health.
HOW TO USE
HOW TO USE
The Plus: Take 1 capsule in the morning.
The Clock: Follow the instructions on the pack to take an easy saliva-based test at home. Send in your results via a pre-paid envelope.
TESTING CERTIFICATES
TESTING CERTIFICATES
We test every batch for contamination and impurities, ensuring you get exactly what you pay for.
Click here to view our testing certificate catalogue.
What’s Included
The Plus | 1 bottle + 2 refill sachets
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The Clock | 2 tests
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NAD+ is vital for keeping our cells healthy as we age, powering the mitochondria—our cells' energy engines. However, as we age, our NAD+ levels decline, accelerating the ageing process. NR, a unique form of vitamin B3, safely increases NAD+ levels, effectively slowing down and even reversing some aspects of ageing. Read scientific evidence.
Boost NAD+ to Repair Cell Damage.
Why Get a Biological Age Test?
There are countless reasons to take a biological age test, but let’s focus on the top three.
Why Our Age Test is Different
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Easy
A non-invasive, saliva-based test that’s simple to complete at home.
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Affordable
Designed to be much more cost-effective than other test while maintaining accuracy and legitimacy
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100% Data-Protection
Your sample is destroyed, and your data is encrypted and never shared with third parties.
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Shipped Internationally
Available worldwide with fast, reliable delivery.
Getting to the heart of ageing at the cellular level is how we can truly extend our healthspan and longevity. When we focus on repairing, protecting, and renewing our cells, we're not just slowing down the ageing process—we're giving our bodies the tools they need to stay strong for years to come. It's about empowering every cell to withstand the effects of time so you can live a full and healthy life."
Dr Vincenzo Sorrentino
Biochemistry & Longevity, NUS Medicine, Singapore.
HOW TO USE
1 x capsule, daily in the morning
Begin your journey with the first biological age test, then follow up with the second test 3 to 6 months later to track your progress.
TIMELINE
7 - 14 days
Initial effects are often felt within 7-14 days, with optimal improvements typically appearing after 4 weeks. For full range of beneftis at maximum potential, daily supplementation for 12 weeks is recommended.
EXPECTED RESULTS
Energy
Metabolism
Brain
Pairing The Plus with our biological age test is a powerful way to support your health. The Plus boosts NAD+ production, enhancing energy, cognition, and much more. The biological age test reveals how your body is ageing, motivating you to make healthy choices. Together, they help you take control of how you age.
What To Expect
Impeccably High Standards
We take sourcing seriously because quality matters, especially in the supplement industry. We carefully select only the most trusted suppliers with the most effective ingredients, making sure they meet the highest standards of purity, potency, and scientific backing. This way, we can confidently offer products that really work. In a world where supplement standards can be all over the place, our commitment to top-quality ingredients exists for one reason — to help make each year of your life better than the last.
Nicotinamide Riboside (NR)
The Clock
Ask Anything
Why should choose For Youth over other longevity supplements?
Our supplements are designed so you get everything you need and nothing you don't. Our range is specifically designed to stack perfectly on top of each other depending on your longevity and healthspan needs. I.e. Want to focus on cellular health? Use the Age Defence Kit. Want to target specific age-related risk factors? Try our other products, The Lean, The Skin and The Unwind. Want to track your cellular ageing? Try The Clock. It's a simple, science-backed system for people with one thing in mind — getting the most out of life.
Can I take both NMN and NR at the same time?
Yes, you can.
You might choose to take both NMN and NR together to potentially maximize the increase in NAD+ levels through different metabolic pathways.
Since NMN converts to NR, then back into NMN before being converting to NAD+ and NR converts directly intoNMN before becoming NAD+, using both tackle these two different metabolic pathways and might offer a more comprehensive boost to NAD+ production in different parts of the body.
Whilst there is no direct research observing the benefits of taking both NMN and NR at the same time, early research may indicate different parts of the body have preference over on NAD+ booster vs the other.
What is the difference between biological age and chronological age?
Your biological age, as opposed to your chronological age, is the age your body resembles or functions at. It can be calculated by measuring chemical changes to the regulators of your DNA that are correlated with getting older.
We all have family members, friends and colleagues who do not look their age. Some people look a lot older than the age on their passports, others a lot younger. Scientists have now found a way to measure the actual rate of ageing and how old your physical body really is.
How does The Clock determine my biological age?
There are several types of biological age tests available, each with its own methodology.
Our biological age test—The Clock—is a straightforward saliva-based epigenetic test that measures your biological age by analyzing DNA methylation levels. DNA methylation, a key part of epigenetics, acts as an "on" and "off" switch for your genes, controlled by chemical tags added or removed over time. By studying these changes in your spit, we compare your results to averages and determine how your body is aging compared to your peers.
We chose this approach because it offers a cost-effective solution without compromising accuracy. If you’re looking for an extensive array of complex biomarkers, this test might not be for you. But if you want a simple, reliable, and straightforward read on your biological age, you’re in the right place!