HARVARD STUDY: NAD+ levels drop 50% by age 45 — accelerating every year after 35 (Zhu et al., 2015). ★★★★★37,000+ Women Trust This · 4.9 · 2,600+ verified reviews
🔬 Harvard Longevity Research · 2024

A Harvard professor slowed his biological aging significantly. Here's the molecule he uses.

In 2013, Prof. David Sinclair published research that shocked the scientific world. He discovered that one molecule controls how fast your cells age — and that by age 40, most women have lost up to half of it. That molecule is NAD+. The decline starts at 35.

✓ 13 Active Ingredients✓ 60-Day Guarantee✓ EU GMP-Made✓ BioPerine® Absorbed✓ Glass Bottle✓ Mérieux Tested

Every year without restoring NAD+:

  • 📉NAD+ drops another 10–15% — energy, focus and cellular repair all decline faster than the year before.
  • 🔋Cellular energy production measurably declines — the 3pm crash, the morning fog. Your cells are running low on fuel.
  • 🧬DNA repair slows significantly — the enzymes that repair your cells overnight run on NAD+. The night shift gets shorter.
  • Skin, hair and hormones visibly decline — collagen synthesis, hair follicle energy, hormonal balance — all NAD+-dependent.
Calculate my NAD+ level ↓
60-day money-back guarantee · €0.63/day · 13 clinically studied ingredients.

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Ingredients with research featured in

COSMOPOLITAN Women's Health VOGUE marie claire BODY+SOUL

The science behind it has been studied by

National Institutes of Health
ScienceDirect
Harvard Health Publishing
📚 Trammell 2016 — first NR human trial

Oral Nicotinamide Riboside (NR) raised blood NAD+ levels by 40–60% in healthy adults. No injections. Just a daily capsule.

Trammell et al. 2016 · Cell Metabolism · Human trial
📚 Harvard Medical School

"NAD+ is the closest thing to a fountain of youth we've yet discovered. When we restore NAD+ in old mice, they look and act young again."

Prof. David Sinclair · Harvard Medical School · Lifespan (2019)
📚 BioPerine® · absorption

BioPerine® increases bioavailability of fat-soluble actives by up to 2,000% — Resveratrol and Curcumin specifically.

Sabinsa Corp. · Patented black-pepper extract (piperine)
🪞
I genuinely thought this was just what 40s feels like. I thought I just needed to accept it. I was so wrong about what was actually happening inside my cells.
Her story. Maybe yours too.

She thought she was just getting older. She was wrong.

Sarah was 43. Senior marketing director. By every measure a successful life — and yet, every morning she woke up like she'd been hit by something invisible. Coffee at 7am. Another at 10. By 3pm, unable to form a sentence.

She tried everything. Biotin for thinning hair — nothing. CoQ10 for energy — nothing. A €60/month NAD+ brand with a Nobel-Prize badge — 90 days, noticed nothing.

What nobody had explained: her NAD+ products only had one ingredient, and 85% of it was passing straight through her body. The other pieces Sinclair himself takes daily weren't there at all. Six weeks into the complete formula, her colleague stopped her in the hallway: "Are you doing something different?"

Show me what was missing ↓
Scientific data — Zhu et al., 2015

Your NAD+ is
already declining

By age 35 you've lost 25%. By 45 you've lost 50%. By 55 you've lost 68%. This is what happens inside every cell — starting in your mid-30s. The decline isn't optional. The response is.

NAD+ levels by age — Zhu et al. 2015 Solid rose curve shows the natural decline of NAD+ from 100% at age 20 to 15% at age 70. Dashed violet curve shows what becomes possible with NAD+ Youth Elixir, starting at age 40. NAD+ level (% of peak at age 20) 110% 100% 80% 60% 40% 20% 0% Age 20 Age 25 Age 30 Age 35 Age 40 Age 45 Age 50 Age 55 Age 60 Age 65 Age 70
Natural NAD+ decline With NAD+ Youth Elixir*

*NAD+ Youth Elixir data based on clinical NR studies (Trammell 2016) and synergistic ingredient research. Individual results may vary.

35
−25% NAD+

First noticeable symptoms: fatigue, slower recovery, early skin changes.

45
−50% NAD+

Significant energy loss, brain fog, hair and skin visibly affected.

55
−68% NAD+

Cellular repair severely impaired. Most women feel 10 years older than they look.

Where are your NAD+ levels right now?

Age, stress, sleep quality, alcohol — all working against you, unless you support your cells. The 6-question calculator below takes 60 seconds.

Calculate my NAD+ level →
The Discovery Timeline

How the world's top longevity scientists
cracked the code of cellular aging

  1. 2013

    Sinclair Lab, Harvard — the breakthrough

    Prof. David Sinclair publishes research showing measurable changes in key aging markers when NAD+ is restored in aged tissue. The paper in Cell becomes one of the most cited longevity studies in history.

  2. 2016

    First human trial — NR raises blood NAD+ by 40–60%

    Trammell et al. (Cell Metabolism) confirm that oral Nicotinamide Riboside (NR) safely and significantly increases NAD+ levels in humans. No injections. No clinic. Just a daily capsule.

  3. 2019

    Sinclair publishes Lifespan — goes mainstream

    His bestselling book reveals his personal protocol: NR daily, Resveratrol to activate sirtuins, and CoQ10 for mitochondrial function. The exact stack now in every capsule of NAD+ Youth Elixir.

  4. 2022

    Women's health focus emerges

    Research confirms that women in perimenopause experience steeper NAD+ decline than age-matched men — compounded by hormonal changes. Yet no supplement brand had addressed this gap. Until now.

  5. 2024

    NAD+ Youth Elixir — built for women 35+

    13 synergistic ingredients. BioPerine® for up to 2,000% better absorption. Glass bottle. EU GMP. Mérieux NutriSciences tested. A complete NAD+ formula designed specifically around female biology.

If any of this sounds familiar

Your cells are sending you signals.

This isn't aging. This is NAD+ depletion. And it has a solution.

Coffee stopped working

"Two espressos by 10am and I'm still foggy by lunch."

Your cellular power plants are running on empty. Caffeine masks fatigue for an hour, then you crash harder. The real fuel is missing.

→ ✓ NR + CoQ10 refill the tank directly. No stimulants.

🌫

The fog won't lift

"I forget words mid-sentence. Lose my train of thought constantly."

Your brain is the most NAD+-hungry organ in your body. When levels drop, thinking slows down. You're not stupid — you're low on fuel.

→ ✓ NR + DHA + Curcumin clear the fog — usually within weeks.

🪞

Your skin lost its glow

"I look more tired than I actually feel. Every photo confirms it."

Your skin renews itself every few weeks — or it used to. With less NAD+, repair slows. No cream fixes this from outside; the problem starts inside your cells.

→ ✓ Hyaluronic Acid + Vitamin C + Astaxanthin rebuild from within.

😤

The 3pm crash — every day

"I can't focus after lunch. By evening I've got nothing left."

Not weakness. Not stress. Your body's battery just runs out by afternoon. It happens to almost every woman over 35 — and nobody tells you why.

→ ✓ CoQ10 + Quercetin = stable energy all day. The crash stops.

Your personal NAD+ baseline

How much NAD+ do you still have left?

By age 45, women lose 50% of the NAD+ they had at 25. Stress, alcohol, and perimenopause speed it up. 6 quick questions — and we'll show you your estimated cellular age vs. your real age.

1 — 6 quick questions takes less than a minute

2 — See your NAD+ level and your estimated cellular age right now

3 — Get a personal recommendation what to do next

🧮 Your NAD+ Calculator

Your estimated NAD+ level vs. your 25-year-old baseline
--
--

Restore my NAD+ — see the complete system →
The real problem

Why 9 out of 10 NAD+ supplements do nothing

It's not because NAD+ is a scam. It's because NR alone is only one piece of the puzzle. And up to 85% of what's in your capsule never reaches your blood.

💡 The simplest way to understand it

It's like a fuel pump with no battery and no key

Imagine you have a luxury car. Premium fuel sits in the tank. But the battery is flat — and someone took the key. Nothing happens.

That's exactly what happens when you take NAD+ precursors alone. Your body has the raw fuel, but no spark to ignite it, no absorption pathway, no protection from what's destroying NAD+ every minute.

🔋

NR + Resveratrol = the spark

NR is the fuel. Resveratrol activates sirtuins — the enzymes that actually use the NAD+. Sinclair takes both daily.

CoQ10 = the battery

Your mitochondria's energy source. Drops steeply from your 30s. Without it, NAD+ has nothing to power.

🔑

BioPerine® = the key

Most brands skip it. Without it, 85% of fat-soluble actives never reach your blood. With it: up to 2,000% more absorbed.

Without these, your premium NAD+ supplement is mostly excreted unused. NAD+ Youth Elixir is the only formula in Europe that combines longevity actives the way Sinclair himself uses them — with female-biology cofactors built in.

How it actually works

Here's exactly what happens when you take it

4 steps to restore NAD+. Miss any one and the chain breaks.

🔋Step 1

Your body gets the fuel back

NR is the building block your body uses to make NAD+. Within weeks, your levels can double. That's the cellular energy you've been running without.

← Nicotinamide Riboside 50mg
🛠️Step 2

Repair crews go back to work

Resveratrol activates sirtuins — the enzymes that fix DNA damage. Sinclair takes this every single day for exactly this reason.

← Trans-Resveratrol 50mg
Step 3

The 3pm crash stops

CoQ10 is the battery inside your mitochondria. It declines steadily from your 30s. When you get it back, energy stops crashing. No spike, no fall.

← Coenzyme Q10 25mg
🔑Step 4

Everything actually reaches your blood

85% of what you swallow normally never absorbs. BioPerine® changes that — up to 2,000% better bioavailability. The ingredient most brands skip.

← BioPerine® 5mg
+ One more layer · built for women 35+

Hyaluronic Acid for skin · Biotin for hair · Vitamin D3 + Zinc for hormones · Astaxanthin for UV defense · DHA for brain · Quercetin to clear out tired cells. Seven female-biology cofactors no other NAD+ formula in Europe combines with longevity actives. ← HA · Biotin · D3 · Zinc · Astaxanthin · DHA · Quercetin

🎯 Here's what nobody tells you:

The longevity industry has been selling you half a system.

"Just take NR" "NMN is enough" "More expensive = better"

You tried the €60/month brand with the Nobel-Prize badge.

90 days. Noticed nothing.

Here's why one-ingredient NAD+ products let you down:

    Without BioPerine®, up to 85% of fat-soluble actives like Resveratrol and Curcumin pass through unused.

    NR alone, without CoQ10 and Resveratrol activating the downstream pathways, produces limited real-world effect.

    Stress, alcohol, and UV exposure deplete NAD+ daily — without protective cofactors, you're refilling a leaky tank.

    Female biology after 35 needs specific support — biotin, D3, zinc — that no single-ingredient NAD+ product provides.

Your cells are trying to repair.
But something keeps depleting NAD+ faster than it's restored —
because the full system is missing.

Every ingredient, explained

13 active ingredients — what each one actually does

1 capsule daily. Every morning with breakfast. Simple, consistent, complete.

🔑

The thing you've been missing

Most NAD+ products have 1 ingredient. We have 13. Restoring NAD+ isn't one step — it's a chain of fuel, activation, absorption, and protection. Break any link and the system stops.

🧬 Nicotinamide Riboside (NR) 50mg · The Fuel
The building block your body uses to make NAD+. Trammell 2016 confirmed: oral NR raises blood NAD+ by 40–60% in humans. The same form Sinclair himself takes daily.

🍷 Trans-Resveratrol 50mg · The Activator
Tells sirtuins (your repair enzymes) to start fixing what's broken. Sinclair takes this every day for exactly this reason. Without activation, NAD+ has nothing to do.

⚡ Coenzyme Q10 25mg · The Battery
The energy source inside every mitochondrion. Drops steadily from your 30s onward. When you get it back, the 3pm crash just… stops.

🌶️ BioPerine® 5mg · The Key
Patented black-pepper extract. Up to 2,000% better absorption of Resveratrol and Curcumin. Most NAD+ brands skip it because it adds cost. We don't.

💧 Hyaluronic Acid 25mg · Skin Water
Holds water inside your skin from the inside out. Plumps fine lines. Works synergistically with Vitamin C for collagen support.

🍊 Vitamin C 125mg · The Glow
Builds collagen. Protects from oxidative damage. Contributes to normal collagen formation for skin, bones, and gums.*

🎯 All 13 together — that's what makes this different
No other NAD+ formula in Europe combines longevity science with female-biology cofactors. One capsule. Your morning routine. Done in 5 seconds. ✓ Glass bottle · No microplastics · EU GMP · Mérieux-tested

🟡 Curcumin Complex 42mg Calms inflammation. Helps the brain stay clear. Paired with BioPerine® for absorption.

🐟 Astaxanthin 2mg Marine-derived antioxidant. Up to 6,000× stronger than Vitamin C against UV damage to skin.

🔩 Zinc 10mg Keeps hormones balanced. Supports immunity and skin repair. Most women 35+ are deficient.

💊 Biotin 50μg Hair, skin, nails. The classic — but only effective with the energy actives in this formula.

☀️ Vitamin D3 25μg Mood, bones, hormones. Most northern-EU women are below recommended levels year-round.

🐠 DHA Omega-3 10mg Brain food. Helps with focus and memory. Critical for women in perimenopause.

🍎 Quercetin Senolytic — helps clear out tired, damaged cells so new healthy cells have room to grow.

Verified buyers

Real Women. Real Results.

Verified buyers · Unfiltered · No studio shots

2,600+Women trust this

4.9★Average rating

89%See results by week 6

60 daysMoney-back guarantee

6 Weeks

✓ Brain fog lifted · Stable all-day energy

★★★★★

"After two weeks I had my first calm evening in years. The brain fog I'd had for months just lifted. I almost cried."

Sarah M. · Vienna, Austria · Age 41

✓ Verified buyer

8 Weeks

✓ Wakes rested · Hair fuller

★★★★★

"I tried everything for my energy. Nothing worked. Week 3 of NAD+ Elixir — I woke up before my alarm and actually felt good."

Kathrin H. · Hamburg, Germany · Age 47

✓ Verified buyer

8 Weeks

✓ Brain fog completely cleared

★★★★★

"Three years of fog. Doctors said stress. Week 2 of NAD+ Elixir — I woke up and my head just worked. I cried."

Julia B. · Graz, Austria · Age 44

✓ Verified buyer

Your 90-day transformation

What to actually expect — week by week

What your body actually goes through — based on the published clinical literature on NR + sirtuin activators.

Weeks 1–2 · First Energy Shifts
  • Subtle but real afternoon energy boost
  • Less caffeine dependence
  • Sleep starts feeling more restorative
  • NR levels begin to climb in your blood
🧠
Weeks 4–6 · Clear Head, Stable Energy
  • Brain fog lifts noticeably
  • The 3pm crash stops happening
  • First visible skin changes
  • Friends start commenting
Month 3+ · Deep Cellular Benefits
  • Skin radiance returns from within
  • Hair density visibly improves
  • All-day stable energy becomes the norm
  • You feel like yourself again
Start your cellular reset →

🛡️ 60-day money-back guarantee

* Based on Trammell et al. 2016 (NR human trial) and synergistic ingredient research. Individual results may vary.

Why we're different

Why 2,600+ women trust this formula

Independent testing. No shortcuts. Every claim backed.

Lab Tested

Mérieux NutriSciences · Full CoA public

BioPerine®

Up to 2,000% better absorption

60-Day Guarantee

No questions · Full refund

2,600+ Women

Trust this formula daily

Glass Bottle

Zero microplastics · EU-made

Honest comparison

How we compare

Cheaper isn't always cheaper. Here's what single-ingredient NAD+ products cost when you add the missing pieces.

What's inside Feel Awsm TruNiagen Life Extension
Total active ingredients 13 1 4
Nicotinamide Riboside (NR)
Trans-Resveratrol (sirtuin activator)
BioPerine® absorption enhancer
CoQ10 (mitochondrial energy)
Hyaluronic Acid (skin)
Designed for women 35+
Glass bottle (no microplastics)
60-Day Money-Back Guarantee
Format 1 capsule daily 1 capsule daily 2 capsules daily
Price per day €0.63 €1.83 €1.22
Annual cost (matched coverage) €239.88 €837–897* €676–736*

Feel Awsm · Total per year€239.88All 13 actives included.

TruNiagen · Total per year*€897+ separate supplements needed

Life Extension · Total per year*€736+ separate supplements needed

Save up to €657/year vs. buying the missing ingredients separately — and get the only NAD+ formula in Europe designed around female biology.

€239.88 vs €897 vs €736 per year

See pricing · Lock in today's price →

* Estimated cost including extra supplements needed to match NAD+ Youth Elixir's coverage (~€180–300/yr extra in standalone supplements).

Risk-free · 60-day guarantee

Everything you get — and what it's worth

Here's what's inside every bottle, and what it would cost to buy each ingredient separately.

NAD+ Youth Elixir — Everything Included
Subscription price

✓ 30 capsules — Nicotinamide Riboside (NR) 50mg — €24.99

✓ Trans-Resveratrol 50mg — sirtuin activator — €12.00

✓ CoQ10 25mg + BioPerine® 5mg — energy + absorption — €9.99

✓ Hyaluronic Acid + Vitamin C + Curcumin + Astaxanthin + Zinc + Biotin + D3 — €11.99

✓ DHA Omega-3 + Quercetin — brain & senolytic actives — €5.99

✓ 60-day money-back · no calls, no forms — Risk-Free

Your price (subscription):
What it would cost separately: €64.96 €19.99/month
= €0.63 a day · less than one coffee
1 month supply
Starter
1 Month Supply · 30 Capsules
€24.99
€0.83/dayLess than an airport sandwich 🥪
or 4 installments of €6.25 by Klarna
Annual: €299.88

    ✓ Free shipping on orders over €59

    ✓ 60-day money-back guarantee

    ✓ Delivered in 2–3 business days

⭐ Most Popular
3 month supply bundle
Committed
3 Month Supply · 90 Capsules
€74.97
€67.47
€0.75/dayLess than your daily oat latte ☕
or 4 installments of €16.87 by Klarna
save 10% · €7.50
🎁

FREE BONUS GIFT How to Look & Feel 10 Years Younger — No Crazy Diets or Workouts Needed. Value: €19.99 · YOURS FREE

    ✓ Free shipping included

    ✓ 60-day money-back guarantee

    ✓ Delivered in 2–3 business days

    ✓ 10% off vs. single purchase

⭐ Best Value
Monthly subscription
Subscription
Monthly Delivery · 30 Capsules
€24.99
€19.99/Month
€0.63/dayLess than your morning coffee — and forever
or 4 installments of €5.00 by Klarna
20% off forever
🎁

FREE BONUS GIFT How to Look & Feel 10 Years Younger — No Crazy Diets or Workouts Needed. Value: €19.99 · YOURS FREE

    ✓ Never run out

    ✓ Cancel or reschedule anytime

    ✓ Free shipping on every order

    ✓ Early access to special deals

    ✓ 20% off every month

🛡️

60 days. No risk. No questions.

Try it for 60 days. If you don't feel noticeable energy, focus, or skin improvements — send one email. We'll refund every cent. No form, no interrogation, no return required. We're that confident because the science is that clear.

Got questions?

Honest answers to real questions

I've tried other NAD+ products — nothing worked. Why would this be different?+

The most common reason single-ingredient NAD+ fails: no synergists and no absorption enhancer. Up to 85% of Resveratrol and Curcumin passes through your body unused without BioPerine®. NR alone — without CoQ10 and Resveratrol activating the downstream pathways — produces limited real-world effect. NAD+ Youth Elixir combines 13 ingredients the way Sinclair himself uses them: as a system, not in isolation.

How long until I feel something?+

Weeks 1–2: Most women report subtly more afternoon energy and less caffeine dependence.
Weeks 4–8: Clearer thinking, stable energy, first visible skin changes.
Month 3+: Deep cellular benefits — skin radiance, hair density, sleep quality. That's why the guarantee is 60 days — long enough to actually experience it.

What exactly is BioPerine® and why does it matter?+

BioPerine® is a patented black pepper extract (piperine) that dramatically increases the bioavailability of fat-soluble actives — particularly Resveratrol and Curcumin. Without it, those compounds are poorly absorbed and largely excreted. With BioPerine®, bioavailability increases by up to 2,000%. Most NAD+ supplements skip it because it adds cost. We consider it non-negotiable.

Is this safe during perimenopause or if I take medication?+

The formula contains no hormones and no stimulants. All 13 actives are EU-approved food supplements at studied, safe doses. If you take specific medications — particularly blood thinners or hormone therapy — briefly consult your doctor. For the vast majority of healthy women 35+, this formula is entirely safe.

Why does it cost more than drugstore options?+

Because it has 13 actives — not just one. If you bought NR + Resveratrol + CoQ10 + BioPerine® + the female-biology cofactors separately, you'd spend €676–897 a year. NAD+ Youth Elixir costs €240/year with subscription. Not cheaper than the budget brand — cheaper than the complete system you'd otherwise have to assemble.

Can I really cancel my subscription anytime?+

Yes — one click in your customer account. No phone calls, no forms, no complicated process. You can also pause for a month instead of cancelling. We earn your trust every month through results — not by trapping you.

Stock update

A quick, honest note on stock

ℹ️
We make this in small batches — quality takes time. Pharmaceutical-grade Nicotinamide Riboside and BioPerine® aren't easy to source in large quantities. Stock is available right now. Raw material costs went up in 2025 — we can't promise today's price will hold.
Lock in today's price →

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The decision point

Your cells are aging. You have the option to slow that down.

Sinclair has been taking NR + Resveratrol + CoQ10 every single day for over a decade. The difference between him and the average 55-year-old isn't genetics — it's a daily decision. One capsule. €0.63. What's your excuse?

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