Skip to product information
XXL Grass-Fed Hydrolyzed Collagen Peptides
  • XXL Grass-Fed Hydrolyzed Collagen Peptides
  • XXL Grass-Fed Hydrolyzed Collagen Peptides
  • XXL Grass-Fed Hydrolyzed Collagen Peptides
  • XXL Grass-Fed Hydrolyzed Collagen Peptides
  • XXL Grass-Fed Hydrolyzed Collagen Peptides
XXL Grass-Fed Hydrolyzed Collagen Peptides

XXL Grass-Fed Hydrolyzed Collagen Peptides

$49.99
Anti aging
Boosts energy
Aids mental clarity
Supports immune system

1-4 Day US shipping

60 Day Guarantee
Manage Subscription

How to Manage Your Subscription

1. Access the Portal: Use the link in your order email or log in on our website to access your subscription portal.

2. Cancel: In the portal, go to “Manage Subscription” and click “Cancel Subscription.” Follow the prompts to confirm.

3. Reactivate: To restart your subscription, return to the portal and click “Reactivate.”

4. Need Help or Have Questions? Contact us if you have any issues—we’re happy to assist.

Your satisfaction is important to us, and we want to ensure that managing your subscription is as seamless as possible. Thank you for choosing us!
How To Request a Refund?

Kindly contact us at support@corua.store to request a refund. Please note that refunds must be requested within 60 days of receiving the product.

Subscribers:
Try it for 60 days. If you’re not glowing, energized, and loving it, we’ll refund your first bottle—no questions asked. Unopened 2nd bottle? Refund that too. You keep month 3 on us for completely free.

If you need to cancel the subscription early for specific reasons please reach out to us at: support@corua.store

Why is NAD+ so important after 45?

NAD+ is the molecule responsible for: turning food into energy, repairing damaged DNA, regenerating skin cells, fighting inflammation, activating anti-aging sirtuins, powering your heart and muscles, keeping your metabolism active, and protecting brain cells from decline. It's essential for hundreds of vital processes that keep you alive and thriving.

When NAD+ levels are high, you feel vibrant. Your skin glows. Your mind is sharp.

But here's the truth: After age 45, your NAD+ levels crash by up to 50%.

60 Day Guarantee -

Featured Ingredients

Discover the powerful natural ingredients that make our products effective
Swipe to explore more ingredients

The Real Cost of NAD+ Decline

After decades of sacrifice – raising kids, building careers, being everything to everyone – THIS should be your time.

Instead? You're exhausted. Foggy. Watching your body betray you.

And it's only getting worse. Each year, your NAD+ drops further. The fatigue deepens. The brain fog thickens.

You've given everyone else your best years. Now, when it's finally YOUR turn – to travel, pursue passions, feel vibrant – your cells are failing you.

Clinically Tested Results

Clinical Trial Participants Report These Results - Based on 8 Clinical Trials.

87%

Improved Sleep Quality

Study subjects reported improved mental clarity.

74%

Increased Energy

Study subjects reported improved daily energy.

68%

Improved Sleep Quality

Trial participants noted better sleep quality and reduced fatigue within 4–6 weeks.

Why Everything Else Has Failed

Don't get scammed: March 2025 lab testing exposed that 75% of NAD+ supplements are basically placebos. Major brand Cata-Kor claimed 500mg but contained only 327mg. Certain other brands had ZERO detectable NAD+.

Supporting Studies

Independent Lab Analysis: NAD⁺ Industry Quality Audit

A March 2025 independent laboratory investigation tested 21 of the top-selling NAD⁺ supplements on Amazon.

contained less than 1% of the NAD⁺ stated on their label

met or exceeded their label claims
inherently misleading all failed

Read the full study (PDF)

(Report by Niagen Bioscience Inc., March 2025)
Brand Claim Actual NAD+
Cata-Kor 500mg 327mg (34% less)
AGLVIA 1800mg Not Detected
Fabamax 1600mg Not Detected

60 Day Guarantee

If you don't get the results we promised you don't have to pay a dime.

Still Have Questions?

Why is it more expensive than other brands?

Because you get what you pay for. The recent Niagen study (of March 2025) showed that cheaper brands deliver up to 89% less NAD+ than they claim on their label. We didn't hold back when creating this formula, so that you get the full benefits.

How do I know this will work for me?

Unlike the 57% of NAD+ products that have NO active ingredient, every batch of CORŪA is third-party tested. Plus, our 60-day guarantee allows you try it completely risk free
Is it safe with my medications?

NAD+ is a special form of vitamin B3 - as natural as the niacin in your food. Although it's generally safe, we always recommend to consult your doctor, especially if on medications.
How long until I feel the difference?

Days 1-7:

  • Body adjusts to higher NAD+ levels
  • Possible mild fatigue initially
  • Mood and mental clarity begin improving

Weeks 2-4:

  • NAD+/resveratrol optimize mitochondria
  • Quercetin reduces inflammation
  • Less grogginess, sharper thinking
  • Emotional stability improves

Months 2-3:

  • Enhanced skin glow and cognitive clarity
  • Stable moods and sustained energy
  • Feel stronger, more youthful
  • Metabolism improves, aging slows
60-Day Money Back Guarantee

Try CORŪA for 50 full days. If you don't feel:

  • More energetic and clear-headed.
  • More like "yourself" again.
  • Confident we delivered on our promise.

Simply request a full refund. No questions, no hassles.

email us at: support@corua.store

3 of the first 10 reviews win a FREE bottle!