Frequently Asked Questions

Everything You Need to Know About Virevia Supplements and Cellular Wellness

We believe that informed choices create confident results. Below are answers to some of the most common questions about our NMN, NR, and NAD⁺ supplements, how they work, and what you can expect.

Product & Ingredient Questions

What is NAD⁺ and why is it important?

NAD⁺ (Nicotinamide Adenine Dinucleotide) is a coenzyme found in all living cells. It’s essential for:

• Cellular energy production (ATP)
  
  
• DNA repair
  
  
• Mitochondrial function
  
  
• Regulating aging-related pathways (like sirtuins)
  
  

As we age, NAD⁺ levels decline, which is why replenishing it with precursors like NMN and NR is central to supporting longevity and vitality.

What is the difference between NMN and NR?

Both are precursors to NAD⁺, but they work slightly differently:

• NMN (Nicotinamide Mononucleotide) converts directly into NAD⁺ and is often considered more efficient for certain tissues.
  
• NR (Nicotine Riboside) converts into NMN first, then into NAD⁺. It has been widely studied for its effects on brain health and metabolism.
  

Some people respond better to one than the other, which is why we offer both.

Are your supplements natural and safe?

Yes. All Virevia products are:

• 100% vegan and non-GMO
  
  
• Free from gluten, soy, and artificial additives
  
  
• Third-party tested for purity and potency
  
  
• Manufactured in GMP-certified, FDA-registered facilities
  

Do you use fillers or proprietary blends?

Never. We believe in full transparency. All ingredients are clearly listed with dosages, no proprietary blends, no unnecessary fillers, no hidden formulas.

Usage & Results

How should I take NMN or NR?

We recommend taking NMN or NR first thing in the morning, preferably on an empty stomach for optimal absorption. You can take them with water or as directed by your healthcare provider.

How long does it take to notice results?

Most customers begin noticing subtle improvements in energy, clarity, and mood within the first 2–4 weeks. Deeper benefits like improved sleep quality, skin radiance, and exercise recovery tend to emerge within 6–12 weeks of consistent use.

Can I take NMN and NR together?

We recommend using one precursor at a time, unless advised otherwise by a healthcare professional. Each supports NAD⁺ production, but combining them may not yield additional benefits and could increase cost unnecessarily.

Is it safe to take your supplements long term?

Yes, NMN and NR are naturally occurring in the body and in some foods. Clinical studies have shown them to be well-tolerated over extended periods. As always, consult your doctor if you have underlying health conditions.

Orders, Shipping & Returns

Where do you ship?

We currently ship to:

• North America (U.S% Canada)
  
  
• Most of Europe
  
  
• Australia & New zealand
  
  

Shipping options and estimated delivery times are shown at checkout.

How long does shipping take?

Orders are processed within 1–2 business days. Delivery times vary by region:

• E.U. orders: 3-5 business days
  
  
• International orders: 7-15 business days
  
  

You’ll receive a tracking number via email once your order ships.

Do you offer returns or refunds?

Yes. If you're not satisfied with your purchase, you can return it within 30 days of receipt. Products must be unopened. Please visit our [Returns Policy] page or contact support for assistance.

Is your packaging sustainable?

Yes. We use minimal, recyclable materials and are actively working toward full carbon neutrality. Sustainability is part of how we honor long-term health, for you and the planet.

Health & Safety

Can I take your supplements with other medications?

Our supplements are generally well-tolerated, but we strongly recommend consulting your physician if you are taking medications, are pregnant, nursing, or have any medical conditions.

Are your products FDA approved?

Dietary supplements do not require FDA approval before sale. However, our products are    manufactured in FDA-registered, GMP-certified facilities, and every batch is tested for purity and safety.

Are your products suitable for vegans?

Yes, all Virevia supplements are vegan, cruelty-free, and contain no animal-derived ingredients.

Still Have Questions?

If you don’t see your question here, we’d love to help.
Contact our customer care team at Info@virevia.store, or send us a message via the Contact page.