Wonderfeel FAQ

Get quick answers to our most frequently asked questions.

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How many milligrams of NMN are in each Youngr™ capsule and each serving?

Each Youngr™ capsule contains 450 mg of nicotinamide mononucleotide supported by our other activating ingredients. Two capsules deliver 900mg for optimal results in easy-to-swallow capsules.

Capsule size 00 – 23mm x 8mm.

Each bottle contains 60 capsules totaling 27,000 mg of NMN.

Discover the benefits and science behind the revolutionary synthesis we call Youngr™.

How many milligrams are in NMN Capsuls™?

Each capsule contains 500 mg of pure nicotinamide mononucleotide. We recommend taking two capsules daily for a total of 1000 mg of NMN.

Each bottle contains 60 capsules totaling 30,000 mg of NMN.

Capsule size 0 – 21mm x 7mm.

Can I order a pouch instead of a bottle? Does the pouch cost less?

Two good questions with an interesting twist. We don’t sell pouches individually, you will need to subscribe. Your first order arrives in our elegant glass bottle that can be refilled every month.

While our refill pouches made with ECLIPSE™ technology are a win for the environment, they actually come at a higher production cost than our glass bottles, so the price doesn’t change. The reality is that eco-friendly manufacturing solutions are still catching up, requiring us to source from niche manufacturers who specialize in these greener solutions.

Is Youngr™ NMN vegan, non-GMO and gluten-free?

Yes, yes and yes! Youngr™ NMN does not contain soy, gluten, dairy, or fish, and we use non-allergenic rice hull powder for stabilization. Our capsule shells are 100% vegan and made from vegetable cellulose.

I heard that NMN needs to be refrigerated. Will it be affected by shipping or sitting in my mailbox?

Great question! Our NMN is stabilized, which means Youngr™ and Capsuls™ do not require refrigeration and have a shelf life of 24 months when stored at room temperature. The key is to ensure your bottle or pouch is tightly sealed away from heat, humidity and exposure to oxygen.

Our NMN has undergone extensive stability tests and is confirmed to maintain its purity at temperatures as high as 130° F for up to 10 days, so you can be assured your capsules will still be safe to consume after exposure to various temperatures during shipping.

Do you use liposomal NMN in Youngr™ or Capsuls™?

Our NMN is not liposomal, but this is by design! Currently, there’s no concrete scientific evidence suggesting that liposomal or sublingual NMN is more bioavailable. Leading research supports NMN encapsulated in powder form as the most effective delivery method for raising NAD levels.

Liposomal NMN also faces potential stability and absorption issues, as it’s contained within hydrophilic nanobubbles prone to degradation.

We continue to research the potential through ongoing studies. Right now, the evidence is clear that NMN in powder form has the best stability, dependable bioavailability, and effectiveness in boosting NAD levels. Our article about the largest clinical trial with NMN explains more.

Do you offer pure NMN?

Our NMN is stabilized and lab-tested with a purity rating of more than 99%. For those seeking NMN as a standalone supplement, Wonderfeel offers NMN Capsuls™.


How much Youngr™ NMN should I take daily?

Based on one of the largest clinical trials, we recommend taking two capsules daily, which provides you with 900 mg of NMN. See the dosing logic behind our 900 mg NMN Youngr™ formula. 

What is the suggested daily dose for Capsuls™?

For those taking Capsuls™, we recommend a daily dose of two capsules, providing a potent 1,000 mg of NMN. This dosage aligns with the findings of recent large-scale clinical trials, where NMN has shown effectiveness at doses ranging from 600 to 1200 milligrams per day and significantly less effective at lower doses. In comparison, our Wonderfeel Youngr™ NMN provides a 900mg dose alongside other beneficial ingredients.

Notably, prominent longevity researcher and Harvard professor David Sinclair takes 1,000 mg of NMN daily to achieve optimal results.

Additionally, NMN is a water-soluble molecule, meaning it can be absorbed efficiently by the body without the aid of dietary fats if taken separately.

Does age, weight, or gender matter in NMN dosing?

NMN is particularly beneficial for individuals aged 30 and above, aligning with the time when the body’s natural NAD production gradually begins to decline with changes you may not even notice for several years. For adults over 30, our recommended NMN dosage of 900 mg is considered safe and effective.

Regarding gender, there’s no current evidence to suggest that it plays a significant role in the dosing requirements for Nicotinamide Mononucleotide (NMN).

As for body weight, current human studies on NMN do not suggest the need for weight-based dosing adjustments. However, if you have concerns about NMN dosing, it is recommended that you consult with a healthcare provider who can evaluate your individual needs and provide guidance on the appropriate dosage.

Could Youngr™ NMN interact with my current medications or supplements?

It’s always best to consult your physician before starting any new supplement, including ours. This is particularly important because some of our ingredients, like resveratrol and hydroxytyrosol, are metabolized by liver enzymes, specifically CYP3a4. If your current medications also engage these enzymes, a conversation with your doctor is essential to ensure compatibility.

Can I open the capsules and consume the contents directly?

Absolutely! You can take our capsules in whatever format you choose. For a twist, try sprinkling it into your smoothie or mixing it into a cold beverage. You may notice a mild citrus flavor depending on your preferred use.

Heating isn’t recommended as it could affect the potency of the ingredients. 
Consume within a few minutes after mixing to ensure the ingredients maintain stability.

What’s the best time of day to take NAD Boosters?

For the best results, we suggest taking Wonderfeel NMN in the morning hours. Research shows that consistency and timing are key to maximum efficacy. So aim to take your NAD precursors at the same hour each day to support your body’s circadian rhythm, making any necessary adjustments based on your unique sleep patterns and lifestyle.


NMN: Safe as it gets when it comes to supplements.

NMN has no known side effects. A human clinical toxicity study conducted at Keio University concluded that NMN can be safely administered and that it is effectively metabolized in the body. Subjects were taking 500 mg NMN per day.

Numerous studies have shown that the administration of even extremely high doses of NMN in mice revealed no toxicity or side effects. By and large, a high dose of any drug in mice will cause immediate side effects. It’s reassuring that this is not the case with NMN on mice.
Professor David Sinclair at Harvard Medical School, an expert in NMN and NAD science, states that “human studies with NAD boosters are ongoing and so far, there has been no toxicity, not even a hint of it.” 

However, we look forward to deeper research in this area.

Where are your products made?

Our products are made in the USA at cGMP-certified facilities that comply with strict FDA regulations and are crafted with the purest and highest quality ingredients which are tested at every turn.

Do you have third-party certificates of analysis? (COA)

Always committed to transparency, we provide trackable, 3rd party lab results for all of our products. Please email us at team@getwonderfeel.com for a copy.

Account & Subscriptions

Can I pause my subscription?

Absolutely! Just email team@getwonderfeel.com or text 415-494-9017 to let us know how many months you’d like to pause, and our team will make the adjustment for you.

Can I change how often my subscription arrives or skip a delivery?

Sure thing! We offer you the flexibility to skip a month or modify your delivery schedule to either an every-other-month or a quarterly plan. Simply go to your account, click on ‘Subscriptions,’ and make the change anytime before your subscription is due to renew.

I need a new bottle instead of a refill pouch. How can I do it?

Things happen, and you may need a replacement bottle; we understand. Simply log into your Wonderfeel account and make the request under ‘Subscriptions’ at least 24 hours before your next renewal.

How do I cancel my subscription?

If you want to cancel your subscription, it’s simple. Sign in to your user profile and select ‘Subscriptions’ to see your active and past subscriptions. Once you select a subscription, you’ll see the option to cancel, skip a shipment, or change your subscription frequency.

If you have any feedback or reasons for canceling, we’re all ears. Just pop an email to team@getwonderfeel.com, or you can text or leave a message at 646-801-7606.

Forgot Password / Can’t Log In

If you try to log in and see “Authentication Failed” this means that you’ve either entered an incorrect password or your account does not yet exist. From the login page, select “Forgot Password” and enter your email. An automatic email will be sent containing your new password.

If no email is received, it might be in your spam folder. Spam filters are great, but they can occasionally file important emails out of sight. Check your bulk, spam, or junk folders and mark the email as “Not Spam” or “Not Junk.” Also, consider adding @getwonderfeel.com to your “approved sender” or “whitelist”, and/or to your “address book” to cover all the bases.

Orders, Shipping & Returns

Can I return a product if I change my mind?

If you’re based in the US, we’ve got you covered with a 30-day return policy for unopened items, though shipping the product back to us will be your responsibility. Please note that all international sales are final and are not eligible for returns. For full details on initiating a return, visit our Shipping and Returns page.

I entered the wrong shipping address / made a typo, can I change it?

Yes, as long as the error is fixed before your order is processed, we can make the adjustment for you. Please contact us immediately via text or by leaving a voicemail at (646) 801-7606. You can also email team@getwonderfeel.com. We will respond within two hours or less Monday thru Friday, 9 am – 6 pm Pacific Time.

Do you charge state sales tax?

Yes. Where sales tax is applicable, it will be calculated based on the shipping address (not the billing address.)

Do you ship internationally?

Yes! We offer international shipping to Austria, Belgium, Bulgaria, Canada, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Monaco, Netherlands, Norway, Poland, Portugal, Romania, San Marino, Slovakia, Slovenia, Spain, Switzerland, United Kingdom and Oman, Abu Dhabi, and Dubai.

For all destinations outside of the US, shipping, VAT, duties, and customs fees will be calculated at checkout, with delivery estimated at 6-14 business days through DHL.

We’re expanding to many other International locations in 2024 — stay updated by subscribing to our newsletter!

What‘s your estimated delivery time for shipping?

For orders shipped within the continental U.S., expect your package to arrive via USPS within 1-6 business days after it’s processed, depending on where you’re located.

For international orders, we estimate a delivery period of 6-14 business days via DHL after processing.

We process orders on weekdays, excluding holidays, in Central Time. Orders placed over the weekend or on holidays may take 24-72 hours to process, and those placed after 2 PM CT will be processed the next business day.

Everything Else

NMN vs NR as NAD precursors

NMN is an intermediate compound between NR and NAD, meaning NR converts to NMN, at which point NMN triggers NAD production. By taking NMN directly, you eliminate the step of having your body convert NR to NMN. More on this subject.

Do you offer an affiliate program?

Yes, we do have an affiliate program. Please email us at team@getwonderfeel.com for details.