We’ve introduced a bold new design to reflect the role Humann plays in modern cardiovascular health. We created this category, we lead it, and our packaging now reflects that distinction.

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No. Our formulas are unchanged. Only the design has evolved.

Yes. During the transition, you may see both designs. Both are authentic Humann products. 

The new design begins rolling out in January and transitions across shelves through April, depending on location. 

As we enter a modern era of cardiovascular health—focused on performance, longevity, and whole-body impact—our design now reflects the standard Humann has set for the category. 

At Humann, we believe exceptional potential exists within all of us and that our health can either propel us forward or hold us back from achieving exponential growth.

We create products that help you pursue your health goals while you strive to live better, happier, and more fulfilled lives. We do that by harnessing the power of nutrition science to ensure you’re getting superfood nutrients in a way that fits your lifestyle, genetics, preferences, and personal goals.

There’s a wealth of information about Nitric Oxide available in Our Story section. And please feel free to email us at info@humann.com for any further questions.

Humann has partnered with NoFraud, a fraud prevention solution for eCommerce businesses. NoFraud screens transactions on our behalf and alerts us if they find a transaction is at high risk for fraud. This protects our customers against unauthorized credit card use.

You may have received an email, call or text from NoFraud because your transaction with us had irregular shopping characteristics and/or elevated risk. NoFraud just wants to confirm the purchase was made by the authorized cardholder. If an order cannot be verified, it is automatically refunded and cancelled within 48 hours of being placed.

Find the status of your order by using our chat function on this website to quickly look up your order status, receive tracking information, and speak with a Customer Support representative.

You can also call or text our Customer Support team at 1-855-636-4040. We’re available Monday–Friday, 8am–6pm CST. Or email our Customer Support team at info@humann.com.

If you are not fully satisfied with your product, you may return it within 90 days from the order date for a full refund of the purchase price, minus the shipping and handling charge. The item must be returned, used or unused, in good condition in original boxes.

You must also provide a Return to Manufacturer Authorization (RMA) number along with the product, which you can get by calling our Customer Support team at 855-636-4040. Please write the RMA number on the outside of the return box, so the return can be processed by our Returns Department.

Any return without the RMA number on the outside of the box will not be processed for refund.

Nitric Oxide is critical to our very lives and wellbeing. Which means replenishing it is critical, as well. We’ve made it easy to get our functional foods and supplements through our subscription program. When you join the program, you’ll receive monthly shipments of one or more of our products, or if you prefer, a three-month supply every 90 days for our best savings. Shipping is free with our subscription program and you can cancel any time.

Yes, on any subscription order and on one-time purchases above $49.99.

Yes – our products are sold at leading retailers such as Costco, Walmart, Target, GNC, CVS, and Sprouts Farmers Market, but please visit our Store Locator to find all our various retail locations.