When the buzz about NR gummies first started, I’ll admit I was skeptical. Not because the idea was bad-gummies are everywhere now, and consumers love them-but because I knew exactly how tricky Nicotinamide Riboside can be. I’ve spent years in supplement manufacturing, and I’ve seen plenty of ingredients that look easy on paper but turn into headaches on the production floor. NR is one of those headaches.
At KorNutra, we decided to take on the challenge anyway. Not because we wanted to prove something, but because we genuinely believed there was a better way to deliver NR-if we could solve the manufacturing puzzles first. And there were plenty of those.
The Heat Problem That Almost Killed the Project
Here’s something most people don’t realize: NR is incredibly hungry for moisture. Drop it into a hot, wet environment-like a standard gummy syrup at 70-80°C-and it starts to break down almost immediately. That breakdown turns NR into niacinamide, which isn’t dangerous, but it also isn’t what people paid for. The molecule literally changes identity under heat and water.
We had to rethink the entire process. Instead of adding NR into the hot syrup, we developed a post-cook infusion step. The gummy base cools below 60°C before we introduce NR, and we run the whole thing under nitrogen to keep moisture out. This meant retrofitting our tanks with chilled jackets. Expensive? Yes. But it works.
What About the Bitter Taste?
NR has a sharp bitterness that’s hard to hide. In a capsule, you swallow it fast. In a gummy, it lingers on your tongue for a full 30 seconds. Some manufacturers pile on citric acid to mask it, but that only makes things worse-acid can destabilize NR and create even more off-flavors.
Our solution wasn’t about covering the taste. It was about changing how the gummy releases the ingredient. We tweaked the gelling agent blend-a mix of pectin and modified starch-to create a firmer chew that releases NR more slowly. Pair that with a cool raspberry-mint flavor (not heavy fruit punch), and the bitterness fades into the background without needing extra acid.
The Crystallization Nightmare
Early batches looked great for the first 24 hours. Then we started seeing tiny white crystals forming on the surface. That’s a deal-breaker in premium supplements-nobody wants gummies that look like they’ve gone bad.
The problem was supersaturation. NR has a limited solubility in the gummy matrix, and if the balance is off, it crystallizes out. We ran phase mapping tests (yes, that’s as tedious as it sounds) and found the ideal formulation: 2.5% NR by weight, combined with a precise ratio of maltitol to isomaltulose. That keeps the NR in an amorphous, non-crystalline state for the entire shelf life.
Stability Testing Told the Real Story
We put our gummies through accelerated stability testing at 40°C and 75% humidity. The first versions lost 30% of their NR content in just four weeks. The causes were clear: moisture migrating to the surface and oxygen sneaking through the gummy matrix.
Our fix came in three layers:
- Packaging: Individual foil pouches with oxygen scavengers inside. No bulk jars.
- Water activity control: We target a_w of 0.55-0.60, well below the typical 0.65-0.75 for most gummies. Lower water activity slows both hydrolysis and microbial growth.
- Coating: A light dusting of tapioca starch after demolding acts as a moisture barrier.
After these changes, 12-month room-temperature stability now shows >95% NR retention. That’s on par with capsules-and honestly, better than I expected at the start.
Why Bother With Gummies at All?
If NR is this hard to work with, why not just stick to capsules? Because the market is changing. People want convenient, enjoyable formats. A well-made gummy can deliver the same active ingredient without sacrificing quality-but only if you’re willing to re-engineer everything from raw material handling through packaging.
If you’re thinking about launching an NR gummy, here are the questions to ask your manufacturer:
- At what temperature do you add NR to the gummy base?
- What’s your target water activity?
- How do you control humidity on the production floor?
- Do you have accelerated stability data for the finished product?
If they can’t answer those clearly, they’re still learning. And in this space, the learning curve can cost you a lot of time and money.
At KorNutra, we burned through plenty of test batches to get this right. That experience is baked into every gummy we make now-so you don’t have to repeat our mistakes.
This article is for informational purposes only and does not constitute medical advice or health claims.