Every now and then, a supplement category comes along that looks straightforward on the surface. Pick a delivery form (powder, capsule, gummy) and you're done, right? Not with NAD+ precursors. Molecules like Nicotinamide Riboside (NR) and Nicotinamide Mononucleotide (NMN) have a mind of their own. They want to degrade. They crave moisture. And they can't stand heat. So naturally, the industry decided to put them in a gummy, a format that is literally built on moisture, heat, and a sticky gel matrix. You see the problem.
I've spent two decades in supplement manufacturing, and I've learned that some products are chemically rebellious. The NAD+ gummy is one of them. Everyone wants the efficacy of a controlled-release capsule with the convenience of a fruit chew. But bridging that gap requires solving three manufacturing conflicts that most brands never even realize exist.
1. The Hygroscopic vs. Heat Conflict
Picture this: a bag of raw NR powder sitting open on a lab bench. Within minutes, it starts clumping. It's pulling water vapor straight from the air like a sponge. In a capsule, that's annoying but manageable. In a gummy, it's a crisis waiting to happen.
Gummies are made by cooking a base of sugars, pectin, or gelatin to roughly 190-210°F (88-99°C). Then you add your active ingredients. Drop a hygroscopic powder into that hot, viscous slurry, and you create micro-hotspots. The molecule doesn't disperse evenly; it partially degrades before it even reaches the mold. That's the cheap way to do it. The right way is to pre-encapsulate the precursor with a lipid or cellulose coating before it ever touches the hot mass. That creates a protective shell that delays moisture uptake and shields against thermal shock. Most manufacturers skip this step because it adds cost and time. But it's the difference between a gummy that works and one that degrades on the shelf.
2. The Zero Sugar Trap
Consumers want less sugar. I get it. But sugar isn't just for sweetness in gummy manufacturing. It provides the structural backbone. Sugar controls water activity (Aw), prevents crystallization, and gives the gummy that satisfying "bite."
When you swap sugar for erythritol, allulose, or stevia, you destabilize the whole gel matrix. Two things happen:
- Crystallization: NMN and NR can act as seed points in a sugar-free gel. Within 30 days, the gummy turns gritty or sandy. That's the precursor literally precipitating out of solution.
- Syneresis (weeping): Without enough sugar to bind water, the gummy "sweats" over time. Free moisture forms on the surface. Since the active is water-soluble, it migrates to the surface and oxidizes. You end up with a sticky, discolored mess.
The premium fix is a double-stage drying process. After the gummy is set and cut, it spends 24-48 hours in a humidity-controlled drying tunnel. This pulls internal moisture below 12%, locking the precursor inside the gel matrix. It adds a full day to production, which is why most contract manufacturers don't offer it.
3. The Stick Factor: A Production Line Nightmare
One operational truth never makes it into marketing copy: NAD+ precursors make gummies sticky.
The same hygroscopic nature that threatens stability also wreaks havoc on packing lines. As gummies move through the belt coater, they shed fine dust from the raw material. That dust reacts with ambient humidity, creating a tacky outer layer. Gummies stick to each other, jam the counting machines, and cause reject rates that can exceed 15%. That means wasted product, wasted materials, and higher costs that eventually hit the consumer's wallet.
Finishing oil matters. Most producers use coconut or MCT oil as a release agent. It works temporarily, but a smarter approach is a carnauba wax emulsion. The wax creates a hydrophobic barrier that seals the gummy, prevents moisture migration, and keeps the production line running smoothly. If a gummy feels greasy to the touch, that's a band-aid, not a fix.
Three Tests to Judge a NAD+ Gummy
You can't evaluate a gummy by its label alone. Here are the three tests I use when vetting a new NAD+ product for manufacturing:
- The Punch Test. Press the gummy with your thumb. Does it snap back quickly? That indicates good gel strength and low water activity. Does it stick to your thumb? That's a sign of poor processing and impending degradation.
- The Solubility Stack. Look at the other ingredients. If the formula relies heavily on citric acid for flavor (low pH), the precursor can hydrolyze in the bottle. A smart formula uses a citrate salt instead, to maintain a neutral internal pH.
- The Hot Pouch Test. This is the gold standard. Store a sealed sample at 100°F (38°C) for two weeks. If the gummy turns brown or smells bready or yeasty, the precursor has degraded into ribose fragments. That product is chemically dead, no matter what the label says.
The Legal Status of NMN vs. NR
Before you commit a brand to either precursor, check where the ingredient stands with regulators. The two molecules don't share the same legal footing. Nicotinamide riboside, sold as nicotinamide riboside chloride, holds GRAS status (FDA GRAS Notice 635) and has been a lawful supplement ingredient for years. NMN is the one with a history.
In November 2022 the FDA determined NMN was excluded from the definition of a dietary supplement under the drug preclusion clause, because it had first been investigated as a new drug in the MIB-626 development program. On September 29, 2025, the agency reversed that position after a citizen petition and federal lawsuit from the Natural Products Association, confirming NMN is not excluded and moving it back into the New Dietary Ingredient pathway. NDI status was reinstated to notification holders in December 2025. A brand still needs its own NDI notification, or a supplier that has one, to market NMN lawfully.
The reversal is administrative, and it can change. The European Union is a separate issue: NMN is a novel food there, and the European Food Safety Authority published a positive safety opinion in May 2026, but the Commission hadn't authorized the ingredient as of September 2026, and any authorization will be product-specific. The market is moving regardless. In October 2026 Piping Rock Health Products launched a 300-mg NMN gummy under its Vitafusion brand. If your gummy line depends on NMN, your market access depends on where you plan to sell.
The Bottom Line
A premium NAD+ gummy is chemically at odds with a premium gummy texture. You are trading some bioavailability for convenience, but that doesn't mean degradation is inevitable. It means the manufacturing process must be smarter, not faster.
The starting dose on the label matters less than whether the molecule survives from the cook pot to the final pouch. That requires a level of formulation rigor most consumers never see, and many manufacturers prefer to hide. If you're evaluating a NAD+ gummy for your brand, start looking at the process, not the label.