Gummy Supplement Manufacturers Face a New Quality Challenge: Why Stability and Testing Matter

A gummy can look perfect, taste great and leave the production line without an obvious problem. But what happens to its active ingredients after production?

That question is attracting new attention following recent testing of vitamin C gummies sold through Amazon. NOW Foods reported on August 19 that it tested 30 vitamin C gummy supplements, including five established brands. Among 25 brands that had raised labeling questions, 12 failed potency testing with nearly no detectable vitamin C, while four additional products were considered likely to fall below their declared amount before expiration. The testing was conducted with independent laboratory Alkemist Labs using HPLC.

The findings do not mean that gummy supplements as a category are unreliable. Instead, they highlight a more specific issue for gummy formulation: how can brands maintain the intended quality of an active ingredient from formulation through manufacturing and shelf life?

That question is becoming increasingly important as formulas become more complex.

Why Gummy Supplement Manufacturing Is More Complex Than It Looks

Gummies combine nutritional ingredients with a food-like delivery system, creating formulation and production considerations that differ from conventional capsules or tablets.

Heat, pH and Moisture Matter

Some active ingredients can be sensitive to heat, acidity or moisture. These factors need to be considered when developing a gummy formula because processing conditions and the gummy matrix can influence ingredient stability.

Moisture is particularly relevant because it affects not only the texture of a gummy but also its storage characteristics. Packaging and environmental conditions can therefore become part of the product-development strategy.

This is why gummy stability should not be considered only after a product has been manufactured.

The industry discussion is increasingly moving toward a broader view:

The question for brands is no longer simply whether a gummy can be produced. It is whether the formula can perform consistently throughout its intended product lifecycle.

What Should Brands Consider Before Launching a Gummy?

For supplement brands, the recent testing highlights several practical considerations.

First, active ingredients should be evaluated for compatibility with the gummy matrix and manufacturing process.

Second, processing conditions should be considered during formulation rather than after the formula has already been finalized.

Third, finished-product verification matters. Raw material testing alone cannot show whether the final gummy contains the intended level of an active ingredient.

Appropriate gummy supplement testing can help evaluate finished-product specifications and, where applicable, support assessment of potency and stability. Recent industry analysis has also emphasized the importance of selecting suitable analytical methods when testing gummy products because sugars, flavors and other components can interfere with some testing approaches.

Finally, brands should consider packaging, storage and expected shelf life early in development.

These considerations point to a larger commercial question:

What Should a Gummy Supplement Manufacturer Be Able to Provide?

An experienced gummy supplement manufacturer should offer more than production capacity.

The development process should connect formulation, manufacturing and quality control.

This can include:

This integrated approach can help brands identify potential formulation and manufacturing challenges before moving into large-scale production.

For brands evaluating a manufacturing partner, Gummy Supplement Manufacturing should therefore be viewed as more than simply producing the final product. The value lies in how effectively formulation, production and quality considerations are connected from the beginning.

What Comes Next for Gummy Supplements?

The gummy category continues to evolve, but the next stage of competition may be less about creating another attractive flavor or shape and more about building reliable products.

The recent vitamin C testing provides a timely reminder: what happens inside a gummy can matter just as much as how the finished product looks.

For brands, that means asking better questions before production:

As these questions become more important, choosing the right OEM/ODM partner can become an important part of successful gummy product development.