Gummies have rapidly moved from a fun confectionery treat to one of the most in‑demand dosage formats in the nutraceutical world. Consumers love them for their taste and convenience but behind every great gummy is a surprising amount of science, engineering and formulation expertise.
From achieving vibrant, stable colors to preventing stickiness and ensuring shelf‑life, gummies present a unique set of challenges. Here’s a look at the key factors that shape gummy success and how Coloron solutions help brands stand out.
Gummies, unlike tablets or capsules, function as intricate systems. Their water activity, pH, gel-based composition, high moisture level, and translucent characteristics render them highly sensitive to multiple factors:
|
Actives The Active Nutritional Ingredient (ANI) determines the buffering system required to activate pectin or alternative gelling agents, making each gummy formulation distinct and complex. |
|
Type of Actives While some ANIs, such as vitamin C, B-vitamins, and botanicals (e.g., ashwagandha, beet root, turmeric), are well characterized, others—including magnesium citrate, tricalcium phosphate, and creatine monohydrate—present difficulties due to their impact on gelation and alkaline nature. |
|
Choice of Pectin or Gelling Agent Selection varies according to the ANIs used; certain pectin’s pair optimally with botanicals, while others are better suited for mineral-rich formulations. Gelatine can be used with higher pH and lower temperatures. |
|
Achieving Correct Brix Depending on manufacturing processes and actives varying amounts of water must be incorporated and evaporated, adding to the complexity of gummy formulation. |
|
Types of Gummy Bases Sugar-free bases such as polyols and inulin may present additional challenges, often resulting in stickier products or weaker gel structures. |
|
Humidity Excessive moisture causes gummies to become sticky, soft, or merge together, whereas insufficient humidity leads to hardening, cracking, or staleness. Proper packaging and humidity management are therefore vital. |
|
Heat and Processing Conditions During production, gummy mixtures typically require temperatures between 90–110°C, potentially degrading actives, pigments and altering color. |
|
Oxygen Exposure Oxygen-sensitive components—including natural pigments and actives—can deteriorate rapidly, compromising potency and visual appeal. |
|
Natural Pigment Variability Non-synthetic pigments (such as spirulina and beet extracts) may shift in coloration owing to heat, pH, oxidation, and even seasonal changes. Translucent or ineffective packaging can also cause color variation. |
|
Taste Variability Fluctuations in flavor may arise from uneven distribution, breakdown of flavor compounds during thermal processing, interactions with actives, and alterations throughout shelf life. |
Thoughtful formulation is essential to successfully overcome these complexities.
Manufacturing Challenges: Protecting Nutraceutical Actives
Gummy manufacturing can expose active nutraceutical ingredients (ANI) to stress conditions, especially the high temperatures required to process and deposit gelatin- or pectin-based masses. This can compromise heat-sensitive actives and, in practice, drive the use of “overages” (adding extra ANI to compensate for processing losses), increasing cost where the active is often the most expensive component of the dosage form.
Beyond processing, some actives may also be vulnerable to degradation in the gastrointestinal environment. Where this is a concern, formulations may be designed with additional protection strategies to help support delivery and performance.
Most gummy formulations share a similar base structure:
Since gummies are predominantly marketed over-the-counter (OTC), appearance and palatability is often what makes or breaks the consumer’s experience, especially in a crowded marketplace.
Benefits of Opatint include:
Opatint has been evaluated across dozens of pigment types including non-synthetics, lakes, dyes, oxides and specialty pigments to understand how each performs under real gummy processing conditions. The testing highlights:
Best performers for gummies: Red radish, purple corn, red iron oxide, carmine, red #40, turmeric, riboflavin, safflower, yellow iron oxide, yellow #5, yellow #10, chlorophyllin, blue # 1 and blue # 2, titanium dioxide, caramel (class I & IV) and vegetable carbon.
Most challenging pigments: Spirulina, red beet and calcium carbonate.
These insights help formulators choose colors and develop a plethora of shades that look great on day one and stay consistent throughout the product’s lifecycle.
Gummies are naturally tacky — great for chewiness but difficult for manufacturing and packaging.
Traditional approaches include mold pre-lubrication and coating gummies in vegetable oil. But too much oil creates a greasy feel and can cloud packaging.
Colorcon’s upcoming label-friendly coating for gummies is designed to reduce tackiness while supporting a clean ingredient profile. Early trials show less sticking after one month across a range of humid conditions. The coating can be applied without special equipment, as it remains a liquid suspension at room temperature and it does not add unwanted taste to the gummies.
Taste Variability: Maintaining Flavor Consistency and Taste Masking
Complementing robust formulation and packaging strategies help preserve flavor integrity throughout shelf life. By taking a holistic approach—combining technical expertise, thoughtful ingredient selection and controlled atmosphere packaging Colorcon supports manufacturers to deliver gummies with consistent, reliable taste every time.
Protective Packaging: Where Stability Begins
Even the best‑formulated gummies need the right packaging to survive distribution and stay consumer‑ready. Whether you’re looking for moisture or oxygen control, Colorcon’s extensive range of controlled atmosphere packaging solutions ensure your product remains stable throughout its shelf-life.
Common Storage Risks: Oxygen and Moisture
Gummies can encounter stability issues and often have a shorter shelf life than other dosage forms. Two of the most common external drivers are oxygen and humidity, which can affect both potency and consumer-perceived quality (appearance, texture and palatability) if not controlled.
Oxygen degradation: A decrease in potency can result from oxidative reactions (for example, autoxidation and chain oxidation pathways). While the underlying mechanisms are well understood, inhibiting oxidation in real-world supply chains can be challenging, particularly for oxygen-sensitive actives and some natural pigments.
Moisture degradation: Humidity is often the primary concern for gummy texture. Even small shifts in moisture can lead to stickiness, softening or color change, while overly dry conditions can cause surface cracking, increased hardness and syneresis. Maintaining the right internal pack humidity is critical to preserving the intended “chew.”
Because moisture control is so important, some manufacturers individually wrap gummies to reduce sticking—an approach that can conflict with sustainability goals. Where feasible, a clear label-friendly coating can help reduce tackiness and various controlled atmosphere packaging solutions can maintain quality and shelf-life.
Colorcon’s range of solutions allow brands to tailor humidity and oxygen levels to a gummy’s specific water activity (aw), ensuring consistent texture and potency.
Our Stablus® program simulates packaging performance across climate zones, helping companies shorten time to market, optimize packaging costs and improve long-term stability predictions.
Bringing It All Together
Creating a high-quality gummy that delights consumers requires thoughtful formulation and processing, stable and consistent color, protection of sensitive actives, precise control of water activity, and smart packaging that manages both humidity and oxygen throughout shelf life.
Colorcon brings all of this together — helping brands deliver gummies that look great, taste great, and maintain their quality from factory to consumer, supported by expertise in color systems, coatings and controlled-atmosphere packaging.
Further Reading
Webinar: Mastering Gummy Formulation
Gummies have high moisture content and a gel-based, translucent structure, making them sensitive to humidity, heat, oxygen, and pigment variability. Those factors can quickly impact texture, color and shelf life if they aren’t carefully controlled.
Natural pigments can degrade or shift due to heat, pH, light, oxygen exposure and process conditions, leading to hot spots, streaking and batch-to-batch variation. Seasonal variability in some botanical sources can add even more inconsistency.
They’re designed for exceptionally uniform dispersion and improved stability during heating, mixing and storage, supporting reliable batch-to-batch color consistency. They can also be custom-made to help maintain brand-specific color targets.
A: Gummies are naturally tacky, and changes in humidity can make them soften and stick together during storage. Label-friendly coating approaches and packaging strategies that control humidity can help reduce sticking without creating an oily or greasy feel. Contact Colorcon for more information.
Controlling internal pack humidity with EQIUS® Equilibrium RH Stabilizers helps prevent gummies from hardening or softening, while PharmaKeep® and Ageless® oxygen absorbers help reduce oxidative damage to sensitive actives and natural pigments. Together, they support more consistent quality across distribution and shelf life.