When selecting a supplement format, understanding shelf life is a key consideration for both manufacturers and consumers. The shelf life of a dietary supplement is influenced by its formulation, ingredients, and physical state, leading to inherent differences between gummies, capsules, and tablets.
Factors Influencing Supplement Shelf Life
Shelf life is primarily determined by a product's stability-its ability to retain its identity, strength, quality, and purity over time. The main factors include:
- Moisture Content: Water activity is a critical driver of degradation.
- Ingredient Stability: Some vitamins and active compounds are sensitive to oxygen, light, or heat.
- Physical Format: The structure and density of the delivery system.
Comparing Common Formats
Gummy Supplements
Gummies have a unique profile. Their gelatin or pectin base and higher moisture content can make them more susceptible to environmental factors. Typically, well-formulated and properly packaged gummies have a shelf life ranging from 18 to 24 months. They may be prone to changes in texture, color, or flavor over time if exposed to heat or humidity.
Capsules (Softgels and Two-Piece)
Capsules, particularly softgels, offer an excellent barrier against oxygen and moisture for liquid or oil-based ingredients. Two-piece hard capsules protect powdered blends. When stored correctly, capsules generally have a shelf life of 24 to 36 months. The sealed environment helps preserve potency effectively.
Tablets
Tablets are compressed powders, typically with the lowest moisture content of the three formats. This dense, dry state often makes them very stable. Tablets commonly boast the longest potential shelf life, frequently rated at 24 to 36 months or more, as the compression process can help protect ingredients from air and light.
Ensuring Product Longevity
Regardless of format, proper storage is essential to achieve the stated shelf life. Consumers should always:
- Follow the storage instructions on the label (e.g., "Store in a cool, dry place").
- Keep the container tightly closed.
- Use the product by the "best by" or expiration date.
At KorNutra, our formulation and manufacturing processes are designed to maximize the stability and shelf life of every product we produce, ensuring quality from our facility to the end user.