Formulating oil-based ingredients in hard capsule form presents unique challenges and opportunities for pharmaceutical and nutraceutical manufacturers. The difference between liquid and solid delivery systems becomes especially relevant when working with oil based ingredients.
Ingredients like omega-3, CBD, vitamin D, and essential oils, offer important health benefits due to how they interact with the body and their flexible use in different types of formulations. However, these same properties that make them effective also introduce specific formulation challenges that require careful consideration.
Unlike ingredients that dissolve in water, oils need strategies to ensure optimal absorption, stability, and product shelf life. This is especially important for vitamins like A, D, E, and K, herbal extracts, or oily substances that don’t mix easily with water.
These nutrients are absorbed through the lymphatic system, meaning they work best when carried in an oil-based environment.
The formulation of oils or semi-solids within capsules presents several technical and processing challenges that manufacturers must address:
In the case of oil-based products, the capsule plays an active role in protecting and delivering the contents, not just containing them. A good capsule must:
Choosing the wrong capsule can affect stability, reduce effectiveness, or even lead to product failure.
Working with oils, emulsions, or semi-solid ingredients requires a capsule that supports absorption, protects the contents, and meets quality and market expectations. This is precisely where liquid-filled capsules offer significant advantages.
LQ-CAPS® are two-piece capsules made specifically for oil-based and liquid formulations.
They help maintain the quality of the product from production through distribution and final use.
These Capsules are available in two material options:
To fully protect the contents, both types of capsules should be sealed using custom banding, which forms a smooth, secure band around the capsule. This seal helps prevent leaks, oxidation, and contamination, especially important for sensitive or high-potency ingredients.
The benefits of LQ-CAPS® extend well beyond basic encapsulation:
When it comes to oil-based formulas, the capsule does more than just hold the contents, it directly affects how well the product works. From improving ingredient stability to supporting better absorption, choosing the right capsule can make a real difference.
LQ-CAPS® are designed with these needs in mind, offering brands a reliable way to deliver high quality liquid and semi-solid formulations. Contact our specialists to discuss your formulation requirements.