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In the pharmaceutical and nutraceutical industries, gelatin capsules are widely used for encapsulating various substances. These capsules come in two primary forms: soft gelatin capsules (softgels) and hard gelatin capsules. While both serve the purpose of delivering medications or supplements, they differ significantly in terms of composition, manufacturing process, and applications. In this blog post, Wecaps will explore the differences between soft and empty hard gelatin capsules for sale, shedding light on their unique characteristics and helping you understand which type may be more suitable for your needs.
Composition:
Soft Gelatin Capsules:
Soft gelatin capsules are made of a gelatin shell that contains a liquid or semi-solid fill. The gelatin used is typically derived from animal sources, such as bovine. This gelatin shell is flexible and elastic, allowing for easy swallowing and digestion. Softgels are often used for substances that are oil-based or have low melting points, as the liquid or semi-solid fill can be easily encapsulated within the gelatin shell.
Hard Gelatin Capsules:
Hard gelatin capsules, on the other hand, consist of two separate pieces: a body and a cap. Both the body and cap are made of gelatin, but they are rigid and do not have the same flexibility as softgels. The gelatin used in hard capsules is also derived from animal sources. Hard capsules are typically used for encapsulating dry powders, granules, or small tablets. The two-piece design allows for easy filling of the desired substance and provides protection against moisture and external factors.
Manufacturing Process:
Soft Gelatin Capsules:
The manufacturing process of soft gelatin capsules involves several steps. First, the gelatin is mixed with plasticizers, such as glycerin or sorbitol, to increase its flexibility. Then, the gelatin mixture is formed into two sheets, which are then brought together to form a cavity. The liquid or semi-solid fill is then injected into the cavity, and the capsules are sealed using heat or ultrasonic welding. Softgels can be produced in large quantities using high-speed encapsulation machines.
Hard Gelatin Capsules:
The manufacturing process of hard gelatin capsules is relatively simpler compared to softgels. The gelatin is mixed with water and other additives to form a viscous solution. This solution is then poured into two separate molds, forming the body and cap of the capsule. After drying, the capsules are stripped from the molds and trimmed to the desired size. The body and cap are then joined together, creating a complete capsule ready for filling. Hard capsules can be filled manually or using automated filling machines.
Applications:
Soft Gelatin Capsules:
Soft gelatin capsules are commonly used for delivering oil-based medications or supplements. The liquid or semi-solid fill allows for better absorption and bioavailability of the encapsulated substance. Softgels are often used for vitamins, fish oil, herbal extracts, and other dietary supplements. They are also used for pharmaceutical products that require controlled release or enhanced solubility.
Hard Gelatin Capsules:
Hard gelatin capsules are widely used for encapsulating dry powders, granules, or small tablets. They provide an effective means of delivering medications or supplements that are not oil-based. Hard capsules are commonly used for antibiotics, pain relievers, antacids, and other solid dosage forms. They offer protection against moisture, light, and air, ensuring the stability and integrity of the encapsulated substance.
Soft capsules are flexible and contain liquid or semi-solid fillings, while hard capsules are rigid and are available in dry powders or small tablets. Whether you need better absorption, controlled release, or protection against external factors, both capsule formats have what you need. Wecaps is committed to providing empty gelatin capsule OEM/ODM solutions tailored to customers' specific requirements!
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