As the core carrier of modern medicine and health care product packaging, gelatin capsules are widely used in the global market for their safety and efficiency. Its core component comes from natural animal collagen, which is scientifically processed to form stable hollow hard capsules that meet food grade or pharmacopoeia standards.
The main raw material of gelatin capsules is gelatin, a protein derivative extracted from pig skin or cow skin. By hydrolyzing collagen and removing non-collagen components, gelatin with gel properties is finally obtained. The molecular structure of gelatin gives the capsule good film-forming properties, flexibility and plasticity, and can maintain a stable shape under different humidity environments. In addition, gelatin meets the safety standards of the Joint Expert Committee on Food Additives (JECFA) and national pharmacopoeias (such as USP, EP), ensuring its wide use in the fields of medicine, health care products and food.
In addition to gelatin, the components of the capsule also include water and trace additives. Water is the key medium for gelatin dissolution and molding, while additives (such as glycerol or sorbitol) are used to adjust the elasticity and anti-brittleness of the capsule to ensure its integrity during transportation and storage. Some special-purpose capsules may contain opacifiers or pigments, but these ingredients must meet strict regulatory requirements to avoid adverse effects on the human body.
At the application level, gelatin capsules are divided into two categories: hard capsules and soft capsules. Hard capsules are usually used for powdered or granular drug filling, while soft capsules are suitable for oily liquids or fat-soluble ingredients. Due to the biocompatibility of gelatin, these capsules are easily soluble in the human body and help to release drugs quickly.
As the global demand for health products grows, the gelatin capsule market continues to expand. Although plant-based capsules (such as hypromellose capsules) are gradually emerging as alternatives, gelatin capsules still dominate with their mature production processes and wide applicability. In the future, the gelatin capsule industry will further optimize environmental performance and diversified formulas while maintaining safety and functionality to meet the diverse needs of the international market.
