1. Product Function
Pharmaceutical gelatin serves as a key film-forming agent in vitamin coating. It forms a smooth, protective layer around vitamin tablets or granules, acting as a barrier between the active ingredients and external factors (e.g., moisture, light, or stomach acid). This coating helps maintain the vitamin’s stability, controls dissolution, and enhances overall product integrity.
2. Main Advantages
Protective Barrier: Shields vitamins from moisture, oxidation, and environmental stress, preventing degradation and extending shelf life.
Controlled Dissolution: Enables targeted release (e.g., in the small intestine) by adjusting coating thickness, ensuring optimal absorption of fat-soluble vitamins (A, D, E, K) or sensitive nutrients.
Smooth Texture: Creates a glossy, easy-to-swallow surface, masking unpleasant tastes or odors and improving patient compliance, especially for chewable or daily vitamins.
Compatibility: Works well with most vitamin formulations (including minerals and herbal extracts) without reacting with active ingredients, ensuring formulation stability.
3. Applications
Tablet Coating: Used for coated vitamin tablets (e.g., multivitamins, B-complex) to protect ingredients and enhance swallowability.
Granule Coating: Applied to vitamin granules in sachets or chewable blends to prevent clumping and preserve nutrient potency.
Targeted Release Formulations: Enables delayed dissolution for vitamins sensitive to stomach acid (e.g., vitamin C or probiotic-blended vitamins), ensuring they reach absorption sites intact.
Pediatric/Geriatric Vitamins: Improves palatability and ease of use in formulations designed for children or older adults, boosting adherence to daily intake.