Many herbal supplement tablets contain complex formulas with multiple plant extracts. Due to the intricate composition of these extracts, substances like polyphenols and flavonoids are prone to oxidation and discoloration during storage, and potential interactions exist among different components, making shelf-life management quite challenging. Food-grade magnesium oxide can help stabilize the entire formulation system.
Magnesium oxide exhibits good chemical inertness. At appropriate dosage levels, it does not react with the vast majority of herbal extracts. At the same time, it can buffer the pH of the system, inhibit oxidative degradation induced by certain acidic substances, and delay the deepening of tablet color and flavor deterioration. The powder can also absorb trace amounts of moisture within the system, reducing moisture-mediated oxidation reactions and extending the stability period of the finished product.
Herbal extract powders are generally overly fine and highly viscous, making direct compression prone to sticking/picking and soft tablets. The addition of magnesium oxide improves powder flowability and compactibility, enhances tablet hardness, and reduces poor friability. The difficulty in herbal formulations lies in the significant differences among components; different extracts vary in hygroscopicity and pH, meaning there is no universal addition scheme, and each formula requires individual trial testing.
Messi Biology supports and provides sample batches for formula R&D and testing. Our engineers can collaborate with manufacturers to conduct accelerated stability tests, continuously observing changes in tablet color and active ingredient content under constant temperature and humidity conditions to evaluate the compatibility between magnesium oxide and herbal extracts. With strict control over heavy metals, the raw material complies with the rigorous testing standards of herbal health supplements, helping brands preserve herbal activity while improving tablet manufacturability and storage stability.