Not All Vitamins Are Created Equal: Why Your Supplements Might Be Failing You

6. Online Shopping vs. In-Person Purchase
When shopping online, be wary of unofficial sellers on platforms like Amazon or third-party sites, as there is a high probability of counterfeit or expired products. The best way is to buy directly from the manufacturer’s website or reputable online pharmacies that have a clear supply chain. When buying in person, always pay attention to the product's seal and its storage conditions (e.g., away from light and heat).