When this happens, it is called Oxidation which occurs naturally in supplements over time as they are exposed to air. However, oxidation does not reduce or alter the effectiveness of the supplement ingredients or the overall viability of the product.
Many factors can contribute to oxidation including storage conditions. We typically recommend keeping supplements stored in their original containers; storing them in a cool dry place away from heat, light, air, and moisture.
All of Dr. Myers's supplements are produced in small batches to ensure product quality. To find out more about small batch production and product testing please see our help center article linked below:
Please note that the color of our supplements may also vary slightly from batch to batch and you can learn more about color variations in the below article: