That’s our clinically-studied bioavailable CoQ10. CoQ10 is an ingredient that supports cellular energy production and is clinically studied to help support follicular health. Even if it doesn’t look dissolved, as with all Ritual products, you can trust that what you’re reading on the label is what you’re getting, so we’ve intentionally included enough CoQ10 in the formula, designed to help ensure you are getting the dose as promised, even if there are yellow particles left behind after drinking.*