COR-Performance Creatine

Buyers rate strength and performance gains at 4.5 out of 5, and owners report noticeable strength improvements from regular use. The product is recognized as a gym staple that works for most people.

Safety and ingredient transparency rate poorly at 2 out of 5 from buyers. At least one user had a serious allergic reaction to an undisclosed filler and ended up in the ER, and some versions lack a complete ingredient list beyond creatine, making it impossible to identify which component caused the reaction.

Buyers rate taste and mixability at 3.5 out of 5. The product comes in both flavored and unflavored versions, with some buyers praising the flavor, though mixability feedback is mixed.

Buyers rate digestive tolerance at 3 out of 5, indicating some users experience stomach sensitivity, though this is not a universal problem.

Product packaging and instructions rate at 2 out of 5 from buyers. The packaging instructions are unclear enough that users struggle to understand dosing or identify allergens, which is especially problematic given the undisclosed filler issue.

Anyone with known sensitivities to fillers or additives should avoid it, since the incomplete ingredient labeling makes it impossible to know what you're consuming. Those prioritizing ingredient transparency over price may want to look elsewhere.