The .essence. bye panda eyes! vol. def. masc. is a smudge-proof mascara that impressed Jordan in their video review. They mentioned that this mascara stays on their eyes all day, unlike their previous mascaras that used to smudge. Jordan praised the formula, stating that it greatly improved the appearance of their eyes. They gave it a perfect rating of 10 out of 10 and highly recommended it. Overall, this mascara seems to be a reliable choice for those looking for long-lasting and smudge-proof results. However, without further information, it is difficult to assess any potential drawbacks of the product.