Kristina, in her video review of the I love extreme vol. mascara by essence, mentioned that she usually doesn't apply mascara to her bottom lashes. However, she accidentally poked her eye while applying this mascara, emphasizing the need to be careful. She only applied it to her top lashes, and she mentioned that she would try it again to provide a more comprehensive review. Despite the mishap, she didn't mention any specific benefits or drawbacks of the product. Overall, it is difficult to assess the effectiveness of the I love extreme vol. mascara based on Kristina's brief review.