Angie, in her video review of the cosmetic product "bye panda eyes! vol. def. masc. by .essence.," demonstrates the effectiveness of the mascara. She mentions that she lacks eyelashes but finds the mascara's brush to be thick and nice. The mascara provides volume and enhances the appearance of her lashes. Angie notes that she needs to curl her lashes, but overall, she finds the result to be cute. The "bye panda eyes! vol. def. masc. by .essence." mascara seems to be a promising product for those looking to add volume to their lashes, although it may require additional steps like curling for optimal results.