Hello. This is the 15th installment of my "Purchased with My Own Money" reviews. This time, it's about oral care. I'm currently using Gargrin from Dong-A Pharmaceutical. First off, I like it because it's additive-free and low-irritation. The liquid penetrates deep into the spaces between teeth that toothbrushes or dental floss can't easily reach, making it great for oral cleansing. It also has antibacterial and fluoride coatings, so it helps prevent cavities. Gargling is convenient, so I use it frequently even after brushing my teeth.