I was constantly bothered by the yellowish tint, but after getting the whitening treatment, I could definitely see a difference when I looked in the mirror. My overall tone feels more even, so I feel less self-conscious when I smile compared to before. It didn't look excessively bright, but rather naturally refined, which I liked. People around me also told me my vibe has changed, so that really makes the difference. Right now, I'm just going about my daily life to see if I can maintain this look. ^^