The skeptic in me was surprised to find out that my teeth went two shades lighter—after my first session.

Source: Manila Bulletin (https://mb.com.ph/2020/11/25/the-holo-teeth-whitening-kit-helped-me-overcome-my-insecurity-with-smiling/?utm_source=rss&utm_medium=rss&utm_campaign=the-holo-teeth-whitening-kit-helped-me-overcome-my-insecurity-with-smiling)