If you’ve seen the Hismile Whitening Serum advertised on social media, you might be attracted by its promise of “instant whitening.”
The good news is that this product does provide an immediate visual whitening effect, but the change is only temporary.
I tried applying the serum to one side of my teeth to see the color difference between the treated and untreated areas. After a few minutes, the side that was applied with the cotton swab looked noticeably whiter.
But by the next morning, I found that my teeth had returned to their original color and the color of both sides was consistent. According to Hismile’s instructions, each tooth needs to be applied for about 30 seconds, which means that it will take about 7 minutes to evenly color all visible teeth, which is not an easy process.
Overall, this color correction serum is more suitable as a temporary solution to enhance the brightness of teeth, suitable for night parties or special events.
But if your goal is to remove long-term tooth stains, this product may not meet your needs.
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