When I put on lipstick, my teeth look unusually yellow.
I'm looking into whitening... I also tried the whitening strips called White Now that stick to the teeth.
But when I wear it, my teeth feel a bit sensitive, and I produce a lot of saliva, so I can't do it frequently.
I heard that nearby dental clinics offer touch-ups for whitening at 700,000 won, but I'm worried that whitening might weaken my teeth.
They say that whitening doesn't last long and the color reverts, but do you think it's still worth trying?
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