We all know that awkward moment when suddenly someone is staring at your teeth. You undergo the horrifying torture of the self checklist: Spinach between your teeth? Nope. The attractive red lipstick you’ve worn suddenly smudged all over your pearly whites? Oh yeah. No one likes to have lipstick wear off after just applying it or to have some smeared teeth with lipstick in front of people. It is not only annoying but also humiliating.
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