If you’re asking whether petroleum jelly (Vaseline) can remove a skin tag overnight, there’s no good evidence that it can. Petroleum jelly can moisturize and protect irritated skin, but it does not destroy skin tags.
Dermatologists recommend not cutting, tying, burning, or chemically treating a skin tag at home, because this can cause bleeding, infection, scarring, or accidentally damage a different type of skin growth. AAD+1
For a genuine skin tag, a dermatologist can usually remove it quickly by snipping, freezing (cryotherapy), or cautery. AAD
If you want, I can also explain safe home care for a skin tag while you wait for removal.
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