There is no harm in applying Vaseline on your lips. On the contrary, it can moisturize your lips.

Vaseline is mainly a chemically inert hydrocarbon and has no bactericidal ability; however, it is not hydrophilic and will not be absorbed. When applied to the skin, it can form a film on the surface to prevent moisture from evaporating easily. Dissipated, it can keep the skin moist and prevent bacteria from the air from coming into contact with the skin, thereby reducing the possibility of infection.

When the weather is dry, Vaseline can be applied to the face, hands, feet or body skin to moisturize it. Apply to the lining of the nasal cavity to prevent bleeding due to excessive dryness, or people with nosebleeds can apply to the lining of the nostrils to stop further bleeding. It can be used as a lip balm to apply on the lips. Its oil content can keep the lips moist.

Extended information:

Notes

Vaseline should not be used in the following situations:

First, it is best not to use it when you have just been burned. , otherwise the heat will not be dissipated and will affect the healing of the wound.

Second, do not use it when your nose is blocked, because Vaseline will affect the ability of nose hairs to clean dirty air.

Third, it is best not to use condoms. Because Vaseline is fat-soluble, it can react with rubber and cause condoms to break.

Baidu Encyclopedia--Vaseline