Better yet,
remove the laptop keyboard. Hold the entire keyboard keys and all, under warm running water for a few minutes. If the contaminants are stubborn use naptha (lighter fluid) or dish washing liquid to disolve remaining contaminants. Rinse well with warm water.
Gently shake out any excess water and place upside down on a towel to dry completely. Reinstall the keyboard
Desktop keyboards can be placed inside a dishwasher set on coolwash and dry, (not on the pots and pans setting) and washed. Dry them out well before plugging them back in and using them