Vaseline or Petroleum Jelly is good to apply to skin but the Vaseline cannot be absorbed by your skin like other skin moisturizers can.
So if you need moisturizers that absorb into your skin then you need to use regular moisturizing lotions to absorb it into your skin.
However you can apply some petroleum jelly onto your skin after rubbing in the moisturizing lotion and the Vaseline will help keep the moisture sealed in so that your skin doesn't dry out as fast.