Used when describing the action of physically spreading a substance on the body or another surface. After getting a tattoo, you need to rub in the ointment gently.
Pro Tip 2/3
Thorough Application
Implies that the substance needs to be fully absorbed or adequately spread into the area. Rub in the conditioner until your hair feels smooth.
Pro Tip 3/3
Personal Care
Commonly used in contexts related to skincare, haircare, or other beauty routines. Remember to rub in your serum for the best effect.