To determine the right type of facial scrub for your specific skin type, such as sensitive skin or combination skin, it is important to consider the ingredients in the product. For sensitive skin, look for gentle exfoliants like sugar or oatmeal rather than harsh abrasives. For combination skin, a scrub that is non-comedogenic and balances oil production can be beneficial. It is also recommended to do a patch test on a small area of skin before using the product on the entire face to check for any adverse reactions. Consulting with a dermatologist can also help in determining the most suitable facial scrub for your specific skin type.