Using a face razor can have both benefits and potential side effects. On the positive side, it can exfoliate the skin, remove dead skin cells, and provide a smoother complexion. However, improper use or using a dull razor can lead to side effects like nicks, cuts, redness, irritation, and ingrown hairs. It's essential to use a sharp, clean razor and follow proper techniques like using lubricating shaving cream or gel, shaving in the direction of hair growth, and moisturizing afterward. Those with sensitive skin or certain skin conditions should exercise caution and may want to consult a dermatologist before using a face razor.