Yes, this machine can be used on larger areas such as the arms and legs, not just the face. Its diamond microdermabrasion function may help improve rough skin texture and the appearance of fine lines through gentle exfoliation. However, **crepey skin is often caused by thinning and loss of elasticity**, so this device may improve skin smoothness but cannot significantly tighten loose skin. If your skin is very thin or fragile, we recommend consulting a dermatologist before use, as exfoliation and suction may cause irritation or bruising.