Detailed answer

Toners are primarily used to remove excess dirt, oil, and residues from the skin's surface and to balance the pH levels. They are not designed to address sagging skin concerns. Sagging skin on the arms is commonly caused by a loss of collagen and elastin, as well as a decrease in muscle tone. To address this issue, it is recommended to focus on exercises that target the arm muscles and to consider treatments such as radiofrequency, ultrasound, or laser therapies that can stimulate collagen production and tighten the skin. Furthermore, maintaining a healthy diet, staying hydrated, and using moisturizers with ingredients like retinol or peptides may help improve skin elasticity and appearance over time.