Can Treated Sun Damage Return? BBL HERO and MOXI can be used to improve visible signs of sun exposure, including uneven tone, pigmentation, and other forms of photoaging. However, treating existing damage does not prevent the skin from being affected by future ultraviolet exposure. Sun damage develops gradually. Repeated exposure to UVA and UVB radiation can contribute to new pigment changes, uneven tone, and structural changes in the skin over time. This means that even when