Richard Glogau classification determined according to the degree of photoaging, wrinkling can be:
Type I: young people between 20 and 30 years. Early signs of photoaging wrinkle. There pigmentary changes.
Type II patients between 30 and 50 years. Moderate signs of aging. Alteration of elasticity to the skin pinch. The face resting no wrinkles, but there are moving in the corner of the mouth and zygomatic arch.
Type III: over 50 years. No visible wrinkles in the absence of movement. There lentigines, solar keratoses and telangiectasia.
Type IV: over 60 years. Widespread wrinkles on the face, neck and chest. Dermal thickness reduction.