Obagi Sun Shield broad-spectrum sunscreens should be your first line of defense against the harmful effects of sun exposure across all skin types and concerns. These specially formulated broad-spectrum sunscreens are ideal for daily protection against the sun. And as one of the forefront causes of pre-mature aging of skin, proper protection can help prevent signs of skin aging while enhancing your protection against skin cancers. You can shop the entire Obagi Sun Shield collection below, all guaranteed to be 100% authentic.