 Oral consumption of "Polypodium leucotomos" extract has also been studied for the treatment of dermatologic disorders including melasma, vitiligo, psoriasis, polymorphous light eruption, atopic dermatitis, postinflammatory hyperpigmentation, photoaging and skin cancer.Oral consumption of "Polypodium leucotomos" extract has been shown to protect the skin from ultraviolet light damage.Clinical studies have shown that "Polypodium leucotomos" extract provides photoprotection against the effects of both UVB and UVA light.