Polypodium leucotomos as an adjunct to the treatment of vitiligo

To the Editor: We read with interest Thompson and Kim's review of dietary supplements in dermatology with focus on zinc, vitamin D, nicotinamide, and Polypodium leucotomos.1 The authors discuss the use of P leucotomos in photoprotection, idiopathic photodermatoses, melasma, and actinic keratoses clearance, finding the most evidence to support the use of this supplement to reduce sunburn frequency and intensity.1 We believe that the use of P leucotomos as an adjunctive treatment for vitiligo has been overlooked.