oral glutathione not effective Augmented Absorption from Mucosa and its Effect on Skin Pigmentation: A Clinical Review Glutathione Injections For Skin Whitening:

Often patients with small thyroid nodules, less than 1 cm in diameter, and no risk factors for thyroid cancer can simply be reexamined or imaged by sonography to be sure the nodule is not enlarging

doi:10.5144/0256-4947.2022.83 [13] Ventura M, Melo M, Carrilho F

Local injection carries additional risk of tissue irritation relative to subcutaneous administration away from injury

We are thankful to the Coordination of Superior Level Staff Improvement (CAPES) for the scholarship n 88887.674376/2022-00 (JC) and 88887.826358/2023-00 (DA), and the Fundao de Amparo Pesquisa do Estado de So Paulo (FAPESP, So Paulo Research Foundation), scholarships to JC n 2022/16060-1, to AP n 2023/09921-3, FAPESP Process 2021/11936-3 and 2023/01554-1 (RF)