Reader says, A friend told me recently that she’s been applying a yellow powder called Flowers of Sulphur (FOS) to gain relief from her various skin ailments. Is FOS related to or comparable to MSM? For instance, could I take
Reader says, A friend told me recently that she’s been applying a yellow powder called Flowers of Sulphur (FOS) to gain relief from her various skin ailments. Is FOS related to or comparable to MSM? For instance, could I take