MSM & Aldehydes Most people think of MSM as “just sulfur,” but one of its most powerful — and least talked-about — roles is its ability to support aldehyde detoxification . If you’ve been exposed to mold, Candida, paras/tes, fragrances, plastics, or environmental chemicals, this matters more than you think. Why Aldehydes Are a Problem Aldehydes are highly reactive, inflammatory, and neurotoxic compounds produced by: Mold and yeast (Candida releases acetaldehyde) Chemical VOC