Do OEKO-TEX and GOTS certifications ensure clothing is safe for fertility?

OEKO-TEX Standard 100 and GOTS (Global Organic Textile Standard) are the two most relevant certifications for reproductive health because both test finished textiles for endocrine-disrupting chemicals. OEKO-TEX screens for over 350 harmful substances including BPA, phthalates, formaldehyde, heavy metals like antimony, and certain PFAS compounds. Products carrying this certification have been laboratory verified to be below established safety thresholds for these chemicals at the point of consumer purchase.

GOTS goes a step further by regulating the entire supply chain from fiber production through final finishing. It requires that at least 70% of fibers are certified organic and prohibits a wide range of toxic inputs during manufacturing, including endocrine-disrupting dyes, chlorine bleaches, and formaldehyde-based finishes. The combination of organic fiber content and restricted chemistry means GOTS-certified garments are among the safest options available for anyone concerned about chemical exposure affecting fertility.

While no certification can guarantee zero risk, these standards represent the most rigorous independent testing available for consumer textiles. For couples trying to conceive or women who are pregnant, choosing OEKO-TEX or GOTS certified clothing, especially for items worn closest to the body, is a science-backed way to reduce exposure to known reproductive toxicants. ONDU prioritizes brands that carry these certifications, making it easier to find verified safe options across activewear, sleepwear, and everyday essentials.