From: alterrapure
However, compared to a GOTS or Textile Exchange OCS, Oeko-Tex is far from the best if for no other reasons than it's allowance of formaldehyde, lax restrictions on pesticide, and no relevant environmental policy. If buying an Oeko-Tex certified product, be sure to also check the Oeko-Tex database
[ The above is a very quick summary much more detail can be found by clicking