Of 17 products tested, only 11 met the company's standards.
Consumerlab.com recently tested 17 commercial omega-3 and omega-6 oils, finding that only 11 passed purity standards.
The products tested included black currant, borage, flax seed, and evening primrose oils-products intended to contain healthful amounts of ALA (alpha-linolenic acid) or GLA (gamma-linolenic acid).
Two of the products were intended for pets, as some of these oils are given to pets to help maintain skin and coat health.
Products that missed the mark were identified as spoiled or containing ingredient levels that did not match up with product labels.