As effective adjuvant components are not regulated with the same level of strictness by the EU (from which the UK derives the vast majority of its current regulation), there is a high likelihood that some effective adjuvant components may be synonyms. Ingredients could also be left off the ingredient list, as legislation governing this is fairly permissive. An example of poor comparability is that alcohol ethoxylates are listed as distinct to alkoylated alcohols in the Irish dataset, despite being nested within them chemically. This was not corrected for, as the literature is too sparse to meaningfully re-categorise them. Broad estimates of diversity 130 are likely be truthful and unchanged by this. 131