In March 2020 Ethical Consumer viewed Aesop's website for information on any use of nanotechnology. In October 2017 it had stated:
"We use Zinc Oxide in Sage and Zinc Facial Hydrating Cream – SPF15 and Protective Lip Balm SPF30 because of its unparalleled ability to coat the skin and create a barrier to UV radiation. In its (newly defined) nano form, Zinc Oxide also improves dispersion of sunscreens – products containing it appear ‘invisible’ when applied to the skin....
While scientific research into the safety of nanotechnology continues, we believe daily use of a high-quality sunscreen is of crucial importance in protecting the skin from the well-documented dangers of exposure to UV radiation.
Because of this, and because this material has been independently evaluated and approved on safety grounds, we stand by our decision to use Zinc Oxide."
Ethical Consumer considered Nanotechnology to be a controversial technology whose safety had not been fully established. While the statement could not still be found on the website the ingredients list of the products mentioned contained "Zinc Oxide (nano)".
Aesop lost half a mark under Controversial Technology.
www.aesop.com (26 October 2020)