Science also guides us to strictly limit the use of ‘essential oils’ because they contain potentially irritating allergens like citral, linalool and farnesol. Avoiding these common sources of irritation in ‘natural’ products is a key objective of our product development process. That’s why our fragrances have been screened to trace levels for all of the 26 fragrance allergens that EU law regards as potentially harmful. All 26 of these allergens are now required by law to be flagged on the ingredients panel, but you’ll never find any of them on our list.

All our skincare products undergo dermatological tests and have been certified as non-irritant. But because of our focus on the highest standard of skin-friendliness, we also have a clinical programme of testing on sensitive skin. In these trials, we maximise the chance of a bad reaction by keeping the product occluded on the skin for 96 hours on people who report that they have healthy but sensitive skin. That’s how we can scientifically claim that all of our facial products are clinically approved for sensitive skin.