I see that Briogeo products are 90-100% natural. Why aren't they all 100% natural?Updated a year ago

Briogeo uses many ingredients that are certified organic, natural, or naturally derived, and we use some (safe!) synthetic ingredients, too. We aim to use the highest amount of naturally-derived ingredients in every product, as possible, without sacrificing product performance. However, there are some non-natural ingredients we use in our products to ensure shelf life, product efficacy, and product stability. The small % of non-natural ingredients we use are deemed safe and non-toxic by the Environmental Working Group (EWG) and are only used to ensure the utmost product quality and performance.