"Making a water-based product self-preserving requires a careful balance of natural ingredients. Using these, it is possible to eliminate the need for synthetic preservatives."
Product inventor Jack Constantine
Preservatives are substances added to food and other products to keep them fresh for longer. They ensure that perishables aren't affected by microbial spoilage, retain a long shelf life, and that consumers are protected from any potential infection. The result is an insurance policy, giving you peace of mind every time you touch a product.
What is Free Water?
Free water, also known as 'water activity,' refers to water that microbes can use to reproduce. Like all living things, microorganisms need water and nutrients to grow, so water-based products like shower gels provide the perfect environment for bacterial reproduction. To keep perishables safe and fresh, free water must either be reduced or microbial growth must be controlled with a preservative. Synthetic preservatives like parabens can be used to stop microbes from developing in water-based products. Absorbent natural materials like clay and water-soluble compounds like salts and sugars can also be used to reduce the amount of water that microbes are able to access. Solid, naked products have minimal water content which means they don’t need added preservatives.
The environmental cost of synthetic preservatives