The Science

Nanotechnology

Nanotechnology is the name for the process of scientific engineering using materials at a very tiny, molecular scale. The results of this process are called nanoparticles. A nanoparticle is less than one billionth of a metre, which is about one hundred thousandth the width of a human hair.

Inorganic UV filters use tiny particles that are often less than this size therefore are sometimes classified as nanoparticles.

"One of the most commonly used nanomaterials is titanium dioxide. Titanium dioxide is a mineral that is present in our natural environment. It is milled, or can be synthesised, to produce particles on the micro-scale, or smaller on the nano-scale. Nano-titanium dioxide also exists in nature.

Titanium dioxide is used in sunscreens to reflect and scatter UV light. Not only does it protect the skin from UV light extremely well, the nano-form also has the added benefits in the formulation of being easier to spread and also appearing transparent - so reducing whiteness. These are important benefits as the feel and look of a product on the skin can be a major factor in someone’s decision to protect themselves from the sun using sunscreen." The Cosmetic, Toiletry and Perfumery Association (CTPA)

During the last 30 years, inorganic UV filters have been thoroughly tested and used safely as ingredients in sun protection products. Solaveil itself, has undergone rigorous testing, and is one of the most natural sunscreen actives available.

If you would like to find out more about nanomaterials including:

• What does 'nano' mean?
• What is a nanomaterial?
• Which nanomaterials are used in cosmetics?
• Are nanomaterials safe?
• Can nanoparticles penetrate through the skin?
• How will I know if a cosmetic product contains a nanomaterial ingredient?

Click the link below to visit CTPA "The Facts About" website.