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Eusolex^® T-products: Your connection for top protection

The efficiency of a cosmetic sun-screen product is determined essentially by the type and quantity of the UV absorber it contains. More and more, interest is focusing on mineral UV filters, such as the Eusolex^® T-range of products. Unlike organic UV absorbers, these mineral UV filters are not absorbed by the skin and are therefore notable for their extremely good skin tolerance and excellent stability.

As a well established and innovative producer of ultra-fine titanium dioxides, Sachtleben has for a number of years now been cooperating exclusively with Merck KGaA in Darmstadt. In close cooperation with this well-known cosmetics firm, we develope for our customers the Eusolex^® T-product line (a registered trade name of Merck KGaA).

Eusolex^® T-2000

This high-end product with an excellent balance between sun-screening factor and input product quantity can, thanks to its unique amphiphilic surface, be readily dispersed both in aqueous and in oil-containing phases. The ultra-fine rutile-base titanium dioxide provides excellent broadband protection, with high efficiency in the UV-A range, combined with excellent transparency.

Eusolex^® T-AVO

An innovative, ultra-fine titanium dioxide based on the rutile modification. Special coating with silicon dioxide significantly improves compatibility with avobenzone (BMDBM), and thus permits formulation of high-quality UV-B and UV-A sun blocker and cosmetic products.

Eusolex^® T-S

The stearic-acid coating of the ultra-fine titanium dioxide particles permits a large and diverse range of applications in cosmetic products, with a particularly homogeneous particle distribution.

Eusolex^® T-ECO

This Simethicone-coated and physically modified all-round ultra-fine titanium dioxide is notable for its good toleration and low dust production.

Eusolex^® T

Our standard anatase modification nano-titanium dioxide. Thanks to its lipophilic surface, this powder type is outstandingly suitable for incorporation into the oil phase of a sunscreen emulsion.

Alongside the Eusolex^® T-powder grades listed above, we also supply the dispersions shown below as ready-to-use systems for production of highly efficient sun and skincare products:

Eusolex^® T-AQUA

This aqueous dispersion of ultra-fine titanium dioxide (rutile modification) permits achievement of excellent transparency in sun and skincare products. Its thixotropic dispersion gives it excellent storage stability.

Eusolex^® T-Oleo

Eusolex^® T-OLEO is a 37 % liquid dispersion of silica coated titanium dioxide in lightweight moisturizing cosmetic ester oils. It shows an improved compatibility with Avobenzone/BMDBM due to a special silica coating.

The exclusive production process used in Sachtleben's dedicated production plant for ultrafine particles permits tight particle-size distributions for the Eusolex^® T-product range. The primary crystals of these micro-rutiles are able to accumulate in the form of rods and then reach extents of up to 100 nm. Scatter of visible light by the secondary particles is so slight that formulations containing nano-fine titanium dioxides appear transparent to the observer.

This signifies for the formulation designer in the cosmetics industry an enormous advantage. The Eusolex^® T-range of products makes it possible to achieve simultaneously not only high SPF protection performance (Diagram 1) but also excellent sun and skincare product transparencies.


If you would like to know more about the Eusolex^® T-product range, please contact: