Sunjin is mass producing inorganic UV filters such as Zinc oxide and Titanium dioxide as well as organic UV filters encapsulating materials.
SPF & PA in-vivo Test
Sunjin is providing free in-vivo clinical test service to those of customers using our materials in their formulations. The number of clinical trials conducted by the company exceeded 800 as of 2019. Please contact Sunjin Sales team if you are interested in requesting samples for in-vivo clinical test.
Sunjin is capable of controlling size, shape, and surface of Zinc oxide particles. List of different characteristics of Zinc oxide that are available at Sunjin is summarized below.
Sunjin is providing Zinc oxide particles with various size and surface. List of different characteristics of Titanium dioxide that are available at Sunjin is summarized below.
Sunjin is also providing dispersion of both Zinc oxide and Titanium dioxide in dispersion media that customer request. Some of common dispersions that are available at Sunjin are listed below.
UV FILTER CAPSULES
Most of the organic UV-filters are only soluble in oil phase but water dispersible organic UV-filters are highly desirable to maximize the use of both oil and water phase in formulation. Therefore, water soluble UV-filters are extensively being researched worldwide. Sunjin also has developed innovative UV Capsules that readily disperse in both water and oil phase.
Organic UV-filters generally do not have pleasant feeling when applied as they have high adhesiveness. In addition, they may be irritating for some people so demand for organic UV-filters is declining these days. Therefore, Sunjin has encapsulated these organic UV-filters into the microbeads not only to disperse them in water phase but also minimize their direct contact onto the skin.
In general, Titanium dioxide without proper surface coating is very rough on the surface. Sunjin incorporated these Titanium dioxide particles into the microbeads thereby it provided new silky outer surface to the incorporated Titanium dioxide. In addition, size of incorporated Titanium dioxide is relatively small in size compares to general Titanium dioxide particles used for the sunscreen so the whitening index of Titanium dioxide encapsulated microbeads are relatively lower than the whitening index of the general Titanium dioxide particles.