For 130 years, schülke has been in the forefront of the war against microbiological contamination. sensiva PA 40 combines naturally derived, nature-identical, mild synthetics materials that can be used to control microbial contamination in your most difficult to preserve systems; including high-SPF sunscreens. schülke products continue to offer peerless protection for your cosmetic formulations. 
 

schülke offers a wide range of preservatives and preservative boosters that are right for almost every formulation.