efficient – by design

Like the wings on maple seeds that boost seed dispersal, natural evolution produces organisms uniquely suited for their environment or function. Inspired by this efficiency, schülke has created sensiva® PA 40, an antimicrobial stabilizer blend uniquely suited for your leave-on, wet wipe and sensitive formulas. It combines natural, nature-identical and gentle synthetic materials to produce a multifunctional additive empirically designed to meet the changing preservation needs of the personal care industry.

As more traditional preservatives are coming under attack, formulators are looking towards multifunctional additives with antimicrobial stabilizing properties to fill the void. sensiva® PA 40 builds on schülke's experience and the success of our half natural, half nature-identical sensiva® PA 30.

Naturally occurring substances tend to be more organism-specific and can have color and odor issues. By using nature-identical and gentle synthetic materials, activity level, color and odor of sensiva® PA 40 can be controlled precisely and standardized. The consistency and availability of the material can also be managed to create a more sustainable formulation.

sensiva® PA 40 includes Zemea® Propanediol, from Dupont Tate & Lyle BioProducts. This innovative, skin-friendly, 100% natural glycol alternative is used as a humectant or natural solvent in cosmetics and personal care products. Studies have shown that Zemea® can boost the efficacy of preservatives, potentially reducing the amount of preservatives needed in the formulation. In this unique blend, propanediol improves the antimicrobial activity of the other ingredients, allowing sensiva® PA 40 to be used at lower levels than most non-traditional preservation systems.

Challenge tests performed on a variety of cosmetic formulations show sensiva® PA 40 to be an effective antimicrobial stabilizer at a use level of 0.5-1.5%. Additionally, it supports deodorant activity, as it has been shown to inhibit the growth and multiplication of odor-causing bacteria.

Schülke & Mayr GmbH has over 124 years of history protecting people and materials against infection and contamination. Its euxyl® brand provides numerous preservative blends for the cosmetic industry. These optimized combinations of active substances offer broad-spectrum efficacy, keeping cosmetic products free of microbial growth.

The sensiva® and sensidin® brands include versatile, multifunctional skin care additives for personal care products. With their unique properties, they are suitable for use in a wide range of cosmetic applications, including creams, lotions and deodorants.

With sensiva® PA 40, schülke has taken inspiration from Mother Nature. By combining natural, nature-identical and gentle synthetic components, sensiva® PA 40 has improved the efficiency and efficacy of non-traditional preservation systems.

Let us make your product exceptional – by design.
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schülke — our expertise from preservation to multifunctional additives

Since 1889, Schülke & Mayr GmbH has been one of the world‘s leading names in preservation and industrial hygiene. Our products and services help you to protect people and materials against infection and contamination.

Our euxyl® brand provides numerous preservative blends for the cosmetic industry. These optimized combinations of active substances offer broad spectrum efficacy, keeping cosmetic products free of microbial growth.

Our sensiva® brand includes versatile, multifunctional skin care additives for personal care products. Their unique properties make them suitable for use in a wide range of cosmetic applications — including creams, lotions and deodorants.

Our grotamar® brand biocide preservatives for diesel fuels quickly kill and control microbial contamination.


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efficient — by design

euxyl® from schülke is a family of multicomponent preservative systems that makes formulating simpler. With a wide variety of chemistries to choose from, there is a euxyl® product to meet almost any preservation need.

euxyl® gives you:

  • Proven broad spectrum efficacy
  • Easy-handling liquid blends
  • Preservatives for leave-on products
  • Preservatives for rinse-off products
  • Preservatives for wet-wipe products


  • smooth — safe — sensiva®

    sensiva® products from schülke are unique, versatile preparations that boost preservative effectiveness and feel silky-smooth to the touch. They open up new possibilities for cosmetic formulations, to help you create better products.

    sensiva® products are:

  • versatile skin care additives
  • applicable in a wide variety of cosmetic products
  • emollient and mild humectant
  • boosters for traditional preservative actives
  • antimicrobial stabilizer blends

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