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Do More with Less Using Multifunctional Additives
By: schülke inc.
Posted: November 13, 2012
With crude oil prices near record highs and uncertainty in the political and economic future, everyone is looking for ways to do more with less. The use of multifunctional raw materials allows formulators to use less resources, an immediate cost saving. This can also economize warehouse space, saving time, energy and order processing, all while adding multiple benefits to finished cosmetic products.
Better Skin Feel
In 1991, schülke introduced ethylhexylglycerin into the personal care industry as sensiva® SC 50 (INCI: Ethylhexylglycerin). The moisturizing benefits of this glyceryl ether have long been known. In 2010, schülke preformed a series of evaluations to prove the sensory benefits of including ethylhexylglycerin in cosmetic formulations. Marion Leschke published the results of this testing in 2010 in “Ethylhexylglycerin for an Improved Skin Feel.”1 Significant improvements in tackiness, penetration, soaping, greasiness and overall impression were found when 1% ethylhexylglycerin was added to a high glycerin, o/w cream, as shown in Figure 1.
Effective moisturization has also been found with sensiva® SC 10 (INCI: Ethylhexylglycerin (and) Caprylyl Glycol). A standard emulsion containing sensiva® SC 10 was tested against a combination of 1,2-hexanediol and caprylyl glycol at the same use level. Corneometer results show the combination of 1,2-hexanediol and caprylyl glycol increased skin hydration by 2% over the placebo cream. Skin hydration was improved with sensiva® SC 10 by more than 10% over the placebo cream, as shown in Figure 2.
Improved Fragrance Performance
Ethylhexylglycerin (sensiva® SC 50) has been used as a substitute for triclosan in a variety of deodorant products. Fragrance-boosting and fixing properties of this material have been proven in a recent series of tests. For many fragrances/fragrance components, the addition of ethylhexylglycerin was found to boost the fragrance and allow it to stay on the skin longer. This allows the formulator to use less fragrance (usually the most expensive part of a formulation) for the same effect.
Non-traditional preservation methods are becoming more popular. Ethylhexylglycerin has been used to improve the efficacy of many traditional and non-traditional preservation methods. Pairing ethylhexylglycerin with phenoxyethanol (euxyl® PE 9010 (INCI: Phenoxyethanol (and) Ethylhexylglycerin)) or methylisothiazolinone (euxyl® K 220 (INCI: Methylisothiazolinone (and) Ethylhexylglycerin)) produces a broad-spectrum, liquid preservative that is globally approved and improves the sensory characteristics of the finished product. The combination of ethylhexylglycerin and caprylyl glycol (sensiva® SC 10) not only improves skin hydration but can also improve the microbiological stability of a formula so that no traditional preservative is needed.
Saving More in More Ways
Multifunctional additives save time, energy and money — most of all they allow the formulator to use less resources. By incorporating ethylhexylglycerin and blends into a formula, a formulator can improve preservation, increase skin hydration, create a more pleasant skin feel and reduce fragrance costs, all at the same time.
Do more with less by using multifunctional additives from schülke in personal care formulas.
To learn more about schülke's ability to save cosmetic manufacturers time and money by using multifunctional additives, visit schulke-us.com/CTSC12 or call at 1-888-267-4220.
1. M Leschke, Ethylhexylglycerin for an Improved Skin Feel, SOFW Journal 8 (2010)
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