FORMULATING FOR MILDNESS 69 60% A 50% 40% B 30% 20% 10% 0% immediate 30 minutes Figure 2: Improved skin hydration – face wash.


Measurements were repeated at the respective evaluation time points. The results for skin hydration appear in Figure 2. Consumer evaluations were also made during the wash, 0 (i.e. immediately after washing), and 30 minutes after washing with the face wash. The data in Figures 1 and 2 show that the


inclusion of 0.50% K-20W in a soap or 0.75% K-20W in a face wash resulted in increased skin hydration as compared to the respective vehicle (p<0.001). In both wash products, the K-20W was able to mitigate the drying effect caused by surfactants and soap after a single use as well as multiple uses. The data in Figure 3 show that the inclusion


of 0.50% K-20W in a soap produced a 56% decrease in skin barrier dysfunction as compared to the vehicle (p<0.001). The data demonstrates the protective effect provided by the K-20W, which subsequently reduced damage to the skin barrier after repeated washes. The study also showed that the inclusion of


0.50% K-20W in a soap or 0.75% K-20W in a face wash increased skin smoothness more than 1.5 times as much as the respective vehicle (p<0.05). The K-20W was able to increase skin smoothness after a single face wash use, also after multiple bar soap uses7


. Vehicle bar soap 60 minutes


n A-vehicle face wash + 0.75% K-20W n B-vehicle face wash


n A-vehicle bar soap + 0.5% K-20W n B-vehicle bar soap B


80% 70% 60% 50% 40% 30% 20% 10% 0%


A


30 minutes Figure 3: Reduced skin barrier dysfunction. It was also shown that more than 94% of


consumers also preferred the bar soap with 0.50% K-20W for skin hydration (i.e. less dry skin) and skin smoothness both immediately and 30 minutes after use (p<0.05), which supports the results seen using bioinstrumentation. Additionally, the bar soap with 0.50% K-20W was also preferred for skin softness, as well as foam properties such as creaminess, foam generation, and quantity (p<0.05)7 More than 80% of consumers also


.


preferred the face wash with 0.75% K-20W for skin hydration (i.e. less dry skin) and skin smoothness after use (p<0.05), which again supports the results seen using bioinstrumentation. The face wash with 0.75% K-20W was preferred for foam properties such as creaminess and quantity (p<0.10) as well7


.


K-20W improves foam retention The bar soaps were diluted to 1% in water and blended for one minute. The foam solution was then transferred to a graduated cylinder and foam volume (ml) was measured initially and after 20 minutes. The inclusion of 0.50% K-20W resulted in 22% more foam after 20 minutes. The bar soaps were also rubbed by hand for approximately 60 seconds and foam was collected. The results


Vehicle bar soap + 1% K-20W


appear in Figure 4. The soap with 1.0% K- 20W produced a creamier, denser foam compared to the vehicle soap without K-20W. Additional studies also indicated 0.50% K-


20W in a bar soap produced smoother, more stable foam, and foam with a more compact structure, finer bubbles, and greater structural strength. K-20W also had the ability to reduce cracking of the bar soap over time.3 The face washes were diluted to 5% in


water and blended for one minute. The foam solution was then transferred to a graduated cylinder and foam volume (ml) was measured every five minutes for 20 minutes. The inclusion of 0.75% K-20W Jojoba produced up to 27% more foam than the vehicle face wash. The results appear in Figure 5.


High oleic sunflower oil improves oxidative stability The oxidative stability index (OSI) of high oleic sunflower oil (Florasun 90) versus traditional sunflower oil was determined, with and without fragrance, at room temperature (0 weeks), after 12 weeks at 43°C, and after two weeks at 50°C. The results appear in Figure 6. OSI is indicative of how long a product will


stay stable on the shelf. Not all triglyceride oils are as stable as high oleic sunflower oil, and subsequently go rancid more quickly. This is especially true in the presence of fragrance. The data in Figure 6 show that the high oleic sunflower oil produced a higher oxidative stability both with and without fragrance8


than the traditional sunflower oil. This is indicative of a longer shelf life.


Conclusion Studies have shown that Floraesters K-20W Jojoba can increase skin hydration and smoothness, improve barrier function, reduce erythema, and improve consumer perception in a variety of finished products applications.1,2


This current research Figure 4: Creamier foam. October 2020 demonstrates that many of these benefits PERSONAL CARE NORTH AMERICA


Percent change in skin hydration from baseline


Percent increase in skin barrier disruption from baseline


increasing barrier disruption


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