ProTec Ingredia
  Newsletter Issue: 71  September 2015   
ProTec Email Newsletter
Floratech Floraesters K20W Jojoba
Improves sunscreen water-resistance


Incorporating Floraesters K-20W Jojoba into a Sunscreen formulation resulted in improved SPF following 40-minute water immersion.

"Early this year we saw SPF values coming under scrutiny again, albeit unjustly. It did however once again highlight the challenge of achieving and maintaining claimed SPF. Floratech's data shows the impact of Floraesters K20W Jojoba in ensuring SPF is maintained at claimed level  even after 40 minutes immersion in water. Incredible data."
Kevin Cousins, Sales Director
 
Floviva  Lakesis  Oat Lipid e 
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Introduction to the study
The Minimum Erythemal Dose (MED) is the lowest UV dose required to produce perceptible erythema. The MED for each subject was measured and used to determine the proper UV exposure during testing of the sunscreen formulations.

The static SPF value was calculated using the MED of sunscreen protected skin (MDp) relative to the MED of unprotected skin (MEDu) on each subject using the following equaton: MEDp / MEDu. For the 40-minute immersion test, subjects sat with the testing site submerged in a water bath for 2 x 20-minute periods prior to UV exposure, and SPF was calculated in the same manner as above.


Results
The graph below shows the SPF values for sunscreen formulations with and without Floraesters K-20W Jojoba, for both the static and 40-minute water immersion SPF testing:
 

Erythema
Floraesters

After 40 minutes of water immersion, the sunscreen formulation with 5% Floraesters K-20W Jojoba had a 28% higher SPF and maintained an SPF rating of 15 (which was not seen for the placebo formula).

>> Download the datasheet


Please contact us if you would like to receive further information about Floraesters K20W Jojoba and for quotations or samples.

  
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For further information about any of the products mentioned in this newsletter, please email us or contact your usual ProTec representative.

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