NON-AQUEOUS SUNSCREEN WITH CRODASPERSE

Croda Inc
Low mechanical energy dispersant CRODASPERSE allows the formulation of this product with only a propeller mixer. The result is a lotion that may be spread onto the skin or used as an aerosol concentrate for even better, more even application. As a lotion, this formula showed an in vitro SPF of 52, an in vivo SPF of 36 pre-immersion and an SPF of 30 post-immersion. It also received a “superior” 3 star Boots rating.
Phase
Product
INCI Name
Supplier
Volume
A
CRODASPERSE
(Sorbitan Isostearate (and) Caprylic/Capric Triglyceride (and) Di-PPG-3 Myristyl Ether Adipate)
25.00
Titanium Dioxide 1
16.00
B
CRODAMOL CAP
(Cetearyl Ethylhexanoate)
10.00
CRODAMOL OS
(Ethyhexyl Stearate)
30.50
CRODAMOL PMP
(PPG-2 Myristyl Ether Propionate)
2.00
MEDILAN
(Modified Lanolin USP)
1.50
CRODAMOL SS
(Cetyl Esters)
4.00
SUPER HARTOLAN
(Lanolin Alcohol NF)
5.00
SYNCROWAX ERL-C
(C18-36 Acid Glycol Ester)
2.00
SYNCROWAX HR-C
(Tribehenin)
4.00

Preparation:

Procedure Combine all ingredients of Part A and mix at high speed until uniform. Add ingredients of Part B to Part A. Heat with stirring to 80-85°C and continue stirring at this temperature for 5 minutes. Cool with stirring to 30°C.

Notes:

Suppliers 1 UV-Titan M170, Kemira Pigments
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