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Skin Lightening Gel



Published September 1, 2006
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Phase A
Water
77.30
Natrosol 250 HHR (Hercules F) (Hydroxyethylcellulose)
1.50
Abil B 88183 (Degussa/Goldschmidt) (PEG/PPG-20/6 dimethicone)
2.00

Phase B
Glycerin
3.00
Preservative
q.s.

Phase C
NaOH 10% (Sodium hydroxide)
q.s. to pH 8.5
Citric acid
q.s. to pH 4-5

Phase D
EDG Plus (Moellhausen S.p.A.) (Ethoxydiglycol)
5.0

Phase E
Water
10.00
Alpha-Arbutin (Pentapharm)
1.00
Uvinul DS 49 (BASF) (Benzophenone-9)
0.20

Procedure
Disperse Natrosol 250 HHR in water, then add Abil B 88183. Mix phase B, then add it to phase A. Adjust the pH to approx. 8.5 with NaOH 10% to obtain a clear gel. Then adjust the pH to approx. 4.0-5.0 with citric acid. Add phase D under stirring. Add phase E and mix to obtain a homogeneous gel.

More Information
Centerchem, Inc., 20 Glover Ave., Norwalk, CT 06850
Tel:  (203) 822-9800; Fax: (203) 822-9820
E-mail: cosmetics@centerchem.com; Website: www.centerchem.com


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