09.01.06
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 |