This water-in-oil zinc oxide sunscreen lotion provides SPF 30 sun protection without using organic UV filters. HallBrite® BHB (Butyloctyl Salicylate) in HallBrite® EZ-FLO ZDX contributes a very good dispersion for zinc oxide. In vitro analysis suggests SPF ~ 34, PFA (PPD) ~10, performance with critical wavelength 375 nm.
| Phase | INCI Name [INN/USAN] (Other Information) | Trade Name | % Wt | Function |
|---|---|---|---|---|
| A | Isopropyl Myristate | HallStar® IPM-NF | 15.00 | Carrier |
Zinc Oxide [Zinc Oxide] (60%), Butyloctyl Salicylate, Triceteareth-4 Phosphate, Triethoxycaprylylsilane | HallBrite® EZ FLO ZDX | 25.00 | UV Filter/Sunscreen Agent / Carrier System | |
| B | Cetyl PEG/PPG-10/1 Dimethicone | 3.00 | Emulsifier | |
| Cylcopentasiloxane, Cyclohexasiloxane | 5.00 | Emollient | ||
| Cyclopentasiloxane, Disteardimonium Hectorite, Propylene Carbonate | 3.00 | Rheological Control / Enhanced Skin Feel | ||
| C | Sorbitan Olivate | Olivem® 900 | 1.00 | Co-emulsifier |
| Silica (spherical, 12 µm) | 2.00 | Deoiling Agent | ||
| Beeswax (Cera Alba) | 1.00 | Thickener (Nonaqueous) | ||
| D | Water (Aqua) | up to 100 | Volatile Carrier | |
| Glycerin | 8.00 | Humectant | ||
| Disodium EDTA | 0.05 | Chelating Agent | ||
| Sodium Chloride | 1.00 | Stabilizing Agent |
PREPARATIVE PROCEDURE
| 1 | To the main vessel, add phase A and start mixing. Add phase B with mixing. Start heating to 75°C. |
| 2 | Add phase C to phase AB and mix well until uniform. |
| 3 | To a secondary vessel add phase D, start mixing and heat to 70°C. |
| 4 | When both phases are homogenous at their designated temperature, start homogenizing phase ABC. |
| 5 | Very slowly add phase D to phase ABC. |
| 6 | Start to cool to room temperature. When below 50°C, add phase E to phase ABCD. |
PRODUCT CHARACTERISTICS (25°C)
| Appearance | White smooth lotion |
| Viscosity (Brk, RVDV-II, T-D, 20 rpm, after 24 h at room temperature; mPa∙s) | 7000 - 10000 |
*Patented and Patent Pending
The information presented herein is believed to be accurate and reliable, but no warranty or guarantee, expressed or implied, is made regarding the information or the performance of any product. Further, nothing contained herein shall be taken as any inducement or recommendation to use, manufacture or sell that may infringe any patents or any other proprietary rights now or hereafter in existence, nor to imply compliance with any regulatory requirements
The Hallstar Company - 120 South Riverside Plaza Suite 1620 - Chicago, IL 60606-3911 USA hallstarbeauty.com