This oil-in-water broad spectrum sunscreen cream contains mineral UV filters only. The SolaStay® S1 in HallBrite® EZ-FLO ZDX Plus mitigates the photocatalytic and reactive oxygen species generating activities of the oxides. In vivo testing of one person yielded static SPF 45.0 and PFA 12.0 in a US lab. The formulation was subjected to in vitro analysis and delivered SPF ~45, PFA (PPD) ~15 performance with critical wavelength 379 nm.
| Phase | INCI Name [INN/USAN] (Other Information) | Trade Name | % Wt | Function |
|---|---|---|---|---|
| A | Ethylhexyl Isononanoate | HallStar® Octyl Isononanoate | 10.00 | Sunscreen Solvent |
| Butyrospermum Parkii (Shea) Butter | Biochemica® Shea Butter Natural | 1.00 | Emollient | |
| Butyloctyl Salicylate, Titanium Dioxide (nano) [Titanium Dioxide] (40%), Triceteareth-4 Phosphate, Dimethicone Crosspolymer, Silica | HALLBRITE® EZ-FLO TDX | 6.00 | UV Filter/Sunscreen Agent / Carrier System | |
| Zinc Oxide [Zinc Oxide] (58%), Butyloctyl Salicylate, Ethylhexyl Methoxycrylene, Triceteareth-4 Phosphate, Triethoxycaprylylsilane | HallBrite® EZ-FLO ZDX Plus | 17.30 | UV Filter/Sunscreen Agent / Photostabilizer / Carrier System | |
| B | VP/Eicosene Copolymer | 1.50 | Film Former | |
| Glyceryl Stearate | HallStar® GMS Pure | 3.00 | Emulsifier | |
| PEG-100 Stearate | HallStar® PEG 4400 MS MB | 2.80 | Co-emulsifier | |
| C | Water (Aqua) | up to 100 | Volatile Carrier | |
| Glycerin | 3.00 | Humectant | ||
| Disodium EDTA | 0.05 | Chelating Agent | ||
| Xanthan Gum (pharma grade) | 0.25 | Thickener (Aqueous) | ||
| D | Preservative | a.n. | Preservative | |
| Cylcopentasiloxane, Cyclohexasiloxane | 3.00 | Emollient | ||
| Aluminum Starch Octenylsuccinate | 2.00 | Deoiling Agent |
PREPARATIVE PROCEDURE
| 1 | To a secondary vessel add phase A and start mixing, heat to 80°C and add phase B. |
| 2 | To the main vessel add the Water and Glycerin of phase C, start mixing and add remaining phase items in order. |
| 3 | When solids of phase C are fully incorporated, heat phase to 75°C. |
| 4 | When both phases are homogeneous and at their designated temperatures, slowly add phase AB to phase C with prop mixing. |
| 5 | After 5 minutes start cooling batch and when batch is < 50°C add phase D one by one with mixing |
| 6 | Continue mixing until batch is at room temperature, replacing any water lost to evaporation and mixing until smooth. |
PRODUCT CHARACTERISTICS (25°C)
| Appearance | Off white lotion |
| Viscosity (Brk, DVII, T-D, 20 rpm, after 24 h at room temperature; mPa·s) | 8000 - 12000 |
| pH (as is) | 6.5 - 7.5 |
*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