This oil-in-water sunscreen cream based on HallBrite® EZ-FLO ZDX Plus non-nano zinc oxide dispersion provides broad spectrum (SPF/PFA ≤ 3), label SPF 40 performance without using organic UV filters. This formula was subjected to in vitro analysis and delivered SPF ~44, PFA (PPD) ~17 (PA++++) performance with critical wavelength 379 nm.
| Phase | INCI Name [INN/USAN] (Other Information) | Trade Name | % Wt | Function |
|---|---|---|---|---|
| A | Ethylhexyl Isononanoate | HallStar® Octyl Isononanoate | 5.00 | Feel Modification / Enhancement |
Butyrospermum Parkii (Shea) Butter | Biochemica® Shea Butter Natural | 1.00 | Emollient | |
Zinc Oxide [Zinc Oxide] (58%), Butyloctyl Salicylate, Ethylhexyl Methoxycrylene, Triceteareth-4 Phosphate, Triethoxycaprylylsilane | HallBrite® EZ-FLO ZDX Plus | 35.00 | 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 | ||
| D | Disodium EDTA | 0.05 | Chelating Agent | |
| Xanthan Gum (pharma grade) | 0.25 | Thickener | ||
| E | 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 phase C, start mixing and add phase D items in order. |
| 3 | When solids of phase D are fully incorporated, heat phase CD to 75°C. |
| 4 | When both phases are homogeneous and at their designated temperatures, slowly add phase AB to phase CD with prop mixing. |
| 5 | After 5 minutes start cooling batch and when batch is below 50°C add phase E items 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 (25°C) | Smooth white cream |
| Viscosity (Brk, DVII, T-D, 20 rpm, after 24 h at room temperature; mPa∙s) | 26000 - 40000 |
| 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