This formula provides broad-spectum sun protection using high polarity sunscreen solvents and HallBrite® PSF, a novel triplet state quenching organomodified silicone polymer, to enhance the photostability of Avobenzone. HallBrite® PSF also improves feel and spreadability and provides detackification and anti-whitening benefits, and may enhance substantivity and water resistance. Oilve inspired emulsifiers contribute to unique product feel. In vitro testing suggest SPF ~ 16, PFA (PPD) ~6. Critical wavelength = 375nm.
| Phase | INCI Name [INN/USAN] (Other Information) | Trade Name | % Wt | Function |
|---|---|---|---|---|
| A | Water (Aqua) (deionized) | up to 100 | Volatile Carrier | |
| Disodium EDTA | 0.05 | Chelating Agent | ||
| Xanthan Gum (pharma grade) | 0.20 | Thickener (Aqueous) | ||
| B | Preservative | a.n. | Preservative | |
| Glycerin | 2.00 | Humectant | ||
| Butylene Glycol | 2.00 | Humectant | ||
| C | Dimethyl Capramide | SPECTRASOLV® DMDA* | 1.00 | Sunscreen Solvent |
| Homosalate [Homosalate] | 7.50 | UV Filter / Sunscreen Agent | ||
| Ethylhexyl Salicylate [Octisalate] | 5.00 | UV Filter / Sunscreen Agent | ||
| Octocrylene [Octocrilene] | 1.80 | UV Filter / Sunscreen Agent | ||
| Undecylcrylene Dimethicone | HALLBRITE® PSF* | 3.00 | Photostabilizer | |
| Diisobutyl Adipate | HALLTRESS® DIBA SPECIAL | 5.00 | Sunscreen Solvent / Emollient | |
| D | Butyl Methoxydibenzoylmethane [Avobenzone] | 2.00 | UV Filter / Sunscreen Agent | |
| E | Cetearyl Olivate, Sorbitan Olivate | OLIVEM® 1000 | 0.70 | Self-Emulsifier / Liquid Crystal Maker |
| Ceteareth-6 Olivate | OLIVEM® 800 | 3.20 | Emulsifier | |
| VP/Eicosene Copolymer | 1.00 | Film Former | ||
| F | Acrylamide/Sodium Acryloyldimethyltaurate Copolymer, Isohexadecane, Polysorbate 80 | 1.75 | Thickener (Aqueous) | |
| Silica (spherical, 12 µm) | 2.00 | Deoiling Agent |
| 1 | Add water of phase A to the main vessel. Dissolve EDTA with continue mixing and then add Xanthan gum, stirring until fully incorporated. |
| 2 | Start heating phase A to 80°C and add premixed phase B with mixing. |
| 3 | To a secondary vessel, add phase C, and start mixing. Add D with mixing, heat to 80°C, and then add phase E in order. |
| 4 | When both phases are homogenous, and at their designated temperature, add oil phase CDE to the water phase AB with prop mixing |
| 5 | Start homogenizing and cooling. When batch reaches 55°C, start sweet mixing. At 50°C or lower, add simugel with mixing. When batch is smooth, add Silica with mixing. |
| 6 | Replace any water lost to evaporation and mix until smooth and at desired filling temperature. |
| 7 | Stop cooling and mixing, perform final quality assurance checks and package product. |
| Appearance | White Cream |
| Viscosity (Brk, RVDV-II, T-D, 20 rpm, after 24 h at room temperature; mPa·s) | 16000 - 27000 |
| pH | 4.5 - 5.5 |
*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
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