This sunscreen cream formulation delivers true broad-spectrum sun protectin, making use of singlet state quenching SolaStay®S1, triplet state quenching organosilicone HallBrite®PSF, and elegant sunscreen solvent and emollient HallBrite®BHB tp photostabilize a combination of the sunscreen active ingedients Homosalate and Avobenzone. Sunspheres magnify sunscreen active ingredients performance. In vitro testing indicates SPF ~ 40, PFA (PPD) ~ 30. Critical wavelength = 380nm.
| Phase | INCI Name [INN/USAN] (Other Information) | Trade Name | % Wt | Function |
|---|---|---|---|---|
| A | Homosalate [Homosalate] | 7.00 | UV Filter / Sunscreen Agent | |
| C12-15 Alkyl Benzoate | 4.00 | Solvent | ||
| Ethylhexyl Methoxycrylene | SolaStay® S1* | 3.00 | Photostabilizer | |
| Butyloctyl Salicylate | HALLBRITE® BHB* | 5.00 | Sunscreen Solvent | |
| Undecylcrylene Dimethicone | HALLBRITE® PSF* | 2.00 | Photostabilizer | |
| B | Butyl Methoxydibenzoylmethane [Avobenzone] | 3.00 | UV Filter / Sunscreen Agent | |
| C | Glyceryl Stearate | HALLSTAR® GMS PURE | 1.43 | Emulsifier |
| PEG-100 Stearate | HALLSTAR® PEG 4400 MS | 1.27 | Co-emulsifier | |
| Cetearyl Alcohol | HALLSTAR® TA-1618 CETEARYL ALCOHOL | 0.50 | Thickener (Nonaqueous) | |
| VP/Eicosene Copolymer | 1.00 | Film Former | ||
| Potassium Cetyl Phosphate, Hydrogenated Palm Glycerides | 1.50 | Emulsifier | ||
| D | Styrene/Acrylates Copolymer (hollow spherical, 325 nm) | 3.00 | SPF Booster | |
| E | Water (Aqua) (deionized) | up to 100 | Volatile Carrier | |
| Disodium EDTA | 0.05 | Chelating Agent | ||
| Xanthan Gum (pharma grade) | 0.20 | Thickener (Aqueous) | ||
| F | Preservative | a.n. | Preservative | |
| Glycerin | 3.00 | Humectant | ||
| G | Acrylamide/Sodium Acryloyldimethyltaurate Copolymer, Isohexadecane, Polysorbate 80 | 1.50 | Thickener (Aqueous) | |
| Silica (spherical, 12 µm) | 2.00 | Deoiling Agent |
| 1 | To a secondary vessel, add phase A and start mixing. Add phase B, het to 85°C, and then add phase C individually. |
| 2 | When AB homogenous, add phase D and mix this oil phase until D is well dissolved |
| 3 | Add water of phase E to the main vessel, dissolve EDTA with continue mixing and then add Xanthan gum, stirring until fully incorporated. |
| 4 | Start heating phase E to 80°C and add premix phase F to the water phase with mixing. |
| 5 | When both phases are homogenous, and at their designated temperature, slowly add the oil phase ABCD to the water phase EF with mixing. |
| 6 | Start homogenizing and cooling. When the batch reaches 55°C, start sweet mixing and continue cooling. Add simulgel and continue mixing until fully incorporated. |
| 7 | Add Silica and continue mixing until incorporated. When completely smooth, perform final quality assurance checks. |
| Appearance | Light yellow Cream |
| Viscosity (Brk, RVDV-II, T-D, 20 rpm, after 24 h at room temperature; mPa·s) | 13000 - 22000 |
| pH | 5.5 - 6.5 |
*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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Tel.: 877 427 4255 (International n.: +1 312 385 4494) - Fax: +1 330 929 3616 - E-mail: customerservice@hallstar.com Web Site: hallstar.com
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