A broad spectrum SPF 50 sunscreen cream. Extremely rapid exicited state quencher SolaStay® S1 is incorporated to photostabilize Octinoxate and Avobenzone and mitigate the photocatalytic and reactive oxygen species generating activities of the oxide. One person in vivo testing yielded static SPF 55 in a Korean lab. In vitro SPF 55, PFA 18, performance with critical wavelength 377 nm.
| Phase | INCI Name [INN/USAN] (Other Information) | Trade Name | % Wt | Function |
|---|---|---|---|---|
| A | Isopropyl Myristate | HALLSTAR® IPM-NF | 3.00 | Sunscreen Solvent |
| Ethylhexyl Methoxycinnamate [Octinoxate] | 3.00 | UV Filter / Sunscreen Agent | ||
| Homosalate [Homosalate] | 10.00 | UV Filter / Sunscreen Agent | ||
| Ethylhexyl Salicylate [Octisalate] | 5.00 | UV Filter / Sunscreen Agent | ||
| Ethylhexyl Methoxycrylene | SolaStay® S1* | 3.00 | Photostabilizer | |
| B | Butyloctyl Salicylate, Titanium Dioxide (nano) [Titanium Dioxide] (40%), Triceteareth-4 Phosphate, Dimethicone Crosspolymer, Silica | HALLBRITE® EZ-FLO TDX | 10.00 | UV Filter/Sunscreen Agent / Carrier System |
| C | VP/Eicosene Copolymer | 1.00 | Film Former | |
| Glyceryl Stearate | HALLSTAR® GMS PURE | 3.00 | Emulsifier | |
| PEG-100 Stearate | HALLSTAR® PEG 4400 MS | 2.90 | Emulsifier | |
| Butyl Methoxydibenzoylmethane [Avobenzone] | 3.00 | UV Filter / Sunscreen Agent | ||
| D | Water (Aqua) (deionized) | up to 100 | Volatile Carrier | |
| Glycerin | 3.00 | Humectant | ||
| Disodium EDTA | 0.05 | Chelating Agent | ||
| Xanthan Gum (pharma grade) | 0.20 | Thickener (Aqueous) | ||
| E | Preservative | a.n. | Preservative | |
| Acrylamide/Sodium Acryloyldimethyltaurate Copolymer, Isohexadecane, Polysorbate 80 | 2.00 | Viscosity Increasing Agent (Aqueous) | ||
| Cyclopentasiloxane | 3.00 | Feel Modification / Enhancement | ||
| Aluminum Starch Octenylsuccinate | 2.00 | Deoiling Agent |
| 1 | To a secondary vessel add phase A and start mixing, add phase B and heat to 80°C. |
| 2 | Add phase C into phase AB, mixing well until all are dissolved. |
| 3 | To the main vessel add the Water and Glycerin of phase D, start mixing and add remaining phase items in order. |
| 4 | When solids of phase D are fully incorporated, heat phase D to 75°C. |
| 5 | When both phases are homogeneous and at their designated temperatures, slowly add phase ABC to phase D with mixing. |
| 6 | Start homogenizing batch and after 3 minutes, resume center stir mixing and start cooling batch. |
| 7 | When batch is below 45°C add phase E ingredients one by one with mixing. |
| 8 | Continue mixing until batch is at room temperature, replacing any water lost to evaporation and mixing until smooth. |
| Appearance | Pale yellow cream |
| Viscosity (Brk, RVDV-II, T-D, 20 rpm, after 24 h at room temperature; mPa∙s) | 12000 - 25000 |
| 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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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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