Light and non-greasy, this Octinoxate- and Oxybenzone-free anti-sand sunscreen gel applies to wet skin without a whitening effect. SolaStay® S1 provides very rapid and efficient excited state quenching of Avobenzone, protecting it from photo-degradation and improving sunscreen performance. HallBrite® BHB provides sunscreen solvency and emolliency. In vivo testing in a US laboratory (5 subjects) yielded static SPF 64, with 80 minute water resistant SPF 62. In vitro PFA (PPD) ~23 performance with critical wavelength = 379 nm and over four hours of water resistance by an in vitro method in house.
| Phase | INCI Name [INN/USAN] (Other Information) | Trade Name | % Wt | Function |
|---|---|---|---|---|
| A | Ethylhexyl Salicylate [Octisalate] | 5.00 | UV Filter / Sunscreen Agent | |
| Octocrylene [Octocrilene] | 10.00 | UV Filter / Sunscreen Agent | ||
| Homosalate [Homosalate] | 10.00 | UV Filter / Sunscreen Agent | ||
Ethylhexyl Methoxycrylene | SolaStay® S1* | 3.00 | Photostabilizer | |
Butyloctyl Salicylate | HallBrite® BHB* | 5.00 | Sunscreen Solvent | |
| B | Butyl Methoxydibenzoylmethane [Avobenzone] | 3.00 | UV Filter / Sunscreen Agent | |
| C | Acrylates/Dimethicone Copolymer | 1.00 | Film Former | |
| Styrene/Acrylates Copolymer (hollow spherical, 325 nm) | 1.00 | SPF Booster | ||
| D | Water (Aqua) | up to 100 | Volatile Carrier | |
| Glycerin | 8.00 | Humectant | ||
| Preservative | a.n. | Preservative | ||
| Disodium EDTA | 0.05 | Chelating Agent | ||
Ethylhexyl Olivate, Sodium Acrylates Copolymer, Polyglyceryl-4 Olivate | Olivem® 2020 | 2.00 | Multifunctional Cold Process Emulsifier | |
| E | Silica (spherical, 12 µm) | 5.00 | Deoiling Agent | |
| Cyclopentasiloxane, Cyclohexasiloxane | 5.00 | Feel Modification / Enhancement |
PREPARATIVE PROCEDURE
| 1 | To a secondary vessel add phase A and start mixing and add phase B. Heat to 45 - 50°C. Start cooling after phase B is dissolved totally. |
| 2 | Add phase C into phase AB and mix until uniform. |
| 3 | To the main vessel add phase D, start mixing until a smooth gel formed. |
| 4 | When both phases are homogeneous, slowly add phase ABC to phase D with proper mixing until the emulsion is fully formed. |
| 5 | Add phase E with mixing until batch is uniform, replacing any water lost to evaporation and mixing until smooth. |
PRODUCT CHARACTERISTICS (25°C)
| Appearance | Off-white soft gel |
| Viscosity (Brk, RV DV-II, T-D, 20rpm, after 24h at room temperature; mPa·s) | 20000 - 30000 |
| pH (as is) | 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
The Hallstar Company - 120 South Riverside Plaza Suite 1620 - Chicago, IL 60606-3911 USA hallstarbeauty.com