Light and non-greasy, this octinoxate- and oxybenzone-free anti-sand sunscreen gel applies to wet skin without a whitening effect. AvoBrite® provides efficient excited state quenching of Avobenzone, protecting it from photo-degradation and improving sunscreen performance. HallBrite® BHB provides sunscreen solvency and emolliency. Adding Olivem® 2020 in the final phase stabilizes and gives more structure and viscosity to the emulsion and improves its sensoriality. In vitro testing suggests SPF ~55, PFA (PPD) ~17 performance with critical wavelength = 377 nm.
| 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 | ||
Acrylates Copolymer | AvoBrite®* | 5.00 | Photostabilizer | |
Butyloctyl Salicylate | HallBrite® BHB* | 5.00 | Sunscreen Solvent | |
| B | Butyl Methoxydibenzoylmethane [Avobenzone] | 3.00 | UV Filter / Sunscreen Agent | |
| C | Acrylates/Dimethicone Copolymer | 2.00 | Film Former | |
| Dimethicone (5 cSt) | 2.00 | Feel Modification / Enhancement | ||
| Silica (spherical, 12 µm) | 2.00 | Deoiling Agent | ||
| 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 | ||
| E | Ethylhexyl Olivate, Sodium Acrylates Copolymer, Polyglyceryl-4 Olivate | Olivem® 2020 | 2.00 | Multifunctional Cold Process Emulsifier |
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 liquids from phase D, start mixing and add Disodium EDTA with mixing until dissolved. Add phase E and mix until a gel formed. |
| 4 | When both phases are homogeneous, slowly add phase ABC to phase DE with proper mixing until the emulsion is fully formed. |
PRODUCT CHARACTERISTICS (25°C)
| Appearance | Off-white gel |
| Viscosity (20 rpm, Brk, RV DV-II, T-D, after 24h at room temperature; mPa∙s) | 22000 - 23500 |
| pH (as is) | 6.0 - 7.0 |
*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