Light and non-greasy, this Octocrylene-, Octinoxate-, and Oxybenzone-free sunscreen gel applies to wet skin without a whitening effect. SolaStay® S1 provides very rapid and efficient excited-state quenching of Butyl Methoxydibenzoylmethane, protecting it from photo-degradation and enhacing the performance of the combination of Butyl Methoxydibenzoylmethane and Ethylhexyl Triazone. HallBrite® BHB provides sunscreen solvency and emollience. Three-person in vivo testing yielded static SPF of 35.8 in an EU lab. In vitro analysis delivered PFA (PPD) ~17 performance with critical wavelength = 381 nm.
| Phase | INCI Name [INN/USAN] (Other Information) | Trade Name | % Wt | Function |
|---|---|---|---|---|
| A | Diisobutyl Adipate | HallTress® DIBA Special | 5.00 | Emollient / Sunscreen Solvent |
Dimethyl Capramide | Spectrasolv® DMDA* | 1.00 | Sunscreen Solvent | |
| Ethylhexyl Salicylate [Octisalate] | 5.00 | UV Filter / Sunscreen Agent | ||
Ethylhexyl Methoxycrylene | SolaStay® S1* | 3.00 | Photostabilizer | |
Butyloctyl Salicylate | HallBrite® BHB* | 5.00 | Emollient / Sunscreen Solvent | |
Diethylhexyl 2,6-Naphthalate | SolaFresh™ | 7.00 | Multifunctional Emollient | |
| B | VP/Eicosene Copolymer | 2.00 | Film Former | |
| Ethylhexyl Triazone | 3.00 | UV Filter / Sunscreen Agent | ||
| Butyl Methoxydibenzoylmethane [Avobenzone] | 4.40 | UV Filter / Sunscreen Agent | ||
| C | Glycerin | 6.00 | Humectant | |
| Xanthan Gum (pharma grade) | 0.15 | Thickener (Aqueous) / Emulsion Stabilizer | ||
| D | Water (Aqua) | up to 100 | Volatile Carrier | |
| Preservative | a.n. | Preservative | ||
| Trisodium Ethylenediamine Disuccinate (37% active) | 0.20 | Chelating Agent | ||
Ethylhexyl Olivate, Sodium Acrylates Copolymer, Polyglyceryl-4 Olivate | Olivem® 2020 | 2.00 | Multifunctional Cold Process Emulsifier | |
| E | Silica (spherical, 12 µm) | 3.00 | Deoiling Agent |
PREPARATIVE PROCEDURE
| 1 | To a secondary vessel add phase A and start mixing and heat to 50 - 60°C. |
| 2 | Add phase B into phase A with mixing until phase B is dissolved totally, then start cooling with mixing. |
| 3 | To the main vessel add premixture of phase C, and then add phase D with strong mixing until a smooth gel formed. |
| 4 | When both phases are homogeneous, slowly add phase AB to phase CD 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 gel |
| Viscosity (20 rpm, Brk, RV DV-II, T-D, after 24h at room temperature; mPa∙s) | 40000 - 65000 |
| 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