This oil-in-water sunscreen lotion formulation is designed to provide globally broad spectrum, label SPF 50+, performance. In vitro analysis indicated SPF ~ 62, PFA (PPD) ~20 broad spectrum performance with critical wavelength 379 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 | ||
| Butyloctyl Salicylate | HALLBRITE® BHB* | 5.00 | Sunscreen Solvent | |
| B | Butyl Methoxydibenzoylmethane [Avobenzone] | 3.00 | UV Filter / Sunscreen Agent | |
| VP/Eicosene Copolymer | 1.00 | Film Former | ||
| Ceteareth-6 Olivate | OLIVEM® 800 | 3.00 | Co-emulsifier | |
| Cetearyl Olivate, Sorbitan Olivate | OLIVEM® 1000 | 2.50 | Self-Emulsifier / Liquid Crystal Maker | |
| C | Water (Aqua) | up to 100 | Volatile Carrier | |
| Glycerin | 3.00 | Humectant | ||
| D | Disodium EDTA | 0.05 | Chelating Agent | |
| Xanthan Gum (pharma grade) | 0.20 | Thickener (Aqueous) | ||
| E | Styrene/Acrylates Copolymer (hollow spherical, 325 nm) | 3.50 | SPF Booster | |
| F | Preservative | a.n. | Preservative | |
| Cyclopentasiloxane, Cyclohexasiloxane | 3.00 | Emollient | ||
| Aluminum Starch Octenylsuccinate | 2.50 | Deoiling Agent |
PREPARATIVE PROCEDURE
| 1 | To a secondary vessel add phase A and start mixing. Heat to 80°C and add phase B. |
| 2 | To the main vessel add phase C, start mixing and add phase D items in order. |
| 3 | When solids of phase CD are fully incorporated, heat phase to 75°C. |
| 4 | When both phases are homogeneous and at their designated temperatures, slowly add phase AB to phase CD with prop mixing. |
| 5 | Add phase E to phase ABCD with mixing. After 5 minutes start cooling batch and when batch is below 50°C add phase F items one by one with mixing. |
| 6 | Continue mixing until batch is at room temperature, replacing any water lost to evaporation and mixing until smooth. |
PRODUCT CHARACTERISTICS (25°C)
| Appearance | Off-white lotion |
| Viscosity (20 rpm, Brk, RVII, SP 4, after 24h at room temperature; mPa∙s): | 5000 - 8000 |
| 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