This transparent sunscreen stick formulation is designed to provide label SPF 60 performance without Ethylhexyl Methoxycinnamate, Benzophenone-3, Octocrylene, Homosalate, and Butyl Methoxydibenzoylmethane. A combination of Spectrasolv® DMDA, HallTress® DIBA Special, SolaFresh™, HallStar® TEC, and HallBrite® BHB provides the best solvency for three solid UV filters. Also, HallStar® Octyl Isononanoate contributes a right polarity to form a transparent stick. BIOME Oléoactif® balances the skin’s microbiota and maintains the integrity of the epidermal barrier. In vitro testing suggests SPF ~62, PFA (PPD) ~20, and critical wavelength = 372 nm.
| Phase | INCI Name [INN/USAN] (Other Information) | Trade Name | % Wt | Function |
|---|---|---|---|---|
| A | Diethylamino Hydroxybenzoyl Hexyl Benzoate | 8.00 | UV Filter / Sunscreen Agent | |
| Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine | 4.00 | UV Filter / Sunscreen Agent | ||
| Ethylhexyl Triazone | 3.00 | UV Filter / Sunscreen Agent | ||
Dimethyl Capramide | Spectrasolv® DMDA* | 1.50 | Sunscreen Solvent | |
Diisobutyl Adipate | HallTress® DIBA Special | 7.00 | Emollient / Sunscreen Solvent | |
Diethylhexyl 2,6-Naphthalate | SolaFresh™ | 10.00 | Multifunctional Sunscreen Solvent | |
Triethyl Citrate | HallStar® TEC | 5.00 | Emollient | |
C12-15 Alkyl Benzoate | HallStar® C1215 Alkyl Benzoate Natural | 5.00 | Sunscreen Solvent/Emollient | |
Butyloctyl Salicylate | HallBrite® BHB* | 5.00 | Sunscreen Solvent/Emollient | |
Ethylhexyl Methoxycrylene | SolaStay® S1* | 3.00 | Photostabilizer | |
Simmondsia Chinensis (Jojoba) Seed Oil (and) Avena Sativa (Oat) Kernel Oil (and) Bacillus Ferment | BIOME Oléoactif® | 1.00 | Active Ingredient | |
Tocopherol | Biochemica® Vitamin E Natural | 0.25 | Antioxidant Agent | |
Ethylhexyl Isononanoate | HallStar® Octyl Isononanoate | up to 100 | Emollient | |
| B | Polyamide-8 | 25.00 |
PREPARATIVE PROCEDURE
| 1 | Add Phase A to the main vessel, start center-stir (prop) mixing and heat to 90 - 100°C. |
| 2 | Add Phase B to Phase A and mix until uniform and clear to make sure phase B is totally dissolved. |
| 3 | Start cooling with mixing until 75°C. Stop mix and filling into containers. |
PRODUCT CHARACTERISTICS (25°C)
| Appearance | Clear stick |
*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