This light and non-greasy sunscreen cream, free from Octinoxate, Oxybenzone, ethanol and volatile silicones, apply to wet skin without whitening. Multifunctional cold-process Olivem® 2020 is the only emulsifier used. HallBrite® BHB provides sunscreen solvency and emolliency. In vitro testing suggested SPF ~32, PFA (PPD) ~12 performance with critical wavelength = 378 nm. In vivo testing (5 subjects) yielded static SPF 39 in a US laboratory, with 80-minute water resistant SPF 38.
|Sequence||Trade Name||INCI Name||%|
|A||Ethylhexyl Salicylate [Octisalate]||5.0|
|OLIVEM® 2020||Ethylhexyl Olivate, Sodium Acrylates Copolymer, Polyglyceryl-4 Olivate||2.0|
|B||Butyl Methoxydibenzoylmethane [Avobenzone]||3.0|
|C||Water||up to 100|
1 To a secondary vessel add phase A and start mixing. Add phase B and heat to 55°C. Stop heating after all solids have dissolved. 2 To the main vessel add phase C, start mixing and then add phase D items. 3 When both phases are homogeneous slowly add phase AB to phase CD with prop mixing. 4 When the emulsion is fully formed (white and thickened; 20 minutes or longer, as necessary), continue mixing until batch is smooth.