Butter Lovin’ Shea and Lemon TiO2 SPF 30 Sunscreen Stick

This formulation was designed to provide SPF 30 performance. It is water-resistant, preservative-free, and can be customized with natural butters and oils. For this sunscreen stick, Biochemica® Shea Butter HMP was combined with Biochemica® Lime Butter to soften, moisturize and rejuvenate skin, and contribute a lovely, fresh fragrance.
One person in vivo testing yielded static SPF 40.2 in a U.S. lab. In vitro analysis and delivered SPF ~40, PFA (PPD) ~8 performance with critical wavelength 375 nm.

Sequence Trade Name INCI Name %
A BIOCHEMICA® SHEA BUTTER HMP Butyrospermum Parkii (Shea) Butter 35.00
  BIOCHEMICA® Lime BUTTER Prunus Amygdalus Dulcis (Sweet Almond) Oil, Hydrogenated Vegetable Oil, Citrus Aurantifolia (Lime) Peel Oil 4.00
  BIOCHEMICA® OLIVE OIL-ULTRA REFINED Olea Europaea (Olive) Fruit Oil 22.00
  HALLBRITE® EZ-FLO ZDX Butyloctyl Salicylate, Titanium Dioxide (nano) [Titanium Dioxide] (40%), Triceteareth-4 Phosphate, Dimethicone Crosspolymer, Silica 20.00
B Olivem® 900 Sorbitan Olivate 9.00
C   Beeswax (Cera Alba) 5.00
    Nylon-12 5.00

1 In the main vessel, combine and mix phase A and heat up to 85°C with mixing.
2 Add phase B in with mixing until uniform. add phase C with mixing.
3 Start cooling, stop mixing at 60°C.