Many companies are now seeking to use inorganic UV filters as they offer many benefits in formulation. They can offer:
Consider what are the key performance and sensory characteristics you want in the final product, and what other ingredients you intend to use. Key questions to consider include:
If so, select one of the Solaveil™ Clarus range to minimize whitening on skin. If transparency is not important, for example in a baby sun product, a Tioveil™ or Tioveil 50 dispersion may give better cost-effectiveness.
Oil-based dispersions tend to give better water-resistance. However Solaveil CT-12W, which is a water-based dispersion but uses hydrophobic Titanium dioxide, also gives good water-resistance.
Water-based dispersions tend to give a drier skin feel than oil-based. If using an oil dispersion, select a carrier which helps to deliver the skin feel characteristics you want in the final formulation.
Are there any organic UV filters in the formulation? A dispersion based on C12-15 Alkyl Benzoate can be helpful in this case, as this ester is an excellent solvent for organic filters. However certain organic filters can give a yellow colour in combination with titanium dioxide; this can be reduced or even eliminated by using a water-based titanium dioxide dispersion.
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