You can use the product search tool to obtain a list of all the Croda inorganic sunscreen dispersions and key information about them.
The emollients used as carriers for the oil-based dispersions are those emollients commonly used in sun care products and daily skin care products:-
- C12-15 Alkyl Benzoate (Tioveil™ FIN, Tioveil ABC, Tioveil 50 FIN, Tioveil 50 FCM, Spectraveil™ FIN, Solaveil™ CT-100, Solaveil CZ-100) – the most commonly-used ester in sun care products, because it is is a very efficient solvent for organic sun filters.
- Cyclomethicone pentamer (INCI : Cyclopentasiloxane) (Tioveil ABC, Tioveil CM, Tioveil 50 FCM, Tioveil 50 GCM, Solaveil CT-434) – also very widely used in sun care and skin care due to it’s high spreadability and light skin feel.
- Caprylic/capric triglyceride (Tioveil MOTG, Tioveil TG, Tioveil 50 MOTG, Tioveil 50 TG, Spectraveil MOTG, Spectraveil TG, Solaveil CT-300, Solaveil CZ-300) – another good solvent for organic sunscreens and also regarded as a “green” emollient, as it is naturally-derived.
- Isohexadecane (Solaveil CT-200) – a branched hydrocarbon which has extremely good spreadability and a light, non-greasy afterfeel.
- Triethylhexanoin (Solaveil CT-200) – a branched, low molecular weight ester which is a very good solvent for organic sun filter, leaves a low residue on skin and has a non-greasy skin feel.
- Mineral oil (INCI: Paraffinum liquidum) (Tioveil MOTG, Tioveil 50 MOTG, Spectraveil MOTG)
- Ethylhexyl palmitate (Tioveil OP, Tioveil 50 OP)
- Isopropyl myristate (Tioveil IPM, Tioveil 50 IPM, Spectraveil IPM)
- Octyldodecanol (Tioveil 50 GCM)
- Propylene Glycol Isostearate (Solaveil CT-434)
For products in the Tioveil, Tioveil 50, and Spectraveil ranges, the letters represent the carrier media; for example OP for Octyl Palmitate, TG for caprylic/capric TriGlyceride and so on. The suffix AQ indicates aqueous, ie. these are the water-based dispersions.
In the Solaveil Clarus range, the format is Solaveil CT-xxx for titanium dioxide dispersions, and Solaveil CZ-xxx for zinc oxide dispersions. Oil-based dispersions have a three-digit number to distinguish between different carrier media, while water-based dispersions have a two-digit number followed by “w” (denoting water).
Titanium dioxide is sometimes described as a “natural sunscreen” because it is derived from a naturally-occurring mineral. However the titanium dioxide has to go through several chemical processes to make it suitable for use as a sunscreen, including the application of organic and/or inorganic coatings. In terms of carriers, most of the carrier oils used in Croda sunscreen dispersions are synthetic; however caprylic/capric triglyceride (used in Solaveil CT-300, Solaveil CZ-300, Tioveil TG, Tioveil 50 TG, and Spectraveil TG) is naturally-derived.
The Solaveil Clarus range of transparent inorganic sunscreen dispersions was extended in 2006 with the launch of the first transparent zinc oxide dispersions, Solaveil CZ-100 and Solaveil CZ-300.
The dispersions are all white or off-white fluids. First-generation Tioveil dispersions, Spectraveil dispersions, and Solaveil CZ dispersions are white and have low viscosity, being easily pourable. The Tioveil 50 dispersions are more viscous, due to their higher solids content. Solaveil CT dispersions are off-white in colour and have a high viscosity but can still be easily pumped and mix readily with other formulation ingredients.
The key requirement is that the dispersions are not allowed to freeze. We recommend storage at temperatures of at least 5˚C to ensure this. We also recommend that the dispersion is stirred before use, to ensure that it is completely homogeneous.
All Croda inorganic sunscreen products have a shelf life of at least 2 years; for some products the shelf life is 3 years. Products nearing the end of their shelf-life however can be retested on request.