Soliance to launch two new skin care ingredients at in-cosmetics Soliance to launch two new skin care ingredients at in-cosmetics 18-Apr-2012 By Katie Nichol Soliance to launch two new skin care ingredients at in-cosmetics France-based cosmetics ingredients supplier Soliance is showcasing two new skin care ingredients, Syner-GX and Hydreïs, at in-cosmetics in Barcelona, this week.