Leonor Greyl Paris Serum de Soie Sublimateur Nourishing & Protective Serum in Beauty: NA. Leonor Greyl Paris Serum de Soie Sublimateur Nourishing & Protective Serum in Beauty: NA. An iconic essential in the Leonor Greyl Paris line, Serum de Soie Sublimateur is a natural, silicone-free styling product that instantly enhances hair without weighing it down. Infused with silk proteins that attach to keratin, combined with various plant-based essential oils, this luxurious serum adds shine, heat and UV protection, and instant slip without making it heavy.. Silk proteins and vegetal oils work together to help detangle, smooth, condition and nourish without weighing hair down. Cruelty-free and color-safe. Free of parabens, silicones, coal tar, and SLS. 2.5 fl oz. Start with small amount (two pumps) and use more if needed. Apply to damp or dry hair to help detangle, protect and nourish. LEGL-WU10. 2014. A unique philosophy behind a visionary hair care line, Leonor Greyl Paris offers a vast range of hair care products that bring out hair's full beauty. What makes the brand special is its unique approach - a blend of daring formulations and creativity with a fundamental commitment to only offer natural products of which the active ingredients are exclusively taken from the world's incredible pharmacopoeia of plants, flowers and fruits. Their objective is to produce products with effectiveness and effortlessness, adapting to all hair types and hairstyles.