The Science of Dull Hair Lacking Radiance Over time, hair fibres can become dull due to a build-up of impurities and the hair cuticle becoming rough, which can disrupt light reflection. The Secret to Intense and Long lasting Shine Today, professional gloss techniques are used to remove impurities from hair fibres, and coat them with a glossing polish for long-lasting, weightless luminosity. Inspired by this, LOréal Paris laboratories have created our first haircare range enriched with Glycogel, a glossing polish that helps hair look illuminated for 48hr sealed in shine. Resurfaces the Fibres: Helps to clear the fibres of impurities that disrupt light reflection. The fibres appear as if resurfaced and cuticles appear realigned, for silky smooth hair that feels deeply moisturised. Seals in Shine: Helps seal the cuticles and coat the hair with a weightless gloss to intensify shine.