The science of dull hair lacking radianceover time hair fibres can become dull due to a build up of impurities and the hair cuticle becoming rough which can disrupt light reflectionthe secret to intense and long lasting shine today a professional gloss technique is used to remove impurities from hair fibres and coat them with a glossing polish for long lasting weightless luminosityinspired by this loral paris laboratories have created our first haircare range enriched with glycog