Buy 10 Get 1 Free! Use Code: Buy10Get1 at Checkout.L'Oréal Professionnel hair colours & tints become brilliant. The Dia Activateur is specially coordinated to the intense tints Dia Richesse and Dia Light by L'Oréal Professionnel. It is available in a salon size of 1000 ml and in three different strengths. With a percentage of 1.8%, 2.7% or 4.5% the Activateur can be mixed with every one of the colours named and delivers a really brilliant result together with this. The hair colours & tints that you mix with Dia Activateur, cover up to 70% of greys and nevertheless the colour washes out again little by little. If you use the L'Oréal Professionnel hair colour & tints often, Dia Activateur in a salon size is naturally also the right size for at home. And so that you always know how much of the activator you need to mix in for the respective colour, every colour has detailed instructions.