(38)For detergents and surfactants sold to end-users through refill, it should be possible for a more extensive amount of information to be provided digitally only, in order to fully reap not only the benefits offered by digitalisation, but also the large environmental benefits in terms of reduction of packaging and related packaging waste that the practice of refill sales offers. Nevertheless, end-users should receive in a physical form at least simplified dosage instructions for consumer laundry detergents and information on fragrance allergens and preservatives, in order to avoid the risk of allergic reactions.