Discourages nail biting and thumb sucking for children and adults. Nutritive oil to help speed nail growth. Nourishing cream for dry, damaged nails. Mavala MAVA FLEX Moisturizing base coat specially formulated for sensitive, delicate, and dry nails and hardener repairs soft, splitting nails - all ages. The only formula in the world since 1958. Can be applied to manicured nails. Nourishes nail roots and stimulates healthy nail growth. Do not mar or damage nail polish. Results in healthy, flexible, shiny, and soft nails, that do not break anymore. Completely penetrates nails to bond and harden the 3 layers of the nail structure. Only formula available in uk and u.s. Barrier-Base should always be followed by polish a topcoat. Ideally before going to bed to allow this serum to act during the night.