The caffeine based active ingredient combination in alpecin after shampoo liquid keeps hair production going it helps prolong the hairs growth phases in people with hereditary hair loss alcepin helps keep hair roots active for a lifetime and maintains vigorous hair growthfor optimal results use the alpecin active shampoo suitable for your hair type before using this liquid as it contains a patented scalp protecting ingredient directions of use apply to your toweldried scalp in the morning an