This kit is suitable for a family large or small. It can be used on small babies over 4 months old as Homeopathy is very gentle in its action. It contains the same two medicines as the adult kit which everyone can use. It also contains two specific medicines for infants and children to assist with difficulties with falling asleep due to over stimulation whilst in flight; and for those hyper states that young children can sometimes find themselves in when travelling in confined spaces such as planes. These two medicines can be a real life saver if this has ever happened to you during a long flight!