Using a non chemical method to calm your waves and curls will keep your hair healthy. L’Anza Healing Smooth Smoother Straightening Balm blocks humidity and stops frizz whilst helping to maintain a healthy internal moisture level. This lightweight Smoother Straightening Balm, which reduces drying time and is part of L’Anza’s Healing Smooth range, boasts moisturising shea butter and shine enhancing mangosteen. It adds a wonderful glossy sheen to your hair as it helps to straighten out curls and waves. pH 4.5.