STYLE MASTERS iron guard 150 ml STYLE MASTERS iron guard 150 ml is a thermal protection spray that is designed to protect your hair from the heat of styling tools. It is enriched with protective agents that help to shield your hair from heat up to 230°C. The spray also helps to reduce frizz and adds shine to your hair, while providing medium hold. It is perfect for all hair types and can be used on both wet and dry hair.