Osmo Extreme Glue Resin gives a solid long-lasting hold. Osmo is the UK's leading professional hair care brand and the Extreme Glue Resin is designed to give you the hairstyle you want. This hair gel offers a strong hold for everyday styling, ensuring your hairstyle lasts all day. To use, rub a small amount of the product in your hands and use your fingers to style your hair. You can adjust your style throughout the day as much as you like.