CRIOXIDIL Straightening Gel is a combination of active hydrating agents, heat protectors and styling agents which help create styles and allow them to last longer. Straightening gel that makes brushing easier and protects hair from the heat of dryers and styling tools. Contains waterproof filmogens for maximum styling resistance, protecting the hair from atmospheric humidity. Helps make light work of straightening with a flat iron or hairdryer and CRIOXIDIL Straightening Gel provides hair with improved heat protection.