Hedrin Once Spray Gel 15 Minute 100ml is slippery; baths, shower cubicles etc, may become slippery when using or washing hair. Be careful and wash any residues away with detergent and warm water. If allergic to any of the ingredients in Hedrin Spray Gel do not use. Avoid contact with eyes and do not swallow. Do not use on broken skin. Do not use on children under six months.