Walker’s Max Hold Sport is our strongest scalp protector. It protects the scalp from potential irritation from adhesive contact and keeps the adhesive in place by protecting it from sweat, oil, water, and other factors. It’s an ideal choice for wearers who live active lifestyles or live in extremely hot or humid areas. Keep the product away from heat, humidity, and light. Store in a well-ventilated, cool, dark, dry, room-temperature controlled environment (60-80°F). Close bottle lids tightly. With proper storage, These liquid products have a shelf life of up to six months.