Wella SP Repair Infusion Infusions 1 Ounce 30 Milliliters A moisturizing customizable treatment that works with any SP mask to shield hair from drying out unveils sleeker, shiner and healthier hair. Blend 1 single-dose of infusion with 25 millilitre of SP mask evenly. Spread on toweled dried-hair. Leave on for 5-10 minutes. Add heat to enhance the effect. Rinse well.