Salon style starts with strong hair. Get 100 percent stronger hair. Ready for salon styles. Hair can lose its strength and nourishment if damaged. TRESemmé Ionic Strength contains salon grade ionic complex, which when used with Ionic Strength conditioner helps restores and nourish your hair, reinforcing its natural protection to damage. Gentle enough for daily use, your hair is strong and healthy like you have just stepped out of a salon.