For soft water, try extra protein products such as Evo Mane Attraction (£18) and Labelm Protein Spray (£16). "If the water is soft, leaving your hair too flat/soft/flyaway, added protein will bolster your hair and give it back its bounce, and I'm all about that," says Watts. "Protein to our hair is like the vitamin D and iron to our tired, busy lifestyles."