L’Oréal has teamed up with Swiss technology start-up Gjosa for a system that aims to let consumers use less water when rinsing shampoo. Gjosa has developed a showerhead that can rinse shampoo using 1.5 liters of water instead of the eight liters usually needed, says L’Oréal, while the French cosmetics company has created what it calls ‘easier-to-rinse shampoos’. Some parameters of the water jet were adjusted in real conditions to obtain the correct rinsing, without splashes, and reducing the consumption of water and energy in almost 70%. Gjosa’s low-flow showerhead uses two liters of water per minute.