Skincare brand and spa management company ESPA has branched out into the world of haircare, adding a purifying shampoo and nourishing conditioner – which the company said are the two most client-requested haircare products – to its mix.

The shampoo and conditioner are free of silicone, SLS and SLES and created using plant and aromatherapy actives. The purifying shampoo is 99 per cent natural and the natural conditioner is 98.5 per cent natural, and the company said it took 115 formulations to get the line right.

The shampoo features natural plant cleansers, honey and jojoba and olive oils, while the conditioner includes protein-rich soy, wheat and corn extracts along with ProVitamin B5 and coconut, jojoba and olive oils.

The line is available at ESPA salons and spas worldwide – there are more than 450 ESPA spas in 50 countries – and each 295ml bottle will retail for £20 ($28, €26).

KSL Capital Partners has invested in ESPA as well as Miraval Group, and in October, Steven Rudnitsky was brought in as Miraval’s CEO – tasked in part with the growth of ESPA.