Gielly Green Launches ‘The One System’ – a streamlined haircare ritual, Gielly Green, one of London’s most celebrated luxury salons, introduces its product range: The One System, a high-performance, streamlined haircare ritual born from decades of salon expertise.  

After 17 years perfecting the craft, founders Shai and Karin Greenberg set out to solve one of beauty’s biggest frustrations: the overwhelming complexity of haircare. The result is a core trio of essentials: One Shampoo, One Conditioner, One Mask – paired with four targeted leave-in Boosters for all hair types.  

Every product in The One Hair System is powered by three main ingredients: Moringa, Saffron, and Rice Water. Drawn from ancient traditions across Africa, Persia, and Asia, this trio works together to protect, transform, and heal, delivering results for scalp health, hair strength, and holistic well-being.

Every product shares one couture signature scent, a zesty citrus and spicy florals, softened by creamy vanilla and deepened with warm woods and sensual musks, designed to linger beautifully and unite the collection. 

The Core Trio consists of One Shampoo, which deeply cleanses without stripping, balancing scalp microbiome whilst adding shine and smoothness. Whilst One Conditioner restores moisture, detangling effortlessly, and enhances strength, softness and manageability, and One Mask is a rich, restorative treatment that deeply nourishes, repairs, and revives hair from root to tip.

Gielly Green identified the four most common concerns – scalp health, bond-repair, heat protector and shine – and developed targeted, leave-on boosters system:

The One for SCALPS – Calms irritation, reduces hair loss, and encourages healthy growth with a soothing, revitalising touch.  

The One for STRENGTH – Repairs bonds, restores elasticity, and strengthens hair fibre for lasting resilience.  

The One for SMOOTHNESS – Locks in moisture, shields from heat & frizz, and leaves hair sleek yet full of life.  

The One for SHINE – Lightweight nourishment that seals split ends and delivers long-lasting brilliance.

“After decades of working with every hair type imaginable, we wanted to strip away the noise and give people something effortless, a system that simply works, for everyone.”  Shai Greenberg 

Gielly Green’s The One System is available to buy The One System | Gielly Green online and at Gielly Green, 42-44 George Street, W1U 7ES

Images provided by PR agency – LM Communications