One.Leave

Meet One.Leave — the multitasking leave-in your routine has been missing. One weightless mist does the work of a shelf full of products: it protects against UV and heat, floods dry lengths with moisture, tames frizz and leaves a soft, glossy finish. Built for summer, holidays and everything the weather throws at your hair — and two years in the making, because we wouldn't launch it until it was perfect.

Powered by an 18-amino-acid + collagen complex:
• Amino Acid Complex – 18 amino acids that strengthen the hair fibre and support repair
• Hydrolyzed Collagen – film-forms to improve resilience and resistance
• Panthenol (Pro-Vitamin B5) – deep hydration, elasticity and shine
• Coconut Water (Cocos Nucifera) – lightweight hydration and minerals
• NMF-like humectants (Sodium PCA + Sodium Lactate) – lock in long-lasting moisture
• UV Filter (Ethylhexyl Methoxycinnamate) – shields hair and colour from the sun
• Next-gen silicones (Dimethicone, Phenyl Trimethicone) – heat protection, smoothness and shine
• Conditioning agents (Quaternium-80, Behentrimonium Chloride) – anti-frizz, detangling and slip

Aqua, Behentrimonium Chloride, Dimethicone, Propylene Glycol, Cetearyl Alcohol, Isopropyl Alcohol, Phenyl Trimethicone, Myristyl Alcohol, Cetyl Alcohol, Phenoxyethanol, Ethylhexylglycerin, Panthenol, Parfum, Cocos Nucifera Extract, Quaternium-80, Ethylhexyl Methoxycinnamate, Sodium PCA, Sodium Lactate, Arginine, Aspartic Acid, PCA, Glycine, Alanine, Serine, Valine, Isoleucine, Threonine, Proline, Histidine, Phenylalanine, Disodium EDTA, Hydrolyzed Collagen, Lactic Acid.

• Deadline for guaranteed Valentine’s Day delivery is Thursday 1pm (next-day delivery service)
• Our standard estimate during this period is 1–2 working days.
• Please note that our dispatch cut-off time is 1pm, Monday to Thursday.
    - Orders placed after 1pm will be processed on the next working day.
  On Fridays, the cut-off time is 12pm.
  - Orders placed after 12pm will be processed on Monday, or the next working day if Monday falls on a bank holiday.