Research and Markets: United Kingdom Haircare Market Assessment and Forecasts 2021-2025: Procter & Gamble, L'Oral S.A., and Unilever Leading the Way - ResearchAndMarkets.com ResearchAndMarkets.com's offering. The UK haircare sector is led by the shampoo category in both value and volume terms in 2020, while the salon hair care category is forecast to register the fastest value growth during 2020-2025. Hypermarkets supermarkets is the leading channel in distribution of haircare products in the country. Procter Gamble, L'Oréal S.A., and Unilever are the leading companies in the UK haircare sector. Rigid plastics is the most commonly used pack material in the sector.