🇫🇷Kérastase

French luxury professional haircare brand founded in 1964 by scientists at L'Oréal in Paris. Kérastase pioneered the concept of salon-grade personalised haircare — developing the first professional bain (shampoo), scalp treatments, and care masks — and has spent six decades at the premium end of the professional market. The range spans over a dozen product lines targeting specific concerns including nourishment (Nutritive), repair (Résistance), anti-hairfall (Genesis), curl care (Curl Manifesto), and scalp sensitivity (Symbiose). Products are formulated with a mix of science-driven actives and luxury ingredients such as argan oil, Samoan coconut, and caviar extract; 63% of ingredients across the range are plant-based and 97% are biodegradable. Kérastase has committed to animal-testing-free methods since 1989, though independent cruelty-free bodies do not certify the brand due to L'Oréal's continued presence in mainland China. Not a curly-hair specialist, but the Curl Manifesto range — launched in 2021 with input from curl expert Vernon François — is one of the more credible curl lines from a mainstream professional brand, covering 2a–4c patterns. Widely available in UK salons, on kerastase.co.uk, and at selected Boots and Sephora locations.