Saint Algue is a hair-salon brand built around the coiffeur-visagiste idea — cut, color and styling personalised to each client's face shape and lifestyle. On top of that it carries a strongly eco-responsible identity: natural and certified-organic product lines, refillable formats, hair recycling and ocean-conservation messaging. It pairs an accessible mid-market price point with a natural-beauty and visagism story that few volume chains can carry credibly.