What surprised me most is how far the brand traveled beyond hair. Atkin took a minority stake from Alliance Consumer Growth in 2018 and sold to a large consumer goods company in 2021, and since then the shelf has kept widening. Body care is where the idea lands most naturally, because the products share scent names with the hair line.

The St. Barts range is the one named for the island. St. Barts Gentle Body Wash is the daily cleanser, and the St. Barts Moisturizing Body Cream is a soft, all-over lotion for after the shower. The Cleansing Scalp and Body Sugar Scrub, in its St. Barts version and its plain one, does double duty: I use it on my scalp once a week to lift buildup, and on elbows and knees the rest of the time. Melrose Place Moisturizing Body Cream carries the scent of the Melrose Place perfume and dry shampoo.

The odd one out is the Anti-Frizz Curl Styling Cream with North Bondi fragrance. It sits with the body products because the scent belongs to the same family, and it is the one to reach for when waves need definition and you want a little softness with it.

Keep scents in the same family across your shower and your skin cream, and everything feels intentional. I also like that the body products are not shy about scent, so they are best on days when you are not wearing a separate perfume and want one consistent note from shower to evening.

The perfumes are the part most people meet last, and they might be the most convincing. Dean Street, Rue St. Honoré and Melrose Place are named after streets, and I think of them as small trips.

Dean Street Eau De Parfum is a citrus, apricot and magnolia scent, and I would try it first if you like something bright. Rue St. Honoré Eau De Parfum is built around violet, gardenia and white musk, a floral that suits an evening out. Melrose Place Eau De Parfum matches the body cream and dry shampoo of the same name, so you can wear it in layers, and that is a neat trick if you like a scent that sits in your hair too.

Hair holds scent well, which is why perfume makes sense for a stylist's brand. Spray a little on the ends of your hair brush, not the hair itself, then brush through. It gives a soft trail.

What I would skip: buying a full bottle from the name alone. Smell all three on your skin, wait an hour, and see which one still feels like you. Also skip spraying fragrance straight onto freshly colored hair or dry, brittle ends, since perfume can leave them feeling rough. A light mist on a scarf or the collar of a jacket carries just as far.

If I were building a small OUAI shelf from nothing, I would pick one shampoo, one mask, one oil, one body product and one perfume, all from the same scent name so they play well together. Use the clarifying shampoo sparingly, mask once a week, and give any new product a couple of weeks before you judge it.

The brand works best when you treat it as a family instead of a single hero. Try the scent you like, then follow it through the other products, and you will see why the range hangs together. Store bottles and tubes away from a steamy shower shelf so the scents stay true, and wash your brush every few weeks so it does not pass old product back into clean hair. If a scalp scrub ever stings or your scalp stays itchy, stop using it and check in with a doctor or your stylist.