Mara Roszak

Mara Roszak has been cutting, coloring, and styling hair for over two decades. She started assisting at salons in Los Angeles as a teenager and was licensed by nineteen. Today, her editorial and red-carpet work includes Emma Stone, Brie Larson, Zoe Saldaña, Ana de Armas, and Lily James.

Her point of view

Mara’s work is recognizable because it is never overworked. The hair has polish, movement, and health first; the styling supports the person instead of announcing the product. That is the standard she brings to RŌZ: start with the condition of the hair, understand what the strand can tolerate, then use only what earns its place.

Why she started RŌZ Hair

For years, Mara mixed her own backbar formulas for salon clients — removing harsh cleansing systems, heavy residue, and drying ingredients that made color-treated hair harder to maintain between services. Clients kept asking where they could buy what she was using. In 2022, after a two-year formulation process with chemists in California, she launched RŌZ Hair with Foundation Shampoo and Foundation Conditioner: the first two products from her backbar, scaled for everyday use at home.

When Mara writes here

Mara’s byline is intentionally selective. She writes when the answer depends on her direct working experience with hairstyling and technique. Her expertise is not medical advice, clinical testing, or an independent evaluation of RŌZ products.

Most articles on The RŌZ Guide carry the RŌZ Team byline. Mara contributes styling perspective to selected Guide content; her own byline is reserved for pages where her direct working experience is material to the guidance.

What she looks for

When Mara contributes, her questions are practical: whether the advice respects fine, curly, and color-treated hair; whether the technique is useful; and whether the page overpromises. Styling expertise does not validate chemistry, safety, medical-adjacent, or finished-product performance claims.

What she uses

On set, Mara’s kit is deliberate rather than oversized: a gentle sulfate-free shampoo, a rich conditioner used mid-lengths to ends, a heat protectant, a curl-defining cream, and a finishing oil. Everything else — texture sprays, structural hairspray, boar-bristle brushes — is earned by context, not carried by habit. The through line is restraint: care first, finish second, and no product without a reason.

Press + recognition

Mara’s work has been published in Vogue, Harper’s Bazaar, W Magazine, British Vogue, and Glamour. She’s been named to multiple “best hairstylist” industry lists and is a Dyson Hair brand ambassador.