The Davines OI Range: Your Guide to Roucou Oil Hair Care

Few collections earn cult status, but the Davines OI range has — and the secret is one remarkable ingredient. If you have been searching for the Davines OI range in NZ, here is the full hairdresser's guide: what makes it special, what each product does, and how to put together your own OI routine for soft, shiny, frizz-free hair.

What is the Davines OI range?

OI is Davines' beautifying collection, built for all hair types and loved for the way it makes hair feel — soft, glossy and effortlessly manageable. It runs from cleansing through to styling and finishing, plus a couple of body treats, and every product carries the same warm, signature OI fragrance. Davines is a B Corp certified brand, so the range also comes with serious sustainability credentials and recyclable packaging.

The hero ingredient: Roucou Oil

The star of the OI range is roucou oil, pressed from the seeds of the Amazonian achiote (also called the "lipstick tree"). It is extraordinarily rich in beta-carotene — around 100 times more than carrots — along with antioxidants and ellagic acid. That means it helps protect the hair against environmental and UV stress while delivering softness, shine and a healthy-looking finish. It is the thread that ties every OI product together.

The OI haircare line-up

Here is how the haircare products work together, in the order you would use them.

• Davines OI Shampoo — a sulphate-free everyday wash that gently cleanses while adding softness, shine and body. Suits all hair types, including curly and coloured hair.
• Davines OI Conditioner — rich and buttery, it detangles and softens while adding shine, with antioxidant protection from roucou oil and a UV filter.
• Davines OI All In One Milk — the cult leave-in spray. It softens, detangles, controls frizz and protects against heat up to 230°C, all in one lightweight step. A long-standing top seller.
• Davines OI Oil — a weightless beautifying oil that adds instant shine and slip, tames frizz and doubles as a heat protectant. A little goes a long way.
• Davines OI Hair Butter — a rich smoothing treatment for dry, thick or coarse hair. Use it as a pre-shampoo mask or a leave-in for extra nourishment.
• Davines OI Liquid Luster — a water-light salon shine treatment that delivers a glass-like finish in seconds, with roucou and cardoon oils.

Beyond hair: OI Body Wash and Hand Balm

The OI fragrance does not have to stop at your hair. The OI Body Wash is a creamy, gently foaming shower gel that cleanses while leaving skin soft and hydrated, and the OI Hand Balm is a nourishing, antioxidant hand cream that softens and protects against the elements. Together they let you layer the signature scent head to toe.

How to build your OI routine

Start with OI Shampoo and OI Conditioner. For fine to medium hair, follow with a few sprays of OI All In One Milk for softness and heat protection. For thick, dry or coarse hair, add OI Hair Butter as a weekly treatment and finish styling with a touch of OI Oil. When you want maximum shine, work OI Liquid Luster into your wash routine.

Is the OI range right for my hair type?

Yes — OI is designed for all hair types. Fine hair stays soft and full of body thanks to the lightweight formulas; coloured hair benefits from the gentle, antioxidant-rich cleansing; and dry, coarse or frizz-prone hair loves the extra nourishment from the Hair Butter and Oil. The whole range is a favourite for anyone chasing softness, manageability and shine.

Frequently asked questions

What is roucou oil?
Roucou oil is a Brazilian botanical oil from the Amazonian achiote plant, rich in beta-carotene and antioxidants. It nourishes the hair, helps protect against environmental damage and gives the OI range its signature shine.

Is the Davines OI range sulphate-free?
The OI Shampoo uses gentle, sulphate-free surfactants that are safe for coloured and chemically treated hair. Always check individual product packaging for the most up-to-date ingredient information.

Which OI product is best for frizz?
For everyday frizz control and heat protection, reach for OI All In One Milk. For extra shine and smoothing on dry or coarse hair, use OI Oil or OI Hair Butter.

What is the difference between OI Oil and OI All In One Milk?
OI Oil is a concentrated styling oil best for shine, frizz and heat protection, especially on thicker hair. OI All In One Milk is a lighter leave-in spray for everyday softness, detangling and heat protection.

Where can I buy the Davines OI range in NZ?
Shop the full Davines OI range online at Sable Boutique, an official Davines NZ stockist, with fast NZ delivery, Afterpay and Zip.

Ready to try it? Explore the full Davines OI range at Sable Boutique, or browse all Davines hair products NZ. Not sure where to start? Email us at hello@sable.co.nz and we will help you build the right routine.