Eco-designed refills , 100% recyclable and made from recycled materials,
Pause, change your routine, or pause your subscription at any time : your subscription adapts to your hair needs.
Long-term routine, lasting results
It's through regularity that the hair ecosystem regains its natural balance. The Cair subscription supports you in this essential continuity, offering you a routine designed to prolong the benefits of your treatments and sustainably anchor the health of your hair microbiota.
In 1 month , your hair is shinier and lighter. It stays cleaner longer. The lengths are naturally coated and soft.
In 3 months , your fibers are detoxified, your scalp is cleansed and regains its balance. Regrowth is more intense and rapid.
Beyond that , your hair is permanently freed from accumulated traces of petrochemicals, and your scalp is soothed.
The essential step for stronger hair and a revitalized scalp
The Strengthening Duo brings together the N.04 hairbrush and the La Bonne Brosse strengthening serum for a simple and effective ritual that stimulates the scalp and strengthens hair from the roots.
The vegan, detangling N.04 brush provides an invigorating massage thanks to its soft nylon bristles. It stimulates microcirculation, promotes hair growth and gently detangles all hair types.
The strengthening serum, rich in skincare actives and prebiotics, respects the scalp microbiome thanks to its alcohol free formula. It hydrates, rebalances the scalp and strengthens hair from the very first use.
A complementary duo for a healthy scalp and visibly stronger, more radiant hair.
N.04 Brush: 21 cm Strengthening Serum: 100 ml approximately 2 months of use Yuka rating of the serum: 72 out of 100 Good
Online exclusive offer
How to use
How to use the strengthening serum and the massage brush
Before shampooing, apply the strengthening serum directly to the scalp to support long lasting hair vitality and strength. Thanks to its precision spray, distribute the treatment evenly over the roots by gently parting the hair. Then massage the scalp to activate microcirculation, help remove impurities and promote the absorption of active ingredients into the upper layers of the epidermis.
Leave on for ten to fifteen minutes, or extend the application overnight as part of an intensive one month treatment, one to two times per week. Rinse thoroughly and follow with your usual shampoo.
The massage brush ideally completes this ritual. Suitable for all hair types, including thick, curly, frizzy or sensitive hair. Use the brush on dry or slightly damp hair, after shampooing or treatments, for a revitalizing massage that stimulates the scalp and enhances the hair’s natural beauty. This gesture can be performed daily, in the morning or evening, according to your preference.
Key ingredients
99% ingredients of natural origin
35% rice water: hydrates*, remineralizes and restores strength and vitality to the scalp
Fermented raspberry extract, rich in AHA: brings shine, hydration* and radiance
Hyaluronic acid: absorbs and retains a large amount of water, ensures optimal hydration* even in very dry environments, stimulates cell cohesion and helps maintain skin firmness
Lactic acid, in synergy with phytic acid: gently exfoliates
Caffeine complex: stimulates and energizes hair growth, protects hair health and improves microcirculation
Prebiotic complex: helps maintain a balanced microbiome that protects against hair loss, for a healthy and long lasting bacteriological balance
Silicone free, free from artificial colorants, sulfate surfactant free, alcohol free and free from inert ingredients
We work with Colissimo, and our delivery times range from 4 to 10 business days.
Here are the detailed delivery times under normal conditions:
- Home delivery: 4 to 6 business days
- Pickup point: 4 to 6 business days
- Express delivery: 24 to 48 business hours for any order placed before noon
If you purchased your product on our website, you have 14 days from the delivery date to request a return or an exchange through our dedicated platform. In mainland France, Belgium, and Luxembourg, return shipping is free of charge. In the case of an exchange, the new delivery costs will also be covered by us!