SOURENNE · WEEKLY HAIR RITUAL
Visible strength. Touchably soft.
A rich weekly keratin mask for dry, stressed-looking lengths. Powered by northern chanterelle for smoother, fuller-looking shine.
THE WEEKLY SOAK · 170 ML
WEEKLY CARE FOR STRESSED LENGTHS
Repair care that still feels like hair.
The Weekly Soak is made for lengths that feel rough, dry or overworked. It restores softness, manageability and shine without turning wash day into a project.
THE HERO PRODUCT
The Weekly Soak
CHANTERELLE KERATIN MASK
- 01
Helps reduce breakage and the appearance of split ends.
- 02
Leaves dry lengths feeling softer, smoother and easier to manage.
- 03
Supports elasticity and a healthy-looking, reflective shine.
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NORTHERN CHANTERELLE
A forest mushroom for a silkier finish.
Northern chanterelle is naturally rich in B-group vitamins and smoothing biopolymers. In hair care, its extract helps hair look smoother, fuller and shinier—an uncommon botanical chosen for the finish it creates.
THE RITUAL
Ten minutes. Once a week.
- 01
Cleanse.
Begin with freshly washed, towel-damp hair.
- 02
Soak.
Work through mid-lengths and ends. Leave for 5–10 minutes.
- 03
Rinse.
Rinse thoroughly, then style as usual.
FORMULA STANDARD
Natural certification. No borrowed authority.
COSMOS NATURAL certified by ECOCERT Greenlife. 98% of the formula is of natural origin and 12% is of organic origin.
Every claim on this page is deliberately limited to what the formula and the hair can show.
90-DAY MONEY-BACK GUARANTEE
Let your hair decide.
Finish your jar as directed. If it is not right for your hair, contact us within 90 days of delivery.