The Symbiose anti-dandruff hair serum helps to target dandruff at the source while you sleep when scalp regeneration is at its most. With 8 hours of continuous action, dandruff and flakes are eliminated while the prebiotic helps to balance scalp microbiome. The non-sticky and non-greasy dandruff scalp serum formula makes it the perfect scalp treatment for all hair types. After continuous use, scalp looks healthier and stronger.
Benefits: 
Prebiotic helps balance scalp microbiome*
Eliminates dandruff and flakes
8-hour continuous action at night during the scalp’s most​ regenerative moment *​
Scalp looks healthier and stronger
Soothes & comforts scalp, scalp feels less sensitive
No sulphates or silicone 
*COSMETO-CLINICAL TEST RESULTS, 37 PEOPLE DURING 4 WEEKS, 3 APPLICATIONS PER WEEK
***For heavy dandruff and a medical condition: please see your healthcare professional.
Key Ingredients: 
A unique synergy of actives, infused in luxurious formulas, creates immediate and long-term protection against dandruff.
Salicylic Acid: Helps dissolve flakes and acts on consequences of dandruff
Piroctone Olamine: Reduces yeasts proliferation, slows down cellular renewal speed and durably acts on the formation of dandruff
Bifidus Extract: Known to help maintain a healthy scalp ecosystem
How to use: Use the Symbiose scalp serum for dandruff-prone scalps at least 3 times a week before going to bed, during a 4-week period. Apply 4 doses on dry or towel-dried scalp, section by section. 1 dose = 1 pipette until the mark. Do not rinse. Keep in overnight. In case of contact with eyes, rinse them immediately and thoroughly. Use as part of an anti-dandruff routine with other Kerastase Symbiose products.