Kerastase Serum Extentioniste is a highly concentrated serum to help strengthen and fortify hair for reduced breakage. Its non-greasy formula helps to protect the appearance of the scalp from environmental aggressors. Serum Extentioniste helps to:

• Purifying  & protecting the scalp
• Smooth the fibres of your hair 
• Promote a healthy scalp 

How to use:

1. Apply maximum 3 pipettes of Serum Extentioniste along all the scalp, once or twice a week.
2. Using the tips of the fingers, work the Serum into the scalp, using circular motions.