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How to use our Deep Conditioning Hair Mask, Masque Extentioniste:
Step 1. Apply no more than a hazelnut-sized amount of our deep conditioning hair mask to washed and towel-dried hair.
Step 2. Massage through hair ensuring to coat every strand fully.
Step 3. Leave this hair growth mask on for 5 minutes and rinse thoroughly.
Step 4. Our best deep conditioner for dry hair can be used daily with Bain Extentioniste for the full strengthening and lengthening benefits.
Learn how to use the Masque Extentioniste video tutorial
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Full Ingredient List


  • Hair Mask Ingredients: //www.kerastase.ca/on/demandware.static/-/Sites-kerastase-master-catalog/default/dw92954862/ingridients/ingridients.jpg" />
    Aqua / Water ● Cetearyl Alcohol ● Amodimethicone ● Behentrimonium Methosulfate ● Behentrimonium Chloride ● Ethanolamine ● Maleic Acid ● Phenoxyethanol ● Isopropyl Alcohol ● Benzoic Acid ● Trideceth-6 ● Hydroxypropyl Guar ● Amyl Cinnamal ● Hexyl Cinnamal ● Benzyl Alcohol ● Cetrimonium Chloride ● Linalool ● Hydroxycitronellal ● Citronellol ● Limonene ● Benzyl Cinnamate ● Creatine ● 2-Oleamido-1,3-Octadecanediol ● Parfum / Fragrance.





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