Serge d'Estel Paris Vegetable Keratin Hair Mask is applied to damp hair, just after washing your hair using the shampoo from the same range. Enriched with PhytoKeratin, organic flaxseed oil and shea butter, it provides your hair with the benefits necessary to preserve it from any stubborn locks and maintain your straightening in a lasting way. - Our straightened hair mask contains 98.9% of ingredients of natural origin and is 100% vegan. - Made and packaged in Paris, in the heart of our workshop in the 11th arrondissement. - Not tested on animals -Recycled and recyclable pot