Gliss bio-Tech hair care mask 300 mlbio-Tech 2-in-1 hair care mask repairs and regenerates the hair from root to tip with its new formula strengthened with stem cell complex and rose water. Take the product in your palm and apply it to your washed and rinsed hair by massaging it. Wait for 2-3 minutes and rinse. Leave a hot towel on your wet hair for an extra conditioning effect.