Trial Design Trial hair mask small in size easy to carry Specially designed for people who want to try our products Collagen Hair Mask Penetrates hair to provide intense hydration leaving hair smooth and shiny Suitable for All Hair Types Including color treated and chemically treated hair the formula free of parabens and sulfates can nourish hair without increasing hair weight Suggested Usage Simply apply it to clean and damp hair let it sit for 510 minutes and then rinse thoroughly For optimal results it is recommended to use a mask 12 times a week About Karseell Karseell focuses on developing highquality products and has always been committed to the hair care industry bringing the best hair care products to the world