Veinira Hair Color Shampoo 10 packs of 25 ml. The special formula can usually be applied in just 5 minutes. And the best part: it leaves no stain on your skin. All-in-one pouch. The formula is balanced for a perfect mix between the ingredients used. Veinira has been tested extensively on both men and women. Use our product not only to color your hair, but it is also perfect for your beard. It works on all hair types. Hair coloring lasts up to 30 days.