Thanks to the Swiss company Cilander's innovative process, your undershirt provides your body with a continuous supply of valuable vitamin C, vitamin E and ginger oil while you wear it. This strengthens your immune system, helping you to stay in top form. The active substances are microencapsulated. The friction generated while wearing the shirt ensures that they are absorbed by the body in the right doses. This effect lasts for up to 20 washes. After that, of course, you can still enjoy the comfort of your top-quality, Swiss-made undershirt.