Can I use this dye on my eyebrows or eyelashes?

No. This cream dye is intended for the hair on the head, the beard and the moustache, and the instructions specifically say to avoid eyebrows and eyelashes. That warning is direct, not a suggestion. A product that develops colour inside the hair and requires a 48-hour patch test is not meant for the thin skin and delicate area around the eyes.

If you want to darken grey eyebrows so they match the beard or hair, use a product made for that purpose, such as an eyebrow pencil, powder or brow gel. Those products are designed for the brow area and give you much more control over the shade and the shape. They are also easier to remove or adjust if the colour is not what you expected.

For beard and moustache colouring, keep the cream on the hair and avoid getting it on the lips or inside the mouth. Do not apply the dye to irritated, broken or damaged skin. If it gets into the eye despite the precautions, rinse the eye with clean water for several minutes and get medical advice if pain or redness persists.