Yes, it works on tinted windows as well as non-tineted windows. Will leave a streak free finish.

Always as a precaution: Make sure the car is in the shade and that the windows cannot get hot from direct sunlight during the cleaning process. Close the windows whenever possible. Spray on a glass towel 2 sprays of Optiglass: Make sure the towel is damp, but not too soaked. We always start from left to right on the outside of the car windows with the damp glastowel. Rub it out first and there you turn the cloth to wipe off streak-free with the dry side of the glass towel. Then it's time for the outside rub it with the damp cloth but now from top to bottom. This so that if there are still a few streaks you can quickly see which side to be on!

To remove steaks, use a fresh glass towel or microfiber cloth. From top to bottom, move slowly and evenly, being careful not to exert too much force. Take care not to use too much optiglass and to make sure the cloth is not too wet. If streaks persist, attempt a different cleaning technique.