Which color indicates positive ion treatment in iontophoresis?

In iontophoresis, the color that indicates positive ion treatment is red. This association is rooted in the color coding used in various electrical devices and treatments within the beauty and skincare industry. The red color is typically used to signify positive polarity, which is essential when administering treatments that require the introduction of positively charged ions into the skin.

The positive ions used in these treatments can help in various applications such as enhancing the absorption of certain products that contain ingredients beneficial for the skin. Understanding the significance of the red color in this context ensures that practitioners can effectively utilize the iontophoresis technique while adhering to the principles of polarity, maximizing the treatment's effectiveness.

The other colors, while they may serve different purposes or indicate different settings in other treatments, do not correspond to the positive ion treatment in iontophoresis.