Cosline eyeliner is not a specific product, but eyeliner in general is a cosmetic product that applies color to the area around the eyes to accent and highlight the appearance of the eyes. Eyeliners are used to emphasize the eyelids and/or to change the perceived shape of the eyes. They contain special ingredients that apply color where it is needed in a precise and controlled manner. The safety of eyeliners is established by selection of ingredients that are safe and suitable for this purpose. In addition, eyeliners are assessed for their potential to cause skin irritation or cause allergic reactions.

The ingredients of eyeliners can vary depending on the brand and type of eyeliner. However, some common ingredients include:

Positive:

• Special ingredients that apply color where it is needed in a precise and controlled manner
• Some eyeliners are vegan-friendly, never tested on animals, paraben-free, and gluten-free

Negative:

• Traditional eye makeup products such as kohl, kajal, al-kahl, or surma, typically applied as eyeliner, often contain lead and are not permitted in any cosmetic or personal care product in the U.S.
• Kajal (kohl) has been reported to cause eye infections and other eye problems

In conclusion, the ingredients of eyeliners can vary depending on the brand and type of eyeliner. However, they are formulated to ensure that potentially harmful microorganisms cannot grow and multiply, and are assessed for their potential to cause skin irritation or cause allergic reactions. Some eyeliners are vegan-friendly, never tested on animals, paraben-free, and gluten-free. However, traditional eye makeup products such as kohl, kajal, al-kahl, or surma, typically applied as eyeliner, often contain lead and are not permitted in any cosmetic or personal care product in the U.S. Kajal (kohl) has also been reported to cause eye infections and other eye problems.