Yes, latisse can cause dark circles under your eyes. First, you should know that Latisse has active ingredients of bimatoprost. So it is used for skin care topical, dry eye, trichiasis. But on the other hand, it has some common side effects, such as eye pruritus, erythema of eyelid. Of course, it also can lead to dark circles. So you should just be careful when using it. In addition, you also should know that dark circles are usually caused by bad sleep habit and lack of sleep. So you should change your lifestyle and have a good habit. Also, drinking enough water, using some cool teabags is effective. In that way, they relieve your symptoms. Beside, you can eat some black chocolate which are rich in Lutein and zeaxanthin, which can do a good job to your dark circles and the sight. Also, many kinds of oil, such as the black seed oil is very effective to your dark circles too.