There are a few pros to color-changing lipstick. One advantage is that the formula is usually lightweight. Another benefit is that the color depends on your body, which surprises you every time. You do not need other lip products to get some color on your lips. Moreover, this is perfect for light or minimal makeup looks.  Some cons to color-changing lipstick are that some brands offer only a few shades of color-changing lipsticks. There is no assurance that the color matches your lips. It could be too light, too bright, or even too dark for your liking. Now, remember that these lipsticks could depend on the pH or temperature of your lips and not other factors.