Yellow tinted nails: These can be caused by the use of nail polish, especially with dark or red colors in general. Use a base coat to protect your nails from nail polish.
Green tinted nails: This mean that there is a fungal infection which, if you have natural nails, can be because of poor hygiene. When it appears on artificial nails it’s because there may be an air bubble on the acrylic or gel letting the water and moist get in between the nail and the product, this is known as greenie, in that case the artificial nail needs to be removed and you should consult a doctor for the proper treatment. Any fungal infection on nails needs to be treated as soon as possible because it can get into the blood stream, creating a bigger problem.
Brown tinted nails: These are usually caused by injuries. For example, if you wear the wrong shoes, it can cause trauma to your nails. This is very common to see in people who run or practice sports.
Black tinted nails: This can also be caused by injures, but these kind of spots can also say there is a problem with your health. I have seen these kind of spots in clients with cancer. Pay attention to what your body is trying to tell you.
White tinted nails: This happens when your nails are dry meaning it’s time to give your nails a break from polish otherwise your nails will be brittle and then will split and break. The white spots can also be scars from minor injuries.