Why do nails turn yellow?

One of the most common nail problems is yellowing. If this happens to you, you've probably resorted to nail polish to cover it up, but did you know that the cure can be worse than the problem? If you don't know why this is happening to you, we'll tell you the possible causes.

Yellowing of nails can occur for several reasons, but the main one is contact with cosmetic products that contain toxins. And if, in addition to using these products, you continue to use them to cover up the problem, it will only get worse. It's a vicious cycle you need to break out of NOW! But there are other health-related reasons why this problem can appear. Let's dive into those:

Causes of yellow nails

The use of enamels with toxins

The yellowish hue is caused by a substance called formaldehyde, which reacts with the keratin in your nails, leaving yellow stains. If you apply nail polish over these stains (especially if it contains formaldehyde), you'll only exacerbate the problem. Also, if you use dark-colored nail polish, its pigment can intensify the hue.

One possible solution would be to take a break from manicures (or take breaks between manicures) as they should regain their natural tone over time. It's also important to choose products that don't contain this substance (and eliminate as many toxic ones as possible). Choose nail polishes that are at least 7-free, and always use a protective base coat before applying the polish. This will also help the polish last longer; it won't penetrate the nail surface.

Deficiency of B vitamins

Vitamin A deficiency can be a symptom of yellow nails, but it can be more noticeable when there's a lack of biotin (or B7). If this is the problem, it can be remedied by taking biotin supplements, but the cause of vitamin deficiency is a nutritionally poor diet, which includes few vegetables.

Abuse of vitamin A or Retinol supplements

Another cause of yellow nails could be the overuse of vitamin A or retinol supplements. Why? Vitamin A can be found in the form of carotenoid pigment (what a curse word), which is the pigment found in orange fruits and vegetables (carrots, pumpkin, oranges, etc.). HOWEVER, a deficiency of this vitamin A can also cause yellow nails.

Excess of foods with beta-carotene

As we mentioned in the previous point, orange fruits and vegetables contain beta-carotene, a provitamin A, which also helps us tan, but in excess can also cause both the skin and nails to acquire a yellowish-orange hue.

Smoking

Yellow nails are also one of the many effects of nicotine. Cigarette smoke permeates the nails over the years, leaving them yellowish. There are home remedies to try to whiten them, but the best remedy (for this and your health) is to quit smoking.

Fungal infections

Onychomycosis, or a fungal nail infection, is characterized by thickening of the nail beds and their yellowing. These fungi are known for infecting the keratin of nails, especially those on the toenails. If this is your case, see a dermatologist.

Inflamed liver

This would undoubtedly be the most serious cause. If you notice your nails suddenly turning a bright yellow, it could indicate a liver problem, such as a hepatitis infection (liver inflammation). If this also affects the whites of your eyes, see a specialist.

We hope this has helped you resolve your concerns or identify what's causing this problem! But as always, if in doubt, consult a doctor.