
Gel nails are a popular choice for those seeking a long-lasting manicure. However, it can be frustrating when, after just a few days, your gel nails start to turn brown. So, what's causing this discolouration? There are several potential culprits, including over-curing or under-curing during the drying process, exposure to harsh chemicals such as cleaning agents, skincare, or hair products, and even something as simple as handling spices like turmeric while cooking. Additionally, smoking and fungal infections can also lead to brown spots on your gel nails. While it may be challenging to pinpoint the exact cause, being mindful of these factors can help prevent discolouration and keep your gel manicure looking its best.
Characteristics and potential causes of gel nails turning brown
| Characteristics | Values |
|---|---|
| Curing process | Over-curing or under-curing during the drying process |
| Exposure to UV light | Over or under exposure to UV light during curing |
| Contact with strong and harmful chemicals | Cleaning agents, makeup products, hair dye, skincare products, spices, and tobacco |
| Medical conditions | Fungal infections, bacterial infections, or other conditions that cause discolouration |
| Poor quality gels | Use of low-quality or inferior products |
| Other factors | Food preparation, tanning products, certain medications, and exposure to sunlight |
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What You'll Learn

Over-curing or under-curing during the drying process
Curing is the process of drying gel nails immediately after application. The UV light hardens the gel, allowing the manicure to last longer. However, if the curing process is overdone or underdone, the material can start to turn brown after a few days or a week. This is because the nails were exposed to the UV lamp for too long or too short a time.
The UV lamps used in salons typically have a timer that automatically turns off the machine after the recommended time has elapsed. However, if the timer is not set correctly or if the nails are not positioned properly under the lamp, over-curing or under-curing can occur.
To avoid over-curing or under-curing, it is important to follow the manufacturer's instructions for the specific gel nail product being used. It is also recommended to use a reputable nail salon with experienced technicians who are familiar with the proper curing process and the intensity and duration of UV light exposure required for drying the gels.
In addition to over-curing or under-curing, other factors that can contribute to gel nail discolouration include exposure to strong chemicals such as cleaning agents, makeup products, hair dye, skincare products, and spices like turmeric. Smoking and medical conditions can also cause gel nails to turn brown.
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Exposure to strong chemicals
Makeup products can also cause gel nails to turn brown. Accidentally staining your nails with makeup can result in difficult-to-remove brown marks. Additionally, certain chemicals in skincare products can lead to discolouration. For example, hydroquinone, a common ingredient in pigmentation-targeting skincare products, and tretinoin, an acne-treating ingredient, have both been reported to cause brown nail discolouration.
Exposure to hair dye or hair products can also be a culprit. Some hair products for blonde hair, such as those that remove yellow tones, can leave gel nails looking dirty or discoloured after a few days. Similarly, exposure to self-tanning products or tanning beds can cause problems with gel nails and lead to discolouration.
Another factor to consider is the use of spices in cooking. Turmeric, in particular, is known to have a high staining potential and can cause gel nails to turn brown. It's advisable to avoid handling spices and ingredients with high staining power when cooking to prevent discolouration.
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Poor-quality gels
Unlike acrylic nails, gel nail polishes are non-porous, meaning they do not soak up liquids or get stained when they come into contact with other chemicals or dirt. However, if the gels are of poor quality, they can get stained easily.
Another cause of discolouration in poor-quality gels is their reaction with certain skincare products. Some chemicals found in skincare products, such as hydroquinone and tretinoin, are known to cause brown marks on gel nails. These chemicals are commonly used in pigmentation-targeting and acne-treating products, respectively. When these chemicals come into contact with poor-quality gels, they can react and cause the nails to turn brown.
Additionally, poor-quality gels are more likely to be affected by fungal infections. Fungal infections are caused by bacteria and can lead to discolouration, thickening of the nail, and rough edges. If left untreated, fungal infections can cause permanent damage to the nails.
To avoid discolouration due to poor-quality gels, it is recommended to visit a reputable nail salon that uses high-quality products. While these salons may charge more, it is worth the investment to ensure your manicure lasts and your nails stay healthy.
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Fungal infections
Gel nails can be a great way to ensure your manicure stays pristine for longer. However, there are several reasons why gel nails can become discoloured and turn brown. One of the most common causes is fungal infections, which can lead to thickening of the nail, rough edges, and yellow colouring. If left untreated, these infections can cause permanent damage to your nails.
Fungal nail infections are relatively common, affecting about 10% of the adult population. However, certain factors can increase your risk of developing this condition. For example, individuals with weakened immune systems, diabetes, or circulation problems are more susceptible to fungal nail infections. Additionally, those who frequently wear tight-fitting or closed-toe shoes, swim in public pools or share nail tools, have a higher chance of contracting a fungal infection.
To prevent fungal nail infections, it is essential to maintain good nail hygiene. This includes keeping your nails clean, dry, and trimmed. When visiting nail salons, ensure that the tools used are properly sanitised to avoid any potential infections. If you notice any signs of a fungal infection, such as discolouration, thickening, or distortion of the nail, it is important to seek treatment promptly.
There are various treatment options available for fungal nail infections. Topical antifungal medications, such as creams or nail polishes, can be applied directly to the affected area. Oral antifungal medications may also be prescribed in more severe cases. It is important to consult a healthcare professional for proper diagnosis and treatment to prevent further complications and ensure the safe and effective management of the infection.
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Medical conditions
While there are many reasons why gel nails might turn brown, some medical conditions can also lead to discolouration. Firstly, fungal infections can cause discolouration, thickening of the nail, and rough edges. If left untreated, the nails may turn black and cause permanent damage. Another potential cause is a bacterial infection, which can lead to similar symptoms.
Additionally, some medications and treatments can cause gel nails to turn brown. For example, hydroquinone, a topical depigmenting agent used to treat pigmentation, has been known to cause brown nail discolouration. Tretinoin, a medication used to treat acne and sun-damaged skin, has also been reported to cause browning of nails.
It is important to note that while these medical conditions can lead to discolouration, improper care or exposure to harsh chemicals can also be the culprit. To maintain the colour and integrity of gel nails, it is recommended to avoid over-curing or under-curing during the drying process, as this can cause discolouration. Additionally, contact with harsh chemicals, such as cleaning agents, makeup, or skincare products, can also lead to brown spots and discolouration.
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Frequently asked questions
Gel nails can turn brown due to over-curing or under-curing during the drying process. They can also be discoloured by exposure to UV light, harsh chemicals, or smoking.
A small amount of nail polish remover can be used to remove brown stains from gel nails. An alternative solution is to mix lemon juice and baking soda, then soak your nails in the mixture for 10-15 minutes.
To prevent discolouration, avoid exposure to UV light and harsh chemicals. When doing tasks that involve harsh chemicals, such as cleaning, it is recommended to wear gloves.
Yes, certain highly pigmented foods such as turmeric, ghee, coconut oil, and tamarind can cause gel nails to discolour.
Yes, discolouration of gel nails can be caused by certain medical conditions. Additionally, fungal infections can cause yellowing and thickening of the nail.











































