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Why Do Nails Split?

7 December 2020
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There are several reasons that nails may split. Luckily, nail repair gel is an effective method for treating split nails that could be caused by: 

Potential Reasons for Split Nails


Biotin deficiency

Sometimes, having a biotin deficiency can cause your nails to crack. Though it is uncommon for this to be the reason. However, other signs of biotin deficiency include:

  • Hair thinning or loss
  • A red rash around your eyes, nose, or mouth
  • Pinkeye (conjunctivitis)
  • Depression
  • Less energy

If you experience these other symptoms, consider a visit to your family doctor for further information.


Harsh nail products

Nail polish and nail polish remover can have strong chemicals. If you use them a lot, they might weaken and dry out your nails. That makes them more likely to crack. The glues and dyes in acrylic nails could also cause a reaction.

If nail products are the reason your nails are cracked, you may also have:

  • Colour changes, such as yellowing
  • Dull nails
  • Avoid nail products that contain toluene and formaldehyde, two especially harsh chemicals. 



Diseases that may contribute to split nails include:

  • thyroid disease
  • liver disease
  • skin cancers
  • kidney disease



On the other end of the rarity spectrum is ageing. As we get older, it is more and more common for cracked or split nails to occur. It becomes increasingly beneficial to keep your nail repair gel handy, especially for women. They are more susceptible to these effects, but it can also happen to men.

brittle damaged nails after using shellac or gel-lacquer


Moisture can cause nails to become weak and brittle. Long-term exposure can cause the skin around the nail to soften. The nail itself becomes brittle, making it easier to break, bend, or split. Overexposure to moisture can occur while doing dishes, washing hands, or repeated nail polish use.


Picking or biting

Picking, biting or chewing your nails can cause them to split. When we age and the nails become more brittle, the risk of breaking increases. It can be a symptom of anxiety or stress, so perhaps therapy can help those wishing to reduce this habit in their life.



Injuries are also a good reason to experience a split nail. Avoiding damage to your nails is essential to prevent them from getting injured.



Fungal, bacterial, or yeast infections can change or embrittle the nails’ texture, resulting in weak nails that may be susceptible to splitting.



Psoriasis can affect both the skin and the nails. Psoriasis can cause the nail to thicken, crumble, or split. 



Dr. Mitchell Kline and Dr. Jeremy Green are widely recognized as two of the most admired and trusted dermatologists globally. Due to our patented Drs. Kline + Green™ product line, we can provide instant nail repair relief. To enjoy beautiful clean nails, place your order today. You won’t be disappointed.

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