Apple cider vinegar (ACV) has become a popular natural remedy for a variety of hair concerns. From combating dandruff to enhancing shine, many people swear by its benefits. However, as with any beauty treatment, it’s important to be aware of potential side effects, especially when using a concentrated substance like ACV on your hair and scalp.

In this article, we will explore the side effects of washing hair with apple cider vinegar, helping you make an informed decision about whether it’s right for your hair care routine.

Before diving into the potential side effects, let’s briefly look at why ACV has gained popularity as a hair treatment. Apple cider vinegar is believed to:

• Balance scalp pH: ACV can help balance the acidity of the scalp, which may promote healthier hair growth and prevent excess oil production. 
• Combat dandruff: Its antifungal and antibacterial properties may help combat the yeast responsible for dandruff. 
• Enhance shine: Apple cider vinegar helps smooth the hair cuticle, which reflects light and gives your hair a shiny appearance. 
• Improve detangling: It helps remove product buildup, making it easier to detangle your hair.
  

Despite these benefits, ACV isn’t suitable for everyone, and overusing it or using it incorrectly can cause issues.

While apple cider vinegar can offer numerous advantages, there are several side effects to be aware of. These can range from mild to severe, depending on the concentration and frequency of use.

One of the most common side effects of using apple cider vinegar on the scalp is irritation. ACV is highly acidic, with a pH level ranging from 2 to 3, which can disrupt the natural pH balance of your scalp if used too often or in high concentrations. This may lead to:

• Redness
  
• Itching
  
• Dryness
  
• Burning sensations
  

To prevent scalp irritation, always dilute apple cider vinegar with water. A good rule of thumb is to mix 1-2 tablespoons of ACV with 1 cup of water.

ACV has astringent properties, which can strip the hair of natural oils when used excessively. This can leave your hair feeling dry and brittle. While ACV can be beneficial for removing buildup and promoting shine, overuse can result in:

• Increased frizz
  
• Dry, unmanageable hair
  
• Breakage and split ends
  

To avoid dry hair, it’s important to use apple cider vinegar sparingly, ideally once or twice a week, and always dilute it. Follow up with a hydrating conditioner to restore moisture to your hair.

If you have dyed or chemically-treated hair, apple cider vinegar may contribute to color fading. The acidity of ACV can strip away some of the color, especially if you use it too often or in too high a concentration. This may result in:

• Faded hair color
  
• Uneven hair tones
  
• Dullness in color-treated hair
  

If you have colored hair, it’s advisable to consult your stylist before using apple cider vinegar. You may want to limit its use or test it on a small section first to ensure it doesn’t affect your color.

While rare, some users have reported hair thinning or excessive shedding after using apple cider vinegar. This could be caused by overuse or improper application. If you notice significant hair loss after using ACV, stop using it immediately and consult a dermatologist.

This side effect is more likely to occur if you have sensitive skin or are prone to scalp conditions such as psoriasis or eczema. Always perform a patch test before applying ACV to your entire scalp to check for any allergic reactions or sensitivities.

Using undiluted apple cider vinegar directly on the scalp can cause chemical burns, especially if left on the skin for too long. The acidity of ACV is strong enough to irritate the skin and cause damage when used improperly. Symptoms of a chemical burn include:

• Blisters
  
• Redness and swelling
  
• Scabbing
  

If you experience any of these symptoms, rinse your scalp immediately with cool water and seek medical attention if necessary.

To avoid the side effects mentioned above, it’s crucial to use apple cider vinegar correctly. Here’s how you can safely incorporate it into your hair care routine:

• Dilute it: Mix 1-2 tablespoons of apple cider vinegar with at least 1 cup of water. This helps reduce the acidity and minimizes the risk of irritation.

• Limit frequency: Use ACV as a rinse no more than once or twice a week, depending on your hair type and needs.

• Follow up with conditioner: After using apple cider vinegar, always follow up with a hydrating conditioner to restore moisture to your hair.
  
  
• Do a patch test: Before applying ACV to your scalp, perform a patch test on a small area to check for any allergic reactions.

If you’ve experienced side effects from using apple cider vinegar or if you prefer to avoid it altogether, there are plenty of alternatives that can provide similar benefits without the risks:

• Aloe vera: Known for its soothing and moisturizing properties, aloe vera can help balance your scalp’s pH and reduce dandruff.

• Coconut oil: A natural moisturizer that nourishes the hair and scalp, coconut oil can also help with dandruff and hair breakage.
  
  
• Lemon juice: A milder alternative to apple cider vinegar, lemon juice can help clarify the scalp without the risk of irritation.

Apple cider vinegar can be a powerful natural treatment for hair when used correctly. While it offers many benefits, it’s important to be mindful of the potential side effects, especially if you have a sensitive scalp or color-treated hair. To avoid irritation, always dilute apple cider vinegar, use it sparingly, and follow up with conditioner.

If you’re uncertain about using ACV on your hair, it’s always a good idea to consult with a dermatologist or hair care professional to determine the best course of action for your unique hair type.