Apple Cider Vinegar: Good for Hair?

Apple Cider Vinegar: Good for Hair?

By Hairstory

Published on September 27, 2024 — 5 min read

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Apple cider vinegar (ACV) has a reputation as the ultimate does-it-all, health-enhancing ingredient for the body from bug bites to kidney stones – and rinsing hair. 

But should you be taking your pantry into the bathroom and using salad dressing for hairdressing? And is apple cider vinegar good for your hair? In theory, Yes. But in practice? There are reasons to be cautious of this eco friendly hair care practice. Here are the ABCs of ACV.

 

pH balance

A 2014 study supports the claim that ACV hair rinse can lower pH to improve hair health. Apple cider vinegar is acidic (low pH) and is high in acetic acid. Dull, brittle, or frizzy hair tends to be more alkaline or higher on the pH scale, and high alkalinity can contribute to friction, breakage, and dryness.

The idea is that an acidic substance helps lower pH to bring hair back into balance and support smoothness, strength, and shine. For this reason, an apple cider vinegar rinse is popular for those who are attempting either a low poo shampoo or no poo shampoo hair care approach.

Antimicrobial Action

Research supports the disinfectant power of ACV and its ability to help control the bacteria or fungi (Candida albicans and Aspergillus niger) that can lead to scalp and hair problems, such as minor infections or scalp itchiness. However, no research or science supports its ability to control flaking or dandruff as a result of dry scalp. 

Mineral Supplements

There is no science to back claims that ACV is rich in vitamins C and B. But it is a proven source of manganese, which is associated with preventing changes in hair pigmentation and growth. It is also rich in calcium, which can promote healthy hair growth, potassium, the lack of which can lead to hair loss, and iron, which promotes shine and strength.

Color Retention

As opposed to washing hair with baking soda, some experts insist that ACV can extend the life of hair color when applied after hair dye is rinsed. Most dyes are alkaline and open up the hair cuticle so that they can penetrate to the hair’s inner cortex to produce a color change. An ACV rinse may reseal the cuticle to not only help hair color last longer, but also make hair shinier (smoother and therefore more reflective) and easier to comb.

(BIG) BUT…

If you’re not careful, you can get burned. Literally. That same acetic acid that ACV contains is known to be caustic, which means it may irritate or burn the skin. In other words, it cause inflammation rather than reverse it.

Pure ACV will definitely start degrading your hair, and for that reason, always dilute ACV before using it topically or mix with oil as a carrier. And never allow contact with your eyes (if it happens, wash out with water immediately).

By taking the DIY approach, you may be doing more harm than good without a complimentary moisturizing regimen to replace the oils that an ACV rinse can strip away. Otherwise, you may be drying out your scalp and damaging already dry ends.

If you want to stop using your regular shampoo and discover a hair product that promotes healthy hair, an ACV hair rinse may be for you. Just consider the points mentioned above to avoid any more harm to your hair, and remember that if used correctly that ACV can help with hair breakage, an itchy scalp, dandruff, and frizzy hair.

At the end of the day (or the beginning), while ACV is an effective clarifier that removes product build-up and an exfoliant that removes dead skin cells, it does not actually clean your hair.

And all of this is precisely why we developed New Wash (Deep). This addition to the New Wash family is made with a healthy – and safe – dose of ACV to give you all its benefits. We also included Argan oil – often called “liquid gold” – which is full of moisturizing properties with fatty acids (oleic and linoleic) that help prevent dryness, reduce fizziness, and boost shine, anti-inflammatory properties to help prevent or improve skin conditions, including psoriasis and seborrheic dermatitis. Its antioxidant activity prevents dry hair and other damage from ultraviolet rays.

* * *

So our best advice is to leave the Bragg’s in the kitchen – or use it to clean any room in your house – but leave proper hair cleansing to the experts and get yourself a bottle of New Wash (Deep), the best hair cleanser you’ll ever use.

Frequently Asked Questions

  • Is apple cider vinegar good for your hair?
    Apple cider vinegar can benefit hair in theory, but requires caution in practice. Its acidity can help lower hair pH, reduce frizz, and improve smoothness and shine. However, undiluted ACV is caustic, can irritate or burn the skin, and may strip natural oils — so it must always be diluted before applying to hair or scalp.
  • How does apple cider vinegar affect hair pH?
    Apple cider vinegar is acidic and high in acetic acid, which can help lower the pH of hair. Dull, brittle, or frizzy hair tends to be more alkaline, and high alkalinity contributes to friction, breakage, and dryness. An ACV rinse can help bring hair back into a more balanced pH range, supporting smoothness, strength, and shine.
  • Does apple cider vinegar help with scalp itchiness or infections?
    Research supports ACV's antimicrobial properties, including its ability to help control bacteria and fungi such as Candida albicans and Aspergillus niger, which can lead to minor scalp infections and itchiness. However, there is no scientific evidence that ACV can control dandruff or flaking caused by dry scalp.
  • What minerals in apple cider vinegar benefit hair?
    Apple cider vinegar is a proven source of manganese, which is associated with preventing changes in hair pigmentation and growth. It also contains calcium, which promotes healthy hair growth; potassium, a deficiency of which can contribute to hair loss; and iron, which promotes shine and strength.
  • Can an apple cider vinegar rinse help preserve hair color?
    Some experts suggest that an ACV rinse applied after dyeing can help extend color life. Most hair dyes are alkaline and open the hair cuticle to deposit color; an acidic ACV rinse may reseal the cuticle afterward, helping color last longer while also making hair shinier and easier to comb.
  • What are the risks of using apple cider vinegar on hair?
    The acetic acid in ACV is caustic and can irritate or burn skin if undiluted. Pure ACV will degrade hair over time, and without a complementary moisturizing routine, it can strip away natural oils, drying out the scalp and damaging dry ends. ACV should never contact the eyes — rinse immediately with water if it does.
  • Does apple cider vinegar actually clean hair?
    No. While ACV is an effective clarifier that removes product buildup and an exfoliant that removes dead skin cells, it does not actually clean hair on its own. For a complete cleanse that safely delivers ACV's benefits, New Wash (Deep) by Hairstory is a detergent-free cleansing cream formulated with ACV and Argan oil.
  • What is a safer alternative to a DIY apple cider vinegar hair rinse?
    New Wash (Deep) by Hairstory is a detergent-free hair cleansing cream that contains a safe, balanced dose of apple cider vinegar alongside Argan oil. It delivers the pH-balancing and clarifying benefits of ACV while providing moisturizing fatty acids to prevent dryness, reduce frizz, and boost shine — without the risks of a homemade rinse.

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