What Really Happens When You Use Apple Cider Vinegar on Your Scalp?

Some lab-based studies suggest ACV has mild antimicrobial and antifungal abilities. This could make it helpful in certain skin-related situations, particularly where bacteria like Staphylococcus are involved. But these properties aren’t one-size-fits-all.

In one particular study, researchers found that full-strength ACV had strong effects against certain bacteria. But at lower concentrations—such as 25%—its ability to fight Candida yeast (a fungus sometimes associated with scalp issues) was weaker. This tells us that effectiveness depends on both the concentration and the specific organism involved.

Ultimately, “more clinical research is needed to evaluate ACV’s true effectiveness and safety for skin use.”

How People Use ACV on Their Scalp (Anecdotal Methods)

Despite limited evidence, some people continue to use ACV as part of their hair care. According to the 2022 review and popular home remedies, here’s how it’s commonly used:

  • Dilution: Combine 2 parts ACV with 1 part water to reduce its acidity.
  • Application: Apply the mixture to the scalp, massaging it in gently.
  • Let it sit: Allow the solution to remain on the scalp for around 15 minutes.
  • Rinse thoroughly: Wash out the mixture using warm water.
  • Repeat cautiously: This can be done up to twice a week, but not more frequently.

⚠️ Be extremely careful not to get ACV in your eyes, as it can cause a strong burning sensation.

A Word of Caution

It’s always wise to consult a healthcare provider before applying ACV to your scalp or skin, especially if you’re managing an ongoing condition. A dermatologist can help determine whether it’s suitable for you.

And remember: If you experience redness, stinging, or discomfort, stop using it right away. These could be signs that your skin is irritated or sensitive to the treatment.


Final Thoughts: Natural Doesn’t Always Mean Risk-Free

Apple cider vinegar continues to spark curiosity for its potential in home wellness routines. While it’s natural and easy to access, that doesn’t make it universally effective or safe. Until more research is done, ACV should be used cautiously and thoughtfully—especially on sensitive areas like your scalp.