Apple cider vinegar (ACV) is often praised in natural beauty circles, especially as a home remedy for dandruff. While there’s no strong scientific proof confirming its effectiveness, many people swear by its benefits. It’s believed that ACV may help balance the scalp’s pH, promote the shedding of dead skin, and reduce fungal growth—all factors that can play a role in scalp health.

Some experts point out that ACV might ease dry scalp, which can be mistaken for dandruff. A 2022 review suggested it could help relieve dryness, but since dandruff and dry scalp have different underlying causes, it’s unclear how helpful ACV truly is for either. More clinical research is needed to confirm whether this common kitchen staple is actually a reliable treatment for scalp conditions.

What we do know is that ACV has mild antifungal and antibacterial properties. These qualities may help reduce certain bacteria on the scalp, like Staphylococcus, and potentially address mild fungal concerns. However, its effectiveness varies depending on the microbe—it may work well against some bacteria but is less effective against fungi like Candida at common concentrations.

If you’re curious about trying it, mix two parts ACV with one part water, apply it to your scalp, leave it for 15 minutes, then rinse. This can be done once or twice weekly—but always patch test first and stop use if irritation occurs. As with any home remedy, it’s best to consult a healthcare provider before adding it to your routine.