Apple cider vinegar (ACV) has long been praised for its natural cleansing and balancing abilities, particularly in hair care routines. Rich in acetic acid and infused with vitamins B and C, ACV works to remove excess oil, product residue, and bacteria from the scalp. By restoring the scalp’s pH balance, it can help reduce dandruff, calm itchiness, and create a healthier foundation for hair growth. Many beauty enthusiasts have experimented with leaving diluted ACV on their hair overnight to maximize these benefits and achieve a deeper clarifying effect.

A popular method involves mixing raw, unfiltered ACV with water in equal parts to prevent irritation. After performing a patch test, the mixture can be applied using a spray bottle, gently massaging it into the scalp to improve circulation. To protect bedding, the hair is covered with a shower cap and wrapped in a towel overnight. By morning, users often report softer, smoother strands and a subtle, natural shine — though a faint vinegar scent may linger until rinsed.

Once rinsed and shampooed, the results typically become even more noticeable. The scalp feels cleaner, the hair lighter and easier to manage, and frizz visibly reduced. While ACV doesn’t directly stimulate hair growth, its ability to clarify the scalp and seal the hair cuticle can indirectly encourage healthier growth over time. The refreshed, balanced scalp environment supports stronger, more resilient strands and improves the overall texture of the hair.

Still, caution is essential. Because ACV is acidic, it should always be diluted and used sparingly, especially for those with sensitive or dry scalps. Leaving it on too long or using it too frequently may cause dryness or irritation. Following up with a moisturizing conditioner or hair mask can help restore balance. When used correctly, however, apple cider vinegar remains a simple, affordable, and effective natural remedy for enhancing shine, soothing the scalp, and promoting lasting hair health.