Apple cider vinegar (ACV) has been a trusted natural remedy for centuries. Long before it became a TikTok beauty trend, people used it for its acidity and nutrient-rich properties. Often called a “miracle solution” for hair, ACV is praised for everything from balancing scalp pH to enhancing shine. Curious about whether the hype was real, I decided to try leaving it in my hair overnight—and here’s exactly what happened.
Why Apple Cider Vinegar Is Good for Your Hair
ACV contains acetic acid, which helps remove product buildup and restore the scalp’s natural pH balance. This makes it especially useful for:
- Fighting dandruff and itchiness
- Removing residue from styling products
- Adding shine to dull or dry hair
- Strengthening strands with vitamins and minerals
It’s also valued for its antibacterial and antifungal properties, making it a simple yet powerful addition to a natural hair care routine.
My Overnight ACV Hair Treatment
Before starting, I gathered a few essentials:
- Raw, unfiltered ACV
- Spray bottle
- Shower cap
- Old towel (to protect my pillow)
To prevent irritation, I diluted the vinegar with water in a 1:1 ratio and did a quick patch test on my scalp. Once everything checked out, I sprayed the mixture evenly across my hair and scalp, massaged it in, slipped on a shower cap, and went to bed.
The Next Morning: What I Found
When I woke up, there was only a faint vinegar scent. My hair wasn’t sticky or greasy—the mixture had dried cleanly overnight. After rinsing with lukewarm water and using a mild shampoo, I was ready to see the results.
The Results: Texture, Shine, and Scalp Health
The difference was immediate:
- My hair felt softer and smoother.
- Shine was noticeably enhanced, almost like a glossy seal over the strands.
- Frizz was reduced, giving my hair a sleeker look.
- My scalp felt refreshed and less itchy, a sign that the pH balance had improved.
While it’s too soon to measure long-term growth benefits, healthier scalp conditions often encourage stronger, healthier hair overall.
Important Things to Keep in Mind
- Always dilute ACV (undiluted vinegar is too harsh for the scalp).
- Do a patch test to check for sensitivity.
- Don’t overdo it—too frequent use may cause dryness. Once a week or every other week is plenty.
- Follow with a conditioner or mask for extra moisture.
Is ACV Better Than Other Treatments?
Compared to deep conditioning masks or oil treatments, ACV won’t add heavy moisture—but it does something unique: it clarifies and boosts shine without synthetic ingredients. It’s a budget-friendly, natural option for anyone looking to refresh their scalp and hair health.
Final Verdict
Leaving apple cider vinegar in my hair overnight was a surprisingly positive experience. My hair looked shinier, felt softer, and my scalp was noticeably calmer. While it shouldn’t replace conditioning treatments, ACV can be an excellent addition to a balanced hair care routine—affordable, natural, and effective when used wisely.