I Applied Apple Cider Vinegar to My Hair Overnight — The Next Day, This Is What Happened

I rinsed it all out in the shower with lukewarm water, then followed with a gentle sulfate-free shampoo and deep conditioner.

The Results?

My Scalp Was Sparkling Clean
Every bit of buildup, flakiness, and itchiness — gone. My scalp looked fresh and felt lighter, like it had been deeply purified.

Insane SHINE
Once my hair dried, I couldn’t stop looking at it in the mirror. The glossy finish was incredible. It looked like I had a salon glossing treatment — for less than $1.

Way Less Frizz
My hair, which usually gets frizzy at the roots, looked much more defined and smoothed, especially at the crown.

More Volume at the Roots
By removing buildup and balancing the scalp, the ACV rinse actually gave me a lifted, fluffier root. No product, just natural body.


But It Wasn’t All Perfect…

Despite the glow-up, there were a few things I didn’t love:

My scalp was a little red and sensitive
I have sensitive skin, and the vinegar left me with a slight redness that faded after a few hours.

Smell lingered even after shampooing
It wasn’t strong, but if someone sniffed my hair closely, they’d smell vinegar.

Risky for color-treated hair
I don’t color my hair, but if you do, vinegar might strip or fade color over time — especially when left on overnight.


What Experts Say: Is It Safe to Leave Apple Cider Vinegar Overnight?

Most dermatologists and trichologists (scalp specialists) don’t recommend leaving ACV overnight, especially on sensitive or color-treated hair.

Instead, they advise:

🔹 Diluting it properly (1 part ACV to 3 parts water)
🔹 Using it once or twice per week
🔹 Leaving it on for 5–20 minutes max
🔹 Following with a good conditioner


My Final Verdict

Would I do it again? Probably not overnight — but I will definitely use apple cider vinegar as a weekly rinse from now on. The results were too good to ignore:

✨ Shinier, smoother, lighter hair
🧼 Cleaner, healthier scalp
🌿 Less itchiness, fewer flakes
💨 Bouncier roots and less buildup

Who Should Try It:

  • People with dandruff, itchy scalp, or buildup

  • Those looking for a natural hair shine booster

  • Anyone who wants a scalp reset without harsh chemicals


Frequently Asked Questions (FAQ)

❓ Can apple cider vinegar cause hair damage?

If left on too long or used undiluted, yes — especially on dry, brittle, or colored hair.

❓ Does ACV help hair growth?

While it doesn’t make hair grow directly, it improves scalp health, which promotes better growth conditions.

❓ Can I use ACV every day?

No. 1–2 times per week is plenty. Overuse can dry out your scalp and hair.

❓ Can ACV treat lice or scalp parasites?

Yes, it can help repel lice and loosen nits from the hair shaft, especially when combined with coconut oil and tea tree oil.

Final Thoughts: Use ACV Wisely, and Your Hair Will Thank You

Nature is powerful. And sometimes, it only takes one humble kitchen ingredient — like apple cider vinegar — to transform your hair. While the overnight method gave me dramatic results, it also showed me how important moderation is when using natural remedies.

My advice? Start small. Test it out. Your healthiest hair might be just one rinse away.

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