15 Apple Cider Vinegar Uses for Health and Home
Discover 15 practical uses for apple cider vinegar — from digestive support to natural cleaning, hair care, and skincare. What actually works and what doesn't.
Apple cider vinegar (ACV) has been used in households for centuries, and the internet has only amplified the claims around it — some of which are well-supported, many of which are exaggerated, and a few of which are flat-out wrong.
This guide covers 15 uses that have either real evidence behind them or practical household utility. For each one, the honest picture — including limitations and caveats.
What Is Apple Cider Vinegar?
Apple cider vinegar is made through a two-stage fermentation process. First, crushed apples ferment with yeast to produce alcohol (hard cider). Then, acetic acid bacteria convert the alcohol into acetic acid, which gives vinegar its characteristic sharp smell and taste.
“Raw” or “unfiltered” ACV contains the mother — a colony of beneficial bacteria and enzymes that forms during fermentation. You’ll recognize it as the murky, stringy substance at the bottom of the bottle. The mother is often cited as the source of ACV’s health benefits, though research specifically on its health effects is limited.
The main active compound is acetic acid, which is also what makes white vinegar useful as a cleaner. ACV typically contains around 5–6% acetic acid.
Health Uses
1. Blood Sugar Management After Meals
This is the most research-supported health use of ACV. Multiple small studies have shown that consuming vinegar (typically 1–2 tablespoons diluted in water) before or with a meal can moderate the blood sugar response to that meal, particularly for high-carbohydrate foods.
The proposed mechanism: acetic acid may interfere with enzymes that break down starches, slowing the conversion to glucose.
Important caveats: The studies are small and short-term. This effect doesn’t replace dietary changes or medication for people managing diabetes. Anyone on blood sugar medications should talk to their doctor before regular ACV use, as it can amplify the effect of some drugs.
How to use: 1–2 tablespoons diluted in a large glass of water, consumed before or with a meal. Never drink undiluted — more on this below.
2. Digestive Support (for Some People)
ACV is often recommended for bloating and indigestion, and some people do find it helpful. The theory is that its acidity may support stomach acid production, which can aid digestion — particularly protein digestion.
However, this is largely anecdotal. If you have low stomach acid, ACV may help. If you have acid reflux or GERD, it could make things worse (more acid is not helpful when your esophagus is already irritated).
How to use: 1 teaspoon to 1 tablespoon in 8 oz of water, 15–20 minutes before meals. Start small to assess your personal response.
3. Sore Throat Gargle
ACV’s antimicrobial properties (from acetic acid) make it a traditional remedy for sore throats. It’s sometimes used as a gargle at the first sign of throat irritation.
Evidence is mostly traditional and anecdotal, but acetic acid does have documented antimicrobial properties against some bacteria in laboratory settings. Whether this translates to meaningful benefit in a sore throat gargle hasn’t been rigorously studied.
How to use: Mix 1 tablespoon ACV with 8 oz warm water. Gargle for 30 seconds, then spit. Do not swallow. Do not gargle undiluted ACV — it can damage throat tissue.
4. Sunburn Relief
Diluted ACV applied to sunburned skin is a traditional remedy for relief from burning and irritation. Some people find it genuinely soothing. The cool, slightly acidic solution may help restore the skin’s natural pH disrupted by UV exposure.
This is not evidence-based in the clinical sense — no rigorous trials — but it’s low-risk when properly diluted and used on mild sunburn (not severe or blistered burns).
How to use: Mix equal parts cool water and ACV. Apply with a soft cloth to the affected area. Do not use on broken skin or severe burns.
5. Scalp Dandruff and Itch
ACV rinses have a practical rationale for scalp use. The scalp’s natural pH is slightly acidic. Many shampoos are alkaline, which can disrupt this balance and promote the growth of Malassezia fungi (a contributor to dandruff). An acidic ACV rinse may help rebalance pH and reduce fungal growth.
How to use: Mix 2–4 tablespoons ACV in 1–2 cups of water. After shampooing, pour over scalp and hair. Leave for a few minutes, then rinse out. Use once or twice a week, not daily. The vinegar smell dissipates when hair dries.
Skin Uses
6. Toner for Oily or Acne-Prone Skin
ACV’s acidity and antimicrobial properties make it a popular DIY toner. Some people with oily or acne-prone skin find it helpful for balancing oil production and reducing breakouts.
Evidence is limited, but the principle is sound: the acidic environment may help control bacteria and bring overalkaline skin back toward its natural pH.
Important: ACV must be significantly diluted for facial use. The typical recommendation is at most 1 part ACV to 3–4 parts water — and even this concentration can cause irritation or chemical burns with regular use on sensitive skin. Start with a patch test. If you have dry, sensitive, or mature skin, skip this use or proceed with extreme caution.
How to use: 1 tablespoon ACV in ¼ cup water. Apply with a cotton pad after cleansing. Do not leave on overnight if you’re new to it.
7. Foot Odor and Athlete’s Foot
Acetic acid creates an environment that’s inhospitable to many bacteria and fungi. ACV foot soaks are a traditional remedy for foot odor and mild cases of athlete’s foot.
How to use: Add 1 cup of ACV to a basin of warm water. Soak feet for 15–20 minutes, 2–3 times per week. Dry feet thoroughly afterward — moisture encourages fungal growth. For persistent athlete’s foot, an over-the-counter antifungal is more reliable.
8. Underarm Odor Alternative
Some people use diluted ACV as a natural deodorant alternative. It works not by blocking sweat (antiperspirant) but by creating an acidic pH environment that inhibits odor-causing bacteria.
It doesn’t last as long as conventional deodorant and isn’t effective for heavy sweating, but for mild use it can work.
How to use: Dilute 1 part ACV in 1 part water. Apply with a cotton ball. Let dry completely before dressing.
Hair Uses
9. Hair Rinse for Shine and Smoothness
After shampooing, a diluted ACV rinse can help close the hair cuticle (which opens during washing), reducing frizz and adding shine. This effect is well-understood chemically — the acidic rinse neutralizes alkaline residue from shampoo.
How to use: 2 tablespoons ACV in 1–2 cups water. Pour through hair after the final shampoo rinse. Leave 2–3 minutes, then rinse. Works particularly well for color-treated hair or hair washed with alkaline shampoos.
10. Remove Product Buildup
Over time, styling products, dry shampoo, and hard water minerals can leave buildup on the scalp and hair shaft. ACV’s acidity helps break down this buildup.
How to use: Same as the hair rinse above. For significant buildup, let sit for 5 minutes before rinsing.
Household Cleaning Uses
11. All-Purpose Cleaner
ACV diluted with water is an effective all-purpose cleaner for countertops, glass, and general surfaces. The acetic acid cuts through grease, kills some bacteria, and leaves surfaces clean without chemical residue.
Recipe: Mix equal parts ACV and water in a spray bottle. Add 10–15 drops of essential oil if you want a more pleasant scent. Spray and wipe.
Do not use on: Natural stone surfaces (granite, marble) — the acid etches the stone. Cast iron cookware — it can strip the seasoning. Waxed surfaces.
12. Glass and Mirror Cleaner
Diluted ACV cuts through fingerprints and smudges on glass without streaking. It’s particularly effective compared to paper towels — use a microfiber cloth for streak-free results.
Recipe: ½ cup ACV, ½ cup water, 1 cup rubbing alcohol (the alcohol helps it evaporate faster, reducing streaks). Spray and wipe with a microfiber cloth.
13. Fabric Softener Alternative
Adding ½ cup of white vinegar or ACV to the rinse cycle serves as a fabric softener — it breaks down detergent residue, which is what makes clothes feel stiff. It’s also useful for removing detergent buildup from clothes over time.
ACV won’t leave a vinegar smell on clothes after they dry (the acetic acid evaporates in the wash). However, don’t add it at the same time as bleach.
14. Remove Hard Water Deposits
Hard water leaves mineral deposits (calcium and magnesium carbonate) on faucets, showerheads, and appliances. Acetic acid dissolves these deposits effectively.
For faucets: Soak a cloth in undiluted white vinegar (ACV also works), wrap around the faucet, and leave for an hour. The deposits should wipe off.
For showerheads: Fill a plastic bag with vinegar, secure it over the showerhead with a rubber band so the head is submerged, and leave overnight. Run the shower to flush.
15. Fruit and Vegetable Wash
A diluted ACV rinse can help remove surface pesticide residue and bacteria from produce. Research on this is limited, but a vinegar soak is more effective than water alone for reducing some surface contaminants.
How to use: Add 2–3 tablespoons ACV to a bowl of water. Submerge produce for 1–2 minutes, swish, then rinse thoroughly with clean water. The vinegar smell won’t linger on properly rinsed produce.
Important Safety Notes
Always dilute. Undiluted ACV is acidic enough (around pH 2–3) to damage tooth enamel, irritate the esophagus, and burn skin. Every use listed above requires dilution.
Protect your teeth. If you’re drinking ACV regularly, use a straw and rinse your mouth with water afterward. Don’t brush your teeth immediately after — wait at least 30 minutes to avoid brushing already-softened enamel.
Medications. ACV can interact with diuretics, insulin, and digoxin. If you take any of these, talk to your doctor before regular use.
Start small. Begin with lower concentrations and amounts than you think you need. Your body (and surfaces) respond differently than others’, and you can always increase.
Apple cider vinegar is useful but not miraculous. Its best-supported applications are practical and specific. Used properly and with reasonable expectations, it earns its place in both the medicine cabinet and the cleaning supplies.