Apple cider vinegar (ACV) has become a popular natural ingredient in beauty and personal-care routines. Made by fermenting apple juice, it contains acetic acid and various naturally occurring compounds that may offer benefits for both skin and hair. When properly diluted, it is commonly used as a hair rinse to remove buildup, improve shine and leave hair feeling smoother. For skin, diluted ACV is sometimes used to help cleanse the skin, manage excess oil and provide mild exfoliation.
Despite its popularity as a home remedy, apple cider vinegar is highly acidic and can cause irritation when used incorrectly. It should always be diluted before topical use, and a patch test is recommended. While ACV may complement a healthy skincare and haircare routine, it should not replace proven treatments for persistent skin or scalp concerns.
Apple cider vinegar (ACV) is a fermented liquid made from apples. It contains acetic acid along with small amounts of other organic acids and plant compounds. Because of its acidic nature and antimicrobial properties, ACV has become a popular ingredient in DIY skin and hair-care routines.
However, it is important to remember that scientific evidence for many beauty claims about ACV is limited, and concentrated or undiluted vinegar can irritate or damage the skin and scalp.
Benefits of Apple Cider Vinegar for Skin
1. May Help Control Excess OilApple cider vinegar is acidic and may help cleanse away excess oil from the surface of the skin. People with oily skin sometimes use a highly diluted ACV solution as part of their cleansing routine.
However, excessive use can strip the skin's natural oils and potentially cause dryness or irritation.
2. May Help Keep Skin CleanACV contains acetic acid, which has antimicrobial properties. When properly diluted, it may help reduce some microorganisms on the skin.
It should not, however, be considered a replacement for a gentle cleanser or dermatologist-recommended treatment.
3. May Support Acne-Prone SkinBecause acetic acid can inhibit the growth of certain microorganisms, ACV is sometimes promoted as a natural remedy for acne.
That said, ACV has not been established as a reliable acne treatment, and applying concentrated vinegar to pimples can cause burning, redness and irritation.
4. May Help Remove Dead Skin CellsThe acidic nature of vinegar may provide a mild exfoliating effect. Removing surface buildup can make skin feel smoother.
For regular exfoliation, however, properly formulated skincare products are generally safer and more predictable than homemade ACV preparations.
5. May Improve the Appearance of Dull SkinWhen dead skin cells and surface buildup are removed, skin can temporarily appear fresher and brighter. This is one reason ACV is sometimes included in homemade beauty routines.
The effect should not be confused with permanent skin brightening or pigmentation treatment.
6. May Help With Uneven Skin TextureGentle chemical exfoliation can help improve the appearance of rough or uneven skin texture. Since ACV is acidic, some people experience smoother-feeling skin after using a diluted preparation.
However, the concentration of homemade ACV mixtures is difficult to control, making irritation a concern.
7. Contains Antioxidant-Related Plant CompoundsApple-derived products contain various plant compounds. Depending on the vinegar and how it is produced, ACV may contain small amounts of antioxidant compounds.
These compounds may contribute to overall skin-care benefits, although ACV should not be considered a major antioxidant skincare ingredient.
8. May Help Reduce Skin OdorBecause vinegar has antimicrobial properties, diluted ACV is sometimes used in DIY routines to help manage body odor.
It should never be applied to broken, freshly shaved or irritated skin because it can sting and cause inflammation.
9. May Help Refresh the SkinA properly diluted ACV solution can give the skin a clean and refreshed feeling. This is primarily a cleansing effect rather than a proven long-term skin transformation.
10. May Support the Skin's Natural Acidic EnvironmentHealthy skin naturally has a mildly acidic surface environment, often called the acid mantle. Maintaining this environment is important for the skin barrier.
However, this does not mean that applying vinegar directly to the skin is beneficial. The wrong concentration can disrupt the barrier rather than support it.
Benefits of Apple Cider Vinegar for Hair
11. May Help Remove Product BuildupShampoos, conditioners, oils and styling products can leave residue on the hair and scalp. A diluted ACV rinse may help remove some of this buildup.
This can make hair feel cleaner and lighter.
12. May Make Hair Look ShinierWhen buildup is reduced and the hair surface feels smoother, the hair may appear shinier.
An ACV rinse does not permanently change the structure of the hair, but it may temporarily improve its appearance.
13. May Make Hair Feel SmootherThe acidic nature of ACV may help the hair cuticle lie flatter. A smoother cuticle can make strands feel softer and easier to manage.
This is one of the more commonly reported cosmetic effects of acidic hair rinses.
14. May Help With an Oily ScalpPeople with an oily scalp may find that a diluted ACV rinse provides a refreshing cleansing effect.
However, using it too frequently may dry the scalp and cause irritation, which can make the scalp feel uncomfortable.
15. May Help Reduce Scalp BuildupACV can help loosen some residue and buildup from the scalp. This may be particularly useful for people who frequently use gels, sprays, dry shampoo or other styling products.
It should not be used aggressively to scrub the scalp.
16. May Have Antimicrobial PropertiesAcetic acid has antimicrobial activity against certain microorganisms. This is one reason ACV has traditionally been used in household and personal-care applications.
However, ACV is not a proven treatment for fungal scalp infections or other scalp diseases.
17. May Help With the Appearance of FlakesA diluted rinse may help remove loose flakes and buildup from the scalp, making the scalp look cleaner.
But persistent dandruff usually requires an evidence-based anti-dandruff shampoo rather than vinegar.
18. May Help Reduce Scalp OdorA diluted ACV rinse may help with unpleasant scalp odor by cleansing the scalp and potentially reducing certain odor-producing microorganisms.
If scalp odor is persistent, accompanied by itching, redness or scaling, it is better to identify the underlying cause.
19. May Improve Hair ManageabilitySmoother-feeling hair can be easier to comb and style. An acidic rinse may temporarily improve the feel of the hair, particularly when there is product buildup.
20. May Complement a Healthy Hair-Care RoutineACV can be used occasionally as a rinse, but healthy hair primarily depends on adequate nutrition, gentle handling, appropriate shampooing and conditioning, and minimizing excessive heat and chemical damage.