🧅 Benefits of Onion Juice

By TheFoodieDad Last updated Jul 14, 2025

Here’s a clear and concise guide covering the benefits, how to make onion juice, and how to use it both internally and externally:

🔹 External Use (Skin & Hair)

Hair Growth & Scalp Health
- Rich in sulfur, onion juice stimulates hair follicles, improves blood circulation, and promotes hair growth
- Helps reduce hair thinning, breakage, and dandruff
Fights Acne & Skin Infections
- Has antibacterial and antifungal properties
- Can help reduce acne, pimples, and minor skin infections
Anti-aging Effects
- Contains antioxidants (like quercetin) which may reduce fine lines and improve skin tone

Boosts Immunity
- Rich in vitamin C, flavonoids, and antioxidants
Improves Heart Health
- Helps reduce blood pressure and cholesterol due to its anti-inflammatory and blood-thinning properties
Supports Digestion
- Aids in gut health by stimulating the production of digestive juices
May Help Manage Blood Sugar
- Certain compounds in onions may help regulate blood glucose levels

⚠️ Note: Internal use should be done in moderation due to the strong flavor and potential for gastric irritation in some people.

Skin Irritation and Allergic Reactions
- Onion juice is highly potent and can cause redness, itching, burning, or rash when applied directly to sensitive skin or scalp
- People with sensitive or allergy-prone skin should always do a patch test before use
Strong Smell and Staining
- The strong, pungent smell of onion juice can be hard to wash out from hair and skin
- It may also temporarily stain fabrics or hair, especially lighter shades
Eye and Respiratory Irritation
- Cutting onions and handling their juice can cause eye watering and irritation
- Inhaling the strong fumes may cause discomfort or coughing, especially for people with respiratory conditions
Digestive Discomfort (When Consumed Internally)
- Drinking raw onion juice can cause stomach upset, gas, bloating, or heartburn, especially in people with sensitive digestive systems or acid reflux
- It may exacerbate conditions like irritable bowel syndrome (IBS) or gastritis
Potential Interaction with Medications
- Onion juice has blood-thinning properties which may interact with anticoagulant or antiplatelet medications
- Consult a healthcare professional if you are on blood-thinners or other medications before consuming onion juice regularly
Not Suitable for Everyone
- Pregnant or breastfeeding women, young children, and individuals with certain health conditions should use caution or avoid onion juice internally unless advised by a doctor

Peel and chop the onions into small pieces
Blend or grate the onions into a pulp
Strain the pulp using a fine sieve, cheesecloth, or clean muslin cloth to extract the juice
Store in a clean glass jar or bottle. It can be refrigerated for up to 3–4 days

⚠️ Patch test before applying to skin or scalp to rule out irritation or allergies.

Mix 1–2 teaspoons of fresh onion juice with warm water or honey to reduce pungency
Drink once a day on an empty stomach or before meals

⚠️ Avoid overconsumption. Start with small amounts (no more than 1 tablespoon/day) and monitor your body’s reaction.

Use	Benefit	How to Apply
Hair	Promotes growth, reduces dandruff	Massage into scalp 2–3x/week
Skin	Fights acne, evens tone	Dab on spots, rinse after 15 min
Internal	Immunity, blood sugar, heart	1–2 tsp juice diluted with water or honey