How do you use onion juice for hair?

Many people have developed simple instructional home treatments to apply onion juice to is onions good for hair their hair. Some people may avoid using onion juice for their hair due to its strong smell. For this reason, some have suggested simple recipes to help curb the onion smell. Try this one if you are curious:

Combine 3 tsp. onion juice with 2 tsp. lemon juice.
Apply mixture to hair and scalp as evenly as possible.
Leave on hair and scalp for 30 minutes.
Rinse and use a mild shampoo to reduce any onion smells.
What should I know before using onion juice?
Using onion juice for hair is mostly safe. If you have an allergy to onions, you shouldn’t use onion juice on your hair.

Even among those who are not allergic, onions can be quite caustic to the skin. Side effects may include redness and itching, depending on how potent a concoction you make. Mixing onion juice with an emollient like aloe vera or coconut oil may prevent this.

Don’t use onion juice as a cure for alopecia or other hair loss issues. For some conditions — such as alopecia — the only successful cure is a hair transplant. The same applies to baldness.

Also, certain medications can increase a person’s sensitivity to onion juice on the skin (such as aspirin). If you’re concerned about interactions, do a skin test first, or talk to your doctor.