How to Use Onions to Treat Scars

Find out how you can use onions to treat scars. If you have sensitive skin and notice a reaction when applying the onion extract, wash with plenty of cold water and stop the treatment.
How to Use Onions to Treat Scars

Last update: 12 May, 2022

Onions are a great vegetable that is used around the world to season both common and elaborate dishes. In addition, they have many beneficial properties for your health and skin-related problems. In this article, we’ll look at how you can use onions to treat scars, from bothersome stretch marks to surgical scars.

Using onions to treat scars

You can use onions to treat scars effectively since they help regenerate damaged skin. To use it, first, take onion extract and apply it to the scarred areas. This extract helps improve collagen production wherever it is applied and significantly improves the appearance of scars.

The effectiveness of onion extract

Onion extract is very effective on hypertrophic and keloid scarsThese are scars from surgery or an injury that grow excessively. In addition, they usually become very thick and have fibrous tissue. You should see results with the onion extract after about six to eight weeks.

Preparing onion extract

Onions to treat scars chopped onions

To properly prepare onion extract, you’ll need:

  • Cutting board
  • Knife
  • Dish soap
  • Water
  • Ice
  • Thermometer
  • Coffee filters
  • Distilled water
  • Salt
  • 2 medium-sized bowls


First, mix 3 grams of salt with 10 grams of soap. Then, cut the onion in very small, uniform pieces. Put them in one of the bowls. Then, add the salt and soap mixture and stir well.

Put the mixture in a double boiler for about 15 minutes. Then, immediately put it in cold water for five minutes while stirring continuously.

Blend for five seconds and then strain it using a coffee filter into the second bowl. The strained liquid is your onion extract.

For best results, onion extract should be applied to the scarred areas once a day, whether on its own or mixed with a moisturizing cream or the cleanser you use regularly.

Finally, be careful when using this product. If you have very sensitive skin, your skin may become irritated and develop contact dermatitis. Therefore, pay attention to your skin’s reactions and if you notice it getting red or something similar, stop the treatment immediately. If needed, see a dermatologist as soon as possible.

All cited sources were thoroughly reviewed by our team to ensure their quality, reliability, currency, and validity. The bibliography of this article was considered reliable and of academic or scientific accuracy.

This text is provided for informational purposes only and does not replace consultation with a professional. If in doubt, consult your specialist.