Leave onion juice on your scalp and hair for 30 minutes to an hour. While some individuals leave it on overnight, caution is advised due to the potential for scalp irritation.
Understanding Onion Juice Application Time
The optimal application time for onion juice on hair is generally between 30 minutes and one hour. This duration allows the beneficial compounds in the onion juice to penetrate the scalp and potentially stimulate hair follicles.
Several sources confirm this recommended timeframe:
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Multiple online articles and forums: Numerous online resources, including articles on websites like Healthline and Medical News Today, as well as discussions on platforms like Reddit and Quora, suggest a 30-minute to one-hour application period for onion juice. These sources consistently emphasize the importance of not leaving the juice on for excessively long periods.
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Research studies: A study cited in several sources indicates that hair growth was observed after just two weeks of applying onion juice twice daily. While the study doesn't specify the application duration per session, the consistent recommendation of 30 minutes to an hour aligns with a practical and effective approach.
Important Considerations
- Scalp Sensitivity: If you have sensitive skin, start with a shorter application time (e.g., 15-20 minutes) to check for any adverse reactions.
- Smell: Onion juice has a strong odor. Using a mild shampoo to wash it out thoroughly can help minimize the smell.
- Consistency: Consistency is key. Regular application is more likely to yield noticeable results than infrequent use.
