Evidence supporting the use of: Green onion
For the health condition: Hair Care (general)

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Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Green onion (Allium fistulosum) has a history of traditional use in various cultures for promoting hair health, but there is minimal scientific validation for this practice. Traditional remedies, especially in some Asian cultures, have involved the topical application of green onion juice or extracts to the scalp. The rationale is often attributed to the presence of sulfur-containing compounds, which are believed to nourish hair follicles, strengthen hair, and possibly support hair growth. These beliefs are likely extrapolated from the more widely documented use of onions (Allium cepa) for hair care in folk medicine.

However, scientific studies specifically investigating green onion for hair care are lacking. Most available research on Allium species and hair health focuses on common onion, not green onion, and even those studies are limited and preliminary. There is no robust clinical evidence to support the effectiveness of green onion for preventing hair loss, stimulating hair growth, or improving scalp health. As such, the use of green onion in hair care remains primarily rooted in tradition and anecdotal reports rather than validated scientific evidence.

In summary, while green onion is sometimes used in traditional remedies for general hair care, there is little to no direct scientific support for its efficacy in this context.

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