Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Argan nut oil is primarily used to support hair loss or thinning based on both traditional use and limited scientific evidence. Traditionally, argan oil has been used in Morocco for centuries as a cosmetic oil to nourish hair and improve its appearance, which includes claims of promoting hair growth and reducing hair loss. However, scientific evidence directly supporting argan oil's effectiveness for hair loss or thinning is limited and not robust.

A few small studies and laboratory investigations have shown that argan oil contains beneficial fatty acids (such as oleic and linoleic acid), antioxidants (notably vitamin E), and other phytochemicals that may help moisturize the scalp, reduce inflammation, and improve hair elasticity and shine. One small clinical study (J Cosmet Dermatol, 2013) found that a shampoo containing argan oil improved hair elasticity and hydration. However, there is a lack of high-quality, peer-reviewed clinical trials specifically demonstrating that argan oil prevents hair loss or stimulates new hair growth in humans.

Therefore, while the use of argan oil is supported by traditional practices and has plausible mechanisms (such as improving scalp health and reducing breakage), strong scientific validation for its effectiveness in treating true hair loss or thinning is lacking. The evidence currently rates at a 2 out of 5, reflecting suggestive but inconclusive scientific support.

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