Evidence supporting the use of: Fatty Acid (unspecified)
For the body system: Hair

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Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Fatty acids, particularly essential fatty acids such as omega-3 and omega-6, have significant scientific backing for their role in supporting hair health. Multiple studies have demonstrated that these nutrients are critical components of cell membranes in the scalp and hair follicles. Deficiencies in essential fatty acids have been linked with symptoms such as dry, brittle hair and even hair loss. Clinical trials and observational studies have shown that supplementation with omega-3 and omega-6 fatty acids can help improve hair density, reduce hair loss, and increase hair diameter in some populations. The mechanism is thought to involve anti-inflammatory properties, improved circulation to the scalp, and better hydration and integrity of the hair shaft. While most research focuses on specific fatty acids rather than the broad category of “unspecified” fatty acids, the overall role of essential dietary lipids in hair maintenance is well-established. However, the effect size may vary based on the type of fatty acid, baseline nutritional status, and the presence of other underlying conditions. Thus, while not all fatty acids are equally beneficial, there is a solid scientific rationale for the use of essential fatty acids in supporting the hair body system.

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