Scientists think that when there’s too much damage from natural body chemicals (oxidative stress) and not enough protection from helpful antioxidants, it might cause hair to turn gray earlier than normal.

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Evidence from Studies

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The possibilities of correction of premature greying of hair and involutive hair changes

Narrative Review

The study says that when there’s too much damage from free radicals and not enough antioxidants in the hair follicles, hair turns gray early — which is exactly what the claim says.

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Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

The possibilities of correction of premature greying of hair and involutive hair changes

Score: 1

DOI: 10.33667/2078-5631-2024-9-7-11

Similar Assertions

Some people get gray hair early because of things like their genes, stress in their body, smoking, or not having enough of certain vitamins and minerals like iron or copper.

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People who go gray too early might have low levels of copper, iron, or vitamin B12—these nutrients might help keep hair its natural color.

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People from different ethnic backgrounds start going grey at different ages — if you're Caucasian, going grey before 20 is considered early; for Asians, before 25; and for Africans, before 30.

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Kids who start getting gray hair earlier than normal are more likely to be missing important vitamins and minerals like B12, iron, and zinc compared to other kids.

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People who start going gray earlier than most tend to have less vitamin B12 in their blood and are more likely to be deficient in it than others their age.

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