A mustache grows during puberty due to changes in androgen hormones and hair follicles on the face that respond to the hormone testosterone.

A mustache grows during puberty due to changes in androgen hormones and hair follicles on the face that respond to the hormone testosterone.

Photo by titiana171016

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Stock photo: A mustache grows during puberty due to changes in androgen hormones and hair follicles on the face that respond to the hormone testosterone. was taken by titiana171016 .

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