Can ACTN3 help with skin aging?

The question of whether ACTN3 can help with skin aging currently lacks a solid scientific basis. ACTN3 is a gene primarily known for encoding alpha-actinin-3 in fast-twitch muscle fibers and is associated with sprint and power performance. There are no published studies demonstrating a direct or indirect effect of ACTN3 variants on skin aging, collagen metabolism, or skin elasticity. Claims that a DNA test for ACTN3 can influence skin aging should be regarded as marketing. Even in the fields of nutrigenetics or longevity, ACTN3 is not an established biomarker for skin health. Consumers should be skeptical when tests or products imply such connections without referencing robust evidence. Skin aging is driven by UV exposure, lifestyle, hormones, and genetics (e.g., MC1R, collagen genes) – not by ACTN3.