A substance, treatment, or product claimed to slow down, prevent, or reverse the visible signs of aging.
From 'anti-' (against) + 'age' (from Latin 'aetas') + '-er' (agent noun suffix), formed in cosmetics and wellness marketing (20th-21st centuries).
The global antiager industry is worth billions, but interestingly, the most effective antiagers are the boring ones—sleep, sun protection, and not smoking actually work better than the expensive creams with exotic names.
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