A sales page can say almost anything it wants about a product's positioning. The Supplement Facts label is a different kind of document entirely.
Marketing copy is written to persuade. It often describes a product in broad, aspirational categories — "cognitive wellness blend," "focus support" — without naming a single ingredient or dose.
The Supplement Facts panel is where serving size, ingredient names and (when disclosed) amounts actually live. It's the one part of the packaging that has to match what's really in the bottle.
Before ordering anything, find a way to see the actual label — not just the sales page. If a brand won't show you the label before you buy, that's worth noticing.