Legit can mean the seller is real, the product matches its label, or the refund is honored, and each has its own check.
Confirm the checkout is the official store, compare the bottle you receive with the label, and read the refund terms before paying. Keep the order email.
It describes the transaction, not the result. The page shows Made in the USA and GMP Certified claims, which are reassurance about process rather than proof of effect.