Yes and no
Antioxidants help biochemical reactions run smoothly in the body (co-factors), some may be vitamins or minerals
, some are different.
Most will behave as either anti-ox or pro-ox, depending on the chem circumstance. Certain amount is needed, more may not confer any extra benefit. No clinical data to support claims that any product (juice, fruit, "miracle") actually cheats death, prolongs life.