The 90-Day Guarantee: Opened Bottles Covered, Explained

This formula's own materials state something worth highlighting on its own: the guarantee covers opened bottles, not just unused ones.

What this specific detail actually means

Prosta Defender's 90-day money-back guarantee covers opened and unopened bottles — a real, meaningful difference from a guarantee requiring unused product, and a fair policy given this is meant to be taken daily to judge.

What to actually confirm before ordering

Contact customer support within the 90-day window if it's not for you, and confirm the exact return process directly before you need it, rather than assuming based on the summary alone.