They’re typically offered for newborns through toddlers, with suggested ages and size names commonly shown as 0+ months, 6+ months and 18+ months (often labeled Size 1, Size 2 and Size 3).
The available pacifier nipples are either silicone or natural rubber latex.
Many options are labeled BPA-free and phthalate-free, some list PVC-free as well, and at least one option cites third-party certifications and endorsements.
Several pacifiers include air holes or vented shields to allow the skin to breathe, and some shields are curved away from delicate skin to reduce moisture build-up.
Product details recommend discarding or replacing natural rubber pacifiers every 4–6 weeks to maintain hygiene and to check for material wear.