Do ice rollers actually work for face puffiness?

Yes, but temporarily. Across skincare-community threads on r/IndianSkincareAddicts, r/SkincareAddictionLux and r/30PlusSkinCare, the consistent view is that cold causes vasoconstriction which visibly reduces morning puffiness and under-eye swelling for a few hours, but the effect is not long-lasting and does not change the underlying skin. Reviewers also report secondary benefits like soothing redness, easing migraines, and feeling refreshing after a workout.