Ever wonder why glass cupping cups feel different from plastic ones?
We made a quick comparison.
Same vacuum pressure. Same spot. Same time.
The plastic cup started losing suction after a few minutes. The glass cup? Held tight the whole time.
Reason: Glass rims are smoother and seal better against your skin. Plastic rims are thinner and more likely to leak air.
That's why RIBON MED sticks with high‑borosilicate glass - safe, strong, and built to last.
