Optilube Sterile Lubricating Jelly Not all lubricating gels are the same. With OptiLube, we've developed a lubricant gel to suit most clinical procedures. By listening to clinicians, the specialists in our UK laboratories have fine-tuned the formulation and perfected the viscosity to create a class IIa sterile lubricating jelly with a range of benefits: Features: - Water soluble and pH balancedm - Adheres well to gloves and instruments - Won't damage rubber or metal equipment