First. The inner spring of the insulin syringe is precision machined to ensure that the drug injection site is completely subcutaneous. The purchased counterfeit and shoddy products cannot guarantee that the drug is completely injected into the subcutaneous tissue. Taking insulin injection as an example, if the drug liquid is injected into the muscle layer, the absorption rate of insulin is accelerated, the blood sugar drops rapidly, and the human body is prone to dizziness, headache, tremor, and rapid heartbeat. Other symptoms of hypoglycemia, in the absence of timely treatment, some patients with hypoglycemia will experience coma or even death.

Second. The ampoules of the insulin injection system are disposable medical consumables, made of Makrolon®, a German Bayer medical-grade polymer plastic, which has passed various biocompatibility tests. The purchased counterfeit and shoddy products may cause the following situations during the injection process:
1. Pain is obvious
2. Injection site edema, hematoma
3. Injecting dust into the body under high pressure
4. Chemical reaction between liquid and ampoule
5. Adverse reactions occur when ampoules come into contact with human skin