From the Manufacturer:
Sinol's Headache formula WORKS!! By using our Medication you experience fast Headache and Migraine relief. Our medication works by desensitizing your nerve endings and helping to dilate your spasming blood vessels, and by using a nasal spray you get the fastest possible deliver right to the source of your headache. Best of all it is available without a prescription and works better than most prescription headache remedies. With the growing list of retailers, doctors and return customers we know our product works. Find out for yourself. Try it today!