Yep, its unabashedly
homeopathic.
Five "active" ingredients and the most concentrated is 1 part in a million while the most dilute (and therefore most powerful) is 1 part in 1,000,000,000,000,000,000,000,000,000,000.
Also notice that nowhere on their website do they mention what HeadOn treats. Just that it is safe to use. In fact, it is "one of the safest medications available on the market today."
Since you don't even ingest it, I assume this is a reference to the fact that unlike most other homeopathic remedies it doesn't even pose a small chocking hazard.