Hi Andrea,
Yes, it is a sublingual spray. The instructions are here on this same product page under the tab Dosage Instructions. Just click on that tab.
We also have more detailed dosage instructions that include how to cycle, etc., over at our HGH-Pro educational site. We send a link to our detailed instructions to every customer in their order invoice.
Detailed Dosage Instructions For Our HGH Products
I hope this has helped. If you have more questions please let me know.
Best Regards,
Lisa Wells, RN