Saxenda works for weight loss by regulating your hunger and calorie intake. As a glucagon-like peptide 1 (GLP-1) receptor agonist, it lowers hunger stimulation in several areas of the brain, which reduces your food intake. Saxenda also helps your stomach digest food more slowly, which causes feelings of fullness.
1 pen will last you a month. 
About Saxenda ℹ️
https://www.saxenda.com/about-saxenda.html
How to use 💉
https://www.saxenda.com/about-saxenda/how-to-use-the-pen.html
How to inject 💉
https://www.youtube.com/watch?v=iupHA6EQubY
Dosing Schedule ⏱️
https://www.saxenda.com/about-saxenda/dosing-schedule.html