This is Dr. Bonilla, experienced in Internal Medicine, Pulmonary and Critical Care.
I understand your concerns. Kavinace is a non-FDA regulated substance. There is no research involving treatment of myoclonus hypnagogia. It's usually used over the counter to treat insomnia. Please rate my answer. Let me know i f you have any other questions.
Kavinace has no real good history of use with insomnia.
The main ingredients are taurine and GABA
If you are deficient in these, then it can help with various problems.
You are pursuing what is essentially functional medicine, which you can not do on your own, or over the internet.
Find a doctor, such as myself, trained in this.
A good list is here
please click a positive rating.
Find Dr. Thomas anytime for correct and comprehensive answers.