I found out about Passion flower back in the days when I was the general manager of a busy restaurant in NYC, when the speed of my life was going at 200 miles per hour! Passion flower really helped in keeping my anxiety down and restored a sense of calmness (which is what everyone should be striving for in life). I usually buy Passion flower from this trusted brand, Paradise Herbs, and I find the quality of their ingredients excellent. Passion flower supposedly has many other benefits, look it up on the internet! It is one of my favorite "magic" herbs.
Has a potent feel of passion flower in each capsule. I take this twice a day and it helps me no matter what time I take it. Can be sedative but I still enjoy it. It's great for the spirit and the body. Always works no matter what time it's taken.
This was supposed to make me feel calmer so that I can fall asleep. It did not. Instead, I found myself waking up around 3-5 am anytime I took it. Could not fall back asleep.
Maybe it's a great supplement with quality ingredients but in my case not something I would touch again by itself. There are mixes with tiny amounts of this that I do fine with.