I've been taking 4 capsules per day of the Kyolic 109 for a couple of years now. It definitely helped my BP but didn't "fix it" by itself and it shouldn't be expected to.
Thankfully I have it under control now.
You must make sure that it is fresh and releases juice, when they get dry they are not so tasty and I suspect that their properties go away. When the skin is glued, it means that it is fresh.