Source Naturals, Acetyl L-Carnitine & Alpha-Lipoic Acid, 650 mg, 60 Tablets

The bottle has no expiry date on it which is strange for supplement.

I am taking this supplement for my brain. I am told there is great evidence of these two substances helping our mitochondria. This was told me by a biochemist. I will try and see.

I have started and stopped this supplement a couple of times. Every time I start it, I am amazed at how great I feel after about two weeks of consistent use. Better sleep, more energy, sharper focus and concentration. Almost too good to be true. The worrisome thing -- and the reason I can't give it five stars -- is that my blood pressure goes way up about an hour or so after I take the first dose in the morning. I don't know if it's this supplement, but I've read that Acetyl L-Carnitine can raise blood pressure in some people. This is the only thing I've added to my medical routine recently. My blood pressure is usually under control and borderline high. I take a moderate dose of Propranolol for my blood pressure. So the jury is still out on the blood pressure issue here. My experience with this supplement may be totally unrelated, but I need to share this for others who might have tendency toward high BP.

Absolutely best for muscle gramps.

I was a very sharp cookie for many years, and menopausal brain fog took away my focus, memory and concentration. I could barely do my job. I started taking these, and honestly, I could feel the improvement with the first tab. Warning: do not take at nighttime because the energy component will also cause insomnia. Besides thinking more clearly, I feel like I have a little more energy and a little more upbeat, too, but the main benefit is the brain sharpness. Read on internet that it's good to take just a few times a week and take off one week a month. I haven't done that yet. Been taking for several weeks now and I feel like I did mentally when I was 35 (20 years ago).

I switch to this product after having bought the Spring Valley one. At first glance it seems more expensive but when you read the serving size, Spring Valley is two tablets while this one is one tablet. Also it is closer to the dosage I want and comes in one sturdy tablet and a light tight container.