"I was doing some research and ended up finding out about pterostilbene and the very interesting results it has not only with anti oxident effect and much more bioavailable than resveratrol, but other metabolic effects as well.
Check out your favorite, peer reviewed, scientific study sites for more details.

As I mentioned in my other Double Wood reviews, they third-party audit the product for purity and potency. I've not yet had any noticable short term side effects from this or other DW items.
If you have sensitivities or otherwise unsure seek the advice of a trusted practitioner or see if a librarian will help with research."

"Like many, before I decide adding a supplement to my diet, I first look into all the available research I can find, and if it has promise, then I add it to my diet. What I don't do, is wait for completely settled science, because that often takes years and I don't have years to wait to find out if something beneficial I could've added to my diet works. So once Ive personally satisfied myself there's enough evidence to consider adding a supplement to my diet, and I can afford it, then that's enough for me. In my view Pterostilbene is a must addition to a daily supplemental regiment for a number of reasons. Pterostilbene shares many of the benefits of Resveratrol, but it also like Resveratrol, has its own unique benefits. Pterostilbene is a double-methylated version of Reseveratrol, but it has a higher bioavailable rating which means you can achieve beneficial results at lower dosages. I decided to take Pterostilbene for all of its beneficial properties such as cancer prevention, increased insulin sensitivity (I have type 2 diabetes), maintaining a healthy heart, and most importantly as a baby-boomer, to help maintain cognitive function in my later years, and thus far it appears to be working. I've especially noticed some improvement in my A1C levels which at one point had reached 7. A few years ago I decided to stop taking supplements to see if they were really making a difference, and after several months I began to notice a decline in a number of areas, but especially in my A1C levels. So I began taking supplements again and not only do I feel mentally sharper but my A1C levels are once again in a healthy normal range. So yes supplements make a difference!

According to the National Center for Biotechnology Information, "Low-dose pterostilbene, but not resveratrol, is a potent neuromodulator in aging and Alzheimer's disease."

After making several comparisons of the different Pterostilbene distributors, I decided to go with Double Wood Supplements for three reasons, the capsules come in 100 mg doses which I've decided is right for me, it's in a price point that suits my budget, and the reputation of Double Wood Supplements give me confidence that I'm getting what I'm paying for. HLG

I've taken a screenshot of the last A1C test which was 5.6, but my most recent A1C which I don't have to show is 5.2."

"Good product and price, but needs independent testing assurance by USP."