Reviews
What people say after the first bottle.
Verified customer reviews collected through Judge.me, the experts who use the products, and what Amazon customers wrote. All of it in their own words.

The co-owner
Everybody over 40 should be obsessed about their NAD levels.
Kris Gethin
Co-owner. Daily user since 2019.
Kris Gethin is an investor and co-owner of BioStack Labs and has a financial interest in its products.
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Great Quality Product!
Love it!
Mike Phelps
Verified buyer
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Game Changer
I must have been completely NAD depleted, because I feel like I noticed a change as soon as I started taking this. I'm rounding out month 3 and returning to restock my supply. I take this first thing in the morning and within 10 minutes, I feel the transition from zombie mode to feeling alive and full of vitality. I've taken NAD+ via injection but this is so much easier, plus it's a daily supplement so the effects are felt every day and not just on injection days. I honestly don't know how I ever survived without this stuff. Looking forward to trying the new and improved version as well.
Ann in Virginia (feeling fabulous at 50)
Verified buyer
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Arrived promptly. Have taken every day and awaiting 2nd shipment. I am looking forward to continuous use of this product. 60-90 days will post again.
Walter
Verified buyer
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That youthful boost
My wife (of almost 50 years) and I have been using NAD Regen for about 3-4 months now and it is now a regular daily staple in our routine. It gives us both that youthful boost to our day. I prefer the NAD Regen over the injections I was giving myself. It’s not only easier to take capsules, the Regen Mix spreads out the joy.
Chris Corcoran
Verified buyer
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NAD Regen (AFF)
Kenneth Clenin
Verified buyer
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Great Company, Great Products
I am taking the NAD Regen and loving it!
Tjlkes
Verified buyer
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More Focus, More Energy, Better Days!
NAD Regen has been a great addition to my routine. I’ve experienced increased daytime energy, improved focus, and a reduction in mental fatigue and brain fog. Overall, I feel more mentally refreshed and clear-minded. This is a game changer!
Priscilla Zamora
Verified buyer
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Almost 30 day in
I feel like I can tell that I have more energy and alertness taking Regen but I want to continue for the next 30 days to really be able to verify that these supplements are the reason.
Tim Curington
Verified buyer
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Noticing a difference!
I think I am noticing a different in mental clarity and even energy. Almost through one full bottle, and I plan to continue!
Tyler Kallasy
Verified buyer
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NAD Regen WORKS
Been about a month and I have noticeably more energy already, especially early afternoon. I'm a believer.
Bryan Krahn
Verified buyer
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I started feeling better after only a few days
I started feeling better after only a few days on NAD Regen. Hoping it continues because this is a better option for me than NAD injections
Slaterraider
Verified buyer
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1 year later, I love this stuff!
I have been using NAD Regen for a little over a year now, and my energy levels have been amazing. All other things- diet, training, sleep and work being the same, I have had noticeably more energy and drive and my extra activities as well as physical work everyday have been seemingly effortless. I’m in it for the long haul now!
Drew
Verified buyer
Reviews are verbatim from verified Judge.me submissions. Individual results may vary.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.

The expert
Love the journey this team has gone through to create A+ products.
Dr. Dome
Biological dentist
Received free product from BioStack Labs.
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Great price for quality
Charles
Verified buyer
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Great product
When taking this I never get sick even when around others who are sick.
Susan Schexnayder
Verified buyer
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I love this product.
The benefits are noticeable.Jeffery
Verified buyer
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CELL SHIELD & NAD REGEN
THO, I feel it takes more than 30 days to see any results from a product due to the time a body takes to overturn new cells, yet I have to admit that my feeling of overall well-being has been getting better, and I have only added these 2 products to my LIMITED suppliment regime. A good diet is my first priority, and while I do like my wine with dinner (being my vice of choice). It feels like my body is more resilient, and you may wonder if I will drink MORE WINE rather than 1 to 1.5 glasses; I am actually feeling so good that I am cutting back to just one Glass.
I have good reasons for staying with these products and am GRATEFUL.
YEAH!!! BIO STACK LABS ...Peggy Fenner
Verified buyer
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Excellent product!
Really noticed a positive improvement in my energy and stamina. Feel great!
John Sterbens
Verified buyer
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Newbie
I really haven felt anything yet but that not cuz they aren working or it’s not a good product I have just been to inconsistent on taking them once I’ll be more consistent on taking it I’ll come back a write a difference reviews
Seth Waldner
Verified buyer
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Better Health, Better You
I’ve been taking Cell Shield since Biostack Labs launched. As an 55 year old guy, I must say that I’m in the best health then I’ve ever been. I rarely get sick and just feel better, with more energy to take in the day!
James Nesbitt
Verified buyer
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Great
Can’t wait to stack with the new formulated product
Jonathan
Verified buyer
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Cell shield
Haven’t noticed any difference with the cell shield but I did order more, will give it more time. The Nad Regen needed time before I felt a difference so I’m hoping I will feel something
Rodney Hauer
Verified buyer
Reviews are verbatim from verified Judge.me submissions. Individual results may vary.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.

The coach
Unique formulation that is unmatched in quality.
Dane Palarino
DadbodSculptors
Affiliate partner: earns a commission on purchases made through his links.
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Energy on board
I’ve been taking Glynac+
For nearly 2 years now at 64 it’s great to have energy. I just competed in a triathlon 2 mile run, 13 mile bike (thru hilly countryside not flat) and a 5 mile kayak. I came in fifth overall for the women 😁. The four girls that beat me were all in their 30s. I improved my time from last year by 4 and a half minutes. I will continue to make this a part of my health lifestyle.
BravoMary Kenny
Verified buyer
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Clean Powerful supplements
First time ordering from this brand. I respect their transparency and ethical formulation. I have been taking it for a short time. I have had no sensitivity to this brand. I have felt more energy and better digestion. I look forward to trying more of their products.
Karina Gonzalez
Verified buyer
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I will be a return customer
If I could get all the money I spent on supplements that did nothing back; I’d be fine purchasing BioStack products with it. It’s weird to describe a product with “ you can feel it” Guess I’m weird. I’m good there. This stuff works. Bio hacking “drano”.
David Sharick
Verified buyer
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Amazing
Love the product so much, went back to order a 6 month supply. Highly recommend!
Kristen
Verified buyer
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GlyNAC+
Abigail Hebert
Verified buyer
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Easy to continue
I started to notice last week that I’m not as hungry as usual and I really don’t want junk food very often. Overall my energy and mood are still pretty normal. I’m also taking NAD Regen. I’ll continue to use this product.
Michael Everette
Verified buyer
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GlyNAC+
I have been taking GlyNAC+ for over a year. In combination with other healthspan measures, I feel great. The only bias may be that people who take products like this are very likely also taking other steps regarding longevity and healthspan. But I recommend it to friends and patients.
stephen schmidt
Verified buyer
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Glynac
Not sure if I'm supposed to feel or notice anything. No meaningful review at this time.
Michael Hays
Verified buyer
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I seem to have more energy
Athan Kartsonis
Verified buyer
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Still Determining
I haven’t finished a bottle. Subtle changes but looking to long term results.
Shelley Wilson
Verified buyer
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I havent given it a chance because I hate having to take 6 capsules at a time.
S.S.
Verified buyer
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GlyNAC+
No change, don’t notice any difference in the way I feel or anything else
Rodney Hauer
Verified buyer
Reviews are verbatim from verified Judge.me submissions. Individual results may vary.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.
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GD Aid is good.
I’ve noticed that I do not feel weighted down when I take GDAid before a Carb heavy meal. The sluggish feeling of Carbs is not there after I started taking GDAid.
Jeffery Jordan
Verified buyer
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Great
Justin
Verified buyer
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Unexpected results
Within the first 24 hours of taking GDAid, I felt a difference in my stomach, the bloating was gone with my meals. I had blood work done with a methylation DNA test and again 5 weeks later for a pre op surgery, my HA1C was 5.7 and was down to 5.3. Imagine my surprise!
Mariam Frederick
Verified buyer
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Works Awsome
I really like the way it makes feel. I can eat a lot if carbs before or after training and never feel sluggish. Great product.
Tim Cozart
Verified buyer
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Love it
Pricey but worth the investment since I see results and feel great
Jacky Ardon
Verified buyer
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GDAid
Denise Hinkeldey
Verified buyer
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Product worked in an unexpected way
I bought this product to use on a trip as I knew I’d be eating more than usual, at least for dinners. The surprising thing I noticed was that on my trip I was not waking up at 4am with a cortisol rush, due to low blood sugar despite not having a bedtime snack. At home I always have to have a bedtime snack or I wake up between 3-4 am with low blood sugar and a compensatory cortisol spike. I thought it might just be that I was more relaxed on vacation but I continued to take the GD aid with my evening meal and I have not woken up with the cortisol rush once in the past three weeks. This is an absolutely amazing and unexpected side effect of this supplement. I couldn’t be happier with the results and this is now a staple in my supplement regime.
Maren
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Best pre-workout GDA
I’ve been using GDAid since its launch. I had tested other GDAs on my CGM but nothing came close. I have a carb heavy breakfast before my workout and I find that this helps shuttle the carbs into the muscle for fuel. I have more muscle energy and no crash.
K.G.
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Phenomenal Product
I’ve been taking GdAid religiously for 6 months now and can say it’s a phenomenal product.
As a busy mum of three, I want to avoid things that can slow me down, using GDAid has helped me avoid those “carb crashes” after food as well as not giving me any brain fog, along with no heavy or lethargic feeling often associated with eating higher carb meals.
GDAid is so effective, that when I forget to take it and have a high carb meal I notice it instantly.
Thank you Biostack for creating such a wonderful product.
S.I.
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Top GDA!
Hands down the best GDA out there. Covers all the bases whether used pre-workout or when you want to indulge a little.
Christian Tsentas
Verified buyer
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GDA Supreme
The biostacks team around Adam are putting out the most cutting edge formulas that are right up my alley. Been using GDA religiously ever since it came out twice a day and love it. It’s epic. Cheers, Dr Dome
D.N.
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GDAid............GOOOOOOD
Weirdly, GDAid is a supplement, that I didn't think I needed. The only reason that I tried it was due to being so impressed and using Biostacl's other three products, religiously. Well, I needed it. I do need glucose management, I do. I was looking at my shirtless body today, shaving in the bathroom mirror and after a month or two of GDAid, my muscle tone, abs/core, the problem area, looks great. I am 53 and used to be able to eat anything and everything cuz I was so skinny and wanted to get big and strong. Well, these days, I'm 195, about 6 foot. Feeling great due to all of Bisostack's products. GDAid..........GOOOOOD stuff!!!
Jonathan Peck
Verified buyer
Reviews are verbatim from verified Judge.me submissions. Individual results may vary.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.



