100-day money-back guarantee · Free U.S. shipping on orders over $99 · Save up to 38%
Natural Weight Support That Starts With Fewer Cravings
GLPerfect pairs bioavailable berberine and green tea EGCG, bound to our patent-pending carrier, with 260 mg of alpha lipoic acid. It helps curb sugar cravings and supports satiety, a healthy metabolism, and healthy blood sugar levels already within the normal range.
100-day money-back guarantee · Free U.S. shipping on orders over $99
Mara Labs As Seen On
Who made it
Built by a scientist and a physician to match your effort
The scientist behind the formula
John Gildea, PhD
Co-founder, Mara Labs
“You wish that our weight matched our effort. But in many cases, it does not. I’m excited about the GLPerfect formulation because it evens the scales in matching one’s effort with something that supports your weight goals.”John Gildea, PhD
GLPerfect was formulated by Mara Labs co-founders John Gildea, PhD and Martin Katz, MD, and is made under one roof in Charlottesville, Virginia.
The problem
Great Ingredients Only Help If They Get In
Berberine and EGCG, the key compound in green tea, are two of the most studied plant compounds for daily metabolic support.
But there is a catch that most labels do not mention.
Both are hard for the body to absorb.
Much of what you swallow never makes it through the gut barrier, so most supplements answer with bigger and bigger doses. GLPerfect takes a different path: it helps more of these compounds get through, so a smaller dose can pull its weight.
Plant Protein + Sea Carbohydrate
Our patent-pending technology binds a plant-based protein (hemp) to a sea-based carbohydrate (alginate).
That creates the BerbElite® and Green Tea Extract complexes inside every GLPerfect capsule, designed to support absorption through the gut barrier.
How GLPerfect is different
Most formulas add more powder.
More of the same compound, down the same crowded path.
GLPerfect works on the absorption step.
Berberine and EGCG ride on our carrier complexes to help them pass the gut barrier.
Three ingredients, one simple routine.
Berberine, EGCG and alpha lipoic acid together, two capsules a day with meals.
GLPerfect has not been compared to other berberine or green tea supplements in head-to-head clinical trials. This section describes formula design and mechanism.
What is inside
Three Ingredients, Real Doses
Per 2-capsule serving. 30 servings per bottle.
30 mg
Bioavailable Berberine HCl
A plant compound with a long history in Ayurvedic tradition. Studied for its role in AMPK, the cell’s energy sensor, in healthy glucose metabolism, and in a balanced gut microbiome.
50 mg
Bioavailable EGCG
The main catechin in organic green tea extract. Studied for its role in thermogenesis, the body’s heat production, and in appetite-related hormones such as ghrelin.
260 mg
Alpha Lipoic Acid
An antioxidant your body makes on its own. It plays a role in mitochondrial energy production, helping cells turn glucose into energy.
Supplement Facts
Other ingredients: vegan caps (cellulose derivative). Suggested use: two capsules per day, one with your first meal and one with your last meal.
What it supports
Four Ways GLPerfect Supports You
Supports Satiety and Fewer Cravings
GLPerfect helps curb sugar cravings and supports that satisfied feeling after a meal. Berberine and EGCG have both been studied for their roles in appetite-related signaling.
Supports a Healthy Metabolism
Berberine has been studied for its role in AMPK, the cell’s energy sensor. Alpha lipoic acid helps cells turn glucose into energy, and EGCG has been studied for its role in thermogenesis.
Supports Healthy Blood Sugar Levels
Berberine and alpha lipoic acid have both been studied for supporting healthy insulin sensitivity and glucose metabolism already within the normal range.
Supports Healthy Weight Management
Fewer cravings and steadier days make healthy habits easier to keep. GLPerfect is built to support your effort, alongside sensible eating and regular movement.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Your first 100 days
What to Expect, Week by Week
- Day 1
Start the routine
Two capsules a day: one with your first meal, one with your last.
- Weeks 1 to 2
Check in on cravings
Notice snacking between meals and sugar cravings. Some customers tell us this is when they first notice a difference. For others it takes longer.
- Week 4
Finish bottle one
Stay consistent. GLPerfect is a support, not a shortcut, so pair it with the eating and movement habits that fit your goals.
- Day 100
Your guarantee window
Not right for you? Tell us within 100 days of your most recent order and we will refund you.
Individual results vary.
What our community says
What GLPerfect Customers Say
Customer testimonials reflect individual experiences and do not guarantee specific results. Results may vary.
“While I haven’t yet seen the scale move, like other reviewers noted I am seeing a marked difference in hunger and the ‘food noise’ that had been ramping up the past few months. I am able to eat a meal and not think of snacking after...”Car M. ✓ Verified Buyer
“I have tried many other berberine supplements... but this supplement specifically with the additional ingredients has completely quieted the food noise and cravings...”Isabella P. ✓ Verified Buyer
“Yes, GLPerfect has been amazing for curbing my hunger. But more important, it’s curbed my cravings! I have some of my favorite snack foods in the house and... haven’t had the urge to eat even one chip since I started taking it.”Jenny T. ✓ Verified Buyer
“After almost 3 months of using GLPerfect... the food noise I didn’t even know I had is completely gone. I eat less overall, feel satiated much more quickly, barely ever snack... Very impressed with this product!”Rebecca T. ✓ Verified Buyer
“I have definitely wanted to eat three meals a day, but I have not found myself wanting any snacks... between meals. The no snacking between meals has been crazy to see the desire gone.”Eric K. ✓ Verified Buyer
“I was already taking the three ingredients in GLPerfect, so having them together in one capsule from a brand I trust was a no-brainer.”Amanda T. Customer
Reviews from mara-labs.com and Mara Labs customers, shortened for length where marked (...). Individual results may vary.
Choose your supply
Start Your GLPerfect Routine
Subscribe and save up to 38%, or buy once. Orders over $99 ship free in the U.S.
1 Bottle
1-month supply
$89.99
$64.79
$64.79 per bottle · plus shipping
Save 28%Add to CartShips every 30 days. Renews at $64.79 until you cancel. Skip or cancel anytime.
3 Bottles
3-month supply
$269.97
$172.77
$57.59 per bottle · free U.S. shipping
Save 36%Add to CartShips every 90 days. Renews at $172.77 until you cancel. Skip or cancel anytime.
6 Bottles
6-month supply
$539.94
$334.74
$55.79 per bottle · free U.S. shipping
Save 38%Add to CartShips every 180 days. Renews at $334.74 until you cancel. Skip or cancel anytime.
1 Bottle
1-month supply
$89.99
$64.79
$64.79 per bottle · plus shipping
Save 28%Add to CartShips every 30 days. Renews at $64.79 until you cancel. Skip or cancel anytime.
2 Bottles
2-month supply
$179.98
$115.18
$57.59 per bottle · free U.S. shipping
Save 36%Add to CartShips every 60 days. Renews at $115.18 until you cancel. Skip or cancel anytime.
3 Bottles
3-month supply
$269.97
$167.37
$55.79 per bottle · free U.S. shipping
Save 38%Add to CartShips every 90 days. Renews at $167.37 until you cancel. Skip or cancel anytime.
Free U.S. shipping applies to orders over $99, United States only, excluding Hawaii and Alaska. Prices are set at checkout from your cart.
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100-Day, 100% Money-Back Guarantee
Order with confidence. We back GLPerfect with a 100-day, 100% satisfaction guarantee.
If you decide for any reason that it is not right for you, tell us within 100 days of your most recent order and we will refund you. We will not even ask why.
How it works on multi-bottle orders: your guarantee covers a full refund on one bottle even if it is opened. Any additional bottles are refundable when returned unopened within the same 100 days. We can send you a USPS return label, and a $6.99 fee is deducted from the refund total. Original shipping costs are not refundable.
Subscription orders follow our refund policy.
Good to know
Questions About GLPerfect
What is GLPerfect?
GLPerfect is a natural weight support supplement from Mara Labs. It combines bioavailable berberine HCl and EGCG from organic green tea extract, each bound to our patent-pending carrier, with alpha lipoic acid.
What are the benefits of GLPerfect?
GLPerfect helps curb sugar cravings and supports healthy blood sugar levels already within the normal range. It supports:
- Satiety
- Healthy metabolism
- Healthy weight management
What is in your novel organic carrier molecule?
Our patent-pending technology binds a plant-based protein (hemp) to a sea-based carbohydrate (alginate). This creates the BerbElite® and Green Tea Extract complexes that allow for superior absorption through the gut barrier and, therefore, great effectiveness.
What makes GLPerfect different from other weight support supplements?
The fat-soluble molecules in GLPerfect, berberine and EGCG (from green tea extract), pass through the gut barrier in amounts that make a difference in one’s biology and, therefore, increase their beneficial effects.
How do I take it, and how long does a bottle last?
We recommend two capsules per day: one with your first meal and one with your last meal. Each bottle has 60 capsules, a 30-day supply.
Can I stop taking BerbElite if I start taking GLPerfect?
Both BerbElite® and GLPerfect have bioavailable berberine HCl as ingredients. The difference is that BerbElite has BrocElite sulforaphane in it. If you are not taking BrocElite, we recommend staying on BerbElite. If you are taking BrocElite, you do not need to take both BerbElite and GLPerfect.
Is your green tea extract organic?
Yes.
Where is GLPerfect made?
GLPerfect is manufactured in Charlottesville, Virginia. Our capsules come from Canada and Colombia, and our powders are sourced from all around the world. All of our ingredients go through a rigorous selection process and are only ever sourced from transparent and non-GMO sources that are GMP certified and tested for contaminants like glyphosate, pesticides, and heavy metals.
Who can take GLPerfect?
GLPerfect is intended for adults. If you are pregnant or nursing, have a medical condition, or take prescription medications, please consult your healthcare provider before use. Some medications may interact with berberine.
Are there any side effects?
GLPerfect is generally well tolerated. As with any supplement, individual responses vary. Take it with meals and a glass of water, and check with your healthcare provider if you have questions or concerns.
How does the subscription work?
If you choose to subscribe, your order ships on the schedule shown and renews automatically at the price shown until you cancel. You can skip, change or cancel anytime from your account.
Is there a guarantee?
We sincerely hope you enjoy your experience with Mara Labs products. If you are not completely satisfied with your purchase, we offer a 100% money-back guarantee within 100 days from the date of your most recent order placed on our website. Original shipping costs are not refundable.
On orders with multiple bottles of the same product, the guarantee covers one bottle. Additional bottles are refundable when returned unopened within 100 days of purchase. A USPS return label can be provided, and a $6.99 fee is deducted from the refund total.
Is there a number I can call?
Yes. Our customer support team is at 1-810-SPROUTS (810-777-6887), or email info@mara-labs.com.
100 days to decide
Fewer cravings, risk-free
Two capsules a day with meals. Free U.S. shipping on orders over $99. 100 days to change your mind.
Choose My SupplyThese statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
† BerbElite® and Green Tea Extract complexes are bound to Mara Labs’ patent-pending carrier (hemp protein and alginate).
GLPerfect is a dietary supplement, not a medication. Results may vary and individual results are not guaranteed. For best results, use alongside sensible eating and regular movement.
Customer testimonials reflect individual experiences and do not guarantee specific results.
Please consult your healthcare provider before beginning any new supplement, especially if you are pregnant, nursing, taking medication, or managing a health condition.
Free U.S. shipping applies to United States orders over $99, excluding Hawaii and Alaska.