Please note: This review reflects information we gathered on the date it was researched and may now be out of date. Providers frequently change their pricing, plans, medications, and policies. Any ratings, reviews, and customer feedback are gathered from publicly available online sources and may have since changed or no longer be accurate. Always do your own research and confirm the latest details directly with the provider before making any decision.
Transparent Labs Review: Best Labels We’ve Checked, Skip the Fat Burner
A brand named after transparency is an easy target, so we counted: 322 published dose figures, 76 references to third-party testing, batch results published in the site footer, and exactly one proprietary blend — which names both its botanicals and doses them. Buy the 28g whey isolate. Do not buy the fat burner, for reasons specific to the medication you are taking.
Our Verdict
Transparent Labs · transparentlabs.com · $10–$250, median $49.99
The transparency is real, and it is the best we have found
322 milligram dose figures across 73 products, 76 mentions of third-party testing, 40 of Informed Choice certification, 12 of certificates of analysis, and copy stating every batch is third-party tested with results published in the site footer. We have spent months reviewing brands that publish no doses whatsoever. This one publishes almost nothing else.
Even the one proprietary blend is disclosed
The phrase appears once in the entire catalogue, for Relora® — and the listing names it as a blend of Magnolia officinalis and Phellodendron amurense and gives the dose as 250 mg. A brand that discloses the composition and quantity of its single proprietary ingredient is not using the mechanism to hide anything.
Buy this: 28g of grass-fed whey isolate
$59.99, with a $15.99 five-serving pack to try first. Complete protein, rich in leucine, which is the amino acid that drives muscle protein synthesis — the correct tool for the one nutritional job that matters most during rapid weight loss, and the direct opposite of the collagen products marketed at this audience.
Not this: the $54.99 fat burner
Sold on boosting metabolic rate, reducing hunger and cravings, and providing energy. You are already taking a drug that suppresses appetite far more effectively than green tea extract and capsaicinoids. Worse, further appetite suppression works against the actual risk here, which is failing to eat enough protein and losing muscle along with fat.
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After reviewing dozens of GLP-1 telehealth providers, CoreAge Rx is the one we recommend most. CoreAge Rx is one of our partners — read on for why we recommend them:
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322
Published dose figures across the catalogue
1
Proprietary blend — named and dosed
28g
Protein per serving, grass-fed whey isolate
$54.99
Fat burner you do not need
Why a fat burner is the wrong purchase on a GLP-1
Read the product's own description of what it does. It supports basal metabolic rate through green tea catechins and Forslean. It reduces hunger and cravings through Capsimax, a capsaicinoid extract from red chilli peppers described as helping reduce appetite and increase feelings of fullness. And it provides energy and focus through caffeine and L-theanine. Those are the three levers, and they are stated clearly and without exaggeration.
Now consider what you are already taking. A GLP-1 receptor agonist reduces appetite and slows gastric emptying through a hormonal pathway, and it does so with an effect size that no botanical extract approaches — that is the entire reason these drugs changed the field. Buying a $54.99 monthly supplement whose headline benefit is reduced appetite, while injecting a medicine that reduces appetite far more powerfully, is paying for a faint echo of something you already have.
But the stronger argument is that it points the wrong way. The nutritional problem in medically supported weight loss is almost never that people eat too much. It is that they eat too little, and specifically too little protein — because appetite is suppressed, because food is less appealing, and because nausea makes eating a chore. Under-eating protein while in a large calorie deficit is precisely how you lose muscle alongside fat, which costs strength, physical function and resting energy expenditure. A product that further reduces hunger and increases fullness makes the hard part harder.
Which is why the same company's whey isolate is the right purchase from the same shop. Twenty-eight grams of complete, leucine-rich protein in a drink is a genuinely useful way to hit a protein target when solid food is unappealing — liquid calories tend to go down more easily than a chicken breast when your appetite has gone. Combine that with resistance training and you are doing the two things that actually protect lean mass. Nothing else in any supplement catalogue does that job.
One practical caution on stimulants. The standard fat burner contains caffeine, the brand also sells caffeinated pre-workouts, and it is easy to stack two or three sources on top of ordinary coffee without adding them up. There are stim-free versions of both the fat burner and the pre-workout, which is the sensible route if you want the rest of a formula without the load. And if you have high blood pressure, an arrhythmia, anxiety, or you are already dealing with the palpitations that sometimes accompany rapid weight loss, total caffeine is worth raising with whoever manages your treatment.
How its disclosure compares with brands we have reviewed
| Brand | Doses published | Third-party testing | Our rating |
|---|---|---|---|
| Transparent Labs | 322 dose figures | Batch tested, results in footer, Informed Choice | 4.3 |
| FullWell Fertility | Full facts panels | Per-lot, results published | 3.4 |
| Mando | Ingredients yes, concentrations no | Not claimed | 3.0 |
| AW Naturals | One dose of eight ingredients | None found | 2.6 |
| mate | None — proprietary blends | None found | 1.8 |
Transparent Labs figures from its product catalogue retrieved 12 August 2026, 73 products. Comparative figures from our own separately published reviews of those brands. Ratings reflect each brand overall, not disclosure alone.
What we verified
1. Testing the name against the catalogue
When a company calls itself Transparent Labs, the review writes itself one way or the other, so we counted rather than assumed. Across 73 products we found 322 occurrences of milligram dose figures, 76 references to third-party testing, 62 to being tested, 40 to Informed Choice, and 12 to certificates of analysis. Product copy states that every batch is tested by a third-party laboratory for purity and potency and that all test results can be found in the footer of the website, and separately that products are certified by Informed Choice to meet standards for athletes.
The proprietary blend count is the detail that convinced us. The phrase occurs once in the entire catalogue, attached to Relora®, and the listing immediately identifies it as a patented blend of Magnolia officinalis and Phellodendron amurense at 250 mg. Proprietary blend labelling exists so a manufacturer can list ingredients without amounts; using it once, for a trademarked ingredient, while naming both constituents and the dose, is the opposite of using it to conceal. Set that against mate, whose entire range is proprietary blends with no dose published anywhere, and the difference in posture is total.
We should be clear about the limit of this. Everything above is a finding about disclosure, not about contents. We did not open a single certificate of analysis, did not check the Informed Choice register, and did not buy or test any product. A company that publishes detailed numbers is easier to hold to account than one that publishes none, and that is a genuine and undervalued virtue — but it is not the same as independent confirmation that the numbers are correct.
2. The fat burner, fairly described
We want to separate two things that usually travel together. Most fat burners we encounter are objectionable because they overclaim — implying dramatic results from thermogenic botanicals, borrowing pharmaceutical vocabulary, hiding stimulant doses. This one does not do that. Its copy sets out three modest mechanisms, attributes each to a named ingredient, and then states outright that there is no such thing as a magic pill while warning against crash diets. Written inside a fat burner listing, that is unusually honest and we are not going to pretend otherwise.
Our objection is narrower and specific to this readership: even taken entirely at face value, it is the wrong product for someone on a GLP-1. Its appetite mechanism duplicates, weakly, what the prescription already does strongly. Its stimulant component adds to a caffeine load people rarely total up. And its central promise — less hunger, more fullness — is the opposite of what this reader needs, because the failure mode here is under-eating protein and losing muscle. There is also a stim-free version at the same $54.99, which removes the caffeine objection but not the redundancy one.
Related reading
Protein is only half of protecting lean mass — the other half is resistance training, covered in our TRX review. Our iHerb review sets out what else is worth buying at a supplement retailer while on a GLP-1, and why collagen keeps being sold as the wrong answer. TRX Training · iHerb · FullWell.
In its favour
- 322 published dose figures across 73 products — the best disclosure we have checked.
- Batch third-party testing for purity and potency, with results stated to be published on the site.
- Informed Choice certification referenced across the range.
- One proprietary blend in the whole catalogue, and it names both botanicals and its 250 mg dose.
- 28g of complete, leucine-rich grass-fed whey isolate — the right protein for preserving lean mass.
- A $15.99 five-serving trial pack before committing to $59.99.
- Stim-free versions of both the pre-workout and the fat burner for people managing caffeine.
- Says plainly in its own fat burner copy that there is no such thing as a magic pill.
- robots.txt permits crawling with no restrictions on AI agents.
Against it
- Sells a $54.99 fat burner whose appetite mechanism duplicates, far more weakly, what a GLP-1 already does.
- That appetite suppression works against the real risk for this reader — under-eating protein and losing muscle.
- Caffeine appears across fat burners and pre-workouts, making it easy to stack sources unnoticed.
- A $49.99 median means this is a premium-priced range; the same protein exists more cheaply elsewhere.
- We verified disclosure practice only — we opened no certificate and checked no certification register.
- No independent review-platform rating was available to us.
Our verdict: 4.3 out of 5
The disclosure benchmark for this site — buy the whey isolate, ignore the fat burner, and note that both pieces of advice come from the same shop.
A company calling itself Transparent Labs is inviting exactly the check we ran, and it passed more comprehensively than anything else we have examined. Three hundred and twenty-two dose figures across 73 products. Seventy-six references to third-party testing and a stated policy of batch testing every product for purity and potency with results published on the site. Informed Choice certification. And one single use of the phrase proprietary blend in the entire catalogue — attached to a trademarked ingredient whose two botanical constituents and 250 mg dose are both printed right there.
That matters more than it may sound, because we have spent months documenting the opposite. A men's health brand whose entire range is undosed proprietary blends. A mushroom coffee naming eight ingredients and quantifying one. A botanical beauty brand publishing no ingredient list at all. Disclosure is the precondition for every other judgement a buyer might make, and a company that volunteers its numbers is accepting scrutiny it could easily have avoided. On that axis this is the best-run supplement operation we have reviewed.
So buy the protein. Twenty-eight grams per serving of grass-fed whey isolate at $59.99, with a $15.99 five-serving pack to test tolerance first, is precisely the right tool for the single most important nutritional task during rapid weight loss. Whey is complete and rich in leucine, the amino acid that most strongly triggers muscle protein synthesis — the exact opposite of the collagen products marketed relentlessly at this audience, which lack tryptophan and carry little leucine. Drinkable protein is also easier to get down than solid food when appetite has gone, which is usually the practical obstacle.
And do not buy the fat burner, for a reason that has nothing to do with the brand's honesty about it. Its own copy is admirably restrained — three modest mechanisms, each attributed to a named ingredient, plus an explicit statement that there is no such thing as a magic pill. The problem is that its central benefit, reduced hunger and increased fullness, is a weak imitation of what your prescription already achieves, and it pushes against the thing you actually need to do. The risk on a GLP-1 is not eating too much. It is eating too little protein and losing muscle with the fat. Paying $54.99 a month to be less hungry is paying to make that harder.
Four-point-three, our highest supplement rating, with the deduction for selling a product this readership should walk past and for premium pricing on protein available more cheaply elsewhere. We are paid 20% here, which means the fat burner we are telling you to skip would have earned us $11. Two honest limits on what we checked: everything here concerns disclosure practice rather than contents, since we opened no certificate of analysis, verified no certification register and bought nothing — and a brand that publishes good numbers has earned the benefit of the doubt, not a guarantee. Buy the $15.99 trial pack, add resistance training, and skip the aisle with the burners in it.
Frequently asked questions
What is Transparent Labs?
A supplement brand built around label transparency — publishing exact doses rather than hiding behind proprietary blends. The catalogue we pulled on 12 August 2026 held 73 products from $10 to $250 with a median of $49.99, organised into series covering protein, pre-workout, strength, wellness and physique. Headline products include a 100% Grass-Fed Whey Protein Isolate at $59.99 delivering 28 grams of protein per serving, Creatine HMB at $49.99, and a five-serving whey variety pack at $15.99.
Does the transparency claim hold up?
Yes, and by a clear margin — this is the best labelling we have examined on this site. Across the catalogue we counted 322 milligram dose figures, 76 references to third-party testing, 40 to Informed Choice and 12 to certificates of analysis. Product copy states that every batch is tested by a third-party lab for purity and potency and that results are published in the site footer. A brand can say transparent; this one appears to mean it.
Are there really no proprietary blends?
We found exactly one occurrence of the phrase in the whole catalogue, and it is the exception that proves the point. It refers to Relora®, a patented ingredient described as a proprietary blend of Magnolia officinalis and Phellodendron amurense — and the listing names both botanicals and gives the dose as 250 mg. So even the one proprietary blend in the range tells you what is in it and how much. That is a genuinely unusual standard.
Which product should I actually buy?
The whey isolate, if you buy anything. Preserving lean mass during weight loss depends on adequate complete protein plus resistance training, and 28 grams per serving of grass-fed whey isolate is exactly the right tool — whey is a complete protein and is rich in leucine, the amino acid that most drives muscle protein synthesis. It is the opposite of collagen, which we keep flagging because it lacks tryptophan and is low in leucine and gets sold to this audience constantly. The $15.99 five-serving pack is a sensible way to find out whether you can tolerate it before committing $59.99.
Why should I skip the fat burner?
Because you are already taking something that does the same job far better. The $54.99 PhysiqueSeries Recomp is sold on three mechanisms: supporting metabolic rate via green tea catechins and Forslean, reducing hunger and cravings via Capsimax capsaicinoids, and providing energy and focus via caffeine and L-theanine. A GLP-1 receptor agonist suppresses appetite through an entirely different and vastly more powerful route. Paying $54.99 a month for a weaker version of the effect your prescription already produces is the definition of redundant.
Is it just redundant, or actually a bad idea?
On a GLP-1 specifically, it can work against you. The nutritional risk in this situation is not eating too much — it is eating too little, particularly too little protein, which is how people lose muscle alongside fat. A product whose selling point is further reducing hunger and increasing fullness pushes in precisely the wrong direction when your problem is already getting enough protein into a suppressed appetite. Adding an appetite suppressant to an appetite suppressant is not a strategy.
What about the caffeine?
Worth counting rather than ignoring. The stimulant version of the fat burner contains caffeine, and the brand also sells caffeinated pre-workouts, so it is easy to stack several sources on top of coffee without noticing. There is a stim-free version of both the fat burner and the pre-workout, which is the sensible choice if you want the rest of the formula without the load. If you have high blood pressure, arrhythmia or anxiety, caffeine totals are worth a conversation with your clinician.
Does the company overclaim?
Less than most, and on the fat burner it explicitly does not. Its own copy for that product states there is no such thing as a magic pill and warns against crash diets. That is a striking thing to write inside a fat burner listing, and it deserves credit. Our objection to the product is not that the brand oversells it — it is that even accurately sold, it is the wrong purchase for someone on a GLP-1.
How does this compare to the other supplement brands you've reviewed?
Favourably, and it is now our benchmark. Mando publishes ingredient lists but not concentrations. Yves Rocher publishes almost nothing. AW Naturals names eight ingredients and doses one. mate hides everything behind proprietary blends. FullWell publishes per-lot testing and full facts panels and we rated it well for exactly that. Transparent Labs does what FullWell does and adds Informed Choice certification and published batch results across a much larger range.
What did you not check?
The things that would need buying and testing. We did not purchase anything, did not verify a single certificate of analysis by opening it, did not confirm the Informed Choice certification against that body's own register, and cannot tell you whether any product tastes acceptable or mixes properly. Our assessment is of disclosure practice, which is what a reader can act on before buying, not of whether the contents match the label.
How much do you earn from this?
Twenty per cent — about $12 on a $59.99 tub of whey, and $11 on the fat burner we are telling you not to buy. The practical advice here is to start with the $15.99 trial pack, which earns us roughly $3.20, so this is the least profitable version of the page.
Buy the protein. Walk past the burner.
Start with the $15.99 five-serving whey pack to check you tolerate it before spending $59.99. Pair it with resistance training, which is the other half of protecting lean mass. And if you are managing caffeine, note there are stim-free versions of both the pre-workout and the fat burner.
Visit Transparent Labs (affiliate link)Prices and product claims verified 12 August 2026 and subject to change.
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Read Review →Medical disclaimer
This article is informational and is not medical advice. Discuss supplements, protein targets and any stimulant-containing product with the clinician managing your treatment before starting them, particularly if you have hypertension, cardiac arrhythmia, anxiety disorder, kidney disease or liver disease, or are pregnant or breastfeeding. Protein requirements are individual and people with reduced kidney function may need protein intake managed rather than increased. Caffeine from fat burners, pre-workouts, coffee and tea is cumulative and can contribute to palpitations, raised blood pressure, anxiety and disturbed sleep. Appetite-suppressing supplements are not appropriate for everyone and may be counterproductive where intake is already inadequate; persistent inability to eat, unintended rapid weight loss, or symptoms of malnutrition should be assessed clinically. GLP-1 receptor agonists delay gastric emptying, which can affect absorption and timing of oral products. Dietary supplements sold in the United States are not approved by the FDA for safety or effectiveness before marketing, and certification schemes address contamination and label accuracy rather than clinical benefit.
Sources · date reviewed: 12 August 2026
- transparentlabs.com/products.json — retrieved 12 August 2026, returning 73 products. Source for the price range of $10.00 to $250.00 with a median of $49.99; for the series breakdown including WELLNESSSERIES, PROTEINSERIES, PRESERIES, CORESERIES, STRENGTHSERIES, RAWSERIES, PHYSIQUESERIES and MINDSERIES; and for the keyword counts across all product descriptions — 322 occurrences of milligram dose figures, 76 of third-party, 62 of tested, 40 of Informed, 12 of COA, 65 of grass-fed, 169 of caffeine, and exactly 1 of proprietary blend. A search for yohimbine returned no occurrences. Prices quoted: Grass-Fed Whey Protein Isolate $59.99, Whey Protein Isolate 5 Serving Variety Pack $15.99, Creatine HMB $49.99, Protein + Creatine bundle $99.00, Body Recomp Fat Burner $54.99, Body Recomp Stim-Free Fat Burner $54.99, Stim-Free Pre-Workout $49.99.
- Product descriptions in the same catalogue. Source for the statement that every batch of product is tested by a third-party lab for purity and potency with all test results available in the footer of the website; for certification by Informed Choice; for products being third-party tested for purity, potency and authenticity; for the single proprietary blend reference reading “Relora® (Proprietary Blend of Magnolia officinalis and Phellodendron amurense) | 250 mg”; for the Grass-Fed Whey Protein Isolate delivering 28 grams of protein per serving and being sourced from grass-fed American dairy cattle raised without growth factors or hormones; and for the PhysiqueSeries Recomp fat burner description citing Green Tea Leaf Extract catechins and Forslean for metabolic rate, Capsimax® capsaicinoids for reducing appetite and increasing fullness, and caffeine with L-theanine for energy and focus, alongside the statement that there is no such thing as a magic pill.
- Katalys offer listing #1237, retrieved 12 August 2026 — United States targeting.
- transparentlabs.com/robots.txt — retrieved 12 August 2026, 3,650 bytes, containing no restrictions on Anthropic or other AI crawlers.
- Nutrition context: loss of fat-free mass including skeletal muscle accompanies weight reduction in an energy deficit, and adequate intake of complete, leucine-rich protein together with resistance training are the principal means of attenuating it. Whey protein is a complete protein with high leucine content; collagen is an incomplete protein lacking tryptophan and low in leucine and is not a suitable primary protein for this purpose. GLP-1 receptor agonists reduce appetite via hormonal pathways and delay gastric emptying, and reduced energy intake on treatment can make achieving protein targets difficult. Proprietary blend labelling permits disclosure of blend constituents without individual quantities.
- Comparative ratings and disclosure findings for FullWell Fertility, Mando, AW Naturals and mate are drawn from our own separately published reviews of those brands.
Limitations, stated plainly. Everything in this review concerns what the company publishes, not what is in the tub. We did not buy or consume any product, did not open or examine a single certificate of analysis, did not verify the Informed Choice certification against that organisation's register, and did not independently test any product for label accuracy or contamination — so nothing here confirms that the published doses are correct, only that they are published. We did not assess taste, mixability or tolerability. We did not verify the grass-fed sourcing claim. Our counts derive from product descriptions in the catalogue feed rather than from rendered supplement facts panels, so figures may differ slightly from packaging. We could not obtain an independent review-platform rating. We did not examine the returns policy. We did not contact Transparent Labs before publishing.
Affiliate disclosure
GLP1Drugs.org is paid a 20% commission on purchases made through the links on this page — roughly $12 on a $59.99 tub of whey isolate, and $11 on the fat burner we are advising against. We have rated Transparent Labs 4.3 out of 5 — our highest supplement rating — on the basis of 322 published dose figures across 73 products, batch third-party testing with results stated to be published, Informed Choice certification, and a single proprietary blend that names both its constituents and its 250 mg dose. We have also told readers to buy the $15.99 trial pack rather than the $59.99 tub, and specifically not to buy the $54.99 fat burner, because its appetite suppression duplicates what their prescription already does and works against protecting muscle. No company reviewed here sees or approves our copy before publication.