Creatine HMB Review: 5 Facts From the Label and the Research
Creatine HMB Review: 5 Facts From the Label and the Research
Creatine HMB, best known as the Transparent Labs product of that name, pairs 5 g of creatine monohydrate with 1.5 g of HMB, plus vitamin D3 and BioPerine, at about $1.67 per serving. The creatine is fully dosed and does the work every creatine supplement does. The HMB is half the 3 g per day that every positive HMB trial used, and in trained lifters even the full dose adds little. This review checks the current label, walks through the combination studies, and tells you what you are paying the premium for.
Independent editorial review. MuscleScience has no commercial relationship with Transparent Labs or any other manufacturer and does not sell products.
Creatine HMB: 3 Things the Label and the Trials Tell You
A combination product is only as good as its weakest dose. Creatine HMB gets the creatine right and the HMB half right, and the research on HMB itself is split between untrained people, where it helps a little, and trained lifters, where it mostly does not. Here is the short version.
The full evidence-based daily dose of the most studied supplement in sports nutrition. On its own this is why the product works: strength, power and lean mass gains that hundreds of trials support.
Every trial that found a benefit from HMB, from Nissen 1996 to the combination studies, used 3 g per day. At 1.5 g the product delivers a dose no positive study has tested.
Thirty servings for $49.99 on transparentlabs.com, in 13 flavors or unflavored, Informed Choice certified. Plain creatine monohydrate costs a fraction of that; the premium buys the HMB, the certification and the flavor.
What This Creatine HMB Review Covers
The label on this product is transparent, which makes it easy to audit: four ingredients, each with a stated dose. What the label cannot tell you is whether HMB adds anything to creatine, in whom, and at what dose. That is the question the trials answer, and the answer depends heavily on training status.
The current Transparent Labs Creatine HMB label, every ingredient checked against its research dose.
What HMB is and how it works, and why its results differ so much between beginners and trained lifters.
The creatine plus HMB combination trials: what "additive" meant in Jówko 2001 and what the 2020 rowing study found.
Whether the premium over plain creatine is justified, and for whom.
Creatine basics and forms. See our creatine HCL vs monohydrate analysis for the chemistry and dosing of creatine itself.
HMB in clinical populations. Muscle preservation in older adults, bed rest and illness is a separate literature with different conclusions.
Flavor rankings. All flavors carry the same active doses.
Creatine HMB Ingredients: The Current Supplement Facts Panel vs the Research
Doses below are per serving as published on transparentlabs.com (30 servings per tub). The research column is the dose used in the trials that support each ingredient; the status column compares the two.
| Ingredient (per serving) | Dose | Research dose | Status |
|---|---|---|---|
| Creatine monohydrate | 5,000 mg | 3 to 5 g per day (ISSN 2017) | ● Full dose |
| HMB (beta-hydroxy beta-methylbutyrate, as MyHMB) | 1,500 mg | 3 g per day in every positive trial (ISSN 2013) | ● 50 percent |
| Vitamin D3 | 12.5 mcg (500 IU) | Only useful if deficient; 1,000 to 2,000 IU typical in correction protocols | ● Minor |
| BioPerine (black pepper extract) | 5 mg | 5 mg standard; enhances absorption of some compounds, not shown for creatine or HMB | ● Minor |
| Servings / price | 30 / $49.99 | About $1.67 per day; plain creatine monohydrate typically 10 to 20 cents per 5 g | ● Premium |
| Third-party testing | Informed Choice certified; batch results published | Relevant for tested athletes | ● Advantage |
The dose mismatch in one sentence: the ingredient with the strongest evidence (creatine) is fully dosed, and the ingredient that justifies the price (HMB) is dosed at half the level any positive study used. Older versions of this review warned that combination products often under-dose the creatine; on this label it is the HMB that falls short.
5 Things That Decide Whether Creatine HMB Is Worth It
Two active ingredients, two very different evidence bases, and one interaction question. Each of the five points below is a fact you can check against the label or the studies listed at the end.
Creatine monohydrate, 5 g: the ingredient that does the work
Creatine raises muscle phosphocreatine, which regenerates ATP during short maximal efforts. The ISSN position stand summarizes hundreds of trials: more reps at a given load, faster strength gains, and roughly 1 to 2 kg more lean mass over a training block than placebo. Five grams per day saturates muscle in about four weeks without loading. Every benefit a Creatine HMB user feels in the first month is this ingredient. If you are starting creatine for the first time, see whether a creatine loading phase is worth it before you stack anything on top.
HMB: a leucine metabolite that reduces breakdown more than it builds
HMB is made in the body from leucine, about 5 percent of leucine intake ending up as HMB. Supplementing 3 g per day raises blood HMB far above what diet can provide. Its documented effect is a reduction in muscle protein breakdown and in damage markers such as creatine kinase after hard training; Nissen and colleagues showed this in 1996 in untrained men, with larger lean mass gains than placebo over 3 to 7 weeks. The mechanism is real; the size of the effect depends on how much breakdown there was to prevent.
Training status decides the HMB result
Rowlands and colleagues pooled the HMB trials in 2009 and found small gains in strength and lean mass in untrained people and effects that were trivial in trained lifters. Sanchez-Martinez and colleagues repeated the exercise in 2018 for trained athletes only and found no significant effect on strength or body composition. Jakubowski and colleagues went further: in trained men, 3 g of HMB produced the same hypertrophy and strength gains as an equivalent amount of plain leucine. A beginner in the first months of lifting may get something from HMB; a lifter with two years of training is unlikely to notice it.
The combination trials: additive in beginners, hormonal in rowers
Jówko and colleagues gave 40 men creatine, HMB, both, or placebo for three weeks of training. Lean mass gains over placebo were 0.92 kg for creatine, 0.39 kg for HMB and 1.54 kg for both, and the effects were additive rather than synergistic: each ingredient contributed its own share. Fernández-Landa and colleagues ran a 10-week trial in elite rowers and found the combination raised testosterone and the testosterone to cortisol ratio more than either alone, without reporting a performance advantage beyond creatine.
Both trials used 3 g of HMB per day. No trial has tested the 1.5 g in this product alongside creatine.
Vitamin D3 and BioPerine: label filler with a defensible story
Vitamin D at 500 IU is a maintenance amount, not a correction dose; it helps only if you are deficient, and if you are deficient you need bloodwork and a larger dose. BioPerine (piperine) improves absorption of several compounds, notably curcumin, but creatine is already almost completely absorbed and no trial shows piperine changes HMB uptake. Neither ingredient harms the product; neither is a reason to buy it.
Creatine HMB Doses vs Research Thresholds: A Visual Comparison
The chart plots each ingredient against the dose the supporting research used. The animated bars underneath show a different thing: the actual lean mass numbers from the one trial that tested creatine and HMB separately and together.
A different view: lean body mass gained over placebo in 3 weeks of training (Jówko 2001, 40 men, HMB at 3 g per day, creatine loaded then 10 g per day).
Creatine delivered about 60 percent of the combined gain; HMB about 25 percent, in the men studied and at double the HMB dose found in this product. In trained lifters the HMB share shrinks toward zero.
Is Creatine HMB Worth It? Who Should Buy It and Who Should Buy Plain Creatine
Judged as a creatine product, Creatine HMB is a good one: full dose, monohydrate, third-party tested, and it dissolves and tastes better than bulk powder. Judged as a creatine plus HMB product, it under-delivers on the ingredient you are paying for. The decision comes down to who you are and what the extra dollar a day buys you.
You are a tested athlete and Informed Choice certification is worth the premium on its own.
You are in your first year of training or returning after a long break, where HMB has its best evidence, and you accept that 1.5 g is a partial dose.
You will not take unflavored creatine consistently and a flavored, dissolving product is what gets it into you daily.
You are in a hard cut or a high-volume block where limiting muscle breakdown matters more than usual.
You have trained consistently for two or more years: the HMB share of the benefit is close to zero in this group.
Cost per month matters: 5 g of monohydrate a day costs a fraction of $1.67 per serving.
You want HMB at the studied dose: buying creatine and 3 g of HMB separately is cheaper than two servings of this product.
You do not need the vitamin D or the piperine, which is nearly everyone.
4 Mistakes People Make With Creatine HMB
- Crediting the HMB for the first month's gains. Creatine saturates muscle over roughly four weeks and produces the visible strength and weight change. Attributing that to HMB, then buying HMB alone, is the most common sequel.
- Assuming 1.5 g of HMB is a research dose. Every positive trial, including both combination trials, used 3 g per day. If you want the studied effect, you need two servings or a separate HMB product.
- Expecting the trained-lifter result to match the beginner studies. The trials that made HMB famous used untrained subjects. Meta-analysis in trained athletes shows no significant effect on strength or body composition.
- Stopping when the scale jumps. The 1 to 2 kg early increase is water pulled into muscle by creatine, not fat. It is the supplement working, not a reason to quit.
Creatine HMB: Common Questions Answered
What is in Transparent Labs Creatine HMB?
Per serving: 5,000 mg creatine monohydrate, 1,500 mg HMB (as MyHMB), 12.5 mcg (500 IU) vitamin D3 and 5 mg BioPerine black pepper extract. Thirty servings per tub, available unflavored or in 13 flavors, Informed Choice certified and third-party tested per batch.
Does HMB actually work with creatine?
In the one direct trial (Jówko 2001), creatine and 3 g of HMB each added lean mass and strength and the effects were additive, with creatine contributing about twice as much as HMB. A 2020 study in elite rowers found hormonal changes with the combination but no clear performance advantage over creatine alone. Both used 3 g of HMB, double the dose in this product.
Is creatine HMB better than regular creatine?
For a trained lifter, no: the creatine dose is the same 5 g, and HMB adds little in people with training experience. For a beginner or someone returning to training, the HMB may add a small amount of lean mass and reduce soreness, though the 1.5 g dose is below what the trials used. The product's real advantages are certification, flavor and convenience.
How much HMB per day is effective?
3 g per day, usually split into three 1 g doses, is the amount used in essentially every positive trial and the ISSN position stand. Creatine HMB provides 1.5 g per serving, so one serving delivers half the studied dose. As for when to take it, our guide to creatine before or after a workout covers what the timing trials found.
Do you need to load creatine HMB?
No. Five grams of creatine monohydrate per day saturates muscle in about four weeks without a loading phase. Taking two servings for the first week would speed saturation slightly and double the HMB to the research dose, at double the cost.
Does creatine HMB have side effects?
Creatine causes 1 to 2 kg of water weight gain in muscle and raises serum creatinine, which can affect kidney blood tests; both are expected and benign in healthy adults. HMB at 3 g per day has no significant reported adverse effects. Piperine can affect the metabolism of some medications, so people on prescription drugs should check with a pharmacist.
Sources & Further Reading
Label doses are taken from transparentlabs.com. The research claims above rest on the following sources; each PMID was verified against the PubMed record before publication.
More from the Supplements series
Evidence-first guides to creatine and the supplements that surround it.
Final Educational Note
This article is for educational purposes and does not constitute medical advice. Ingredient doses reflect the Transparent Labs Creatine HMB label published by the manufacturer at the time of writing and may change; always read the panel on the product you purchase. Creatine raises serum creatinine, which can affect the interpretation of kidney function tests.
MuscleScience has no commercial relationship with Transparent Labs or any other manufacturer. Individuals with kidney disease, those taking prescription medication, and anyone under 18, pregnant or breastfeeding should consult a licensed clinician before using creatine or HMB. For the framework we apply to every product, see evidence-based supplements and how to read supplement labels.
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