Advanced Muscle Plus Review (2026): Does It Actually Work?

This article contains affiliate links. We only recommend products we have independently researched. Reviewed by the HealthyMag Editorial Team. Last updated: 23 September 2026.

If you are over 40 and have noticed that strength you once took for granted is quietly slipping away, you are not imagining it. Adults lose roughly 3–8% of muscle mass per decade after 30, and the rate accelerates after 60 — a process called sarcopenia. So when a supplement like Advanced Muscle Plus promises to flip a “muscle switch” and rebuild what age has taken, it lands on a very real fear. The question is whether the product delivers, or whether it is selling a legitimate idea with exaggerated numbers.

We spent time reading the sales page, tracing every headline statistic back to the actual published research, and separating what the science genuinely supports from what the marketing implies. Here is our honest assessment. (Disclosure: HealthyMag earns a commission if you buy through the links on this page, at no extra cost to you. That does not change our findings — the caveats below are exactly what we would tell a family member.)

What is Advanced Muscle Plus?

Advanced Muscle Plus is a dietary supplement sold by Advanced Bionutritionals, a long-running supplement company, through the Digistore24 platform. It is formulated and endorsed by Dr. Greg Eckel, ND, a naturopathic doctor with around 23 years of experience who has been featured on ABC, NBC and FOX affiliates. Worth noting up front: Dr. Eckel is compensated by Advanced Bionutritionals, so his endorsement, while credentialed, is not independent.

The product’s pitch centers on the mTOR pathway — sometimes marketed as the body’s “muscle switch.” mTOR is a genuine cellular signaling hub that, when activated, tells muscle cells to build new protein. That part is real biochemistry. The claim is that Advanced Muscle Plus reactivates this switch in people over 40 whose muscle-building signaling has grown sluggish with age (a phenomenon researchers call “anabolic resistance,” which is also real).

Unlike a typical protein powder, the formula is short. The sales copy centres on two branded, patented ingredients, Peptide DL185 (dileucine) and MyHMB (HMB), but the current Supplement Facts panel lists a third active: vitamin D3 at 200 mcg (8,000 IU) per serving. We cover what that means below.

The two headline ingredients — what the science really says

The good news is that Advanced Muscle Plus is not built on obscure herbs or vague “proprietary blends” of unknown fillers. Both ingredients are compounds that serious muscle researchers actually study. The important nuance is who was studied and under what conditions.

Dileucine (Peptide DL185)

Dileucine is simply two leucine amino acids bonded together. Leucine is the amino acid most responsible for triggering muscle protein synthesis (MPS), and early research suggests the bonded “dipeptide” form may be absorbed and used more effectively. In a 2021 crossover trial published in the Journal of Applied Physiology, ten healthy young men (average age 23) who took 2 g of dileucine showed roughly 42% greater muscle protein synthesis than when they took the same dose of plain leucine — and notably, the leucine dose alone did not significantly raise MPS at all. A follow-up 2024 randomized controlled trial in 34 resistance-trained men (average age 28) found that 2 g of dileucine daily produced greater gains in leg-press strength and endurance over 10 weeks than leucine or placebo. You can read our fuller deep-dive on dileucine and DL185 for the mechanics.

The honest caveat is large: both studies were done in young, resistance-trained men who were actively lifting weights — not the 60- and 70-year-olds sitting at home who are the target buyers of this product. And critically, the 2024 trial found no significant difference in actual muscle mass or muscle thickness between groups, despite the strength gain. So the current human evidence supports dileucine helping trained people get stronger, not by itself rebuilding lost muscle in sedentary older adults.

MyHMB (HMB)

HMB (beta-hydroxy beta-methylbutyrate) is a metabolite of leucine, and its evidence profile is almost the mirror image of dileucine’s. HMB shines not at building new muscle in the young, but at preventing muscle breakdown in older, sick, or immobilized people. In a landmark 2013 study in Clinical Nutrition, older adults on 10 days of strict bed rest who took 3 g of HMB daily lost almost no lean mass (−0.17 kg) while the placebo group lost a substantial 2.05 kg — essentially, HMB protected their muscle during forced disuse. A 2021 systematic review and meta-analysis of nine trials (448 older adults) similarly concluded that HMB significantly helps preserve fat-free mass in older people. See our HMB and muscle-loss deep-dive for the full picture.

The caveat here is about when it helps: HMB’s benefit is clearest in catabolic states (bed rest, illness, frailty, aggressive calorie deficits). In healthy, well-fed adults its effect on strength and function is modest and inconsistent across studies.

What is actually on the label, and how it compares with the studies

The Supplement Facts panel on the official product page (checked 23 September 2026) gives the dose for a daily serving of six tablets. Set against the studies the sales page leans on, two of the three doses do not match.

HMB at half the studied dose. The 12-month trial the sales page cites, by Rathmacher and colleagues in the Journals of Gerontology in 2020, gave 117 adults over 60 a combination of 3.0 g of calcium HMB and 2,000 IU of vitamin D3 a day. The authors note that 3 g a day is the dose used in the majority of HMB studies in older adults, and it is the dose in the bed-rest study as well. Advanced Muscle Plus supplies 1.5 g. Whether half the dose delivers half the effect, or less, has not been tested.

Vitamin D at twice the upper limit. The Institute of Medicine’s 2011 report set the tolerable upper intake level for vitamin D at 4,000 IU a day for everyone aged nine and older, the highest daily intake likely to pose no risk. The indicators it weighed included high blood calcium, high urinary calcium, soft-tissue calcification and kidney stones, and it noted U-shaped associations, with risks at both low and high levels. At 8,000 IU, this product is double that ceiling on its own, before any vitamin D from a multivitamin, a separate supplement or fortified food. Doctors do prescribe higher doses for diagnosed deficiency, under monitoring; that is a different situation from buying a muscle supplement.

The HMB plus vitamin D result is real, and it came from people who were low in vitamin D. In the Rathmacher trial, participants were enrolled because their vitamin D was insufficient. Among those who did not exercise, the supplemented group gained 0.44 kg of lean mass at six months while the control group lost 0.33 kg, and knee strength and a combined function score improved. Among those who did exercise, the supplement did not add to the functional gains. It is a genuine finding, in a specific group, at doses this product does not use.

Do the sales-page claims hold up?

This is where a balanced review earns its keep. The individual statistics are mostly traceable to real studies — but the way they are framed leans heavily toward the optimistic.

“Boosts muscle protein synthesis 159%.” The peer-reviewed dileucine trial we could verify reported roughly a 42% increase in MPS versus leucine, not 159%. A larger figure like 159% could only come from comparing dileucine against a fasted baseline or some other reference point — it is not the headline number in the published human paper. Treat “159%” as marketing math, not the cleanest read of the science.

“+133 lb leg press in a 10-week study, about 3x placebo.” The 2024 RCT did find a significantly greater leg-press improvement with dileucine, but the reported range was wide (roughly 6 to 73 kg greater than placebo). A “133 lb” figure sits at the optimistic end of that spread. More importantly, this was achieved by young trained men doing a structured lifting program — the strength gain came with the training, not instead of it. And again: no measurable gain in actual muscle size.

“HMB reduces muscle loss 57%” and “bedridden adults retained all muscle.” The bed-rest claim is well supported — the Deutz 2013 study genuinely showed near-total muscle preservation during 10 days of bed rest. The specific “57%” figure appears to come from a different analysis and represents a plausible average across studies. This is arguably the most honest part of the sales page.

The single biggest gap: there is no published clinical trial on Advanced Muscle Plus itself. Every statistic describes an isolated ingredient in a specific population. Combining two evidence-based ingredients is reasonable, but it does not automatically reproduce those study results in a different person under different conditions. The recurring “without changing your routine” implication is the weakest claim of all — the underlying research was built on protein intake and, for the strength data, resistance exercise.

Pros and cons

Pros:

• Both ingredients are real, patented, and backed by genuine peer-reviewed human research — not filler or pseudoscience.
• Dileucine and HMB are complementary: one leans toward stimulating muscle building, the other toward preventing muscle loss.
• Transparent label: every dose is stated, no “proprietary blend” hiding amounts.
• Formulated by a licensed practitioner and sold by an established company with a real return policy.
• Genuinely strong 90-day money-back guarantee, including on empty bottles.

Cons:

• Expensive — roughly $67–$80 per bottle depending on quantity; the raw ingredients can be bought separately for less.
• No clinical trial on the actual finished product.
• The most impressive numbers come from young, trained men — not the over-60 audience being marketed to.
• The “works without changing your routine” framing oversells it; the science depends on adequate protein and ideally resistance training.
• HMB is 1.5 g a day, half the 3 g used in most HMB research, including the trial the sales page cites.
• Vitamin D is 8,000 IU a day, twice the Institute of Medicine’s 4,000 IU upper limit, before counting any other source.
• The endorsing doctor is paid by the manufacturer.

Price, guarantee & how to buy

• 1 bottle: $79.95
• 3 bottles: $214.95 total — $71.65/bottle, saving $84.90, with free US shipping
• 6 bottles: $399.90 total — $66.65/bottle, saving $199.80, with free US shipping

Every order is covered by a 90-day money-back guarantee. You can return the product — even empty bottles — for a refund of the purchase price minus shipping. That is a genuinely consumer-friendly policy and meaningfully lowers the risk of trying it. The on-page rating stands at 4.5 out of 5 from 21 reviews, with 86% recommending it; a small, self-hosted sample, so treat it as a directional signal rather than proof.

Who should (and shouldn’t) try it

It may be worth a try if you are: an adult over 40 or 50 who is genuinely committed to eating enough protein (roughly 1.2–1.6 g per kg of body weight daily) and doing some form of resistance training, and who wants an evidence-based edge to fight age-related muscle loss. It is also a reasonable consideration for someone recovering from illness or a period of immobility, where HMB’s muscle-preserving evidence is strongest. Our guide to building muscle after 60 covers the foundation this product is meant to sit on top of.

It is probably not for you if: you are hoping to build muscle without changing your diet or activity, you are on a tight budget (the ingredients are cheaper bought separately), or you expect the young-trained-men results to transfer directly to a sedentary lifestyle. A supplement cannot out-work a chair.

Check with your doctor first if: you already take vitamin D or a multivitamin that contains it, you have had kidney stones or high blood calcium, or you have kidney disease. At 8,000 IU a day this product is above the upper limit on its own, and those are the risks the limit was set against.

Our verdict

Advanced Muscle Plus is a legitimate product built on legitimate ingredients — a refreshing change from the herbal fairy dust that dominates the “muscle after 40” market. Dileucine and HMB both have real, published human research behind them. What holds it back from a wholehearted recommendation is the gap between the marketing and the evidence: the eye-catching statistics come from isolated ingredients in populations quite different from the target buyer, there is no trial on the finished formula, the HMB dose is half the studied amount, the vitamin D is twice the recommended upper limit, and the pricing is steep for what amounts to two well-studied compounds plus a high-dose vitamin. If you will do the work — protein and training — and the 90-day guarantee makes the risk tolerable to you, it is a reasonable, science-adjacent bet. If you are looking for a passive miracle, it is not that, and no honest review would pretend otherwise.

Frequently Asked Questions

Is Advanced Muscle Plus a scam?

No. It is sold by an established company (Advanced Bionutritionals) with a real 90-day money-back guarantee, and its two headline ingredients have genuine peer-reviewed research behind them. “Scam” would imply fake ingredients or no recourse, neither of which applies here. The fair criticism is not that it is fraudulent, but that its marketing overstates how much the ingredient studies apply to the average over-60 buyer.

Does Advanced Muscle Plus really work?

Its ingredients “work” in the research sense — dileucine has been shown to boost muscle protein synthesis and strength in trained young men, and HMB reliably helps preserve muscle in older or immobilized adults. But there is no trial on the finished product, and results depend heavily on getting enough protein and doing resistance exercise. Expect a modest, supportive effect on top of good habits, not a transformation on its own.

What are the side effects of Advanced Muscle Plus?

Dileucine and HMB are generally well tolerated in studies, with no serious side effects commonly reported at typical doses. The ingredient to watch is vitamin D: a daily serving contains 8,000 IU, twice the Institute of Medicine’s 4,000 IU upper limit for adults, a ceiling set against risks including high blood calcium and kidney stones. If you already take vitamin D, have had kidney stones or high calcium, or have kidney disease, check with your doctor first.

How much does Advanced Muscle Plus cost?

One bottle is $79.95. A three-bottle package is $214.95 ($71.65 per bottle) and six bottles are $399.90 ($66.65 per bottle), both with free US shipping. That works out to roughly $67–$80 per bottle depending on how much you buy.

Is there a money-back guarantee?

Yes — a 90-day money-back guarantee. You can return the product, even empty bottles, for a refund of the purchase price minus shipping. This is one of the more generous guarantees in the supplement space and lowers the risk of trying it.

Who makes Advanced Muscle Plus?

It is made by Advanced Bionutritionals, a long-established supplement company, and is formulated and endorsed by Dr. Greg Eckel, ND, a naturopathic doctor. Note that Dr. Eckel is compensated by the company, so his endorsement is paid rather than independent.

How do I take Advanced Muscle Plus?

The label serving is six tablets a day. For the ingredients to matter, take it consistently alongside adequate daily protein and, ideally, some resistance exercise — that combination is what the underlying research was built on. The supplement is designed to support those habits, not replace them.

Is Advanced Muscle Plus worth it?

It can be worth it for an over-40 adult who is committed to protein and training and wants an evidence-based ingredient stack, particularly given the 90-day guarantee. It is likely not worth it for someone on a tight budget (the ingredients are cheaper separately) or anyone hoping to gain muscle without changing their diet or activity.

The Bottom Line

Advanced Muscle Plus is one of the more honest products in a dishonest category: real ingredients, real science, a real guarantee. But “real science on the ingredients” is not the same as “proven to work for you,” and the sales page blurs that line — borrowing results from young, training athletes and implying they will happen while you change nothing. If you are over 40, will genuinely eat enough protein and train, and can afford roughly $67–$80 a bottle, it is a defensible, low-risk experiment thanks to the 90-day refund. If you want a shortcut that works from the couch, this is not it — and no supplement is.

Sources

1. Paulussen KJM, et al. “Dileucine ingestion is more effective than leucine in stimulating muscle protein turnover in young males: a double-blind randomized controlled trial.” Journal of Applied Physiology, 2021. https://journals.physiology.org/doi/full/10.1152/japplphysiol.00295.2021
2. Hagele AM, et al. “Dileucine ingestion, but not leucine, increases lower body strength and performance following resistance training: a double-blind, randomized, placebo-controlled trial.” PLoS One, 2024;19(12):e0312997. PMID 39739679. 34 resistance-trained men, average age 28, 2 g/day for 10 weeks. https://pmc.ncbi.nlm.nih.gov/articles/PMC11687731/
3. Deutz NEP, et al. “Effect of β-hydroxy-β-methylbutyrate (HMB) on lean body mass during 10 days of bed rest in older adults.” Clinical Nutrition, 2013. https://pubmed.ncbi.nlm.nih.gov/23514626/
4. Rathmacher JA, et al. “Long-term effects of calcium β-hydroxy-β-methylbutyrate and vitamin D3 supplementation on muscular function in older adults with and without resistance training: a randomized, double-blind, controlled study.” Journals of Gerontology: Series A, 2020;75(11):2089–2097. PMID 32857128. 117 adults over 60 with insufficient vitamin D; 3.0 g calcium HMB plus 2,000 IU vitamin D3 daily for 12 months. Checked 23 September 2026. https://pubmed.ncbi.nlm.nih.gov/32857128/
5. Ross AC, et al. “The 2011 report on dietary reference intakes for calcium and vitamin D from the Institute of Medicine: what clinicians need to know.” Journal of Clinical Endocrinology & Metabolism, 2011;96(1):53–58. PMID 21118827. Vitamin D upper limit 4,000 IU/day from age nine. Checked 23 September 2026. https://pubmed.ncbi.nlm.nih.gov/21118827/
6. Advanced Bionutritionals. Advanced Muscle Plus Supplement Facts panel (6 tablets: vitamin D3 200 mcg = 8,000 IU, calcium HMB 1,500 mg = 1.5 g, dileucine 2,000 mg = 2 g). Checked 23 September 2026.
7. Lin Z, et al. “Effects of oral administration of β-hydroxy β-methylbutyrate on lean body mass in older adults: a systematic review and meta-analysis.” European Geriatric Medicine, 2021. https://pubmed.ncbi.nlm.nih.gov/33034021/