About Us
Stay strong for
the life
you're living.
Starting in your 30s, your body quietly begins losing lean muscle — even if you're active. 4LIVN HMB Fruit Chews deliver 3g of myHMB® daily in the only chewable form that exists. Built for people who want to stay strong for the life they've built.
Most people don't notice it
until it's already happened.
Age-related muscle loss begins as early as your 30s. Silently. Without obvious warning signs. By your 50s, you can be losing 1–2% of lean muscle per year. Even if you're exercising. Even if you eat well.
The people most at risk aren't sedentary — they're the ones cutting calories, recovering from illness, managing their weight, or simply living a full life without thinking about what they might be losing along the way.
after age 50, even with exercise
typically begins
Your reason to protect
your muscle is your own.
We're for anyone who wants to stay strong for the life they're living.
during weight loss
GLP-1 medications are remarkable for weight loss. But they can accelerate muscle loss too. Here's what you need to know — and what to do about it.
Learn more →for the long game
Muscle is the foundation of everything: energy, mobility, independence, and metabolic health. Protecting it is the single best investment you can make in your future.
Learn more →building smarter
You're showing up. Working out, staying active, watching what you eat. HMB helps your body get more out of the effort you're already putting in.
Learn more →4LIVN HMB
Fruit Chews
The only chewable form of HMB that exists. We made it a chew because consistency is the whole point — and capsules get skipped, powders get forgotten.
The 4LIVN guide to
protecting your muscle as you age.
Everything you need to know about HMB, muscle health, and staying strong — written in plain language. No hype. No pressure. Just the stuff that works.
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4LIVN HMB Fruit Chews
— Protect Your Muscle. Every Day.
We created 4LIVN HMB Fruit Chews — the first chewable form of HMB (beta-hydroxy beta-methylbutyrate), a naturally occurring compound your body produces from the amino acid leucine. HMB has been widely studied for its role in supporting lean muscle mass, recovery, and healthy aging.
Unlike powders you forget to mix or capsules you forget to take, our fruit chews are built for real life — portable, great-tasting, and easy to stay consistent with. Every serving delivers 3g of myHMB® — the dose used in peer-reviewed research — in a form you'll actually take.
4LIVN is built around a simple idea: musclespan — the goal of spending as many years as possible strong, mobile, and fully capable.
Other ingredients: Apples, Orange Juice Concentrate, Organic Baobab Fruit Pulp Powder. Contains less than 2% of Pectin, Medium Chain Triglycerides, Natural Orange Flavor. myHMB® is a registered trademark of TSI Group Co., Ltd.
Consistency is the whole point. HMB works by accumulating in your system over time — so daily use matters more than timing. The fruit chew format was designed specifically to make that consistency easy.
For healthy individuals 18 years and older. Consult a physician prior to use if pregnant or nursing, taking medication, or managing a health condition.
HMB is one of the most studied muscle-support ingredients available — backed by 50+ peer-reviewed studies and more than 30 years of clinical research.
Over 50 peer-reviewed studies. More than 30 years of clinical research. This is what the science says — in plain language.
Beta-hydroxy beta-methylbutyrate.
Your body already makes it.
HMB is a naturally occurring compound produced when your body metabolizes leucine — an essential amino acid found in protein-rich foods. But here's the key: you can't eat enough protein to produce a meaningful amount of HMB. Even a very high-protein diet yields only about 0.2–0.4g of HMB per day. Research consistently shows that 3g per day is where the muscle-protective benefits appear.
Not all HMB is created equal.
We use the best.
myHMB® is the branded, clinically validated form of HMB produced by TSI Group — the same ingredient used in the majority of peer-reviewed HMB research. It is USP verified for purity and potency, meaning what's on the label is what's in the chew.
Science without
the supplement-label hype.
We make one thing. We put the clinically studied dose in a form people will actually take. We don't overclaim, we don't use proprietary blends, and we don't hide behind marketing language.
Life is For Living.
Not for managing.
The gap no one
was filling.
The supplement industry is obsessed with performance. Protein powders for athletes. Creatine for gym-goers. Pre-workouts for people already working out. Everything designed for the already-committed.
But the people who most need muscle support aren't athletes. They're the 52-year-old who walks three times a week. The 60-year-old managing their weight. The 48-year-old who wants to stay strong through whatever comes next. The people who want to feel capable — not ripped.
4LIVN was built for them. For you. For anyone who just wants to stay strong for the life they've built.
The format is the point.
We chose the chew format because the supplement industry's compliance problem is solved the same way every other habit is formed: by making it easy, enjoyable, and worth returning to.
The 4LIVN manifesto.
Ready to protect
your muscle?
One habit. Six chews a day. Built around a simple idea — spending as many years as possible strong, mobile, and fully capable.
Your medication is working.
Your muscle needs backup.
GLP-1 medications are remarkable tools for weight loss. But research shows they can accelerate muscle loss alongside fat loss. Protecting your lean muscle while you're losing weight matters for your long-term strength, metabolism, and results.
Weight loss is the goal.
Muscle loss is the side effect
worth managing.
When you're in a caloric deficit — whether from GLP-1 medication or any other method — your body doesn't lose just fat. It also loses lean muscle tissue. This is normal, but it has real consequences: reduced metabolic rate, decreased strength, impaired mobility, and a harder time maintaining weight long-term.
HMB has been specifically studied in the context of caloric restriction and weight loss. It helps your body preserve lean muscle tissue during the weight loss process — so when you reach your goal, you arrive there stronger.
Support your muscle.
Every day. Simply.
6 chews. 3g of myHMB®. The clinically studied dose, in the most convenient form it's ever been available.
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Strong muscles are the
foundation of everything else.
Energy. Mobility. Metabolic health. Independence. Confidence. None of it comes easily without lean muscle. And protecting it gets harder — and more important — with every passing year.
- ✓Maintaining strength as you stay active
- ✓Supporting recovery from exercise and daily activity
- ✓Keeping energy and metabolism where you want them
- ✓Staying independent for the long term
- ✓Protecting what you've spent decades building
Not just lifespan.
Musclespan.
Musclespan is the goal of spending as many years as possible strong, mobile, and fully capable. Not just alive — capable. The ability to carry your own groceries, play with your grandchildren, travel without limitations, and live with the physical confidence you've earned.
HMB has been studied specifically in older adult populations — and the results are consistent. In combination with activity, it helps preserve lean muscle mass, improve functional strength, and support recovery. Even in those who aren't doing structured exercise, the research shows meaningful benefits.
Stay strong for
the life you've built.
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You're putting in the work.
Get more out of it.
You're active. You're watching what you eat. You're showing up consistently. HMB is designed to help your body get more from that effort — supporting recovery, protecting lean muscle, and helping the work you put in go further.
Consistency is your edge.
HMB protects it.
Exercise is the stimulus. Recovery is where the adaptation happens. HMB supports both sides of that equation — helping reduce muscle damage during intense training and accelerating the recovery process so you may recover more quickly and get back to what you're doing.
It also provides a safety net for the weeks when life gets in the way. Travel, illness, a demanding work period. HMB helps preserve what you've built even when your routine gets interrupted.
More return on every
hour you put in.
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Questions about HMB
and 4LIVN? We've got you.
Plain answers to the questions we get most. No jargon, no lecture — just the stuff you actually need to know.
Still have questions?
We're happy to help. Reach out and a real person from our team will get back to you.
Real information about
muscle, aging, and living well.
No hype. No perfection. Just the stuff that actually helps you stay strong for the life you're living.
Get the guide.
The 4LIVN guide to protecting your muscle as you age — everything in one place, in plain language.
Products purchased through 4livn.com can be returned within 90 days for a full refund under our satisfaction guarantee. Products purchased through third-party retailers must be returned through the original seller. For questions, email support@4livn.com and our team will assist you.
Effective April 2026 · Subject to revision
