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Abarelix
Hormone Support
Acetyl Hexapeptide-3 (Argireline)
Cosmetic
Adipotide
Weight Management
Adrenomedullin
Healing & Recovery
Alexamorelin
Growth Hormone
Angiotensin (1-7)
Healing & Recovery
AOD-9604
Weight Management
Apelin-13
Healing & Recovery
ARA-290 (Cibinetide)
Healing & Recovery
Bestatin (Ubenimex)
Immune
BPC-157
Healing & Recovery
Buserelin
Hormone Support
Cagrilintide
Weight Management
Capromorelin
Growth Hormone
Cartalax
Anti-Aging
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Immune
Cerebrolysin
Cognitive
Cerluten
Cognitive
Cetrorelix
Hormone Support
Chonluten
Immune
CJC-1295 (No DAC)
Growth Hormone
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Growth Hormone
Copper Tripeptide-1 (GHK-Cu)
Cosmetic
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Cognitive
Crystagen
Immune
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Immune
Defensin (HBD-2)
Immune
Defensin (HBD-3)
Immune
Degarelix
Hormone Support
Dihexa
Cognitive
DSIP (Delta Sleep-Inducing Peptide)
Sleep & Recovery
Dulaglutide
Weight Management
Enalapril
Healing & Recovery
Epithalon
Anti-Aging
Exenatide
Weight Management
Fertirelin
Hormone Support
Ganirelix
Hormone Support
GHK-Cu
Cosmetic
GHRH (1-29)
Growth Hormone
GHRP-2
Growth Hormone
GHRP-6 (Growth Hormone Releasing Peptide-6)
Growth Hormone
Gonadorelin (GnRH)
Hormone Support
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Immune
Hexarelin
Growth Hormone
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Hormone Support
Human Growth Hormone (HGH)
Growth Hormone
IGF-1 LR3
Growth Hormone
Immunoxel (Dzherelo)
Immune
Imunofan
Immune
Intermedin (Adrenomedullin-2)
Healing & Recovery
Ipamorelin
Growth Hormone
Kisspeptin-10
Sexual Health
KPV (Alpha-MSH Fragment)
Healing & Recovery
Lactoferricin B
Immune
Larazotide
Healing & Recovery
Lentinan
Immune
Leuphasyl
Cosmetic
Leuphasyl
Cosmetic
Leuprolide
Hormone Support
Liraglutide
Weight Management
Livagen
Anti-Aging
Lixisenatide
Weight Management
LL-37
Immune
Macimorelin
Growth Hormone
Magainin-2
Immune
Mazdutide
Weight Management
Melanotan-2
Cosmetic
MK-677 (Ibutamoren)
Growth Hormone
MOTS-c
Metabolic
Myristoyl Pentapeptide-17
Cosmetic
N-Acetyl Selank
Cognitive
N-Acetyl Semax Amidate
Cognitive
NAD+
Mitochondrial
Nafarelin
Hormone Support
Natriuretic Peptide (ANP)
Healing & Recovery
Nesiritide (BNP)
Healing & Recovery
Nisin
Immune
Noopept (Omberacetam)
Cognitive
Orforglipron
Weight Management
Ovagen
Anti-Aging
Oxytocin Acetate
Hormone Support
P21 (P021)
Cognitive
PACAP-38
Healing & Recovery
Palmitoyl Oligopeptide
Cosmetic
Palmitoyl Pentapeptide-4 (Matrixyl)
Cosmetic
Palmitoyl Tetrapeptide-7
Cosmetic
Palmitoyl Tripeptide-1
Cosmetic
Pancragen
Metabolic
PEG-MGF
Healing & Recovery
Pemvidutide
Weight Management
Pentadecapeptide (BPC Analog)
Healing & Recovery
Pidotimod
Immune
Pinealon
Cognitive
PNC-27
Immune
Polymyxin B
Immune
Pralmorelin (GHRP-2)
Growth Hormone
Pramlintide
Weight Management
Prostamax
Hormone Support
PT-141 (Bremelanotide)
Sexual Health
Relaxin-2 (Serelaxin)
Healing & Recovery
Retatrutide
Weight Management
Selank
Cognitive
Semaglutide
Weight Management
Semax
Cognitive
Sermorelin
Growth Hormone
Setmelanotide
Weight Management
SLU-PP-332
Metabolic
SM-130686
Growth Hormone
Snap-8
Cosmetic
SS-31 (Elamipretide)
Mitochondrial
Substance P Antagonists
Healing & Recovery
Survodutide
Weight Management
SYN-AKE
Cosmetic
Tabimorelin
Growth Hormone
TB-500
Healing & Recovery
Tesamorelin
Growth Hormone
Testagen
Hormone Support
Thymalin
Immune
Thymopentin (TP-5)
Immune
Thymopoietin
Immune
Thymosin Alpha-1
Immune
Thymosin Beta-4
Healing & Recovery
Thymulin (FTS)
Immune
Thymulin Analog (PAT)
Healing & Recovery
Tirzepatide
Weight Management
Tripeptide-29
Cosmetic
Triptorelin
Hormone Support
Ularitide
Healing & Recovery
Urocortin
Healing & Recovery
Ventfort
Anti-Aging
Vesilute
Hormone Support
Vilon
Immune
VIP (Vasoactive Intestinal Peptide)
Healing & Recovery
Xenin-25
Metabolic
Ziconotide (Prialt)
Healing & Recovery
Total Peptides: 135
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Growth Hormone Protocol

MK-677 (Ibutamoren)Complete Dosing & Administration Guide

The oral growth hormone secretagogue that tricks your body into producing more GH — no needles required.

Dose Range

10-25mg

Frequency

Once daily

Route

Oral (capsule or liquid)

Cycle Length

8-12 weeks

Dosing

How much
do I take?

Timing

Best time to take

Morning (helps with daytime GH elevation) or early evening (does not significantly disrupt sleep despite oral bioavailability)

With food?

Can be taken with or without food. Food may slightly slow absorption but does not meaningfully reduce effectiveness.

If stacking

Once-daily dosing makes it easy to stack with other compounds. Take alongside morning protein and micronutrients for optimal recovery support.

Adjusting Your Dose

Increase if

  • +Tolerating 10 mg well after 3 weeks with minimal side effects
  • +Not seeing IGF-1 elevation after 2-3 weeks at current dose
  • +Comfortable appetite increase and no metabolic concerns

Decrease if

  • -Severe increased appetite affecting eating patterns or energy
  • -Joint pain, carpal tunnel, or fluid retention becomes bothersome
  • -Fasting glucose elevates significantly (> 20 mg/dL above baseline)

Signs of right dose

  • Energy and strength gains visible in 4-6 weeks
  • Improved sleep quality and recovery
  • Measurable increase in lean mass without excess fat gain

Dosing Calculator

Calculate Your Exact Dose

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Look for a number followed by 'mg' on the vial label (e.g., 5mg, 10mg)

Administration

How do I
use it?

Injection

Route

Oral administration — no injection required. Simply swallow the capsule with water or measure the liquid dose with a dropper.

Best sites

  • N/A — taken by mouth

Technique

  • 1.Step 1: Take one MK-677 capsule or measure the liquid dose (typically 1 mL for 25 mg) in the morning or early evening.
  • 2.Step 2: Swallow with a full glass of water. No need to chew or open the capsule.
  • 3.Step 3: Can be taken with or without food—choose what works best for your routine.
  • 4.Step 4: Maintain consistent timing (same time each day) to optimize GH secretion patterns.
  • 5.Step 5: No need for post-injection care, site rotation, or sterile technique—one of the major advantages of oral MK-677.

Storage

Before reconstitution

Store in original packaging in a cool, dry place (68-77°F / 20-25°C). Protect from direct sunlight and excess moisture. Do not expose to temperatures above 86°F (30°C).

After reconstitution

Capsules remain shelf-stable at room temperature. Liquid suspensions must be refrigerated (36-46°F / 2-8°C) and used within 30-60 days. Do not freeze.

Signs of degradation

  • Discoloration or visible particles in liquid formulations
  • Stale or off smell (may indicate oxidation)
  • Capsule cracking or moisture damage
  • Efficacy noticeably declining (less appetite stimulation or sleep improvement)

Sample Daily Schedule

Morning (7-9 AM)

25 mg (1 capsule) injection

Site: Oral — swallow with water

Timing with breakfast is flexible but consistent timing optimizes GH pulse patterns. Morning dose supports daytime energy and GH elevation.

Evening (6-8 PM, if preferred)

25 mg (1 capsule) injection

Site: Oral — swallow with water

Some users prefer evening dosing. MK-677 does not significantly disrupt sleep despite oral absorption. Choose the time you can maintain consistently.

Safety

Is it
safe?

Safety Profile

MK-677 has been studied in hundreds of humans over 2+ years and is generally well tolerated. Most side effects are mild and manageable, especially with lower starting doses. The lack of injection requirement makes it safer than injectable GH in terms of infection risk and sterility concerns. However, it is not FDA approved and should be viewed as a research compound.

Clinical evidence comes from Phase 1-2 trials in healthy older adults, Alzheimer's patients, and kidney disease patients. Long-term safety is supported by 2-year data. No Phase 3 pivotal trials have been completed, limiting approval pathway.

Common Side Effects

Experienced by some users

Increased appetite

Most users experience heightened hunger within the first 1-2 weeks. Appetite typically normalizes after 4-6 weeks as the body adapts. This occurs because MK-677 stimulates ghrelin signaling.

Management: Eat protein-rich meals to feel fuller longer. Stay hydrated. Consider taking MK-677 in the morning to manage hunger throughout the day. This side effect can be leveraged if you're trying to gain muscle.

Mild water retention or edema

Slight puffiness in hands, feet, or face may appear in weeks 2-4. This is usually mild and resolves with continued use. Related to increased IGF-1 and growth signaling.

Management: Increase potassium intake (bananas, sweet potatoes). Reduce sodium if bloating is bothersome. Compression socks may help with ankle swelling. Mild edema is not dangerous but can be uncomfortable.

Elevated fasting glucose

Fasting blood sugar may increase by 5-15 mg/dL, reflecting mild insulin resistance that typically develops with GH elevation. This is reversible and usually mild in healthy individuals.

Management: Monitor fasting glucose every 4 weeks. Maintain regular exercise and limit refined carbohydrates. If glucose rises > 30 mg/dL or exceeds 130 mg/dL, discontinue and consult a doctor.

Less Common

  • Joint or muscle pain
  • Carpal tunnel syndrome or nerve compression symptoms
  • Mild nausea or digestive upset

These typically resolve with continued use or dose adjustment.

Stop and Seek Help If

  • ×Fasting glucose becomes elevated and uncontrollable (> 130 mg/dL despite diet changes)
  • ×Severe allergic reaction such as itching, swelling, or breathing difficulty
  • ×Joint pain or carpal tunnel symptoms worsen and persist beyond 3 weeks
  • ×Blood pressure elevation becomes problematic (systolic > 150 mmHg)
  • ×Suspicion of liver or kidney dysfunction (yellowing of skin, dark urine)
  • ×Planned surgery or medical procedure (discontinue 2 weeks before)

This list is for informational purposes and does not replace medical advice. Stop use and consult a healthcare provider immediately if you experience any concerning symptoms. Individual responses vary, and a doctor can help determine if MK-677 is appropriate for your health profile.

Interactions

With other peptides

  • Synergistic effect — both stimulate GH release. Stacking may amplify GH and IGF-1 elevation but increases side effect risk.
  • Complementary anabolic effects. MK-677 enhances protein synthesis; testosterone boosts muscle growth. Combination is effective but requires monitoring.

With medications

  • !Insulin or insulin secretagogues (metformin, sulfonylureas) - Risk of hypoglycemia. MK-677 raises blood glucose; combining with insulin-lowering drugs can cause dangerously low blood sugar.
  • Thyroid medications (levothyroxine) - MK-677 may increase metabolic rate slightly. Thyroid dose may need adjustment. Monitor TSH every 4-6 weeks.
  • Blood pressure medications - MK-677 may mildly elevate blood pressure. ACE inhibitors or ARBs may need dose adjustment. Monitor BP regularly.
  • Estrogen or hormonal birth control - Theoretical risk of interaction via hormone signaling. Use with medical supervision if taking hormonal medications.

With supplements

  • Creatine monohydrate - Synergistic for muscle gains. No safety concerns. Combination is common among athletes.
  • Whey protein or BCAAs - Complementary for muscle protein synthesis. MK-677 boosts anabolism; protein provides building blocks. Safe and synergistic.
  • Melatonin or sleep supplements - MK-677 enhances sleep; melatonin adds to this. Safe combination for better recovery. No contraindications.

Want the Full Picture?

View the complete MK-677 (Ibutamoren) research profile including mechanism of action, clinical studies, effectiveness timeline, and FAQ.

View Full MK-677 (Ibutamoren) Profile

Medical Disclaimer

MK-677 (Ibutamoren) is an investigational research compound not approved by the FDA for human therapeutic use. This information is for educational purposes only and should not be construed as medical advice. Always consult with a qualified healthcare provider before starting any new supplement or treatment protocol.

Last updated: Feb 8, 2026

Peptide ProMK-677 (Ibutamoren) Protocol — Complete Dosing &… | Peptide Initiative