Cartalax vs MK-677 (Ibutamoren)
Side-by-side comparison of key properties, dosing, and research.
Anti-Aging & Longevity
CartalaxGrowth Hormone Peptides
MK-677 (Ibutamoren)- Summary
- Cartalax is a tetrapeptide bioregulator (Ala-Glu-Asp-Pro) developed by Professor Vladimir Khavinson for cartilage and connective tissue. It is tissue-specific for chondrocytes and cartilaginous structures, supporting cartilage matrix synthesis, slowing degenerative changes, and promoting joint longevity. It is used in the context of osteoarthritis, joint aging, and athletic cartilage preservation.
- MK-677 (Ibutamoren) is an orally active, non-peptide ghrelin receptor agonist that increases growth hormone and IGF-1 levels. Unlike injectable GHRPs, it can be taken orally and has a 24-hour half-life, making it convenient for sustained GH optimization.
- Half-Life
- Short (minutes); gene-regulatory effects are sustained
- 24 hours
- Admin Route
- SubQ, Oral
- Oral
- Research
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- Typical Dose
- 10 mg per day
- 10–25 mg
- Frequency
- Daily for 10–30 days
- Once daily
- Key Benefits
- Supports cartilage matrix synthesis and maintenance
- May slow progression of osteoarthritic cartilage degradation
- Reduces chondrocyte apoptosis
- Promotes joint longevity in aging and high-impact sports
- Anti-aging effects on connective tissue
- Complementary to BPC-157 and TB-500 in joint recovery protocols
- Well tolerated in available human and animal research
- Increases lean muscle mass
- Enhances bone density
- Improves sleep quality and REM sleep
- Accelerates recovery from training
- Increases appetite
- May improve skin elasticity and appearance
- Supports fat loss while maintaining muscle
- Oral administration — no injections required
- 24-hour half-life allows once-daily dosing
- Side Effects
- Generally well tolerated
- Mild injection site reactions
- No significant adverse events reported at standard doses
- Increased appetite (significant in some users)
- Water retention and puffiness
- Elevated blood glucose / insulin resistance (monitor in diabetics)
- Lethargy initially
- +2 more
- Stacks With
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