MK-677 (Ibutamoren) vs SNAP-8
Side-by-side comparison of key properties, dosing, and research.
Growth Hormone Peptides
MK-677 (Ibutamoren)Skin & Cosmetic
SNAP-8- Summary
- 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.
- SNAP-8 is a synthetic octapeptide cosmetic ingredient that reduces the depth of expression lines and wrinkles by competitively inhibiting the SNARE complex involved in acetylcholine release at neuromuscular junctions, providing a topical 'Botox-like' effect.
- Half-Life
- 24 hours
- N/A — topical application; local effect duration depends on formulation
- Admin Route
- Oral
- Topical
- Research
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- Typical Dose
- 10–25 mg
- 3–10% concentration in formulation
- Frequency
- Once daily
- 1–2x daily
- Key Benefits
- 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
- Reduces depth of dynamic expression wrinkles
- Smooths forehead lines, crow's feet, glabellar lines
- Non-invasive topical Botox alternative
- Can be incorporated into serums, creams, eye contour products
- Reduces muscle contraction without paralysis
- Improves skin texture and firmness over time
- Complements other anti-aging peptides (Argireline, Matrixyl)
- Side Effects
- Increased appetite (significant in some users)
- Water retention and puffiness
- Elevated blood glucose / insulin resistance (monitor in diabetics)
- Lethargy initially
- +2 more
- Generally excellent tolerability
- Rare: mild redness in sensitive individuals
- Not suitable for injection (topical use only)
- Stacks With
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