MK-677 Protocol
Dosing & Research
Last Updated: September 4, 2026
Chemical Identity
- Amino Acid Sequence
- N/A - non-peptide small molecule
- Molecular Formula
- C27H36N4O5S
- Molecular Weight
- 528.66 g/mol
- CAS Number
- 159634-47-6
GH/IGF-1 axis studies, Sleep and recovery research, Appetite signaling, Body-composition research
Half-Life
Approximately 24 Hours
Administration
Oral
Frequency
1x Daily
How It Works
- GH/IGF-1 axis studies
- Sleep and recovery research
- Appetite signaling
- Body-composition research
Dosing Structure
Dose
5–25mg oral daily
Frequency
1x Daily
Notes
Break: Equal cycle length (8-12 weeks minimum). Research shows up to 18 months safety.
Example Protocols
Dose: 5–25mg oral daily
Frequency: 1x Daily
Duration: 8-12 weeks
Off Period: Not listed
Find Research Grade MK-677
Recommended vendors for sourcing research-grade material. PeptaBase does not sell peptides directly.
Vendor One Research Labs
COA VerifiedThird-party COA-verified research peptides with published batch testing.
Source Coming SoonVendor Two Sciences
Purity TestedUS-based research compound supplier with independent purity testing.
Source Coming SoonVendor Three Peptide Co.
Bulk research peptide sourcing with batch-level documentation.
Source Coming SoonProtocol Notes
•
Break: Equal cycle length (8-12 weeks minimum).
•
Research shows up to 18 months safety.
Research & Studies
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