C-peptide vs FS315
Head-to-head comparison of C-peptide (Connecting peptide (C-peptide)) and FS315 (Follistatin-315 (FS315)) — benefits, dosing, side effects, research data, and where to buy.
| Property | C-peptide | FS315 |
|---|---|---|
| Category | Pain Management | Muscle & Performance |
| Full Name | Connecting peptide (C-peptide) | Follistatin-315 (FS315) |
| Molecular Weight | 3020.3 Da | ~40 kDa |
| Half-Life | ~20-30 min | N/A; depends on construct/delivery |
| Amino Acids | 31 | 315 |
| Typical Dose | no approved analgesic dose|research-only | Research-only; no standardized human dose |
| Route | IV|subQ | Intramuscular / research expression systems |
| Purity | ≥98% | ≥98% |
| Studies Count | 46 | 95 |
| Research Status | Pre-clinical | Pre-clinical |
C-peptide Benefits
- ✓diabetic neuropathy research
- ✓nerve function support
- ✓possible analgesic effect
FS315 Benefits
- ✓activin neutralization
- ✓muscle growth signaling
- ✓anti-catabolic support
- ✓tissue repair modulation
C-peptide Dosing
0.5-1.0 mg/day in research|route varies by protocol
FS315 Dosing
Research-only recombinant/protein-expression studies|no standardized clinical dose|route varies by platform
C-peptide Side Effects
- ⚠injection-site reactions
- ⚠unknown long-term safety
FS315 Side Effects
- ⚠off-target endocrine effects
- ⚠immune response risk
- ⚠fluid balance changes
Research Overview
C-peptide
C-peptide is not an approved analgesic, but multiple studies have examined its effects on peripheral nerve blood flow and neuropathy outcomes. The strongest relevance is in diabetic neuropathic pain rather than migraine.
FS315
Follistatin-315 is a key reference isoform in studies of muscle anabolism and reproductive/endocrine biology. In muscle research, it is relevant because it suppresses activin and can indirectly blunt myostatin pathway output.
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