Cholecystokinin-8 vs Lixisenatide
Head-to-head comparison of Cholecystokinin-8 (Cholecystokinin (sulfated C-terminal octapeptide, CCK-8)) and Lixisenatide (Exendin-4-derived GLP-1 receptor agonist) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Cholecystokinin-8 | Lixisenatide |
|---|---|---|
| Category | Endocrine Peptides | Weight Management |
| Full Name | Cholecystokinin (sulfated C-terminal octapeptide, CCK-8) | Exendin-4-derived GLP-1 receptor agonist |
| Molecular Weight | 1143.2 Da | 4858 Da |
| Half-Life | 1-2 min | 2-4 hours |
| Amino Acids | DY(SO3H)MGWMDF-NH2 | 44 |
| Typical Dose | physiologic low-picomolar-nanomolar range|research-dependent | 10-20 mcg daily |
| Route | endogenous secretion|research IV/SC | Subcutaneous |
| Purity | ≥98% | ≥98% |
| Studies Count | 97 | 400 |
| Research Status | Endogenous | Approved |
Cholecystokinin-8 Benefits
- ✓gallbladder contraction
- ✓pancreatic enzyme release
- ✓satiety signaling
Lixisenatide Benefits
- ✓postprandial glucose control
- ✓modest weight loss
- ✓appetite reduction
- ✓short-acting option
Cholecystokinin-8 Dosing
physiologic secretion|research-dependent
Lixisenatide Dosing
10 mcg SC daily for 14 days|Increase to 20 mcg daily|Inject before the first meal of the day
Cholecystokinin-8 Side Effects
- ⚠abdominal cramping
- ⚠nausea
- ⚠biliary contraction
Lixisenatide Side Effects
- ⚠nausea
- ⚠vomiting
- ⚠hypoglycemia when combined with insulin
Research Overview
Cholecystokinin-8
CCK-8 is a canonical gut hormone fragment with extensive documentation in digestive physiology and appetite control. Sulfation of the tyrosine residue is important for high-affinity receptor activity.
Lixisenatide
Lixisenatide produces small but measurable weight loss in diabetes trials while improving postprandial glucose excursions. Its shorter half-life makes it a useful reference compound for first-generation incretin mimetics.
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