Cagrilintide is a long-acting amylin analogue modified with fatty acid acylation, administered subcutaneously with a half-life of approximately 7 days, supporting once-weekly dosing. Its molecular skeleton mimics endogenous amylin (IAPP), but incorporates anti-aggregation amino acid substitutions and cysteine cyclization, overcoming the tendency of natural amylin to form cytotoxic amyloid fibrils.
Core Mechanism:
Cagrilintide binds with high affinity to multiple subtypes of the amylin receptor while moderately activating the calcitonin receptor. After binding to the receptor, it initiates downstream signaling pathways, acting on central appetite regulation areas to prolong satiety and reduce food cravings; and on peripheral tissues to delay gastric emptying and synergistically inhibit postprandial glucagon release, thus smoothly regulating postprandial metabolic levels. The long-acting modified structure enhances the peptide chain's resistance to enzymatic degradation, providing a longer window of action in experimental systems, making it suitable for constructing sustained metabolic models.
Applicable Research Scenarios: Research on energy balance and eating behavior regulation mechanisms; in vitro models of glucose and lipid metabolism and postprandial hormone secretion; verification of Amylin receptor pathway signal transduction; synergistic effect experiments of peptide-based intervention (combined with GLP-1 peptide); exploration of obesity-related metabolic disorders mechanisms; screening control experiments of novel metabolic regulatory lead peptides.
Storage Conditions:
Freeze-dried cake: Best stored sealed at -20℃, protected from light, dry and airtight (36 months). Short-term working storage at 2–8℃ can last up to 24 months. Avoid repeated freeze-thaw cycles. -80℃ is suitable for archiving for >24 months.
Reconstitution: Slowly push antibacterial/sterile water along the wall, do not pour over the cake or vortex. Gently roll for 5–10 minutes (acylated peptides dissolve slowly, do not rush), until clear and colorless. Store at 2–8℃, protected from light. Use within 21–30 days. Never freeze the reconstituted solution; freeze-thaw cycles will tear Cys2–Cys7 disulfides, cause agglomeration and inactivation. Discard immediately if cloudy/turbid/discolored.
Use low-absorption tubes to dispense single-use amounts; do not store in regular polypropylene bottles for long periods.
Important Notes
This bottle is the metabolic peptide I discussed earlier that is "closest to legalization but hasn't crossed the threshold yet"-its NDA is submitted earlier than Retatrutide's, but as of August 2026, you won't be able to legally obtain a single-drug prescription or CagriSema from pharmacies/clinics in China. The "Cagglitazone 5mg lyophilized" sold in the group is, like Semax/BPC, a grey-market research-grade product; you are responsible for its purity and sterility.
Side effects are similar to GLP-1 inhibitors but from different sources: nausea/vomiting/diarrhea/constipation during dose escalation, redness and itching at the injection site (incidence slightly higher than with sematabolite monotherapy, possibly related to local C20 acylation reactions); rare but noteworthy side effects include persistent severe abdominal pain radiating to the back (suspected pancreatitis), gallbladder pain, and tachycardia.
Contraindications are similar to Tirz: personal/family history of MTC, MEN2, type 1 diabetes, pregnancy/nursing, and children under 18 should not use this medication; when used in combination with insulin/sulfonylurea, the latter must be downregulated to prevent hypoglycemia.
WADA strictly enforces the guidelines; avoid using this medication for fitness/powerlifting/triathlon, regardless of dosage.
Dosage should not be arbitrarily calculated based on mouse dosage: clinical escalation starts at 0.3mg per week and increases to 2.4mg every 4 weeks; unofficial posts suggesting "starting at 1mg" are playing with the last receptor region.
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