Retatrutide Starter Kit

The Retatrutide Starter Kit ships as a single kit. All component peptides, bonus vials, and printed protocols are packed in one tamper-evident, moisture-barrier parcel. You receive one tracked shipment with a single COA packet covering every batch in the kit.

Yes. Every bonus vial in the Retatrutide Starter Kit is Janoshik-tested research-grade peptide — identical to what ships in single-SKU purchases. The "bonus" label reflects that these are not billed separately, not that they are a lesser grade.

Yes. Stack subscriptions ship quarterly at a 10% discount off the sale price. Cancel or skip any cycle with one click in your research dashboard.

We replace the failed vial free and you keep the rest of the kit. Purity replacement applies per-vial — not per-stack — so a single failure does not force a full re-ship.