Pre-filled research pens
Precision,
Precision,
kept cold.
Every Alluvi pen is pre-filled, tested lot by lot and shipped in a cold chain.
The range
View all Six pre-filled pens.
Cold chain
Stored cold.
Stored cold.
Shipped cold.
From our store to your door, every pen stays between 2 and 8 °C. Insulated packaging, tracked delivery, dispatched the same day.
- Storage2–8 °C, monitored
- PackagingInsulated, with cold packs
- DispatchSame day before 1pm
- DeliveryTracked, 24–48h
Lab reports
Every lot,
Every lot,
independently tested.
Each production lot is tested by an independent lab for purity and identity. The report is published on the product page under the lot number printed on the pen.
Browse lab reports● PASSED
99.2%
HPLC purity · R3TA 40 mg pen
- Lot
- AL-2611
- Method
- HPLC-MS
- Identity
- Confirmed
- Tested
- 14 Oct 2026
Questions
Good to know.
How are the pens shipped?
Packed at 2–8 °C in insulated packaging with cold packs and sent by tracked delivery. Orders placed before 1pm leave the same day.
Where can I find the lab report?
Every product page lists the current lot and its full lab report. The lot number is printed on the pen and on the box.
How should the pens be stored?
Keep them refrigerated between 2 and 8 °C and away from direct light.
Which payment methods do you accept?
All major debit and credit cards through our secure checkout.