Strength
$230
$12 per mg
Tirzepatide Pen 20mg
$230
Overview
What it is
Tirzepatide is a once-weekly injection for weight loss. It works two appetite signals rather than one, GLP-1 and GIP, which is what makes it second-generation and why its trial average runs well above Semaglutide's.
- Who it is for: people who want more than a first-generation GLP, whether that is where you start or where you go when Semaglutide has done what it can.
- Participants in the SURMOUNT-1 trial averaged about 21% weight loss.
- This is the molecule sold as Mounjaro and Zepbound.
- In the box
- Peptide pen, pen needles, and alcohol wipes.
- Ready to use
- No reconstitution. The medication is already in the pen at its final strength, so there is nothing to mix and no vial or syringe. Attach a needle, set your dose and inject, just like a name-brand pen. How it works
- Variable dose
- Set any dose your schedule calls for, from your smallest starting dose up to 15 mg, all from this one pen. Name-brand pens deliver a single preset dose. What that means
- Lab tested ↗
- Made in Canada
- Free shipping over $100
- Discreet packaging
- Supplies included
- Ready to use, no mixing
Dosing
How dosing works
This is the standard Tirzepatide titration, shared for reference and built around adults living with obesity. The dose rises about every four weeks so your body can adjust, and you slow down or hold if side effects show up.
Reference titration
Weekly subcutaneous injection
- Weeks 1-42.5 mg
- Weeks 5-85 mg
- Weeks 9-127.5 mg
- Weeks 13-1610 mg
- Weeks 17-2012.5 mg
- Week 21+15 mgMax
The highest dose tends to deliver the most weight loss, but where you settle is personal, shaped by your weight data, appetite suppression, side effects, and other health markers. Never assume your dose; set it with Deer, and check in about any concerns, especially side effects.
Evidence
How the GLP generations compare
Average weight loss in the landmark trials
- Semaglutide~15% · STEP-1
- Tirzepatide · this product~21% · SURMOUNT-1
- Retatrutide~28% · TRIUMPH-1
Trial averages from published studies, not a prediction of individual results.
How long a pen lasts
Work out your supply and your saving
Set the weekly dose you are on. A bigger pen is not a bigger expense, it is more weeks of treatment, and the price per month falls as the pens get bigger.
10 mg weekly
20mg $230$11.50 per mg
$460 per month
2 weeks60mg $350$5.83 per mg
$233.33 per month
1 month, 2 weeksSave 10% vs Mounjaro®60mg × 3 $759$4.22 per mg
$168.67 per month
4 months, 2 weeksSave 35% vs Mounjaro®
The same 40 mg a month, against Mounjaro® at a pharmacy
35% less than Mounjaro® for the same milligrams, a saving of $90.92 every month.
The Mounjaro® price is $389.38 for a four-week supply at 15 mg weekly, which is 60 mg of medication, at Costco Pharmacy in Ontario without insurance. Mounjaro® is a registered trademark of Eli Lilly, which is not affiliated with Deer. Deer products are sold for research purposes only and are not approved by Health Canada.
Multi-pack savings
The same pens, cheaper by the pack. Each row compares a pack against buying that many pens one at a time, at your own prices.
| Pack | Per pen | You pay | You save |
|---|---|---|---|
| 60mg × 2 | $290 | $580 | $120 (17%) |
| 60mg × 3 | $253 | $759 | $291 (28%) |
Savings are measured against the single-pen price you pay, so any discount on your account moves both sides of the comparison.
Questions
Common questions
How do the weight-loss GLP options differ?
Semaglutide is a GLP-1 option. Tirzepatide targets GLP-1 and GIP pathways. Retatrutide is a third-generation option designed around GLP-1, GIP, and glucagon pathways.
Do I need to mix or reconstitute anything?
No. Every Deer injectable arrives ready to use, the same way name-brand pens like Ozempic® and Mounjaro® do. The medication is already in the pen at its final strength, so there is no powder to dissolve, no bacteriostatic water to add, no vial to draw from and no syringe to measure. Attach a pen needle, set your dose and inject. The needles and alcohol wipes you need are in the box.
What is a variable-dose pen?
A variable-dose pen lets you set how much you inject, rather than the pen deciding for you. Every Deer pen is one: you can dial any dose on your schedule, from the smallest starting dose up to the highest dose the schedule reaches, or the strength of the pen if that is lower, so a single pen covers your whole titration. The name-brand pens, Ozempic® and Mounjaro®, are the opposite. They are designed to deliver only one preset dose, so every time your dose changes you need a different pen. Follow the instructions included with your pen to set the dose, and the dosing schedule on the product page for what that dose should be each week.
What comes with weight-loss peptide pens?
Peptide pens include pen needles, alcohol wipes, and cold packs added as a precaution. The peptides are stable at room temperature, and the cold pack is an added safeguard in transit.
My package arrived warm. Is the product still okay?
Almost always, yes. A warm package does not mean the product has been compromised. These peptides are stable at room temperature and are made to tolerate the warmth and temperature swings that are normal in shipping. In fact, heat-study testing has shown they stay stable, sterile, and fully potent even after extreme heat, about 54°C (130°F), for five days on top of a week at room temperature. The cold pack is included to buffer temperature swings in transit, not to keep your order cold on arrival, so a melted or room-temperature cold pack is common and not a problem. Refrigerate the pens as soon as your order arrives, then give the liquid a quick look before use: the GLP medications (Semaglutide, Tirzepatide, and Retatrutide) should be completely clear, and KLOW should be blue. Do not use any of them if you notice cloudiness, floating particles, a color change, or a cracked pen or broken seal. If anything looks off, email info@deer.supply and we will help.
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