
Strength
$225
$23 per mg
Peptide pen, pen needles, and alcohol wipes.
Independently tested · View report ↗
- Free shipping over $300
- Discreet packaging
- Supplies included
Retatrutide 10mg
$225

Overview
What it is
A first full-size Retatrutide option for customers exploring Deer’s most advanced weight-loss GLP.
- Retatrutide is a triple-agonist peptide designed around GLP-1, GIP, and glucagon receptor pathways.
- These pathways are associated with appetite regulation, blood-sugar support, satiety, and energy expenditure.
- This size steps up from the 5mg starter, with enough product to settle into the published titration.
In the boxPeptide pen, pen needles, and alcohol wipes.
Dosing
How dosing works
Retatrutide is newer, so this is the titration Deer works from, built for adults living with obesity. The dose rises by 2 mg 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 mg
- Weeks 5-84 mg
- Weeks 9-126 mg
- Weeks 13-168 mg
- Weeks 17-2010 mg
- Week 21+12 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~21% · SURMOUNT-1
- Retatrutide · this product~28% · TRIUMPH-1
Trial averages from published studies, not a prediction of individual results.
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.
What is your refund policy?
Our flagship Retatrutide product includes an eligibility-based money-back policy. Track your weight at least 3 times per week, and if you do not see progress you can return your medication for a full refund. Eligibility and individual results depend on health factors, dosing, and adherence.
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.
Reviews
Pairs well
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First order offer
50% off your first month of Retatrutide
Complete the health questionnaire and Deer will review whether the intro Retatrutide offer is a fit. Eligible orders get a money-back refund policy, and a $25 shipping fee applies.
Eligibility and individual results depend on health factors, dosing, and adherence.
Check eligibility