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Deer Supply & Research

Weight management · recovery · longevity

Lose up to 28% of your body weight with Retatrutide, the next evolution in weight loss medicine. Available exclusively at Deer.

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The 28% figure is the average total body-weight reduction at the highest retatrutide dose in the 48-week phase 2 TRIUMPH-1 trial. Trial averages, not a prediction: individual results vary and nothing here is a guarantee of any outcome. This is not medical advice. Review the current trial literature and speak with a clinician before starting treatment.

Made in CanadaShips across CanadaDiscreet packagingSupplies includedTrusted by real Canadians

Weight Loss

How they compare

Maximum weight loss

Retatrutide

5.0 · 1

Third-generation GLP option targeting GLP-1, GIP, and glucagon pathways tied to appetite, glucose control, and energy use.

5mg · 10mg · 30mg · 60mg

From $150

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Moderate weight loss

Tirzepatide

Mounjaro, Zepbound

Mid-size Tirzepatide option for continuing GLP plans, with dual-receptor support for fullness and cravings.

20mg · 60mg

From $230

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Basic weight loss

Semaglutide

Ozempic, Wegovy

5.0 · 1

GLP-1 medication associated with Ozempic and Wegovy; used for fullness, appetite, and blood-sugar support.

5mg · 10mg · 20mg

From $90

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Featured savings

Best value

Retatrutide 120mg for $825

Two 60mg pens in one pack. Bought separately they run $850, so the pack saves you $25, and it covers 10 weeks at the 12mg maximum dose.

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Multi-month savings

Tirzepatide 120mg for $580

The equivalent to 2 refills of Mounjaro 15mg 4-week supply, with supplies included.

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First order offer

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.

Check eligibility

Weight Calculator

Enter your weight and watch a live 3D preview of your starting body. Open the full calculator to project what each medication's trial average could add up to over 18 months. An estimate to explore, never a promise.

Trial averages, not a prediction

Your body now

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A rough 3D read from your weight (drag to rotate). The full calculator adds your height, age, medication, and goal.

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Real life

The point was never the number. It is the morning run that feels lighter, the clothes that fit again, the plans you stop cancelling. Real Deer customers have shared how it went for them.

Read their stories

Loved by customers

5.0from 3 reviews
Read all reviews
Instructions are very straightforward. I saw results within a month of using Semaglutide and have been losing pounds with the passing months. I can still eat the foods I want, but now there are no strong cravings or hunger pangs pushing me to eat my next meal sooner. I’m saving on groceries!
Kevin G. · Markham, ON
My experience with Deer Research has been exceptional from day one. From the very first contact, I was guided by a true professional who answered all my questions and tailored the perfect solution for my needs. They offer competitive pricing, transparent communication, and top-tier customer service. Their products actually deliver real results instead of the gimmicks you find elsewhere. The ongoing coaching and support are incredibly responsive, with questions answered in a matter of minutes. I have nothing but positive things to say and am incredibly happy with my progress. Thank you, Deer Research!
Walter M. · Quebec City, QC

Recovery & Enhancement

Full catalog

Recovery & performance

HGH

30-day beginner human growth hormone package for recovery, body-composition, and training-support goals.

60 IU · 120 IU · 240 IU

From $300

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Injury recovery

KLOW

30-day beginner recovery peptide package for a simple, structured recovery-support option.

80mg · 160mg · 240mg

1 to 3 months of supply

From $240

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Metabolic support

SLU-PP-332

Research compound studied for exercise-mimetic and metabolic signaling; ordered for performance and recovery protocols.

5mg

From $200

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Discreet by default

Every order ships across Canada in plain, unmarked packaging with tracking. Payment is a simple Interac e-Transfer, and your order page updates the moment we confirm it.

How shipping works