
RT-3 10mg
- Strength
- 10 mg per vial
- Pack
- 1 vial
- Total
- 10 mg
- Per unit
- $6.00 per mg
- Rating
- No reviews yet
$60.00
$90.00
$145.00

Batch COA on requestPage checked Oct 2026
PeptidesIn stock
Reta (triple agonist) · 1 vial
Buy RT-3 10mg (RT-3 Research Peptide) online in Canada. High-purity research peptide for specialized peptide studies and pathway investigation applications. Order from SteroidsCanada.is – 98%+ HPLC-tested purity, discreet packaging, and fast Canadian delivery.
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Needed with this: Bacteriostatic waterPowder vials are mixed with bacteriostatic water before use. $60Add🛡 Delivery guaranteed: lost or seized, we reship your order free. Delivery policy
You will need
EasyTouch Insulin Syringes 30G U-100 (bag of 10)$15 · 1 ml U-100 barrels for under-the-skin dosesAddIt ships by Canada Post Xpresspost with tracking.
01The basics
RT-3 is Reta, an investigational weight-loss drug that acts on three hormone pathways at once: GLP-1, GIP and glucagon. Each vial contains 10 mg of freeze-dried powder for mixing with bacteriostatic water, and it’s injected once a week.
In clinical studies, Reta produced larger average weight loss than current GLP-1 medicines, along with improvements in blood sugar, liver fat and cardiovascular markers. It’s still being tested, though, and hasn’t been approved by Health Canada or the FDA, so its long-term safety isn’t known yet. Here’s what the research shows so far.
02How it works
Reta is a single molecule that activates three receptors, which is why it’s called a “triple agonist”:
A half-life of about 6 days keeps levels steady with one injection a week.
03Half-life
A half-life of about 6 days means half of what is in the body is gone after that time, then half of the rest, and so on. For an injected peptide it reflects how quickly the body breaks the chain down and clears it.
A textbook model built from the half-life alone. Real numbers vary from person to person.
04Clinical reference
Clinical reference. Reta has no approved dose. In the published phase 2 obesity trial, weekly doses went up to 12 mg, with higher-dose groups starting at 2 mg and increasing every 4 weeks. The 12 mg group lost about 24% of body weight on average after 48 weeks.
Talk to a doctor before use.
Mixing math. Adding 1 ml of bacteriostatic water to the 10 mg vial gives 10 mg per ml, so every 10 units on a U-100 syringe is 1 mg:
Label the vial with its concentration so every dose is measured the same way.
05Measure it
Type in the amount your prescriber gave you, or the one you are working from, and this turns it into what to draw up or count out from this exact product. It only does the arithmetic; it never suggests an amount.
Result
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Enter your amount
Arithmetic from the strength printed on this product. Always check your own vial or bottle, follow your prescriber, and ask a pharmacist to show you how to measure if you are unsure.
06Injection sites
RT-3 10mg arrives as a freeze-dried powder. After it is mixed with bacteriostatic water it is normally injected under the skin, into the fat layer, with a short insulin needle.
Why it is used. The most fat to work with, easy to see, and the steadiest absorption. Weekly pen medicines list it first.
Careful. Move each injection at least 2–3 cm from the last to avoid firm fatty lumps (lipohypertrophy).
Belly injections: distance from the navelMassachusetts General Hospital, Patient educationSection 0:00–0:44 of their video · YouTube
Why it is used. Easy to reach while seated, and a handy second area to rotate with the belly.
Careful. It can absorb a little more slowly than the belly; hard leg training straight afterwards can speed it up.
Thigh injections: where the safe band isMassachusetts General Hospital, Patient educationSection 0:43–1:06 of their video · YouTube
Why it is used. A third area to rotate through, so every spot gets a longer rest.
Careful. Hard to pinch and reach with one hand; most people need a helper.
Back of the arm and moving between spotsMassachusetts General Hospital, Patient educationSection 1:05–1:46 of their video · YouTube
Route for RT-3 10mgUnder the skin (subQ)
General reference from standard nursing injection guidance, not medical advice. Spreading redness, heat, swelling, pus, fever, numbness or pain that keeps getting worse needs a doctor. A pharmacist or nurse can show you the technique in person.
07Brand vs brand
The same compound from another maker. What changes is the pack, the strength per tablet or ml, and the price per unit.

$60.00

$145.00
Add to cart08Risks
Trial side effects resemble other GLP-1 drugs and are most common when the dose goes up.
Nausea, vomiting, diarrhea and constipation were the most frequent, mostly mild to moderate and fading over time.
Resting heart rate rose with dose in trials. Check your pulse and stop if you get palpitations.
As with other incretin drugs, severe stomach pain spreading to the back, or upper-right pain with fever or yellow skin, needs urgent care.
Vomiting or diarrhea can dehydrate you and strain your kidneys; drink plenty of fluids.
Large, long-term trials aren’t finished, so uncommon risks may not be known yet.
Or a family member have had medullary thyroid cancer or MEN 2, you’ve had pancreatitis, have type 1 diabetes, are pregnant, breastfeeding or planning pregnancy, or are under 18.
09Interactions
Medicines and substances that change how this product behaves, or that it changes. Show this list to your pharmacist along with everything else you take.
Reta is investigational. The interactions below are the ones expected for its drug class.
Gliclazide, glyburide and insulin together with a GLP-1 medicine cause low blood sugar more often; doctors usually lower those doses first.
Stomach emptying slows, which can change how warfarin, levothyroxine and other narrow-range tablets are absorbed. INR or thyroid levels may need an extra check.
Never use two drugs from this class at the same time (semaglutide, liraglutide, dulaglutide, TZ5, Reta).
Adds to the risk of low blood sugar and of pancreatitis.
10Bloodwork
Test before you start, then about every 3 months.
11Support
12Pairs well with
13Delivery
Everything ships from inside Canada, so there is no border, no customs and no currency conversion.
14Questions
Yes. RT-3 is a vial of Reta, the triple GLP-1, GIP and glucagon agonist.
Semaglutide acts on GLP-1, and TZ5 on GLP-1 and GIP. Reta adds glucagon, which increases energy use and fat burning in the liver.
Five weeks at 2 mg a week, two and a half at 4 mg, or just over one at 8 mg.
Orders ship by Canada Post Xpresspost, with tracking within 72 hours of payment, with tracking.
Reta is still in clinical trials and isn’t approved by Health Canada. It isn’t a controlled substance.
In a plain, unbranded box with no product names on the outside.
15Research
The studies and guidelines the clinical and safety information above leans on. Every link opens the record on PubMed.
N Engl J Med2023Jastreboff AM et al.PMID 37366315
Cell Metab2022Coskun T et al.PMID 35985340
16Reviews
No reviews for this product yet. After an order is delivered we email the customer a link to review it.
Educational information only, not medical advice. Talk to a doctor or pharmacist before using any anabolic steroid, hormone, peptide or prescription drug. Adults 18+ only. Sold and shipped from Canada by SteroidsCanada.is.
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