Reta 10mg
- Strength
- 10 mg per vial
- Pack
- 1 vial
- Total
- 10 mg
- Per unit
- $14.50 per mg
- Rating
- 4.0 ★ (1)
$145.00
We accepte-Transfer
Free ship$300+
Rating4.9★ · 767TrackingWithin 72 h
Lost / seizedReship freeSince2003
Batch COA on requestPage checked Oct 2026
PeptidesIn stock
Reta 10mg
Reta (triple agonist) · 1 vial
4.01 review$145.00CAD$14.50 per mg
Buy Reta 10mg (Triple Agonist) online in Canada. Next-generation triple receptor agonist targeting GIP, GLP-1, and glucagon for advanced metabolic optimization. Order from SteroidsCanada.is – 98%+ HPLC-tested purity, discreet packaging, and fast Canadian delivery.
Free shipping on orders over $300 CAD. Add $155 more with this item to qualify.
Needed with this: Bacteriostatic waterPowder vials are mixed with bacteriostatic water before use. $60AddDelivery guaranteed: lost or seized, we reship your order free. Delivery policy
BUY 3+ SAVE 5% · 5+ SAVE 10%
You will need
EasyTouch Insulin Syringes 30G U-100 (bag of 10)$15 · 1 ml U-100 barrels for under-the-skin dosesAddAlso in a kit · 10% off
Reta & Tesamorelin Kit5 items · $351.90See kitBody Recomposition Peptide Kit11 items · $1,097.10See kitIt ships by Canada Post Xpresspost with tracking.
- Ships from inside Canada
- Plain, unbranded box
- Pay by Interac e-Transfer
- Lost or seized: reshipped free
Spec sheetReta (triple agonist)RETA-10MG-V2
- Compound
- Reta (triple agonist)
- Strength
- 10 mg per vial
- Pack
- 1 vial
- Total per order
- 10 mg
- Form
- Lyophilized powder (vial)
- Half-life
- About 6 days
- Value
- $14.50 per mg
01The basics
What Reta 10mg is
Reta is an experimental weight-loss peptide from Eli Lilly. Each vial contains 10 mg of freeze-dried powder that’s mixed with bacteriostatic water before use. Reta is the first “triple agonist”: it acts on GLP-1 (like semaglutide), GIP (like TZ5) and glucagon receptors at once.
Early trials produced some of the largest weight losses seen with any medication. But Reta is still in clinical trials and hasn’t been approved by Health Canada or any other regulator, so long-term safety isn’t known. Here’s what the published research shows.
02How it works
How it works
Reta combines three hormone signals in one molecule:
- GLP-1: reduces appetite, slows stomach emptying and boosts insulin when blood sugar is high.
- GIP: adds to the insulin and appetite effects.
- Glucagon: increases energy use and helps the liver burn fat, which may explain its larger weight loss.
Its half-life is about 6 days, so it’s injected once a week.
03Half-life
Half-life, in plain numbers
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.
- One half-life
- 6 days
- About 97% gone
- 30 days
- Levels level out with regular use after
- 24 days–30 days
A textbook model built from the half-life alone. Real numbers vary from person to person.
04Clinical reference
Dosing information
Clinical reference. There’s no approved dose. In the published phase 2 obesity trial, participants took Reta once a week at doses up to 12 mg; higher-dose groups started at 2 mg and increased every 4 weeks. At 12 mg, average weight loss was about 24% after 48 weeks.
Talk to a doctor before use.
Mixing math. Adding 2 ml of bacteriostatic water to the 10 mg vial gives 5 mg per ml. On a U-100 insulin syringe:
- 1 mg = 0.2 ml = 20 units
- 2 mg = 0.4 ml = 40 units
- 4 mg = 0.8 ml = 80 units
Write the concentration on the vial and double-check ml versus units every time.
05Measure it
Measure 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
—
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
Where it is injected
Reta 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.
1Belly (abdomen)Fat under the skin of the bellySubQ
Volume per siteAbout 1 ml or lessNeedle4–13 mm insulin needle, 29–31G
- Pick a spot at least 5 cm (two finger-widths) from the belly button.
- Avoid scars, stretch marks, bruises and the waistband.
- Pinch up a fold of skin and inject into the fold.
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
2Front of thighFat under the skin of the thighSubQ
Volume per siteAbout 1 ml or lessNeedle4–13 mm insulin needle, 29–31G
- Sit and look down at the front of your thigh.
- Use the middle band: a hand-width below the hip crease and a hand-width above the knee.
- Pinch the skin and inject into the fold.
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
3Back of upper armFat over the tricepsSubQ
Volume per siteAbout 1 ml or lessNeedle4–13 mm insulin needle, 29–31G
- Find the soft, fleshy area at the back of the upper arm.
- Stay halfway between the shoulder and the elbow.
- Pinch the skin and inject into the fold.
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 Reta 10mgUnder the skin (subQ)
- Same areas as the weekly pensWeekly injectables in this class are labelled for the belly, thigh or back of the arm. Choose an area and move to a fresh spot each week.
- Start with the bellyIt has the most fat and the steadiest absorption, and you can see what you are doing. The thigh and arm are there to rotate into.
- Short needle, small volumeAround 1 ml or less per spot. A 4–13 mm insulin needle reaches the fat without touching muscle; pinch up the skin if you are lean.
- New spot every timeShift 2–3 cm from the last injection. Reusing one spot causes firm lumps that absorb unevenly.
- Wash your hands
- Alcohol on the stopper and skin, let it dry
- New sterile needle and syringe every time
- Never share any of it
- Sharps into a puncture-proof container
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
Brand vs brand
The same compound from another maker. What changes is the pack, the strength per tablet or ml, and the price per unit.
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
Add to cart08Risks
Side effects and risks
Expect the side effects of GLP-1 drugs, plus a few specific to Reta. All are more likely at higher doses and after dose increases.
Stomach side effects
Nausea, vomiting, diarrhea and constipation were the most common in trials, mostly mild to moderate and worst when the dose rises.
Faster heart rate
Trials found a dose-related increase in resting heart rate. Check your pulse, and stop if you notice palpitations.
Pancreas and gallbladder
As with other GLP-1 drugs, severe stomach pain spreading to the back, or upper-right pain with fever or yellow skin, needs urgent care.
Unknown long-term effects
Large, long trials are still under way. Rare risks may not be known yet.
Muscle loss
Rapid weight loss takes muscle with it. Eat enough protein and keep up resistance training.
Don’t use it if you
Or a family member have had medullary thyroid cancer or MEN 2, you’ve had pancreatitis, you have type 1 diabetes, you’re pregnant, breastfeeding or planning pregnancy, or you’re under 18.
09Interactions
Interactions
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.
- Good to knowStill in trials
Reta is investigational. The interactions below are the ones expected for its drug class.
- SeriousInsulin and sulfonylureas
Gliclazide, glyburide and insulin together with a GLP-1 medicine cause low blood sugar more often; doctors usually lower those doses first.
- CautionTablets that need steady levels
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.
- CautionA second GLP-1 medicine
Never use two drugs from this class at the same time (semaglutide, liraglutide, dulaglutide, TZ5, Reta).
- Good to knowAlcohol
Adds to the risk of low blood sugar and of pancreatitis.
10Bloodwork
Bloodwork checklist
Test before you start and about every 3 months.
- A1C and fasting glucose
- Kidney function: creatinine, eGFR
- Liver panel and lipids
- At home: weight, resting heart rate and blood pressure
11Support
Getting the most from it
- Start low and increase slowly; most stomach side effects come with dose increases.
- Eat protein at every meal and lift weights 2–3 times a week to protect muscle.
- Drink plenty of water; vomiting or diarrhea can dehydrate you.
- Keep the vial in the fridge (2–8 °C) once mixed, and never freeze it.
- Tell your surgeon or anesthetist before any procedure, as with other GLP-1 drugs.
12Pairs well with
Pairs well with
13Delivery
Delivery across Canada
Everything ships from inside Canada, so there is no border, no customs and no currency conversion.
Canada Post Xpresspost$30Free on orders over $300
Purolator / FedEx$60Courier option at checkout
- DispatchOrders ship by Canada Post Xpresspost, with tracking within 72 hours of payment. Customers commonly report 2 to 4 days to arrive, depending on the province and postal code.
- PackagingA plain outer box with no product names or branding.
- Delivery guaranteeIf a parcel is lost or seized in transit, we reship it free. Delivery policy
- ReturnsBecause of what these products are, opened or delivered orders can’t be returned. A wrong item is replaced free.
- PaymentInterac e-Transfer, priced in Canadian dollars.
14Questions
Common questions
How is Reta different from Ozempic or TZ5?
Semaglutide (Ozempic, or our SM5) acts on GLP-1; TZ5 acts on GLP-1 and GIP. Reta adds glucagon, a third target, which in trials produced larger average weight loss.
Is Reta approved?
No. It’s still being studied in phase 3 trials and hasn’t been approved in Canada or elsewhere.
How long does a 10 mg vial last?
It depends on the dose: five weeks at 2 mg a week, two and a half at 4 mg.
How fast is shipping in Canada?
Orders ship by Canada Post Xpresspost, with tracking within 72 hours of payment, with tracking.
Is Reta legal in Canada?
Reta isn’t approved by Health Canada and isn’t a controlled substance.
How is my order packaged?
In a plain, unbranded box with no product names on the outside.
15Research
Research behind this page
The studies and guidelines the clinical and safety information above leans on. Every link opens the record on PubMed.
- 1A triple-hormone-receptor agonist for obesity: phase 2 trial
N Engl J Med2023Jastreboff AM et al.PMID 37366315
- 2LY3437943, a novel triple glucagon, GIP, and GLP-1 receptor agonist for glycemic control and weight loss: From discovery to clinical proof of concept
Cell Metab2022Coskun T et al.PMID 35985340
16Reviews
What customers say
4.01 rating
- 5 ★0
- 4 ★1
- 3 ★0
- 2 ★0
- 1 ★0
AnonymousVerified order ·
After your order is delivered we email you 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.