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Free shipping on orders $350+
Canada-wide research peptides

We published COAs before anyone asked.

Every batch tested by Janoshik Analytical, every COA public. Standard practice now. It wasn’t when we started.

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>99%

Average purity across batches

100%

Of batches published with COAs

2 to 3 days

Typical delivery across Canada

Under 10 min

Average first response from support

Bestsellers

Our most-ordered peptides and compounds, with COAs published for every batch.

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Retatrutide 10mg research peptide vial by Growth Guys
99.82%purity

Retatrutide 10mg

Price range: $90.00 CAD through $720.00 CAD
Single vial
10-pack
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Growth Guys Retatrutide 20mg vial, 99.86% purity Janoshik tested research peptide
99.53%purity

Retatrutide 20mg

Price range: $150.00 CAD through $1,200.00 CAD
Single vial
10-pack
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Mockup (12)
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MOTS C 10mg White
98.84%purity

MOTS-c 10mg

Price range: $40.00 CAD through $320.00 CAD
Single vial
10-pack
Hand Final (0 00 00 00)
Tested by Janoshik

Check any batch before you buy.

Purity and mass results for every batch, plus endotoxin results where available, published on each product page.

Browse COAs

Why Growth Guys

What goes into every order, from the certificates of analysis you can check before you buy to the person who answers when you have a question.

Purity you can prove

Every batch is independently tested by Janoshik. The COAs are public, so you can check them before you order.

0 untested

batches of peptides or HGH

Fast shipping across Canada

Orders ship from within Canada, so there are no customs delays. Tracking is emailed as soon as your order ships.

$350+

for free shipping

Tested mg by mg

Each mg option is tested on its own, so the result you read matches the vial you order.

10 mg ≠ 20 mg

each mg option has its own COA

Real support, real answers

Order updates or product questions, answered by a real person through chat or the contact form.

0 bots

support is human only

What customers say

Reviews on ordering, testing, shipping and support. Every review comes from a verified order.

Frequently asked questions

Short answers to common questions. The full FAQ covers orders, shipping, payment, offers and testing.

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Most orders ship the same or next business day. When your order ships, your tracking number is emailed from orders@growthguys.com. If you haven’t received it within 1 business day of your order confirmation, check your spam folder, then contact us with your order number.

We restock as new batches arrive and pass third-party testing, so we don’t publish restock dates. Select “Notify me” on the product page and we’ll send you one email when it’s back in stock.

We accept Visa, Mastercard, American Express, Google Pay, Apple Pay, Afterpay and Bitcoin. Paying with Bitcoin takes 20% off automatically at checkout, applied after any sale prices and coupons.

We ship within Canada only, with Canada Post, in plain packaging. PO boxes and Canada Post FlexDelivery addresses are supported. Most orders arrive 2 to 3 business days after you order; remote and rural addresses can take longer. Shipping is $20, or free on orders of $350 or more. There is one shipping speed for all orders.

Every batch of HGH and peptides is tested by Janoshik Analytical, an independent third-party laboratory. If a product hasn’t been tested, we don’t sell it. The only exceptions are reconstitution supplies (bacteriostatic water and acetic acid). The Certificates of Analysis (COAs) for each batch are on the product page and in the COA Library, so you can match them to the batch you receive. Our only official website is growthguys.com.

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