Canadian research peptides · independently tested
Canada’s most documented peptide source — 244 independent lab reports, a published purity floor of 93.844%, and domestic shipping.
Growth Guys promo code, verified October 11, 2026: HEALTHYLIFE10 takes 10% off sitewide at Growth Guys (growthguys.com) on any payment method, and it is the code behind the largest total discount available there today — 30% off when the order is paid with Bitcoin, which the store discounts a further 20% automatically, so a $430.00 CAD cart paid $301.00 CAD. The measured cart, line by line.
Last verified at checkout at Growth Guys (growthguys.com): October 11, 2026 (today), 15:31 ET — HEALTHYLIFE10 applied and working, taking $4.00 CAD off a $40.00 CAD cart (TB-500 5mg), exactly 10% off, with no minimum purchase and no product exclusions, including HGH kits; 2 live-cart checks so far today.
We are an affiliate: if you order from Growth Guys using this code we earn a commission, at no extra cost to you. We are not Growth Guys and have no ownership of or role in the company.
Checked on October 10, 2026 at a live cart: HEALTHYLIFE10 took 10% off sitewide at Growth Guys (growthguys.com) — a $100.00 CAD cart paid $90.00 CAD, with no minimum purchase and no product exclusions.
Growth Guys takes 20% off automatically for orders paid with Bitcoin, and HEALTHYLIFE10 still applies in the coupon field on top of it. Measured in a live cart on October 11, 2026: a $430.00 CAD cart carried $86.00 CAD from the Bitcoin line and $43.00 CAD from HEALTHYLIFE10 — $301.00 CAD to pay, 30% off list. The two add rather than compound because the store computes each on the subtotal. Pay by card and the ceiling is 10%, which is what the rest of this page is about. The measured cart, line by line.
The checker records the exact percentage the discount line returns, cart by cart. Here is every distinct value seen across 578 passing carts since August 30, 2026:
| Rate observed | Carts |
|---|---|
| 10.0% | 578 |
One row. That is the whole answer to the question in the title, and it is the kind of answer a coupon page cannot give, because a coupon page never measured anything.
Aggregator sites generate them. A template produces “up to 35% off” for every store in its database, and a code string to go with it, and neither is ever entered in a cart. They rank because they are numerous, not because they are true. A bigger number on a listing changes the listing, not the checkout.
The store sets one sitewide affiliate rate and issues several strings that reach it. The strings differ; the discount behind them is identical. So “best code” cannot mean “biggest” here. It can only mean the one with the longest unbroken, dated record of being tested — which is the reason this page exists.
Today: 10 carts, 00:01–15:31 ET, all 10%. Posted cart $40.00 CAD → $36.00 CAD.
Yes, but not from a code alone: 20% comes off automatically for paying with Bitcoin, and HEALTHYLIFE10 adds 10% on top for 30% in total. On October 11, 2026 a $430.00 CAD cart paid $301.00 CAD. Paying by card, the ceiling is the 10% the code gives.
No. The store accepts one coupon per order; with one attached it refuses a second without an error message, which is the most common reason a working code is reported as dead.
Yes, on the reduced price — but it is 10% of the reduced subtotal, which is less than 10% of the list price, not more.
Across 133 distinct products Growth Guys has put 244 Janoshik reports on the record. 181 of them state a purity figure; those average 99.03%, with the lowest kept published at 93.844% and the highest at 99.99%. Keeping the low results visible is the part that makes the average mean anything. Domestic shipping within Canada, CAD pricing, no customs step. The full distribution.
That 15% reduction was the store's, not a code, and it ended on October 5, 2026. The listings it touched are priced normally again.
Measured October 11, 2026 with no sale active — $40.00 CAD cart, HEALTHYLIFE10 applied, $36.00 CAD paid. $4.00 CAD off at 10%.
HEALTHYLIFE10 was never part of that promotion, which is why it did not end with it. A code issued for a sale stops working when the sale stops. This one is a standing code, re-tested in a live cart every day, and the result of each test is published with its date.
Source: a guest cart at growthguys.com, October 11, 2026. Not a listing page.
See the HEALTHYLIFE10 cart reading for October 11, 2026. Every daily test, back to the first on record, is kept in the HEALTHYLIFE10 dated cart archive.