Growth Guys TB-500 batches TB07 and TB09: purity, mass and price per mg
Checked October 29, 2026 against the Growth Guys shop listings.
On Oct 30, 2026 both TB-500 sizes were in stock. 5mg (batch TB07) is $40 at 99.742% listed purity. 10mg (batch TB09) is $60 at 97.66%, with endotoxin of 1.910 EU per vial.
- Per mg that is $8.00 and $6.00.
Both TB-500 sizes
| Item | Size | TB-500 5mg | TB-500 10mg |
|---|---|---|---|
| Batch | TB07 | TB09 | |
| Price | $40.00 CAD (in stock) | $60.00 CAD (in stock) | |
| Per mg | $8.00 | $6.00 | |
| Listed purity | 99.742% | 97.66% | |
| Tested mass | 5.87 mg | 9.95 mg | |
| Tested (Janoshik) | 2026-01-15 | 2026-09-08 | |
| Endotoxin | Not shown | 1.910 EU per vial (2026-09-08) |
From the Growth Guys product pages, Oct 30, 2026. Each figure belongs to that batch only. Single vial and 10-pack are both offered, see the 10-pack guide.
How to read this
- The 10mg is cheaper per mg ($6.00 against $8.00), but its listed purity (97.66%) is lower than the 5mg (99.742%). Price and purity are separate columns, they do not move together.
- The tested mass of the 10mg (9.95 mg) is a little under the 10 mg label. The 5mg measured 5.87 mg. Each is one batch's result.
- The reports are eight months apart (January and September 2026). Compare test dates first.
With DEAL10 and Bitcoin
| Listing | Price | With DEAL10 (10%) | Plus Bitcoin (28% total) |
|---|---|---|---|
| TB-500 5mg | $40.00 | $36.00 | $28.80 |
| TB-500 10mg | $60.00 | $54.00 | $43.20 |
The discounts multiply, 0.90 x 0.80 = 0.72, see the stacking math.
Reading the report
- Purity, mass and endotoxin are different results. Purity is the share of the sample that is the target compound, mass is how much was measured in the vial, and endotoxin is a separate test.
- Match the batch number on the report to your vial and confirm the report on the testing lab's own page, see how to find your batch.
What the vendor says about handling
- It needs bacteriostatic water for reconstitution. Whether water is included is covered in the bacteriostatic water guide.
- Per the listing, it is stable at room temperature for short periods such as shipping, and refrigeration is recommended for longer storage. After reconstitution it must be refrigerated and kept away from direct light.
For the wider picture, see the TB-500 price and legal status guide.
Ready to order?
Enter the code at checkout. If you copied it, just paste it in the Promo code box in the order summary, then press Apply. It does not apply by itself. Confirm the discount line before you pay.
Common questions
What batches are the Growth Guys TB-500 vials?
TB07 (5mg) and TB09 (10mg) when I checked on Oct 30, 2026.
What purity does each show?
99.742% for the 5mg and 97.66% for the 10mg, both tested by Janoshik.
Is the cheaper TB-500 size higher purity?
No. The 10mg is cheaper per mg but lists lower purity than the 5mg.
What do they cost with the code and Bitcoin?
About $28.80 for the 5mg and $43.20 for the 10mg, because 0.90 x 0.80 = 0.72.