Also sold as Thymosin Beta-4
For 100mg of TB-500, the lowest total is PADRE Research at $204 ($2.04 per mg, as 10 × 10mg), including its multi-vial discount, code PLUG (10% off), code PADRE5 (5% off) and free shipping. Next: FirstForm Peptides at $206.95, then Glacier Aminos at $219.96. We track 14 vendors carrying it.
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| Vendor | 10mg | 100mg | Per mg | Codes applied | Testing |
|---|---|---|---|---|---|
| PADRE Researchprofile | $33.50 | $204 | $2.04 | PLUG 10% + PADRE5 5% |
Purity, Endotoxin, Metals |
| FirstForm Peptidesprofile | $50.99 | $206.95 | $2.07 | PLUG 10% + B2G1 buy 2 get 1 free |
Purity, Endotoxin, Metals |
| Glacier Aminosprofile | $64.48 | $219.96 | $2.20 | PLUG 10% |
Purity, Endotoxin, Metals |
| PeptidePlugsprofile | $65 | $270 | $2.70 | PLUG 10% first order only |
Purity, Endotoxin, Metals* |
| Peptide Supply Coprofile | $59.70 | $318 | $3.18 | PLUG 10% |
Purity, Endotoxin* |
| Crush Researchprofile | $58.98 | $322.38 | $3.22 | PLUG 10% |
Purity, Endotoxin, Metals |
| Orbitrexprofile | $56.98 | $339.93 | $3.40 | PLUG 15% |
Purity, Endotoxin, Metals* |
| Real Peptidesprofile | $48.35 | $345.60 | $3.46 | — | Purity, Endotoxin* |
| Regenerative Researchprofile | $67.14 | $352.22 | $3.52 | PLUG 15% |
Purity, Endotoxin, Metals* |
| Puratek Peptidesprofile | $60.94 | $377.68 | $3.78 | THEPEPTIDEPLUG 10% |
Purity, Endotoxin, Metals* |
| Peptide Partnersprofile | $126.90 | $441 | $4.41 | PLUG 10% |
Purity, Endotoxin, Metals |
| Forge Performanceprofile | $59.50 | $445.50 | $4.46 | PLUG 10% |
Purity, Endotoxin, Metals |
| Modern Aminosprofile | $68.10 | $488.52 | $4.89 | PLUG 10% |
Purity, Endotoxin, Metals* |
| Revitalized Researchprofile | $71.23 | $562.43 | $5.62 | PLUG 25% |
Purity, Endotoxin |
Totals come from the same optimizer as our comparison tool: each vendor's cheapest way to supply the amount, with its multi-vial and mix-and-match discounts, the discount codes we hold for that vendor, and shipping to the US. Vendors reach each amount with whatever vial sizes they sell, and a vendor without a matching size may ship slightly more. Codes marked "first order only" assume a first order. "Per mg" is for the 100mg total. Confirm the final price at checkout. *Testing marked with an asterisk is present on some batches, not all.
Buy at PADRE Research — code PLUG → See the full breakdown →| Strength | Vendors | Single vial | 10-vial kit | Per mg (kit) |
|---|---|---|---|---|
| 5mg | 1 | $35.49 · Crush Research | $173.19 · Crush Research | $3.46 |
| 10mg | 12 | $33.50 · PADRE Research | $204 · PADRE Research | $2.04 |
| 20mg | 1 | $126.90 · Peptide Partners | $1,170 · Peptide Partners | $5.85 |
| 50mg | 1 | $270.90 · Peptide Partners | $2,610 · Peptide Partners | $5.22 |
| 100mg | 1 | $441 · Peptide Partners | $4,410 · Peptide Partners | $4.41 |
Each strength is priced using only that vial size (single vials or packs of it), the same as choosing that size in the comparison tool. Totals include multi-vial discounts, our discount codes and US shipping.
It depends on how much you buy, because most vendors discount multi-vial orders. For 10mg, PADRE Research is lowest at $33.50 total. For 100mg, PADRE Research is lowest at $204 total ($2.04 per mg), including its multi-vial discount, code PLUG (10% off), code PADRE5 (5% off) and free shipping.
For 100mg, the lowest total overall — PADRE Research at $204 — is also from a vendor that publishes endotoxin testing on every batch. 12 of the 14 vendors do.
TB-500 is sold in 5mg, 10mg, 20mg, 50mg and 100mg vials. 5mg × 10: Crush Research at $173.19 ($3.46 per mg); 10mg × 10: PADRE Research at $204 ($2.04 per mg); 20mg × 10: Peptide Partners at $1,170 ($5.85 per mg); 50mg × 10: Peptide Partners at $2,610 ($5.22 per mg); 100mg × 10: Peptide Partners at $4,410 ($4.41 per mg).
PADRE Research, FirstForm Peptides, Glacier Aminos, Crush Research, Peptide Partners and Forge Performance publish heavy-metals testing on every batch. PeptidePlugs, Orbitrex, Regenerative Research, Puratek Peptides and Modern Aminos publish it on some batches.
For 100mg, totals run from $204 to $562.43 across 14 vendors — $2.04 to $5.62 per mg — including each vendor's multi-vial discounts, our discount codes and shipping. Before any discounts, list prices run from $3.00 to $7.50 per mg.