Biotech Peptides vs Core Peptides
On our published method, Core Peptides scores higher (83 vs 70). On the 15 compounds both sell, Biotech Peptides is cheaper per mg on 8 and Core Peptides on 7.
Checked Oct 21, 2026
| Attribute | Biotech Peptidesbiotechpeptides.com | Core Peptidescorepeptides.com |
|---|---|---|
| Method score | 70/100 | 83/100 |
| COA transparency (/40) | 40 | 35 |
| Independent tests (/25) | 0 | 18 |
| Regulatory record (/20) | 20 | 20 |
| Public COAs | Yes | Yes |
| Lot-matched COAs | Yes | Yes |
| Testing labs named | MZ Biolabs (Tucson, AZ) | Vanguard Laboratory (A2LA-accredited) |
| Methods on COA | HPLC-UV-MS | HPLC-UV/VIS purity |
| Independent results | Listed on Finnrick with 0 tests: "not enough classifiable tests to rate this vendor yet". | Finnrick: 5 of 7 classifiable tests passed, all on GLP-1 compounds (rating 77%, #191 of 482). Latest test Oct 1, 2026. |
| FDA / regulator record | Aug 18, 2026: Colombia's INVIMA (Alerta Sanitaria 252-2026) declared 20 "Biotech Peptides" brand products unregistered and ordered seizure. The alert names no website, so its link to biotechpeptides.com isn't established; the products may be counterfeits. | None found |
| Shipping | Same-day shipping before 1 PM PST; free USPS Priority over $200; lost or damaged packages replaced. Regions and paid rates not published. | US only. USPS Priority $12 (1-3 business days), free over $200; UPS Overnight $49. |
| Payment | Not published | Card (full list not stated) |
| Returns | Contradictory: "no returns accepted" alongside a "30 day refund guaranteed" banner. | Contradictory: the shipping page allows refund requests up to 30 days after ordering; the Terms say all sales are final. |
Price per mg on shared compounds
| Compound | Biotech Peptides | Core Peptides | Difference |
|---|---|---|---|
| NAD+ | $0.36500 mg · $179 | $0.39750 mg · $292 | Biotech Peptides −8% |
| GHK-Cu | $1.2850 mg · $64 | $1.1650 mg · $58 | Biotech Peptides +10% |
| Semax | $2.1225 mg · $53 | $2.5225 mg · $63 | Biotech Peptides −16% |
| Epithalon | $3.7625 mg · $94 | $3.6025 mg · $90 | Biotech Peptides +4% |
| Selank | $4.6010 mg · $46 | $5.2010 mg · $52 | Biotech Peptides −12% |
| Tesamorelin | $7.3010 mg · $73 | $7.9010 mg · $79 | Biotech Peptides −8% |
| CJC-1295 (no DAC) + Ipamorelin | $8.1010 mg · $81 | $8.0010 mg · $80 | Biotech Peptides +1% |
| DSIP | $8.805 mg · $44 | $8.205 mg · $41 | Biotech Peptides +7% |
| BPC-157 | $9.2010 mg · $92 | $9.7010 mg · $97 | Biotech Peptides −5% |
| Ipamorelin | $9.205 mg · $46 | $8.605 mg · $43 | Biotech Peptides +7% |
| KPV | $9.754 mg · $39 | $9.504 mg · $38 | Biotech Peptides +3% |
| MOTS-c | $9.9010 mg · $99 | $11.6010 mg · $116 | Biotech Peptides −15% |
| BPC-157 + TB-500 blend | $11.5010 mg · $115 | $9.7520 mg · $195 | Biotech Peptides +18% |
| TB-500 | $12.4010 mg · $124 | $14.0010 mg · $140 | Biotech Peptides −11% |
| Thymosin Alpha-1 | $13.0010 mg · $130 | $14.9010 mg · $149 | Biotech Peptides −13% |
Each vendor's cheapest size per mg, before codes and shipping.