Peptizen has 59 reviews (4.9/5) while RS Synthesis has no reviews yet; they both offer 1 of the same peptide. Check each profile's COAs, shipping and payment options before ordering.
| Peptizen | RS Synthesis | |
|---|---|---|
| Rating | 4.9/5 | No reviews yet |
| Reviews | 59 | 0 |
| Country | Lithuania | United States |
| Shipping | Lithuania, Europe, Worldwide | Worldwide |
| Payments | Bank transfer, Credit card | Credit card, Bank transfer |
| Verified supplier | ✓ Yes | No |
| Peptides offered | Retatrutide, Tirzepatide, GHK-Cu, BPC-157, TB-500, MOTS-c | GHK-Cu, Copper Tripeptide-1 |
| Peptizen reviews → | RS Synthesis reviews → |
Peptides both offer: GHK-Cu
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