Peptizen currently has the higher average rating (4.9/5 vs 4.5/5); Peptizen has more reviews (59 vs 6); they both offer 4 of the same peptides. Check each profile's COAs, shipping and payment options before ordering.
| Cosmic Peptides | Peptizen | |
|---|---|---|
| Rating | 4.5/5 | 4.9/5 |
| Reviews | 6 | 59 |
| Country | United States | Lithuania |
| Shipping | USA | Lithuania, Europe, Worldwide |
| Payments | Credit card | Bank transfer, Credit card |
| Verified supplier | ✓ Yes | ✓ Yes |
| Peptides offered | MOTS-c, RT-GLP3X, GHK-Cu, NAD+, BPC-157, TB-500, Bacteriostatic Water | Retatrutide, Tirzepatide, GHK-Cu, BPC-157, TB-500, MOTS-c, DSIP, KPV, Tesamorelin, Epithalon |
| Cosmic Peptides reviews → | Peptizen reviews → |
Peptides both offer: GHK-Cu, BPC-157, TB-500, MOTS-c
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