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Prime Peptides vs Royal Peptides
Head-to-head on 14 shared peptides: Prime Peptides is cheaper on 2, Royal Peptides on 12. Average price gap 43% — compared Oct 26, 2026.
- Catalog
- 14 peptides
- In stock (shared)
- 14
- Last checked
- Oct 12, 2026(stale · 14d old)
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- Catalog
- 25 peptides
- In stock (shared)
- 14
- Last checked
- Oct 26, 2026(updated today)
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Price comparison — 14 shared peptides
Prices last checked Oct 26, 2026| Peptide | Prime Peptides | Royal Peptides | Δ $/mg |
|---|---|---|---|
| AOD-9604 | $12.00/mg 5mg · $60.00 | $8.50/mgcheaper 50mg · $425.00 | 29% |
| BPC-157 | $5.50/mg 10mg · $55.00 | $2.90/mgcheaper 200mg · $580.00 | 47% |
| CJC-1295 + Ipamorelin | $8.00/mg 10mg · $80.00 | $3.42/mgcheaper 200mg · $685.00 | 57% |
| GHK-Cu | $0.60/mg 100mg · $60.00 | $0.54/mgcheaper 1000mg · $540.00 | 10% |
| Ipamorelin | $6.00/mg 10mg · $60.00 | $4.50/mgcheaper 100mg · $450.00 | 25% |
| Melanotan I | $4.50/mgcheaper 10mg · $45.00 | $4.60/mg 100mg · $460.00 | 2% |
| Melanotan II | $4.00/mgcheaper 10mg · $40.00 | $4.60/mg 100mg · $460.00 | 13% |
| MOTS-c | $6.00/mg 10mg · $60.00 | $1.69/mgcheaper 400mg · $675.00 | 72% |
| Retatrutide | $5.42/mg 60mg · $325.00 | $1.20/mgcheaper 1000mg · $1200.00 | 78% |
| Semaglutide | $7.50/mg 20mg · $150.00 | $1.60/mgcheaper 300mg · $480.00 | 79% |
| Sermorelin | $7.00/mg 10mg · $70.00 | $4.60/mgcheaper 100mg · $460.00 | 34% |
| TB-500 | $6.50/mg 10mg · $65.00 | $4.85/mgcheaper 100mg · $485.00 | 25% |
| Tesamorelin | $8.00/mg 10mg · $80.00 | $3.50/mgcheaper 200mg · $700.00 | 56% |
| Tirzepatide | $4.33/mg 60mg · $260.00 | $0.90/mgcheaper 1200mg · $1080.00 | 79% |
Best available size tier per vendor, normalized to $/mg; in-stock tiers preferred. How prices are collected →
Third-party purity data
On file: Prime Peptides — 16 results (Peptigrity ×8 · Finnrick ×4 · Disclosed Labs ×2 · Vendor COA ×2) · Royal Peptides — 20 results (Peptigrity ×17 · Finnrick ×3).
Common questions
Is Prime Peptides or Royal Peptides cheaper?
Across 14 peptides both vendors sell, Prime Peptides has the lower $/mg price on 2 and Royal Peptides on 12. The average per-peptide price gap is 43%. The table above compares each vendor's best size tier on a $/mg basis.
Do Prime Peptides and Royal Peptides have third-party lab tests?
Prime Peptides has 16 third-party results on file (Peptigrity ×8 · Finnrick ×4 · Disclosed Labs ×2 · Vendor COA ×2); Royal Peptides has 20 (Peptigrity ×17 · Finnrick ×3). Independent labs test samples bought from vendors and publish HPLC purity — grade A (≥98%) is the research-use baseline.
How many peptides do Prime Peptides and Royal Peptides both sell?
Both vendors list 14 of the same peptides, including AOD-9604, BPC-157, CJC-1295 + Ipamorelin, GHK-Cu, Ipamorelin and 9 more. Prime Peptides tracks 14 peptides total on PepVendors; Royal Peptides tracks 25.