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Coastal Peptides vs Hydro Research
Head-to-head on 15 shared peptides: Coastal Peptides is cheaper on 9, Hydro Research on 6. Average price gap 17% — compared Oct 23, 2026.
- Catalog
- 15 peptides
- In stock (shared)
- 15
- Last checked
- Sep 28, 2026(stale · 28d old)
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- Catalog
- 25 peptides
- In stock (shared)
- 15
- Last checked
- Oct 23, 2026(updated 3d ago)
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Price comparison — 15 shared peptides
Prices last checked Oct 23, 2026| Peptide | Coastal Peptides | Hydro Research | Δ $/mg |
|---|---|---|---|
| AOD-9604 | $7.80/mg 5mg · $39.00 | $7.00/mgcheaper 50mg · $350.00 | 10% |
| BPC-157 | $4.40/mgcheaper 10mg · $44.00 | $6.50/mg 10mg · $65.00 | 32% |
| CJC-1295 | $7.20/mg 10mg · $72.00 | $6.00/mgcheaper 5mg · $30.00 | 17% |
| CJC-1295 + Ipamorelin | $7.40/mg 10mg · $74.00 | $6.00/mgcheaper 10mg · $60.00 | 19% |
| GHK-Cu | $0.45/mgcheaper 100mg · $45.00 | $0.55/mg 100mg · $55.00 | 18% |
| GLOW | $1.56/mg 70mg · $109.00 | $1.36/mgcheaper 70mg · $95.00 | 13% |
| Ipamorelin | $5.40/mgcheaper 10mg · $54.00 | $6.00/mg 5mg · $30.00 | 10% |
| KLOW | $1.49/mgcheaper 80mg · $119.00 | $1.88/mg 80mg · $150.00 | 21% |
| Melanotan II | $3.40/mg 10mg · $34.00 | $2.90/mgcheaper 10mg · $29.00 | 15% |
| PT-141 | $3.90/mgcheaper 10mg · $39.00 | $5.00/mg 10mg · $50.00 | 22% |
| Retatrutide | $5.97/mgcheaper 30mg · $179.00 | $8.75/mg 40mg · $350.00 | 32% |
| Semaglutide | $7.90/mgcheaper 10mg · $79.00 | $9.80/mg 50mg · $490.00 | 19% |
| TB-500 | $6.40/mgcheaper 10mg · $64.00 | $6.50/mg 10mg · $65.00 | 2% |
| Tesamorelin | $6.50/mg 10mg · $65.00 | $5.50/mgcheaper 10mg · $55.00 | 15% |
| Tirzepatide | $3.98/mgcheaper 60mg · $239.00 | $4.17/mg 300mg · $1250.00 | 4% |
Best available size tier per vendor, normalized to $/mg; in-stock tiers preferred. How prices are collected →
Third-party purity data
On file: Coastal Peptides — 9 results (Finnrick ×5 · Peptigrity ×4) · Hydro Research — 21 results (Peptigrity ×16 · Disclosed Labs ×5).
Common questions
Is Coastal Peptides or Hydro Research cheaper?
Across 15 peptides both vendors sell, Coastal Peptides has the lower $/mg price on 9 and Hydro Research on 6. The average per-peptide price gap is 17%. The table above compares each vendor's best size tier on a $/mg basis.
Do Coastal Peptides and Hydro Research have third-party lab tests?
Coastal Peptides has 9 third-party results on file (Finnrick ×5 · Peptigrity ×4); Hydro Research has 21 (Peptigrity ×16 · Disclosed Labs ×5). Independent labs test samples bought from vendors and publish HPLC purity — grade A (≥98%) is the research-use baseline.
How many peptides do Coastal Peptides and Hydro Research both sell?
Both vendors list 15 of the same peptides, including AOD-9604, BPC-157, CJC-1295, CJC-1295 + Ipamorelin, GHK-Cu and 10 more. Coastal Peptides tracks 15 peptides total on PepVendors; Hydro Research tracks 25.