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Eternal Peptides vs Hydro Research
Head-to-head on 10 shared peptides: Eternal Peptides is cheaper on 5, Hydro Research on 1, 4 tied. Average price gap 21% — compared Oct 23, 2026.
- Catalog
- 10 peptides
- In stock (shared)
- 10
- Last checked
- Mar 19, 2026(stale · 222d old)
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- Catalog
- 25 peptides
- In stock (shared)
- 10
- Last checked
- Oct 23, 2026(updated 3d ago)
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Price comparison — 10 shared peptides
Prices last checked Oct 23, 2026| Peptide | Eternal Peptides | Hydro Research | Δ $/mg |
|---|---|---|---|
| BPC-157 | $4.00/mgcheaper 10mg · $39.99 | $6.50/mg 10mg · $65.00 | 38% |
| CJC-1295 + Ipamorelin | $6.00/mg 10mg · $59.99 | $6.00/mg 10mg · $60.00 | — |
| DSIP | $6.00/mgcheaper 10mg · $59.99 | $9.00/mg 5mg · $45.00 | 33% |
| GHK-Cu | $0.55/mg 100mg · $54.99 | $0.55/mg 100mg · $55.00 | — |
| Ipamorelin | $6.00/mg 10mg · $59.99 | $6.00/mg 5mg · $30.00 | — |
| Selank | $3.50/mgcheaper 10mg · $34.99 | $7.00/mg 5mg · $35.00 | 50% |
| Semax | $3.50/mg 10mg · $34.99 | $3.50/mg 10mg · $35.00 | — |
| Sermorelin | $5.00/mgcheaper 10mg · $49.99 | $6.40/mg 10mg · $64.00 | 22% |
| TB-500 | $4.50/mgcheaper 10mg · $44.99 | $6.50/mg 10mg · $65.00 | 31% |
| Tesamorelin | $9.00/mg 10mg · $89.99 | $5.50/mgcheaper 10mg · $55.00 | 39% |
Best available size tier per vendor, normalized to $/mg; in-stock tiers preferred. How prices are collected →
Third-party purity data
On file: Eternal Peptides — 16 results (Peptigrity ×11 · Finnrick ×5) · Hydro Research — 21 results (Peptigrity ×16 · Disclosed Labs ×5).
Common questions
Is Eternal Peptides or Hydro Research cheaper?
Across 10 peptides both vendors sell, Eternal Peptides has the lower $/mg price on 5 and Hydro Research on 1 (4 tied). The average per-peptide price gap is 21%. The table above compares each vendor's best size tier on a $/mg basis.
Do Eternal Peptides and Hydro Research have third-party lab tests?
Eternal Peptides has 16 third-party results on file (Peptigrity ×11 · Finnrick ×5); 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 Eternal Peptides and Hydro Research both sell?
Both vendors list 10 of the same peptides, including BPC-157, CJC-1295 + Ipamorelin, DSIP, GHK-Cu, Ipamorelin and 5 more. Eternal Peptides tracks 10 peptides total on PepVendors; Hydro Research tracks 25.