Peptide RankingBlue Sky Peptide vs Pure Peptide Labs
Pure Peptide Labs scores higher, 74 to 56. The widest gap is documentation depth. Same formula, same data fields, October 2026.
Factor by factor
| Factor | Blue Sky Peptide | Pure Peptide Labs | Edge |
|---|---|---|---|
| Testing & certificates | 62 | 89 | Pure Peptide Labs |
| Documentation depth | 33 | 83 | Pure Peptide Labs |
| Transparency | 46 | 86 | Pure Peptide Labs |
| Track record | 39 | 19 | Blue Sky Peptide |
| Catalog | 85 | 71 | Blue Sky Peptide |
| Pricing | 97 | 50 | Blue Sky Peptide |
| Ordering & service | 45 | 70 | Pure Peptide Labs |
Fact sheets side by side
| Blue Sky Peptide | Pure Peptide Labs | |
|---|---|---|
| Overall score | 56/100 (#25) | 74/100 (#5) |
| Status | Operating | Operating |
| Based in | US | Cedar Park, TX |
| Founded | 2013 | 2024 |
| Third-party testing | Yes | Yes |
| Laboratories named | None named | Freedom Diagnostics, Kovera Labs, MDx BioAnalytical Laboratory, Precision Mass Spec |
| Public certificates | Yes | Yes |
| Lot-specific certificates | Not verified | Yes |
| Formats | vials, liquids, blends, bulk | vials, blends |
| Catalog size | ≈70 | ≈63 |
| BPC-157 5 mg listed price | $42.87 | — |
| Free shipping from | $75 | $0 |
| Payments | Not stated | card, ach |
| Ships internationally | No | No |
| Research-use disclaimer | Yes | Yes |
| FDA warning letter | None found | None found |
Read the full reviews: Blue Sky Peptide review · Pure Peptide Labs review. Both suppliers sell materials labeled for laboratory research use only.
Both appear on: US-based suppliers · Suppliers with public certificates of analysis · Suppliers with peptide blends.
The factor that separates them
The widest gap is documentation depth (33 vs 83). What that factor measures is explained in how to read a certificate of analysis and lot-level vs sample testing.
Related comparisons
Core Peptides vs Pure Peptide Labs · Paramount Peptides vs Pure Peptide Labs · BioLongevity Labs vs Pure Peptide Labs
Frequently asked questions
Which is better, Blue Sky Peptide or Pure Peptide Labs?
On our formula Pure Peptide Labs scores higher (74 vs 56). The largest gap is in documentation depth (33 vs 83). "Better" depends on what you weight; both fact sheets are on this page.
Do both publish certificates of analysis?
Blue Sky Peptide: yes. Pure Peptide Labs: yes. Lot-specific certificates — Blue Sky Peptide: not verified; Pure Peptide Labs: yes.
Which is cheaper?
We could not compare a like-for-like listing; price tiers are budget (Blue Sky Peptide) and unknown (Pure Peptide Labs).