Penguin Peptides review: 74/100, real store, testing gaps
As of October 2026, Penguin Peptides (penguinpeptides.com, Penguin Peptides LLC, Wyoming) lists COA images per product and size on a lab-results page, and names Northline Analytical (Denver) on one batch page; the images were behind a bot check, so lots and methods weren't confirmed. Finnrick's public record shows 5 of 9 independent tests passed, all on GLP-1 compounds, and notes missing batch identifiers.
Our verdict on Penguin Peptides
Real store, testing gaps
74/100B
#3 of 11 ranked vendors
- Publishes COAs; lot matching unconfirmed
- Named lab: Northline Analytical (Denver, CO)
- 56% of 9 independent tests passed
Last verified How we score
What to know before buying
Sells bacteriostatic water
The FDA cited bacteriostatic water sold alongside peptides as human-use evidence in all five August 2026 warning letters to other sellers.
Verified· Oct 21, 2026Store
COA and testing record
- Publishes COAs
- Yes · open COA libraryVerified· Oct 21, 2026Lab results
- Lot-matched
- Unknown
COA images were behind a bot check.
Unverified· Oct 21, 2026Lab results - Testing labs
- Northline Analytical (Denver, CO)
Named for one batch released Mar 12, 2026.
Verified· Oct 21, 2026Batch page - Methods shown
- None shown
Couldn't read the COA images.
Unverified· Oct 21, 2026Lab results - Independent tests
- Finnrick: 5 of 9 classifiable tests passed, all on GLP-1 compounds (rating 73%, #255 of 482); Finnrick notes "missing batch identifiers on every record". Latest test Aug 6, 2026.Verified· Oct 21, 2026Finnrick
Prices
Vials only. GLP-1 compounds not tracked.
| Compound | Vial | Price | Per mg | Links |
|---|---|---|---|---|
| BPC-157 | 5 mg | $42 | $8.40 | compare |
| BPC-157 | 10 mg | $62 | $6.20 | compare |
| BPC-157 + TB-500 blend5 mg + 5 mg | 10 mg | $58 | $5.80 | compare |
| BPC-157 + TB-500 blend10 mg + 10 mg | 20 mg | $100 | $5.00 | compare |
| CJC-1295 (no DAC) + Ipamorelin5 mg + 5 mg | 10 mg | $72 | $7.20 | compare |
| CJC-1295 (no DAC) + Ipamorelin10 mg + 10 mg | 20 mg | $110 | $5.50 | compare |
| DSIP | 5 mg | $40 | $8.00 | compare |
| Epithalon | 10 mg | $52 | $5.20 | compare |
| GHK-Cu | 50 mg | $54 | $1.08 | compare |
| GHK-Cu | 100 mg | $74 | $0.74 | compare |
| Ipamorelin | 5 mg | $39 | $7.80 | compare |
| Ipamorelin | 10 mg | $60 | $6.00 | compare |
| KPV | 10 mg | $69 | $6.90 | compare |
| MOTS-c | 10 mg | $65 | $6.50 | compare |
| MOTS-c | 20 mg | $110 | $5.50 | compare |
| MOTS-c | 40 mg | $197 | $4.92 | compare |
| NAD+ | 100 mg | $30 | $0.30 | compare |
| NAD+ | 500 mg | $65 | $0.13 | compare |
| NAD+ | 1 g | $119 | $0.12 | compare |
| Selank | 5 mg | $52 | $10.40 | compare |
| Selank | 10 mg | $85 | $8.50 | compare |
| Semax | 5 mg | $55 | $11.00 | compare |
| Semax | 10 mg | $85 | $8.50 | compare |
| TB-500 | 2 mg | $30 | $15.00 | compare |
| TB-500 | 5 mg | $42 | $8.40 | compare |
| TB-500 | 10 mg | $70 | $7.00 | compare |
| Tesamorelin | 5 mg | $45 | $9.00 | compare |
| Tesamorelin | 10 mg | $75 | $7.50 | compare |
| Tesamorelin | 20 mg | $125 | $6.25 | compare |
| Thymosin Alpha-1 | 5 mg | $59 | $11.80 | compare |
| Thymosin Alpha-1 | 10 mg | $97 | $9.70 | compare |
Catalog, shipping and payment
- Catalog access
- public
Pages show a bot check to scripts; prices come from the store's public product feed.
Verified· Oct 21, 2026Public store feed - GLP-1 compounds
- ListedVerified· Oct 21, 2026Store feed
- Shipping
- US only; 1-3 business days to process; adult signature over $700. Rates not published on the policy page.Verified· Oct 21, 2026Shipping policy
- Payment
- Not found. Unverified
- Returns
- All sales final; returns only for verified manufacturing defects. Damage reported within 48 hours.Verified· Oct 21, 2026Refund policy
- Company
- Penguin Peptides LLC (Wyoming)Verified· Oct 21, 2026Site
Enforcement history
No FDA warning letter, lawsuit or regulator alert naming Penguin Peptides was found as of Oct 21, 2026. See the full enforcement tracker.
Score breakdown
Method score
74/100
#3 of 11 ranked
How scores work- COA transparency
- 25/40
- Independent tests
- 14/25
- Regulatory record
- 20/20
- Policy clarity
- 15/15
Line-by-line breakdown
- Publishes COAs publicly15/15COAs viewable without an account
- COAs matched to lot numbers0/10Lot matching not confirmed
- Names an independent lab10/10Northline Analytical (Denver, CO)
- Identity test (mass spec)0/5Only purity (HPLC) or nothing shown
- Independent test pass rate14/2556% of 9 public tests passed
- Regulatory record20/20No FDA letter or regulator alert found
- Published shipping policy5/5Yes
- Published returns policy5/5Yes
- Identifiable company5/5Penguin Peptides LLC (Wyoming)
Head to head
Top-scoring alternatives
Questions
What is our Penguin Peptides review verdict?
Penguin Peptides is a real, operating store with gaps in its testing evidence: it scores 74/100 (grade B) on our published COA and testing method.
How is Penguin Peptides's score calculated?
Up to 40 points for COA transparency, 25 for independent lab results (only with at least five public tests), 20 for regulatory record and 15 for policy clarity. Only facts we verified in a primary source score, and payment can't change a score.
Where does Penguin Peptides ship and how do I pay?
US only; 1-3 business days to process; adult signature over $700. Rates not published on the policy page. Payment: not published.
Does Penguin Peptides have a discount code?
We hold no verified percentage code for Penguin Peptides.