Vendor review · eternalpeptides.net

Eternal Peptides reviews

Q: Is Eternal Peptides legit?

The reviewed evidence receives grade B under our published rubric. Independent labs have tested 27 of its vials across 5 peptides; 27 were the right peptide and 9 passed our basic check. Failed: BPC-157 5 mg (batch Ep-250407-bpc05) (failed: purity was 51.5%, below 99.5%; the dose was -48.4% from the label, beyond the 35% limit); BPC-157 10 mg (batch EP-250407-BPC10) (failed: purity was 98.8%, below 99.5%); BPC-157 10 mg (batch EP-250407-BPC10) (failed: purity was 99.1%, below 99.5%); BPC-157 10 mg (batch EP-250407-BPC10) (failed: purity was 99.33%, below 99.5%); Tirzepatide 10 mg (batch TIRZ042024-02-5) (failed: purity was 99.338%, below 99.5%); Tirzepatide 10 mg (batch TIRZ042024-02-5) (failed: purity was 99.418%, below 99.5%); Retatrutide 10 mg (batch 2024-12-20) (failed: purity was 99.326%, below 99.5%); Retatrutide 10 mg (batch 2024-12-20) (failed: purity was 99.271%, below 99.5%); Semaglutide 10 mg (batch ROCK12674-F5-12) (failed: purity was 99.359%, below 99.5%); Semaglutide 10 mg (batch ROCK12674-F5-12) (failed: purity was 99.355%, below 99.5%); Tirzepatide 10 mg (batch TIRZ042024-02-5) (failed: purity was 99.14%, below 99.5%); Tirzepatide 10 mg (batch TIRZ042024-02-5) (failed: purity was 99.23%, below 99.5%); BPC-157 5 mg (batch 2024-12-12) (failed: purity was 98.03%, below 99.5%); BPC-157 5 mg (batch 2024-12-12) (failed: purity was 98.11%, below 99.5%); Semaglutide 10 mg (batch ROCK12674-F5-12) (failed: purity was 98.76%, below 99.5%); Semaglutide 10 mg (batch ROCK12674-F5-12) (failed: purity was 98.69%, below 99.5%); BPC-157 5 mg (batch 2024-12-12) (failed: purity was 99.056%, below 99.5%); BPC-157 5 mg (batch 2024-12-12) (failed: purity was 99.001%, below 99.5%). We grade lab evidence and published facts; grades are not endorsements and do not determine whether a business acts lawfully.

Q: What do Eternal Peptides' lab results show?

27 vials tested between May 5, 2025 and Sep 15, 2026: BPC-157 (10), Tirzepatide (5), Melanotan II (4), Retatrutide (4) and Semaglutide (4). 27 of 27 were the right peptide, purity was measured on 27, and 12 of 27 were within 5% of the labelled dose. 18 failed our basic check (right peptide, at least 99.5% pure, within 35% of the labelled dose).

Q: Who sent Eternal Peptides' vials for testing?

bought by the independent tester (21) and sent in anonymously (6). Krause Analytical (12), Janoshik (8), BTLabs (2), Chromate (2), TrustPointe (2) and Harrens Lab (1) ran the tests. 21 were bought by the tester like a normal customer.

Q: Does Eternal Peptides have a discount code?

We haven't verified a discount code for Eternal Peptides. We only list codes we have seen on the shop's site or confirmed at checkout.

Eternal Peptides review: our rating is B (86/100), from 27 independently tested vials across 5 peptides; all 27 were the labelled peptide and 9 met our pass mark. Newest test: Sep 15, 2026. Peptide Vendor Reviews publishes each of these 27 results with its certificate.

Grades describe the samples tested; some links earn us a commission, but never change a vendor's grade. How we grade

Compiled from independent lab data · not yet reviewed by our editorsUpdated Sep 15, 2026

Evidence assessment

Grade B

Our rating · 86/100

In the reviewed independent records, all 27 vials were the right peptide, and 19 of 27 were within 10% of the labelled dose. These results describe the tested samples, not all products or future batches.

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See results by product How we grade

Test results

What was actually in the vials?

Good · 82/100

Mostly good results, with some measurements off target.

All 27 vials were the right peptide.
19 of 27 held within 10% of the labelled dose.
Purity 51.5–100% (some low).
18 of 27 failed our basic check: purity under 99.5% (18), dose more than 35% off the label (1).

Eternal Peptides lab test results by peptide

Each product gets its own grade from the available lab records under the same published rubric. Alternative vendors are shown alongside with their compound-level grades. A grade describes the tested samples only.

Eternal Peptides' product assessmentsHigher-rated vendors

BPC-157
Mixed assessment
last tested Sep 15, 2026
$6.50/mg · Estimated price · as of Jun 18, 2026
$6.50/mg
Estimated price · as of Jun 18, 2026
C
Vials tested
10
Right peptide
All
Purity
51.5–99.805%
Labelled quantity
8 of 10 within 10%
Visit shop See each vialFurthest off: -48.4% (batch Ep-250407-bpc05)
Higher-rated vendor
B
HK Peptides
22 BPC-157 vials tested · last Sep 9, 2026
$0.82/mg · 87% cheaper than Eternal Peptides
Estimated price · as of Aug 14, 2026
Visit shop Read review
Tirzepatide
Strong assessment
Not currently listed · last tested Jul 14, 2026
No current price
No current price
B
Vials tested
5
Right peptide
All
Purity
99.14–99.8%
Labelled quantity
4 of 5 within 10%
Visit shop See each vialFurthest off: +20.1% (batch TIRZ042024-02-5)
Higher-rated vendor
A
Guangzhou Jeep Biotechnology JEEP
16 Tirzepatide vials tested · last Aug 4, 2026
$0.42/mg
Estimated price · as of Aug 22, 2026
Visit shop Read review
Melanotan II
Mixed assessment
Listed on the shop's site · last tested May 21, 2025
$4.00/mg · cheapest: 10 mg vial
$4.00/mg
cheapest: 10 mg vial
C
Vials tested
4
Right peptide
All
Purity
99.703–100%
Labelled quantity
2 of 4 within 10%
Visit shop See each vialFurthest off: +19.1% (batch 2025-2-5)
Higher-rated vendor
B
HK Peptides
12 Melanotan II vials tested · last Jul 9, 2026
$0.41/mg · 90% cheaper than Eternal Peptides
Estimated price · as of Feb 1, 2026
Visit shop Read review
Semaglutide
Mixed assessment
last tested May 21, 2025
$11.00/mg · Estimated price · as of May 21, 2025
$11.00/mg
Estimated price · as of May 21, 2025
C
Vials tested
4
Right peptide
All
Purity
98.69–99.359%
Labelled quantity
1 of 4 within 10%
Visit shop See each vialFurthest off: +13% (batch ROCK12674-F5-12)
Higher-rated vendor
B
Royal Peptides
8 Semaglutide vials tested · last Jul 23, 2026
$2.00/mg · 82% cheaper than Eternal Peptides
cheapest: 10 × 30 mg pack
Visit shop Read review
Retatrutide
Strong assessment
last tested Mar 25, 2026
$10.00/mg · Estimated price · as of Mar 25, 2026
$10.00/mg
Estimated price · as of Mar 25, 2026
B
Vials tested
4
Right peptide
All
Purity
99.271–100%
Labelled quantity
4 of 4 within 10%
Visit shop See each vial
Higher-rated vendor
A
Peptide Partners
32 Retatrutide vials tested · last Oct 14, 2026
$4.79/mg · 52% cheaper than Eternal Peptides
Estimated price · as of Sep 6, 2026
Visit shop Read review
5-Amino-1MQ
Never tested
Listed on the shop's site
$3.60/mg · cheapest: 10 mg vial
$3.60/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's 5-Amino-1MQ, so we can't say what's in the vial.
Visit shop
Graded vendor
B
Retalux
3 5-Amino-1MQ vials tested · last Jun 16, 2026
$0.39/mg · 89% cheaper than Eternal Peptides
Estimated price · as of May 30, 2026
Visit shop Read review
Cartalax
Never tested
Listed on the shop's site
$2.30/mg · cheapest: 20 mg vial
$2.30/mg
cheapest: 20 mg vial
N/A
No lab has tested this shop's Cartalax, so we can't say what's in the vial.
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No other Cartalax vendor met our quality score, sample-count, and recent-testing requirements.
Compare all Cartalax vendors
DSIP
Never tested
Listed on the shop's site
$3.90/mg · cheapest: 10 mg vial
$3.90/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's DSIP, so we can't say what's in the vial.
Visit shop
Graded vendor
B
HkRoids
3 DSIP vials tested · last Jul 20, 2026
Visit shop Read review
Epithalon
Never tested
Listed on the shop's site
$3.50/mg · cheapest: 10 mg vial
$3.50/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's Epithalon, so we can't say what's in the vial.
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No other Epithalon vendor met our quality score, sample-count, and recent-testing requirements.
Compare all Epithalon vendors
GHK-Cu
Never tested
Listed on the shop's site
$0.60/mg · cheapest: 100 mg vial
$0.60/mg
cheapest: 100 mg vial
N/A
No lab has tested this shop's GHK-Cu, so we can't say what's in the vial.
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Graded vendor
A
Reta-Peptide
28 GHK-Cu vials tested · last Sep 15, 2026
$0.06/mg · 90% cheaper than Eternal Peptides
Estimated price · as of Jul 1, 2026
Visit shop Read review
Glutathione
Never tested
Listed on the shop's site
$0.04/mg · cheapest: 1500 mg vial
$0.04/mg
cheapest: 1500 mg vial
N/A
No lab has tested this shop's Glutathione, so we can't say what's in the vial.
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No other Glutathione vendor met our quality score, sample-count, and recent-testing requirements.
Compare all Glutathione vendors
IGF-1 LR3
Never tested
Listed on the shop's site
$69.99/mg · cheapest: 1 mg vial
$69.99/mg
cheapest: 1 mg vial
N/A
No lab has tested this shop's IGF-1 LR3, so we can't say what's in the vial.
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No other IGF-1 LR3 vendor met our quality score, sample-count, and recent-testing requirements.
Compare all IGF-1 LR3 vendors
Ipamorelin
Never tested
Listed on the shop's site
$4.60/mg · cheapest: 10 mg vial
$4.60/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's Ipamorelin, so we can't say what's in the vial.
Visit shop
Graded vendor
A
Reta-Peptide
16 Ipamorelin vials tested · last Jul 20, 2026
$0.75/mg · 84% cheaper than Eternal Peptides
cheapest: 10 × 10 mg pack
Visit shop Read review
Kisspeptin
Never tested
Listed on the shop's site
$4.60/mg · cheapest: 10 mg vial
$4.60/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's Kisspeptin, so we can't say what's in the vial.
Visit shop
No other Kisspeptin vendor met our quality score, sample-count, and recent-testing requirements.
Compare all Kisspeptin vendors
KPV
Never tested
Listed on the shop's site
$4.55/mg · cheapest: 10 mg vial
$4.55/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's KPV, so we can't say what's in the vial.
Visit shop
Graded vendor
B
Homopeptide
3 KPV vials tested · last Sep 4, 2026
$0.56/mg · 88% cheaper than Eternal Peptides
Estimated price · as of Jul 13, 2026
Visit shop Read review
Melanotan I
Never tested
Listed on the shop's site
$3.60/mg · cheapest: 10 mg vial
$3.60/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's Melanotan I, so we can't say what's in the vial.
Visit shop
No other Melanotan I vendor met our quality score, sample-count, and recent-testing requirements.
Compare all Melanotan I vendors
MOTS-c
Never tested
Listed on the shop's site
$4.60/mg · cheapest: 10 mg vial
$4.60/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's MOTS-c, so we can't say what's in the vial.
Visit shop
Graded vendor
B
Reta-Peptide
9 MOTS-c vials tested · last Oct 12, 2026
$0.65/mg · 86% cheaper than Eternal Peptides
cheapest: 10 × 10 mg pack
Visit shop Read review
NAD+
Never tested
Listed on the shop's site
$0.13/mg · cheapest: 500 mg vial
$0.13/mg
cheapest: 500 mg vial
N/A
No lab has tested this shop's NAD+, so we can't say what's in the vial.
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No other NAD+ vendor met our quality score, sample-count, and recent-testing requirements.
Compare all NAD+ vendors
Pinealon
Never tested
Listed on the shop's site
$4.00/mg · cheapest: 10 mg vial
$4.00/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's Pinealon, so we can't say what's in the vial.
Visit shop
No other Pinealon vendor met our quality score, sample-count, and recent-testing requirements.
Compare all Pinealon vendors
PT-141
Never tested
Listed on the shop's site
$3.80/mg · cheapest: 10 mg vial
$3.80/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's PT-141, so we can't say what's in the vial.
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Graded vendor
B
Qing Li Peptide
7 PT-141 vials tested · last Sep 4, 2026
Visit shop Read review
Selank
Never tested
Listed on the shop's site
$4.60/mg · cheapest: 10 mg vial
$4.60/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's Selank, so we can't say what's in the vial.
Visit shop
No other Selank vendor met our quality score, sample-count, and recent-testing requirements.
Compare all Selank vendors
Sermorelin
Never tested
Listed on the shop's site
$5.85/mg · cheapest: 10 mg vial
$5.85/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's Sermorelin, so we can't say what's in the vial.
Visit shop
No other Sermorelin vendor met our quality score, sample-count, and recent-testing requirements.
Compare all Sermorelin vendors
SLU-PP-332
Never tested
Listed on the shop's site
$2.24/mg · cheapest: 100 × 0.5 mg pack
$2.24/mg
cheapest: 100 × 0.5 mg pack
N/A
No lab has tested this shop's SLU-PP-332, so we can't say what's in the vial.
Visit shop
No other SLU-PP-332 vendor met our quality score, sample-count, and recent-testing requirements.
Compare all SLU-PP-332 vendors
TB-500
Never tested
Listed on the shop's site
$7.00/mg · cheapest: 10 mg vial
$7.00/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's TB-500, so we can't say what's in the vial.
Visit shop
Graded vendor
B
Peptide Partners
11 TB-500 vials tested · last Aug 5, 2026
$4.90/mg · 30% cheaper than Eternal Peptides
cheapest: 10 × 10 mg pack
Visit shop Read review
Tesamorelin
Never tested
Listed on the shop's site
$8.30/mg · cheapest: 10 mg vial
$8.30/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's Tesamorelin, so we can't say what's in the vial.
Visit shop
Graded vendor
B
Shanghai ERP peptide Biotechnology
13 Tesamorelin vials tested · last Oct 12, 2026
$1.45/mg · 83% cheaper than Eternal Peptides
cheapest: 10 × 20 mg pack
Visit shop Read review
Thymalin
Never tested
Listed on the shop's site
$3.90/mg · cheapest: 10 mg vial
$3.90/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's Thymalin, so we can't say what's in the vial.
Visit shop
No other Thymalin vendor met our quality score, sample-count, and recent-testing requirements.
Compare all Thymalin vendors
Thymosin Alpha-1
Never tested
Listed on the shop's site
$6.50/mg · cheapest: 10 mg vial
$6.50/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's Thymosin Alpha-1, so we can't say what's in the vial.
Visit shop
No other Thymosin Alpha-1 vendor met our quality score, sample-count, and recent-testing requirements.
Compare all Thymosin Alpha-1 vendors

Vendors shown must meet our published grading criteria for that peptide and follow the shared quality ranking. Partner status never changes the order. We earn a commission on purchases through partner links. Shops can't pay for a grade, and inclusion is not an endorsement.

Quick facts

Eternal Peptides reviews: key findings

From 27 vials tested by independent labs. These results describe the tested vials, not every vial the shop sells. Tap i for test definitions and thresholds.

What was in the vials

Right peptide?

27 of 27 vials

Every vial was the peptide on the label

Amount matches label?

19 of 27 vials

Within 10% of the labelled amount

Peptide purity

51.5–100%

Purity across 27 tested vials

Failed our quality check

18 of 27 vials

Purity below 99.5%; Amount more than 35% off label

Testing coverage and limitations

Vials tested for contaminants

1 of 27 vials

Checked for bacterial toxins

Vials with a batch number

27 of 27 vials

Tested vials linked to a production run

Bought anonymously?

21 of 27 vials

Confirmed anonymous purchases

Most recent lab test

Sep 2026

2 months ago

Test results

What the lab found

27 vials tested by 6 labs, May 5, 2025 to Sep 15, 2026. Mostly good results, with some measurements off target.

How close each vial was to the dose on its label

0% means exactly the amount on the label. Green band: within 10%, which is good. Dashed lines: 35% over or under, where a vial fails our basic check.

BPC-157 5 mgSep 15, 2026 · Batch Ep-250407-bpc05-48.4%Failed
Tirzepatide 10 mgJul 14, 2026 · Batch Ep-250605tz10-5.3%
Retatrutide 10 mgMar 25, 2026 · Batch EP-2506012-RE10+9%
BPC-157 10 mgMar 19, 2026 · Batch EP-250407-BPC10-2%Failed
BPC-157 10 mgMar 10, 2026 · Batch EP-250407-BPC10-29.5%Failed
BPC-157 10 mgNov 17, 2025 · Batch EP-250407-BPC10+2%Failed
Tirzepatide 10 mgMay 21, 2025 · Batch TIRZ042024-02-5+10%Failed
Tirzepatide 10 mgMay 21, 2025 · Batch TIRZ042024-02-5+20.1%Failed
Retatrutide 10 mgMay 21, 2025 · Batch 2024-12-20+5.8%Failed
Retatrutide 10 mgMay 21, 2025 · Batch 2024-12-20+5.6%Failed
Melanotan II 10 mgMay 21, 2025 · Batch 2025-2-5+19.1%
Melanotan II 10 mgMay 21, 2025 · Batch 2025-2-5+19%
Semaglutide 10 mgMay 21, 2025 · Batch ROCK12674-F5-12+13%Failed
Semaglutide 10 mgMay 21, 2025 · Batch ROCK12674-F5-12+8.9%Failed
Melanotan II 10 mgMay 8, 2025 · Batch 2025-2-5+2%
Melanotan II 10 mgMay 8, 2025 · Batch 2025-2-5+3%
Tirzepatide 10 mgMay 7, 2025 · Batch TIRZ042024-02-5+5%Failed
Tirzepatide 10 mgMay 7, 2025 · Batch TIRZ042024-02-5+3%Failed
Retatrutide 10 mgMay 7, 2025 · Batch 2024-12-20+3%
BPC-157 5 mgMay 7, 2025 · Batch 2024-12-12+0.8%Failed
BPC-157 5 mgMay 7, 2025 · Batch 2024-12-12-0.2%Failed
Semaglutide 10 mgMay 7, 2025 · Batch ROCK12674-F5-12+11%Failed
Semaglutide 10 mgMay 7, 2025 · Batch ROCK12674-F5-12+12%Failed
BPC-157 5 mgMay 6, 2025 · Batch 2024-12-12+4%Failed
BPC-157 5 mgMay 6, 2025 · Batch 2024-12-12+4.4%Failed
BPC-157 5 mgMay 5, 2025 · Batch 2024-12-12+9.4%
BPC-157 5 mgMay 5, 2025 · Batch 2024-12-12+4.4%

What looks good

27/27
Right peptide every time
Every one of the 27 vials tested was the peptide on the label, across 6 different labs.
27 vials
Clean
No bacterial toxin problems
1 vial was checked for bacterial toxins (endotoxins); none tested positive.
1 vial
- BPC-157 10 mg · Mar 19, 2026 · Batch EP-250407-BPC10
21/27
Bought by the tester
21 vials were bought by the independent tester, like any customer would.
21 vials

What to watch

51.5%
Low purity
1 vial measured under 98% purity.
1 vial
- BPC-157 5 mg · Sep 15, 2026 · Batch Ep-250407-bpc05
-48.4%
Doses off the label
8 of 27 vials were more than 10% off the labelled dose, including BPC-157 5 mg (batch Ep-250407-bpc05) at -48.4% and BPC-157 10 mg (batch EP-250407-BPC10) at -29.5%.
8 vials
22
Products never tested
22 products on sale have never been independently tested, including 5-Amino-1MQ, Cartalax, DSIP.

Eternal Peptides website

Recorded sample grade: B. Reta-Peptide has sample grade A.

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Strength of evidence

What supports these results?

A lab result only describes the vial that was tested. This grade shows how well the tested vials represent what you would actually receive.

Strong evidence

Just 1 checked for contamination. The evidence meets our A-band thresholds for sample count, recency and sourcing.

What we looked atWhat we foundRating

How many vials were tested27 vials. We like to see 10 or more.Good
Who bought them21 of 27 bought by the tester like a normal customer; 6 of 27 sent in anonymously by buyers.Good
Batch numbers27 of 27 vials.Good
How recentLatest test 56 days before our check.Good
Lab reports27 of 27 link to the lab report; none confirmed with the lab yet.Good
Checked for contamination1 of 27 vials.Poor
Different labs6 labs.Good

What this review can't tell you (1)

Lab results describe the vials that were tested, not future batches or other products, and say nothing about whether a peptide is safe or suitable for you.

Shop reputation

Eternal Peptides store status, shipping and payment

Kept apart from the lab results: a smooth delivery says nothing about what's in a vial, and a clean lab report says nothing about refunds.

Not reviewed yet

We haven't checked this shop's storefront, registration, news or complaint records yet, so this part isn't graded and doesn't count toward the verdict. Know something we should look at? Tell us.

All tests

Every Eternal Peptides vial tested

A vial passes if it's the right peptide, at least 99.5% pure and within 35% of the labelled dose. Tap a vial for its batch, sender and lab report.

Comparison

Eternal Peptides vs other peptide vendors

Same peptide, same 12 months, same rules for every shop. Check the number of vials before comparing rates.

BPC-157

Sep 15, 2025 – Sep 15, 2026 · 111 shops tested

Eternal Peptides
4 vials · typical error 15.8%
Passed
0%0/4
Quantity within 10%
50%2/4
15.8%
Visit shop
LiliPeptide
23 vials · typical error 5.9%
Passed
78%18/23
Quantity within 10%
64%14/22
5.9%
–
Qing Li Peptide
22 vials · typical error 6%
Passed
50%11/22
Quantity within 10%
67%14/21
6%
Visit shop
HK Peptides
20 vials · typical error 6%
Passed
85%17/20
Quantity within 10%
70%14/20
6%
Visit shop
Wuhan Wansheng Biotechnology
19 vials · typical error 7.1%
Passed
42%8/19
Quantity within 10%
58%11/19
7.1%
Visit shop

Market average across all 111 shops: 58% passed, 52% within 10% of the label.

Eternal Peptides has only 4 vials here, too few to rank fairly against shops with dozens.

The 4 open shops with the most BPC-157 records in the same window, chosen by record count only.

Methodology

How we grade

Three separate scores out of 100, combined into one letter grade. Great reviews can never make up for bad lab results.

Lab results45%

How pure each vial was and how close it came to the labelled dose. Recent tests count more; a wrong peptide scores zero.

Strength of evidence25%

How many vials were tested, whether they were bought anonymously, and whether the reports can be checked.

Shop reputation30%

Starts at 100 and loses points for each problem we can source. Customer reviews never change a lab result.

Grade scale

A90+
B80+
C70+
D60+
F<60

Evidence uses lower cut-offs, because anonymous purchases are rare across the market.

Limits on the overall grade

Never higher than the lab-results grade.
D at most if the shop can't be ordered from, has a critical problem or fails its lab tests.
C at most if the evidence is very weak.
No lab results means no grade.

Full scoring rulesPoints, caps and cut-offs behind each score

Lab results

Each vial scores out of 100: half for purity, half for how close it was to the labelled dose.
A wrong peptide scores zero, and costs the shop 1.5 more points for every 1% of vials affected.
A vial that tests positive for bacterial toxins can score no more than 30.
Recent vials count more than old ones. Reports the shop published itself count 50%.
With only a few vials, we hold back: one perfect vial can't earn an A.

Strength of evidence

How many vials were tested (up to 35 points).
Whether they were bought anonymously, like a customer would (up to 20).
Batch numbers, how recent the tests are, a lab report you can check, contamination tests and more than one lab (the remaining 45).
Cut-offs: A 80+ · B 70+ · C 60+ · D 50+ · F 0+.

Shop reputation

Starts at 100. Each problem we can source costs points: critical 35, major 20, minor 7.
"Not reviewed yet" until we've checked, and then it doesn't count toward the overall grade.
Customer reviews inform this score only; they never change a lab result.

What the lab grade means. A: Vials were the right peptide, very pure and close to the labelled dose. C: Results were mixed: some measurements missed the mark. F: Results often failed: wrong peptide, low purity or far-off doses.

Where the data comes from, and what we didn't doSources, the basic check, missing data, authorship

Lab data. Results come from independent lab records, each published with its lab report. We copy the measurements, link the report, and grade them ourselves; nobody else's rating is used. The data is refreshed at most hourly.

The basic check. A vial passes if it's the right peptide, at least 99.5% pure, and within 35% of the labelled dose. A vial missing purity or dose is marked "not enough data", never a pass.

Missing data and look-alikes. Missing values are shown as "not measured" or "not checked". Shops with similar names aren't combined unless a connection is documented.

What we didn't do. Unless a vial says otherwise, we didn't buy or test it ourselves, didn't confirm reports with the labs, and didn't contact the shop.

Authorship. This page is compiled automatically from lab data and hasn't been reviewed by an editor yet. We have no affiliate relationship with Eternal Peptides and earn nothing from it.

Have evidence we should see? Lab reports with a batch number, order records or corrections can be sent through our contact page or to editorial@peptidevendorreviews.org.

The same rubric applies to every shop, and commercial relationships never change ratings, grades, rankings, or the selection of alternatives. Partner links are labelled. A grade describes the evidence on the date shown. It isn't advice to buy or avoid a shop, or a judgement on whether any peptide is safe or right for you. Rubric grading-v2 (2026-10-24).

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Where Eternal Peptides is discussed

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FAQ

Eternal Peptides reviews: common questions

Is Eternal Peptides legit?

The reviewed evidence receives grade B under our published rubric. Independent labs have tested 27 of its vials across 5 peptides; 27 were the right peptide and 9 passed our basic check. Failed: BPC-157 5 mg (batch Ep-250407-bpc05) (failed: purity was 51.5%, below 99.5%; the dose was -48.4% from the label, beyond the 35% limit); BPC-157 10 mg (batch EP-250407-BPC10) (failed: purity was 98.8%, below 99.5%); BPC-157 10 mg (batch EP-250407-BPC10) (failed: purity was 99.1%, below 99.5%); BPC-157 10 mg (batch EP-250407-BPC10) (failed: purity was 99.33%, below 99.5%); Tirzepatide 10 mg (batch TIRZ042024-02-5) (failed: purity was 99.338%, below 99.5%); Tirzepatide 10 mg (batch TIRZ042024-02-5) (failed: purity was 99.418%, below 99.5%); Retatrutide 10 mg (batch 2024-12-20) (failed: purity was 99.326%, below 99.5%); Retatrutide 10 mg (batch 2024-12-20) (failed: purity was 99.271%, below 99.5%); Semaglutide 10 mg (batch ROCK12674-F5-12) (failed: purity was 99.359%, below 99.5%); Semaglutide 10 mg (batch ROCK12674-F5-12) (failed: purity was 99.355%, below 99.5%); Tirzepatide 10 mg (batch TIRZ042024-02-5) (failed: purity was 99.14%, below 99.5%); Tirzepatide 10 mg (batch TIRZ042024-02-5) (failed: purity was 99.23%, below 99.5%); BPC-157 5 mg (batch 2024-12-12) (failed: purity was 98.03%, below 99.5%); BPC-157 5 mg (batch 2024-12-12) (failed: purity was 98.11%, below 99.5%); Semaglutide 10 mg (batch ROCK12674-F5-12) (failed: purity was 98.76%, below 99.5%); Semaglutide 10 mg (batch ROCK12674-F5-12) (failed: purity was 98.69%, below 99.5%); BPC-157 5 mg (batch 2024-12-12) (failed: purity was 99.056%, below 99.5%); BPC-157 5 mg (batch 2024-12-12) (failed: purity was 99.001%, below 99.5%). We grade lab evidence and published facts; grades are not endorsements and do not determine whether a business acts lawfully.

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What do Eternal Peptides' lab results show?

27 vials tested between May 5, 2025 and Sep 15, 2026: BPC-157 (10), Tirzepatide (5), Melanotan II (4), Retatrutide (4) and Semaglutide (4). 27 of 27 were the right peptide, purity was measured on 27, and 12 of 27 were within 5% of the labelled dose. 18 failed our basic check (right peptide, at least 99.5% pure, within 35% of the labelled dose).

Who sent Eternal Peptides' vials for testing?

bought by the independent tester (21) and sent in anonymously (6). Krause Analytical (12), Janoshik (8), BTLabs (2), Chromate (2), TrustPointe (2) and Harrens Lab (1) ran the tests. 21 were bought by the tester like a normal customer.

Does Eternal Peptides have a discount code?

We haven't verified a discount code for Eternal Peptides. We only list codes we have seen on the shop's site or confirmed at checkout.

Eternal Peptides website

Recorded sample grade: B. Reta-Peptide has sample grade A.

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Sources

Sources, updates and corrections

Independent lab test records, one linked per vial in the test list · Test data: Finnrick Analytics · read Nov 10, 2026

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