Vendor review · lotilabs.com

Loti Labs reviews

Q: Is Loti Labs legit?

The reviewed evidence receives grade C under our published rubric. Independent labs have tested 32 of its vials across 6 peptides; 32 were the right peptide and 15 passed our basic check. Failed: Tirzepatide 5 mg (failed: purity was 99.042%, below 99.5%); CJC-1295 2 mg (failed: purity was 54.54%, below 99.5%; the dose was -53.5% from the label, beyond the 35% limit); CJC-1295 2 mg (failed: purity was 60.95%, below 99.5%; the dose was -42% from the label, beyond the 35% limit); Tirzepatide 5 mg (failed: purity was 99.492%, below 99.5%); Semaglutide 5 mg (failed: purity was 98.442%, below 99.5%); Semaglutide 5 mg (failed: purity was 98.331%, below 99.5%); BPC-157 5 mg (failed: purity was 99.38%, below 99.5%); Tirzepatide 5 mg (failed: purity was 96.809%, below 99.5%); Tirzepatide 5 mg (failed: purity was 97.184%, below 99.5%); BPC-157 5 mg (failed: purity was 98.249%, below 99.5%); BPC-157 5 mg (failed: purity was 98.567%, below 99.5%); CJC-1295 2 mg (failed: purity was 77.668%, below 99.5%); CJC-1295 2 mg (failed: purity was 77.532%, below 99.5%); CJC-1295 2 mg (failed: purity was 53.142%, below 99.5%; the dose was -48.5% from the label, beyond the 35% limit); Semaglutide 5 mg (failed: purity was 97.982%, below 99.5%); Semaglutide 5 mg (failed: purity was 97.449%, below 99.5%); Melanotan II 10 mg (failed: purity was 99.438%, 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 Loti Labs' lab results show?

32 vials tested between Mar 16, 2025 and May 7, 2025: Tirzepatide (10), BPC-157 (5), CJC-1295 (5), Retatrutide (5), Semaglutide (4) and Melanotan II (3). 32 of 32 were the right peptide, purity was measured on 32, and 9 of 32 were within 5% of the labelled dose. 17 failed our basic check (right peptide, at least 99.5% pure, within 35% of the labelled dose).

Q: Who sent Loti Labs' vials for testing?

bought by the independent tester (32). Chromate (16), TrustPointe (14) and MZ Biolabs (2) ran the tests. 32 were bought by the tester like a normal customer.

Loti Labs review: our rating is C (77/100), from 32 independently tested vials across 6 peptides; all 32 were the labelled peptide and 15 met our pass mark. Newest test: May 7, 2025. Peptide Vendor Reviews publishes each of these 32 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 May 7, 2025

Evidence assessment

Grade C

Our rating · 77/100

In the reviewed independent records, all 32 vials were the right peptide, and 16 of 32 were within 10% of the labelled dose. These results describe the tested samples, not all products or future batches.

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See alternatives How we grade

Test results

What was actually in the vials?

Mixed · 76/100

Results were mixed: some measurements missed the mark.

All 32 vials were the right peptide.
16 of 32 held within 10% of the labelled dose.
Purity 53.142–99.971% (some low).
17 of 32 failed our basic check: purity under 99.5% (17), dose more than 35% off the label (3).

Loti Labs 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.

Loti Labs' product assessmentsHigher-rated vendors

Tirzepatide
Mixed assessment
Not currently listed · last tested May 7, 2025
No current price
No current price
C
Vials tested
10
Right peptide
All
Purity
96.809–99.971%
Labelled quantity
8 of 10 within 10%
Visit shop See each vialFurthest off: -15.4%
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
CJC-1295
Weak assessment
Listed on the shop's site · last tested May 5, 2025
$14.99/mg · cheapest: 2 mg vial
$14.99/mg
cheapest: 2 mg vial
F
Vials tested
5
Right peptide
All
Purity
53.142–77.668%
Labelled quantity
0 of 5 within 10%
Visit shop See each vialFurthest off: -53.5%
Higher-rated vendor
B
Qing Li Peptide
19 CJC-1295 vials tested · last Aug 12, 2026
$1.40/mg · 91% cheaper than Loti Labs
Estimated price · as of Jul 21, 2026
Visit shop Read review
BPC-157
Mixed assessment
Listed on the shop's site · last tested May 5, 2025
$10.00/mg · cheapest: 5 mg vial
$10.00/mg
cheapest: 5 mg vial
C
Vials tested
5
Right peptide
All
Purity
98.249–99.698%
Labelled quantity
0 of 5 within 10%
Visit shop See each vialFurthest off: -25.4%
Higher-rated vendor
B
HK Peptides
22 BPC-157 vials tested · last Sep 9, 2026
$0.82/mg · 92% cheaper than Loti Labs
Estimated price · as of Aug 14, 2026
Visit shop Read review
Retatrutide
Mixed assessment
Not currently listed · last tested May 6, 2025
No current price
No current price
C
Vials tested
5
Right peptide
All
Purity
99.835–99.928%
Labelled quantity
4 of 5 within 10%
Visit shop See each vialFurthest off: +12%
Higher-rated vendor
A
Peptide Partners
32 Retatrutide vials tested · last Oct 14, 2026
$4.79/mg
Estimated price · as of Sep 6, 2026
Visit shop Read review
Semaglutide
Mixed assessment
Listed on the shop's site · last tested Mar 25, 2025
$11.00/mg · cheapest: 5 mg vial
$11.00/mg
cheapest: 5 mg vial
C
Vials tested
4
Right peptide
All
Purity
97.449–98.442%
Labelled quantity
4 of 4 within 10%
Visit shop See each vial
Higher-rated vendor
B
Royal Peptides
8 Semaglutide vials tested · last Jul 23, 2026
$2.00/mg · 82% cheaper than Loti Labs
cheapest: 10 × 30 mg pack
Visit shop Read review
Melanotan II
Mixed assessment
Listed on the shop's site · last tested Mar 16, 2025
$4.00/mg · cheapest: 10 mg vial
$4.00/mg
cheapest: 10 mg vial
C
Vials tested
3
Right peptide
All
Purity
99.438–99.711%
Labelled quantity
0 of 3 within 10%
Visit shop See each vialFurthest off: -14.1%
Higher-rated vendor
B
HK Peptides
12 Melanotan II vials tested · last Jul 9, 2026
$0.41/mg · 90% cheaper than Loti Labs
Estimated price · as of Feb 1, 2026
Visit shop Read review
DSIP
Never tested
Listed on the shop's site
$14.99/mg · cheapest: 2 mg vial
$14.99/mg
cheapest: 2 mg vial
N/A
No lab has tested this shop's DSIP, so we can't say what's in the vial.
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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
$4.00/mg · cheapest: 10 mg vial
$4.00/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
$1.00/mg · cheapest: 50 mg vial
$1.00/mg
cheapest: 50 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 · 94% cheaper than Loti Labs
Estimated price · as of Jul 1, 2026
Visit shop Read review
GHRP-2
Never tested
Listed on the shop's site
$5.00/mg · cheapest: 5 mg vial
$5.00/mg
cheapest: 5 mg vial
N/A
No lab has tested this shop's GHRP-2, so we can't say what's in the vial.
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No other GHRP-2 vendor met our quality score, sample-count, and recent-testing requirements.
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GHRP-6
Never tested
Listed on the shop's site
$5.00/mg · cheapest: 5 mg vial
$5.00/mg
cheapest: 5 mg vial
N/A
No lab has tested this shop's GHRP-6, so we can't say what's in the vial.
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No other GHRP-6 vendor met our quality score, sample-count, and recent-testing requirements.
Compare all GHRP-6 vendors
Hexarelin
Never tested
Listed on the shop's site
$14.99/mg · cheapest: 2 mg vial
$14.99/mg
cheapest: 2 mg vial
N/A
No lab has tested this shop's Hexarelin, so we can't say what's in the vial.
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No other Hexarelin vendor met our quality score, sample-count, and recent-testing requirements.
Compare all Hexarelin vendors
IGF-1 LR3
Never tested
Listed on the shop's site
$79.99/mg · cheapest: 1 mg vial
$79.99/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
$12.49/mg · cheapest: 2 mg vial
$12.49/mg
cheapest: 2 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 · 94% cheaper than Loti Labs
cheapest: 10 × 10 mg pack
Visit shop Read review
Kisspeptin
Never tested
Listed on the shop's site
$10.00/mg · cheapest: 5 mg vial
$10.00/mg
cheapest: 5 mg vial
N/A
No lab has tested this shop's Kisspeptin, so we can't say what's in the vial.
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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
$11.00/mg · cheapest: 5 mg vial
$11.00/mg
cheapest: 5 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 · 95% cheaper than Loti Labs
Estimated price · as of Jul 13, 2026
Visit shop Read review
LL-37
Never tested
Listed on the shop's site
$16.00/mg · cheapest: 5 mg vial
$16.00/mg
cheapest: 5 mg vial
N/A
No lab has tested this shop's LL-37, so we can't say what's in the vial.
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No other LL-37 vendor met our quality score, sample-count, and recent-testing requirements.
Compare all LL-37 vendors
Mazdutide
Never tested
Listed on the shop's site
$15.00/mg · cheapest: 10 mg vial
$15.00/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's Mazdutide, so we can't say what's in the vial.
Visit shop
Graded vendor
B
Peptide-S
4 Mazdutide vials tested · last Nov 25, 2025
$1.80/mg · 88% cheaper than Loti Labs
Estimated price · as of Nov 25, 2025
Visit shop Read review
MGF
Never tested
Listed on the shop's site
$16.50/mg · cheapest: 2 mg vial
$16.50/mg
cheapest: 2 mg vial
N/A
No lab has tested this shop's MGF, so we can't say what's in the vial.
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No other MGF vendor met our quality score, sample-count, and recent-testing requirements.
Compare all MGF vendors
MOTS-c
Never tested
Listed on the shop's site
$6.00/mg · cheapest: 10 mg vial
$6.00/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 · 89% cheaper than Loti Labs
cheapest: 10 × 10 mg pack
Visit shop Read review
Oxytocin
Never tested
Listed on the shop's site
$14.99/mg · cheapest: 2 mg vial
$14.99/mg
cheapest: 2 mg vial
N/A
No lab has tested this shop's Oxytocin, so we can't say what's in the vial.
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No other Oxytocin vendor met our quality score, sample-count, and recent-testing requirements.
Compare all Oxytocin vendors
Pinealon
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 Pinealon, so we can't say what's in the vial.
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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
$4.00/mg · cheapest: 10 mg vial
$4.00/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.
Visit shop
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
$5.00/mg · cheapest: 10 mg vial
$5.00/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
Semax
Never tested
Listed on the shop's site
$8.00/mg · cheapest: 5 mg vial
$8.00/mg
cheapest: 5 mg vial
N/A
No lab has tested this shop's Semax, so we can't say what's in the vial.
Visit shop
No other Semax vendor met our quality score, sample-count, and recent-testing requirements.
Compare all Semax vendors
Sermorelin
Never tested
Listed on the shop's site
$14.99/mg · cheapest: 2 mg vial
$14.99/mg
cheapest: 2 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
SNAP-8
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 SNAP-8, so we can't say what's in the vial.
Visit shop
No other SNAP-8 vendor met our quality score, sample-count, and recent-testing requirements.
Compare all SNAP-8 vendors
Survodutide
Never tested
Listed on the shop's site
$13.00/mg · cheapest: 10 mg vial
$13.00/mg
cheapest: 10 mg vial
N/A
No lab has tested this shop's Survodutide, so we can't say what's in the vial.
Visit shop
No other Survodutide vendor met our quality score, sample-count, and recent-testing requirements.
Compare all Survodutide vendors
Thymosin Alpha-1
Never tested
Listed on the shop's site
$8.00/mg · cheapest: 10 mg vial
$8.00/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

Loti Labs reviews: key findings

From 32 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?

32 of 32 vials

Every vial was the peptide on the label

Amount matches label?

16 of 32 vials

Within 10% of the labelled amount

Peptide purity

53.142–99.971%

Purity across 32 tested vials

Failed our quality check

17 of 32 vials

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

Testing coverage and limitations

Vials tested for contaminants

None

No contamination checks reported

Vials with a batch number

0 of 32 vials

Tested vials linked to a production run

Bought anonymously?

32 of 32 vials

Every vial bought without notifying the shop

Most recent lab test

May 2025

Over a year ago; results may be out of date

Test results

What the lab found

32 vials tested by 3 labs, Mar 16, 2025 to May 7, 2025. Results were mixed: some measurements missed the mark.

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.

Tirzepatide 10 mgMay 7, 2025-5.2%
Tirzepatide 5 mgMay 7, 2025-11.6%Failed
Retatrutide 5 mgMay 6, 2025+12%
BPC-157 5 mgMay 5, 2025-19%
CJC-1295 2 mgMay 5, 2025-53.5%Failed
CJC-1295 2 mgMay 5, 2025-42%Failed
Retatrutide 5 mgMar 27, 2025+2%
Retatrutide 5 mgMar 27, 2025+1.4%
Tirzepatide 5 mgMar 25, 2025+8.4%Failed
Tirzepatide 10 mgMar 25, 2025-2%
Tirzepatide 10 mgMar 25, 2025-1%
Tirzepatide 5 mgMar 25, 2025-15.4%
Semaglutide 5 mgMar 25, 2025-6.8%Failed
Semaglutide 5 mgMar 25, 2025-7.2%Failed
BPC-157 5 mgMar 21, 2025-20.6%
BPC-157 5 mgMar 21, 2025-18.4%Failed
Tirzepatide 10 mgMar 16, 2025-0.3%
Tirzepatide 5 mgMar 16, 2025-5.8%Failed
Tirzepatide 10 mgMar 16, 2025-1.5%
Tirzepatide 5 mgMar 16, 2025-3.6%Failed
Retatrutide 5 mgMar 16, 2025-7.8%
Retatrutide 5 mgMar 16, 2025-6.2%
BPC-157 5 mgMar 16, 2025-25.4%Failed
BPC-157 5 mgMar 16, 2025-23.8%Failed
CJC-1295 2 mgMar 16, 2025-18%Failed
CJC-1295 2 mgMar 16, 2025-20.5%Failed
CJC-1295 2 mgMar 16, 2025-48.5%Failed
Semaglutide 5 mgMar 16, 2025-4.2%Failed
Semaglutide 5 mgMar 16, 2025-3.6%Failed
Melanotan II 10 mgMar 16, 2025-12%Failed
Melanotan II 10 mgMar 16, 2025-10.5%
Melanotan II 10 mgMar 16, 2025-14.1%

What looks good

32/32
Right peptide every time
Every one of the 32 vials tested was the peptide on the label, across 3 different labs.
32 vials
32/32
Bought by the tester
32 vials were bought by the independent tester, like any customer would.
32 vials

What to watch

53.142%
Low purity
9 vials measured under 98% purity.
9 vials
-53.5%
Doses off the label
16 of 32 vials were more than 10% off the labelled dose, including CJC-1295 2 mg at -53.5% and CJC-1295 2 mg at -48.5%.
16 vials
1 yr+
Results are dated
The most recent test is more than a year old.
23
Products never tested
23 products on sale have never been independently tested, including DSIP, Epithalon, GHK-Cu.

Compare recorded results

Reta-Peptide has sample grade A; Loti Labs has sample grade C. Neither grade establishes safety or suitability.

Visit shop Visit shop

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.

Good evidence

Few batch numbers, no recent tests and none checked for contamination. The evidence meets our B-band thresholds for sample count, recency and sourcing.

What we looked atWhat we foundRating

How many vials were tested32 vials. We like to see 10 or more.Good
Who bought them32 of 32 bought by the tester like a normal customer.Good
Batch numbers0 of 32 vials.Poor
How recentLatest test 552 days before our check.Poor
Lab reports32 of 32 link to the lab report; none confirmed with the lab yet.Good
Checked for contamination0 of 32 vials.Poor
Different labs3 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

Loti Labs 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 Loti Labs 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

Loti Labs vs other peptide vendors

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

Tirzepatide

May 7, 2024 – May 7, 2025 · 24 shops tested

Loti Labs
10 vials · typical error 4.4%
Passed
60%6/10
Quantity within 10%
80%8/10
4.4%
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Polaris Peptides
13 vials · typical error 9.6%
Passed
100%13/13
Quantity within 10%
62%8/13
9.6%
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Tydes
10 vials · typical error 15.6%
Passed
90%9/10
Quantity within 10%
0%0/10
15.6%
Visit shop
Paramount Peptides
9 vials · typical error 12%
Passed
67%6/9
Quantity within 10%
33%3/9
12%
Visit shop
Peptide Sciences
9 vials · typical error 14.6%
Passed
44%4/9
Quantity within 10%
0%0/9
14.6%
–

Market average across all 24 shops: 66% passed, 35% within 10% of the label.

The 4 open shops with the most Tirzepatide 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 Loti Labs 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).

Elsewhere

Where Loti Labs is discussed

Customer reviews and forum threads are kept off this page. These links open the conversations people search for.

FAQ

Loti Labs reviews: common questions

Is Loti Labs legit?

The reviewed evidence receives grade C under our published rubric. Independent labs have tested 32 of its vials across 6 peptides; 32 were the right peptide and 15 passed our basic check. Failed: Tirzepatide 5 mg (failed: purity was 99.042%, below 99.5%); CJC-1295 2 mg (failed: purity was 54.54%, below 99.5%; the dose was -53.5% from the label, beyond the 35% limit); CJC-1295 2 mg (failed: purity was 60.95%, below 99.5%; the dose was -42% from the label, beyond the 35% limit); Tirzepatide 5 mg (failed: purity was 99.492%, below 99.5%); Semaglutide 5 mg (failed: purity was 98.442%, below 99.5%); Semaglutide 5 mg (failed: purity was 98.331%, below 99.5%); BPC-157 5 mg (failed: purity was 99.38%, below 99.5%); Tirzepatide 5 mg (failed: purity was 96.809%, below 99.5%); Tirzepatide 5 mg (failed: purity was 97.184%, below 99.5%); BPC-157 5 mg (failed: purity was 98.249%, below 99.5%); BPC-157 5 mg (failed: purity was 98.567%, below 99.5%); CJC-1295 2 mg (failed: purity was 77.668%, below 99.5%); CJC-1295 2 mg (failed: purity was 77.532%, below 99.5%); CJC-1295 2 mg (failed: purity was 53.142%, below 99.5%; the dose was -48.5% from the label, beyond the 35% limit); Semaglutide 5 mg (failed: purity was 97.982%, below 99.5%); Semaglutide 5 mg (failed: purity was 97.449%, below 99.5%); Melanotan II 10 mg (failed: purity was 99.438%, below 99.5%). We grade lab evidence and published facts; grades are not endorsements and do not determine whether a business acts lawfully.

Visit Reta-Peptide, graded A

What do Loti Labs' lab results show?

32 vials tested between Mar 16, 2025 and May 7, 2025: Tirzepatide (10), BPC-157 (5), CJC-1295 (5), Retatrutide (5), Semaglutide (4) and Melanotan II (3). 32 of 32 were the right peptide, purity was measured on 32, and 9 of 32 were within 5% of the labelled dose. 17 failed our basic check (right peptide, at least 99.5% pure, within 35% of the labelled dose).

Who sent Loti Labs' vials for testing?

bought by the independent tester (32). Chromate (16), TrustPointe (14) and MZ Biolabs (2) ran the tests. 32 were bought by the tester like a normal customer.

Compare recorded results

Reta-Peptide has sample grade A; Loti Labs has sample grade C. Neither grade establishes safety or suitability.

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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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Show Loti Labs's grade on your site

Shops can link to this review with a badge that shows the current overall grade. It updates when new lab results change the grade. The grade describes the samples tested, not every vial.

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