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Loti Labs

Is Loti Labs Legit

Is Loti Labs a legit peptide vendor? 32 independent lab tests across 6 products, with a mixed lab record.

Written by the Peptide Vendor Reviews editorial team

Lab record: Mixed

How we rate
  • 32 independent tests
  • 11 of 32 lots filled to label
  • Median purity 99.47%
  • 3 of 4 products graded D or E

Some of Loti Labs's products graded D or E. The shops below tested A or B for the same peptides.

Peptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.

Better-tested options

Where Loti Labs graded D or E, these shops' samples of the same peptide graded A or B. Ordered by grade, then price per mg. Partner status never changes the order.

Melanotan II

Loti Labs: grade D

Tirzepatide

Loti Labs: grade D

Loti Labs products we've tested

Best-graded first. Grades come from the share of each product's samples that passed purity and quantity checks. Buy links open Loti Labs' site.

What the testing shows

Across 32 measured samples from Loti Labs, 21 came in more than 5% under the quantity on the label (66%). Another 2 measured more than 5% over. Purity across 32 readings ran from 53.14% to 99.97%, median 99.47%. Samples span Mar 2025 to May 2025.

Under label
21/32

more than 5% short

Median purity
99.47%

53.14%–99.97% range

Latest sample
May 2025

first tested Mar 2025

Ships from
US. Fl

per vendor listing

Our read on Loti Labs

15 of Loti Labs' 32 graded samples passed (47%), and 0% of all samples were sent in by buyers rather than by the shop.

When a sample failed, the most common reason was purity under 99.5% (17 times).

Against the 302 shops with at least five graded tests, Loti Labs' pass rate is at or above 14% of them, and it has more tests on record than 65% of them.

When and how Loti Labs was tested

Samples per month. The darker part of each bar failed.

Labs used
Chromate (16), TrustPointe (14), MZ Biolabs (2)
Who sent the samples
testing programme 100%
Batches covered
No batch numbers on the certificates

Why Loti Labs' failed samples failed

The 6 most recent failed tests, with the lab's reason.

  • Tirzepatide · May 7, 2025

    purity under 99.5%

    purity 99.042%fill -12%Certificate
  • CJC-1295 DAC · May 5, 2025

    purity under 99.5%; amount in the vial more than 35% off the label

    purity 54.54%fill -54%Certificate
  • CJC-1295 DAC · May 5, 2025

    purity under 99.5%; amount in the vial more than 35% off the label

    purity 60.95%fill -42%Certificate
  • Semaglutide · Mar 25, 2025

    purity under 99.5%

    purity 98.442%fill -7%Certificate
  • Semaglutide · Mar 25, 2025

    purity under 99.5%

    purity 98.331%fill -7%Certificate
  • Tirzepatide · Mar 25, 2025

    purity under 99.5%

    purity 99.492%fill +8%Certificate

Lab testing results

Independent results across 6 products.

32
Total lab tests
93.4%
Avg purity
100.0%
Best score
53.1%
Worst score

Individual lab tests

Tirzepatide9.9

Date

5/7/2025

Purity

99.042%

Quantity

5 mg → 4.42 mg

Lab

TrustPointe

Vial

White Label / Silver Crimp / Black Cap

View certificate
Tirzepatide10.0

Date

5/7/2025

Purity

99.835%

Quantity

10 mg → 9.48 mg

Lab

TrustPointe

Vial

White Label / Silver Crimp / Purple Cap

View certificate
Retatrutide10.0

Date

5/6/2025

Purity

99.909%

Quantity

5 mg → 5.6 mg

Lab

TrustPointe

Vial

White Label / Silver Crimp / Violet Cap

View certificate
BPC-15710.0

Date

5/5/2025

Purity

99.507%

Quantity

5 mg → 4.05 mg

Lab

TrustPointe

Vial

White Label / Silver Crimp / Purple Cap

View certificate
CJC-12956.1

Date

5/5/2025

Purity

60.95%

Quantity

2 mg → 1.16 mg

Lab

MZ Biolabs

Vial

White Label / Silver Crimp / Red Cap

View certificate

Which Loti Labs products tested best

Retatrutide has the strongest record, graded A or B.

Melanotan II, Tirzepatide and BPC-157 graded D or E: a large share of their samples missed purity or quantity thresholds.

Buying from Loti Labs

If you order from Loti Labs, the A- and B-graded products are the safer picks on this record. For the weaker ones, the better-tested options on this page come from other shops.

We don't track Loti Labs' prices yet. Shipping, payment and refund terms are on their site.

The official store is lotilabs.com. Check the address before you pay.

What to check before you pay

  • The lot number on the vial matches the certificate
  • The certificate names the lab and the test date
  • Fill versus label, not purity alone
  • A refund policy in writing

Track Loti Labs

Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.

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Loti Labs: common questions

Is Loti Labs legit?

We rate lab records, not businesses. Mixed lab record: 32 independent tests, 11 of 32 lots filled to label, median purity 99.47%, 3 of 4 products graded D or E. Each result links to its original certificate in the table above.

What do Loti Labs reviews say?

We don't hold scored customer reviews for Loti Labs yet. The independent lab results on this page are the evidence we have.

Which Loti Labs peptides tested best?

We have graded 4 Loti Labs products. Retatrutide graded A or B. Melanotan II, Tirzepatide and BPC-157 graded D or E.

Is there a Loti Labs coupon code?

We don't have a verified Loti Labs coupon code. A discount changes the price, not what is in the vial.

Where does Loti Labs ship from?

Public listings place Loti Labs's shipping origin in US. Fl. Check the shop's own shipping page before ordering, as origin can change.

Ordering from Loti Labs?

Mixed lab record: 32 independent tests, 11 of 32 lots filled to label, median purity 99.47%, 3 of 4 products graded D or E.

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