Peptide vendor warning
Community Warning!
Some forum users report product quality inconsistencies; testing methodology (Mass Spec + UV rather than full HPLC) criticized as below industry standard; Finnrick Analytics shows high variability (scores 1.1–8.0 across 6 products, avg 5.0); manufacturing locations not disclosed.
Loti Labs Overview
Loti Labs is a Florida-based research chemical supplier specializing in peptides, research liquids, and capsules for laboratory and analytical use only. Operating from Brooksville, FL with approximately a decade of industry experience, the company emphasizes quality assurance through third-party batch testing, fast domestic fulfillment, and personalized customer support.
public coas
per-batch coa
ships to us, gb
What customers love about Loti Labs
Our top-rated vendor
Vendors are evaluated on third-party testing rigor, certificate of analysis transparency, and pricing. This spotlight is updated as new data comes in.
The vendor below currently holds the highest score across those criteria.
#1 Rated Research Peptide Supplier
What customers dislike about Loti Labs
Reviews shaping this summary
Anonymous
Jan 1, 2024
Fast same-day shipping but overpriced vs competitors
Loti Labs ships same-day on orders placed before 1pm EST, which is great. Customer service is generally responsive. However, their pricing is significantly abov…
Anonymous
May 5, 2025
Finnrick test: BPC-157 purity good but consistently underfilled
Independent Finnrick testing of 5 BPC-157 samples between March and May 2025 showed purity ranging from 98.25%–99.70%, which is acceptable. However, all vials l…
Anonymous
Jun 10, 2023
Sent wrong product and never corrected the error
Delivery via USPS took nearly 10 days in transit. When the package arrived, they sent me Oxytocin instead of TB-500. I contacted them to correct their error and…
Anonymous
Mar 1, 2025
Counterfeit T3 — blood work confirmed no effect
Received what appeared to be counterfeit T3 product. Blood work showed normal levels instead of the elevated ones expected from genuine product. This is a serio…
Anonymous
Feb 1, 2023
99.1% purity confirmed by MZ Biolabs
Loti Labs Ipamorelin 2mg tested at 99.1% purity by MZ Biolabs in February 2023. Product arrived quickly and customer service was responsive throughout the proce…
Company details
Written by the company
Loti Labs is a Florida-based research chemical supplier specializing in peptides, research liquids, and capsules for laboratory and analytical use only. Operating from Brooksville, FL with approximately a decade of industry experience, the company emphasizes quality assurance thr…
Contact info
Florida, United States
14 reviews
5
29%
4
29%
3
14%
2
29%
1
0%
Testing standards
In-house HPLC
Mass spectrometry
COA publicly available
Per-batch COA
Third-party labs
Accepted methods
credit card
crypto
e check
Shipping & pricing
Ships to
mid pricing tier
Last verified
June 19, 2026
Loti Labs reviews
Reviews sourced from across the web and written by real users on PeptideMind. Gathered from popular platforms and our own community so you get the full picture.
We screen reviews, but don't fact-check them
Reviewers' opinions are their own. We may mark a review Verified when we can confirm a real transaction occurred, but we don't validate individual claims. All reviews are screened by automated software to catch guideline violations — flag anything we may have missed.
14 reviews
5
29%
4
29%
3
14%
2
29%
1
0%
Anonymous
Jan 1, 2024
Fast same-day shipping but overpriced vs competitors
Loti Labs ships same-day on orders placed before 1pm EST, which is great. Customer service is generally responsive. However, their pricing is significantly above market average. The lack of named manufacturing facilities and the use of mass spectrometry and UV analysis only — without full HPLC impurity profiling — is a concern for a premium-priced vendor.
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Anonymous
May 5, 2025
Finnrick test: BPC-157 purity good but consistently underfilled
Independent Finnrick testing of 5 BPC-157 samples between March and May 2025 showed purity ranging from 98.25%–99.70%, which is acceptable. However, all vials labeled as 5mg were consistently underfilled, containing only 3.73–4.08mg of actual peptide — a shortfall of 18–25%. This resulted in a tentative 'E (Bad)' rating from Finnrick. Average Finnrick score across 5 tests: 3.5 (range 2.2–4.5).
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Anonymous
Jun 10, 2023
Sent wrong product and never corrected the error
Delivery via USPS took nearly 10 days in transit. When the package arrived, they sent me Oxytocin instead of TB-500. I contacted them to correct their error and they never replied back. Very disappointed — will not order again.
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Anonymous
Mar 1, 2025
Counterfeit T3 — blood work confirmed no effect
Received what appeared to be counterfeit T3 product. Blood work showed normal levels instead of the elevated ones expected from genuine product. This is a serious quality control failure and I will not be ordering again.
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Anonymous
Feb 1, 2023
99.1% purity confirmed by MZ Biolabs
Loti Labs Ipamorelin 2mg tested at 99.1% purity by MZ Biolabs in February 2023. Product arrived quickly and customer service was responsive throughout the process. Prices are on the higher end but quality was confirmed via independent testing.
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Anonymous
Feb 18, 2023
Extremely impressed — 8 purchases in
They had great customer service, with a very quick response time. The shipping was also very quick, and there were no issues with the package or the order. Overall, I was extremely impressed with Loti Labs. Independent lab testing confirmed BPC-157 at 99.2% purity and TB-500 at 100% purity.
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Anonymous
Jan 15, 2022
Four years without a single issue
I have purchased my research liquids and peptides from Loti Labs for the past 4 years and never once have I had an issue. Pricing is fair, shipping is fast, and customer service always responds quickly.
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Frequently asked questions
Is Loti Labs a legitimate peptide vendor?
Based on 14 reviews on PeptideMind, Loti Labs holds a 3.2/5 overall rating. Loti Labs provides publicly available certificates of analysis (COAs). As with any research chemical vendor, we recommend reviewing available lab documentation and community feedback before purchasing.
Does Loti Labs provide certificates of analysis (COAs)?
Yes, Loti Labs makes COAs publicly available for their products on a per-batch basis. Their testing includes: mass spectrometry, per-batch COAs, third-party testing via SR Bio Labs.
What countries does Loti Labs ship to?
Loti Labs ships to: US, GB.
What payment methods does Loti Labs accept?
Loti Labs accepts the following payment methods: Credit Card, Crypto, E Check.
Where is Loti Labs based and when were they founded?
Loti Labs is founded in 2014, based in FLORIDA, United States.
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