Chem-LLC (Felix Chemical Supply) Reviews
Chem-LLC (Felix Chemical Supply) Overview
Felix Chemical Supply (operating as Chem-LLC at felixchem.is) is a domestic research peptide supplier founded in 2022 and based in New York City, positioning itself as an American-owned and operated source for research-grade chemicals with comprehensive third-party testing including endotoxin and sterility panels.
public coas
per-batch coa
ships to us
What customers love about Chem-LLC (Felix Chemical Supply)
Our top-rated vendor
Our rankings are based solely on third-party lab testing rigor, COA transparency, and pricing, no paid placements, no affiliate influence. We update this list as new data comes in.
Based on current scores, this vendor ranks highest across those criteria.
What customers dislike about Chem-LLC (Felix Chemical Supply)
Reviews shaping this summary
Anonymous
Sep 14, 2025
Bottles quality
Everything was great but taking top off of bottles they tear the wrapping
Anonymous
Apr 26, 2026
Great Vendor
Very fast shipping with free 2 day fedex. Free Hospital Bac water with order. Purity 99.6 with passed endotoxin test. Very happy
Anonymous
Jul 2, 2026
Deceptive Pricing
Be careful and read the full descriptions. There peptides at first appear cheaper, but what they are doing is reducing the mg per vile so that there price appea…
Anonymous
Jul 18, 2026
Fair price free bac water
Got an extra discount for paying ACH and they even gave me a free Hospira bac.
Anonymous
Jul 18, 2026
Excellent!
Been buying only from them for almost 5 months. I also have about 6 friends who order from them regularly and they are a legit, 3rd party, batch tested company…
Is Chem-LLC (Felix Chemical Supply) legit? Check its lab reports
Scam vendors rarely show lab work. We don't have any COAs on file for Chem-LLC (Felix Chemical Supply).
No lab reports found
Trustworthy vendors usually display COAs alongside their products. We recommend looking for a COA from Chem-LLC (Felix Chemical Supply) before you decide to buy.
Company details
Written by the company
Felix Chemical Supply (operating as Chem-LLC at felixchem.is) is a domestic research peptide supplier founded in 2022 and based in New York City, positioning itself as an American-owned and operated source for research-grade chemicals with comprehensive third-party testing includ…
Contact info
NY, US
Testing standards
In-house HPLC
Mass spectrometry
COA publicly available
Per-batch COA
Third-party labs
Accepted methods
credit card
e check
cash app
Shipping & pricing
Ships to
budget pricing tier
Last verified
June 19, 2026
Frequently asked questions
Is Chem-LLC (Felix Chemical Supply) a legitimate peptide vendor?
Based on 6 reviews on PeptideMind, Chem-LLC (Felix Chemical Supply) holds a 4.5/5 overall rating. Chem-LLC (Felix Chemical Supply) 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 Chem-LLC (Felix Chemical Supply) provide certificates of analysis (COAs)?
Yes, Chem-LLC (Felix Chemical Supply) makes COAs publicly available for their products on a per-batch basis. Their testing includes: per-batch COAs, third-party testing via US-based laboratory (unnamed).
What countries does Chem-LLC (Felix Chemical Supply) ship to?
Chem-LLC (Felix Chemical Supply) ships to: US.
What payment methods does Chem-LLC (Felix Chemical Supply) accept?
Chem-LLC (Felix Chemical Supply) accepts the following payment methods: Credit Card, E Check, Cash App.
What is Chem-LLC (Felix Chemical Supply)'s refund policy?
Chem-LLC (Felix Chemical Supply) treats all sales as final and does not accept returns.
Where is Chem-LLC (Felix Chemical Supply) based and when were they founded?
Chem-LLC (Felix Chemical Supply) is founded in 2022, based in NY, US.
Chem-LLC (Felix Chemical Supply) 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.
Anonymous
Sep 14, 2025
Bottles quality
Everything was great but taking top off of bottles they tear the wrapping
Packaging:
Anonymous
Apr 26, 2026
Great Vendor
Very fast shipping with free 2 day fedex. Free Hospital Bac water with order. Purity 99.6 with passed endotoxin test. Very happy
Purity & Accuracy:
Shipping Speed:
Anonymous
Jul 2, 2026
Deceptive Pricing
Be careful and read the full descriptions. There peptides at first appear cheaper, but what they are doing is reducing the mg per vile so that there price appears cheaper in the pop up, without reading the description. They also offer a first time buyers coupon discount. However when I went to checkout it disappeared in the total column. This is an American company that sources there products overseas.
Price / Value:
Anonymous
Jul 18, 2026
Fair price free bac water
Got an extra discount for paying ACH and they even gave me a free Hospira bac.
Price / Value:
Anonymous
Jul 18, 2026
Excellent!
Been buying only from them for almost 5 months. I also have about 6 friends who order from them regularly and they are a legit, 3rd party, batch tested company and I can attest that I have now lost 20lbs on R and Mots. Everyone that has been taking Felix Chem’s peps have lost weight and improved their overall health. Very happy with them!
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Anonymous
Jan 1, 2025
Needs better order tracking updates
The supplier needs to improve their order tracking updates. Communication after placing an order could be more proactive. Website is also very slow to load.
Customer Service:
Anonymous
Jan 1, 2025
Smooth communication, quick order fulfillment
Shipping was fast with smooth communication. Discount codes available through social media. Unboxing experience was good — products looked legitimate and properly labeled.
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Anonymous
Jan 1, 2025
Best budget domestic option
Felix Chemical Supply is the best budget option for domestic researchers seeking affordable, comprehensively-tested injectable peptides. Few competitors offer endotoxin testing at this price point.
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Anonymous
Jan 1, 2025
Dented box, intact vials — quality held up
A dented shipping box arrived with completely intact vials that met rigorous standards for reconstituting peptides with exceptional sterile quality for long-term stability.
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Anonymous
Jan 1, 2025
Fast shipping, great packaging
Order shipped quickly and arrived within about three days. Vials were placed in a padded box for refrigeration while protecting them from light exposure. Tracking was provided quickly. Orders arrived well packaged with free Hospira water as a bonus — products looked clean and properly sealed on arrival.
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Packaging:
Anonymous
Jan 1, 2025
One of the companies I trust for sourcing
This is one of the companies I trust for sourcing my research peps. I like the quality and their testing gives me confidence.
Purity & Accuracy:
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