Sourcing guide

How to Choose a Private-Label Lash Adhesive Supplier: A 12-Point Checklist

By MAGAL · Updated August 2026 · 6 min read

Your supplier is your product. The difference between a lash brand that scales and one that drowns in complaints usually traces back to who makes the glue. Here's how to separate a real manufacturer from a repackager — a 12-point checklist you can send to any supplier today.

Factory vs middleman — the core question

Much of the lash glue on the market is white-labeled from a few factories and marked up through trading companies. Before anything else, find out whether you're talking to the people who actually formulate and QC the product, or to a reseller three steps removed. Everything below flows from that.

The 12-point supplier checklist

  1. Can I see your actual production line (video or visit)?
  2. Do you control the formulation, or only resell a stock product?
  3. Do you provide a Certificate of Analysis and batch record per lot?
  4. Is there a manufacturing date printed on every bottle?
  5. What is your tested formaldehyde level — in writing?
  6. Is the adhesive NMP-free (and can you prove it)?
  7. Can you send the SDS, INCI, and test data now?
  8. Are you FDA-listed and can you support my MoCRA product listing?
  9. What is the real MOQ, and can I mix SKUs?
  10. How fast are samples, and how fast is a production run?
  11. Who do I talk to for reorders — and how fast do they reply?
  12. Do you offer clinical patch-test or stability data for qualified partners?

Red flags

Vague answers about origin, no manufacturing date on bottles, "trust us, it's safe" with no test number, no SDS/CoA, and communication that routes through a sales agent who can't answer technical questions. Any one of these should slow you down.

Green flags

A supplier who volunteers documents before you ask, shows their line on camera, dates every bottle, publishes a formaldehyde figure, confirms NMP-free status, and replies fast in clear English. That's a factory built for export — and it's the standard MAGAL is built around.

Vet us against the list

Every box on the checklist, as standard

MAGAL is a Daegu, South Korea factory: NMP-free, hypoallergenic, with 72.5% lower formaldehyde (independently tested), FDA-listed with MoCRA support, dated bottles, 1,000 MOQ with mixable SKUs, and ~7-day samples. Put us through the checklist.

Request a sample kit →
How do I know if a lash glue supplier is a real factory or a middleman?

Ask to see the production line (video or visit), request batch records and a Certificate of Analysis per lot, and check whether a manufacturing date is printed on every bottle. A repackager usually can't provide these; a real factory does as standard.

What documents should a lash adhesive supplier provide?

FDA facility/product listing under MoCRA, INCI ingredient disclosure, a Certificate of Analysis, an English SDS, and formaldehyde (and ideally NMP) test results. Clinical patch-test data is a strong plus.

What's a good MOQ to ask for?

Around 1,000 units, ideally mixable across SKUs so you can test more than one formula in your first order.

Start with samples

Put a Korean-made adhesive in your own bottle

NMP-free, hypoallergenic, and with 72.5% lower formaldehyde (independently tested). Low 1,000 MOQ with mixable SKUs, samples in about 7 days — direct from the factory, no middleman.

Request a sample kit →