Why international brands choose B4 LAB to build in Korea
Most suppliers do one thing — a formula, a fill, or a carton. B4 LAB does the part in between: turning an idea into a product that’s actually ready to sell. We’re a development partner, not a factory — and that comes from having stood on every side of this industry.
B4 LAB helps brands grow without making production more complicated.
As a brand expands, product development tends to fragment — new partners, new timelines, new things to manage with every product.
We keep that network connected, so growth doesn’t mean starting over.
Across the whole supply chain
B4 LAB is led by a founder with 15+ years in cosmetic development — with hands-on team-lead experience across the entire chain most agencies only see one slice of.
Our founder has spent those years working across raw materials, packaging, OEM/ODM and product development — not from a desk, but inside the supply chain itself.
- 01 Raw Materials Ingredients & actives
- 02 Packaging Containers & components
- 03 Functional Materials Fabric / sheet tech
- 04 OEM / ODM Formulation & filling
- 05 Brand Operations Built and sold beauty brands
- B4 B4 LAB Every link, one partner
Raw materials
Team lead at a cosmetic raw-material company, handling major-group R&D accounts.
Packaging
Team lead at a cosmetic container manufacturer — developed cushion compacts and applicators.
OEM / ODM
Cosmetic team lead at OEM/ODM houses — color, mask packs, ampoules and more.
Functional textiles
Development of mask-pack sheets, lifting sheets, and temperature/UV-responsive sheets.
When we quote a project, we’re reading the formula, the container, the parts and the lead time at the same time — which is exactly why the numbers hold and the timelines don’t slip.
We understand development, not just coordination
Our experience includes hands-on development across hydrogel, patches and other cosmetic formats — so we read a project from the maker's side, not only the buyer's.
- →A gold-knit lifting hydrogel patch and a dedicated hydrogel film
- →A hydrocolloid handle patch and a water-soluble melting sheet
- →Through our certified network: shaped & colored hydrogel patches, hydrogel mask packs and eye patches
- →A hand sanitizer (quasi-drug) we developed and launched
Because of our hands-on development experience, we can spot the products that sample well but won't hold up in production — and flag that risk before manufacturing begins.
The right facility, not just a factory
We don’t claim a single factory’s certifications as our own. We match your project to manufacturing partners holding the standards your market requires — including facilities certified to CGMP and ISO 22716 (and ISO 9001 / ISO 14001, and vegan).
One factory offers one set of certs; a network lets us fit the right facility — and the right market certifications — to your product.
We treat honesty and trust as the product. Every quote, timeline and certification claim is something we can stand behind.
And we keep our clients’ names off this site on purpose — your project stays confidential, exactly the way theirs do.
Founded and led by
Seok Bong Hyun
FOUNDER, B4 LAB
Your concept stays yours. NDA available on request — before we review any formula or design.
Have an idea? Let’s develop it.
Before it’s a brand, it’s a B4 project.