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OEM / ODM Cosmetics Manufacturing in China
Guangzhou Chengye Cosmetic Factory GUANGZHOU
CHENGYE
R&D & Quality Control

In-house R&D and Quality Control

Formulas are tuned in the lab and problems are prevented on the line. Our in-house lab and QC room handle development, sampling and routine testing, so every batch carries a record.

R&D in progress
R&D

Starting from Your Brief, Not from Stock

The same category requires different formulas for different brand positions. We first clarify your target price, target audience and core selling point, then determine the formula system — rather than applying an existing formula directly to your brief.

  • Formula development: building the system to your functional direction and tuning sensory
  • Sampling: physical samples for evaluation and approval
  • Iteration: adjusting to feedback with a clear explanation
  • Scale-up parameters: translating the lab formula to line settings
Quality Control

Four Gates, Each with a Distinct Role

Quality control does not end with a final spot check. Materials, process, finished goods and stability each cover a distinct stage; weakening any one of them surfaces at a later stage.

01 / QC

Incoming Materials

Check source documents and specification, inspect appearance and basic indices by category.

02 / QC

In-process Check

Routine patrol on key stages such as emulsifying and filling — recording temperature, appearance and fill volume.

03 / QC

Finished Goods

Routine microbiological and physico-chemical testing against the product standard; release only when passed.

04 / QC

Stability Watch

Stability observation on development samples, informing shelf life and formula freeze.

MicrobiologicalTotal plate count, mould and yeast and similar routine items
Physico-chemicalpH, viscosity, appearance, odour and related indices
StabilityObservation and records on development-stage samples
Third-partyEngaging testing institutions per target market

Test items are determined by product category and target market; ask us for the specific list.

Inside the Lab

Inside the Laboratory

Certificates

Licences and Certificates

Subject, scope and validity follow the originals. Before cooperating, ask us for clear copies for verification.

Cosmetics Production Licence

Cosmetics Production Licence

Issued 2023, main and copy

GMPC Certificate

GMPC Certificate

Good Manufacturing Practice related

IQNET Certificate

IQNET Certificate

Issued by an IQNET member body

Certificates Overview

Certificates Overview

Overview of licence and certificates

Chengye product visual
Start a Project

Bring your product concept to a factory that can deliver

Tell us the category, functional direction and target market. We will come back with practical formula and packaging advice, plus a quote assessed on your material and process.

Landline 020-84587909
Address Dongxiang Village, Luopu Street, Panyu District, Guangzhou, Guangdong, China