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For beauty brands in Europe and North America, the most expensive OEM makeup failures are often not caused by poor formulas or weak color development.

The real problem usually appears after mass production:

• Eyeliners start leaking

• Lip glosses evaporate

• Lash serums dry out

• Mascaras crack or harden

• Products arrive damaged after shipping

And in most cases, the root cause is not the formula itself.

It’s the incompatibility between the formula and the packaging.

At GUER YOUNG, we’ve worked with many overseas beauty brands and found that a large percentage of liquid makeup product complaints actually come from packaging mismatch rather than formulation defects.

Especially in products such as:

• Eyeliners

• Lip glosses

• Lash growth serums

• Mascaras

• Brow liquids

• Hair care cosmetic products

Packaging compatibility is often the hidden factor that determines whether a product succeeds or fails in the market.

Why Packaging Compatibility Is Commonly Ignored in OEM Makeup

When developing a new beauty product, most brands focus heavily on:

• Formula performance

• Color trends

• Branding

• Influencer marketing

• Luxury packaging appearance

But they often overlook one critical factor:

The chemical and structural compatibility between the formula and the packaging.

This becomes especially important in Western markets, where consumers expect products to remain stable for long periods under various environmental conditions.

A product may pass:

• Lab testing

• Sample production

• Initial small-batch runs

But problems begin after:

• Ocean shipping

• High-temperature storage

• Long-term warehousing

• Repeated consumer use

That is why many beauty brands experience situations like:

• The first order performs well

• The second batch suddenly receives complaints

• Amazon reviews begin mentioning leakage

• TikTok users report drying or evaporation

• Retailers request returns

And surprisingly, the formula itself may still be perfectly fine.

Common OEM Makeup Leakage Problems and Their Real Causes

1. Eyeliner Leakage: Usually a Sealing Structure Problem

Many OEM eyeliner pens use generic low-cost packaging.

The common issues include:

• Unstable ink flow systems

• Poor inner stopper sealing

• Incompatible plastic materials

• Incorrect brush structure design

As a result, brands often face:

• Leakage

• Excessive ink flow

• Dry brush tips

• Formula evaporation

Western consumers prefer eyeliners that are:

• Waterproof

• Highly pigmented

• Fast drying

• Long-lasting

These formulas are naturally more volatile.

If the packaging seal is not strong enough, evaporation starts during transportation and storage.

Eventually, customers receive products that are:

• Already dry

• Clumpy

• Difficult to apply

2. Lip Gloss Evaporation and Bottle Leakage

Many brands focus mainly on lip gloss texture and color payoff.

However, the real performance depends heavily on:

The coordination between the applicator wand, inner wiper, and bottle neck.

If these components are poorly matched, brands may encounter:

• Oil leakage

• Product overflow

• Formula oxidation

• Fast evaporation

• Product buildup around the opening

Highly pigmented and oil-rich lip gloss formulas — especially popular in Europe and North America — can also cause:

• Material swelling

• Plastic deformation

• Seal failure

Once this happens in mass production, entire shipments may become unsellable.

3. Lash Growth Serums Drying Out

Lash serums are highly sensitive products.

They often contain:

• Active peptides

• Botanical extracts

• Volatile solvents

• Functional skincare ingredients

If the packaging material is unstable, it can lead to:

• Slow formula penetration

• Material aging

• Hardening seals

• Accelerated evaporation

Many OEM factories only conduct short-term stability tests.

But overseas beauty brands need:

Long-term compatibility and transportation testing.

Because products may go through:

• 45–60 days of ocean shipping

• Overseas warehouse storage

• E-commerce inventory cycles

• Temperature fluctuations

These conditions magnify every packaging weakness.

Why Many OEM Factories Cannot Solve This Problem

Because many manufacturers only focus on formulation.

They do not fully control:

• Packaging compatibility testing

• Evaporation resistance testing

• Transportation simulation

• Temperature cycle testing

• Filling system stability

In many supply chains:

• Packaging comes from one supplier

• Formula comes from another lab

• Filling is outsourced elsewhere

As a result, there is no integrated system responsibility.

When problems occur, every supplier blames someone else — while the beauty brand absorbs all customer complaints and losses.

Why Western Beauty Brands Face Higher Risks

1. High-Performance Product Demand

Consumers in Europe and North America prefer products that are:

• Ultra waterproof

• Fast drying

• Long-lasting

• Highly pigmented

These formulas are more aggressive toward packaging materials.

2. Longer Logistics Cycles

Compared with domestic markets, overseas brands usually require:

• Ocean freight

• Long-term warehousing

• Cross-border fulfillment

Even small packaging weaknesses become major problems over time.

3. Stronger Consumer Feedback Pressure

On platforms like:

• TikTok

• Amazon

• Sephora

A single viral leakage complaint can seriously damage a new product launch.

How to Prevent Large-Scale OEM Makeup Leakage Problems

1. Don’t Judge Packaging by Appearance Alone

Luxury-looking packaging does not guarantee compatibility.

The real priority should be:

Whether the packaging matches the formula system.

2. Conduct Full Compatibility Testing

Essential tests include:

• High-temperature testing

• Cold-hot cycle testing

• Evaporation testing

• Long-term sealing tests

• Filling stability tests

3. Develop Liquid Products as a Complete System

Especially for:

• Eyeliners

• Lip glosses

• Lash serums

• Mascaras

Formula, packaging, and filling systems should always be developed together.

Not separately.

4. Choose an OEM Supplier That Understands Western Markets

An experienced supplier should already consider:

• Ocean shipping stability

• EU and US compliance

• Leakage risk prevention

• Packaging compatibility

• Long-term inventory stability

This dramatically reduces after-sales costs for beauty brands.

How GUER YOUNG Supports Beauty Brands

GUER YOUNG is more than just a makeup OEM manufacturer.

We help beauty brands reduce risks from the beginning through:

• Formula and packaging compatibility analysis

• Long-term stability testing

• Liquid makeup sealing structure optimization

• Volatile formula adaptation

• Transportation scenario testing for Western markets

Our product lines include:

Eye Makeup

• Mascara

• Lash growth serum

• Eyeliner products

• Brow products

Lip Products

• Lip gloss

• Lip care products

Care Products

• Hair cosmetic products

• Beauty care formulations

We understand that beauty brands are not only asking:

“Can this product be manufactured?”

But more importantly:

“Can this product remain stable after months of shipping, storage, and customer use?”

Conclusion

One of the biggest mistakes in OEM makeup manufacturing is assuming that leakage problems are always caused by the formula.

In reality, many large-scale product failures are caused by poor packaging compatibility.

For beauty brands targeting Europe and North America, solving compatibility issues early is far more cost-effective than dealing with returns, bad reviews, and damaged reputation later.

If you are looking for a reliable OEM/ODM makeup partner for the European and North American markets, GUER YOUNG can help you reduce risks from formulation, packaging, and filling system development.

Contact GUER YOUNG today to learn more about:

• OEM makeup solutions

• Packaging compatibility support

• Stability testing services

• Liquid makeup product development

• Private label cosmetic manufacturing