Lecos Lecos

Custom Airless Glass Bottles With Airtight Seals

Precision Packaging Solutions Engineered for Formula Integrity, Shelf-Life Extension, and Sustainable Premium Branding

Featured Glass Packaging Series (Top Selection)
Custom 10g Regular Custom Cream Glass Bottle

Custom 10g Regular Custom Cream Glass Bottle with PCR Cap

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China New Design Skincare Glass Serum Oil Bottle

China New Design Skincare Glass Serum Oil Bottle 150ml Empty

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High-Quality Luxury square cosmetics glass jar

High-Quality Luxury square cosmetics glass jar 15g container

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High-Quality Square 3g Glass Empty Eye Cream Jar

High-Quality Square 3g Glass Empty Eye Cream Jar

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China 3ml Free Samples Serum Cosmetic Vial Glass Dropper Bottle

China 3ml Free Samples Serum Cosmetic Vial Glass Dropper Bottle

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Custom 30mL Pump Lotion Cosmetic Glass Bottle

Custom 30mL Pump Lotion Cosmetic Glass Bottle Skincare Packaging

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High-Quality 15ml Glass Dropper Bottle SK155

High-Quality 15ml Glass Dropper Bottle SK155

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High-Quality 30g Luxury square cosmetics glass jar

High-Quality 30g Luxury square cosmetics glass jar cosmetic container

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Industry Analysis & Whitepaper

The Paradigm Shift in Cosmetic Packaging: Airless Glass Systems

In the rapidly evolving luxury cosmetics and medical-grade skincare sectors, maintaining formula integrity is paramount. Conventional pump packaging relies on dip tubes that introduce environmental oxygen to the container every time the pump is depressed. This exposure initiates micro-oxidation, which rapidly degrades volatile active ingredients such as Retinol, Vitamin C, peptides, and botanical oils.
To address this challenge, premium brands are turning to Custom Airless Glass Bottles with Airtight Seals. Glass, being highly inert and impermeable, provides an unmatched chemical barrier against moisture and air. When coupled with an airless delivery mechanism (using either an internal piston or a collapsible pouch), the product is dispensed under vacuum conditions, shielding delicate formulas from exposure. This engineering marvel eliminates the need for aggressive synthetic stabilizers and high preservative concentrations, supporting the clean-beauty shift toward organic and dermatological formulas.
99.8%
Oxygen Evacuation Rate
100%
Glass Inertness Index
<0.5%
Product Wastage / Rest
10+ Yrs
Manufacturing Experience
Who We Are

Lecos Glass: Pioneers of Precision Packaging

Lecos Glass has been dedicated to the glass packaging industry for over 10 years, delivering innovative wholesale glass bottles and jars designed for cosmetics, perfume, personal care, essential oils, and candle glass packaging. We pride ourselves on offering customized glass bottles tailored to our clients' brand DNA.

Our comprehensive collections and product offerings include:

Lecos Glass Manufacturing Detail
What We Do

Bespoke Solutions & Surface Customization

Lecospack provides professional glass cosmetic packaging solutions to a global clientele. By focusing on customization, stability, and cost-effectiveness, we develop packaging that reflects each brand's unique identity. We control glass product quality strictly, which has earned the trust of domestic and foreign brands alike.

Our state-of-the-art post-processing capabilities include frosting, electroplating, spraying, decals, and high-precision silk screening. This allows us to transform high-performance packaging into visual statements of luxury.

Lecospack Quality Control Lab
Lecos Pack Packaging Design Showcase
Technical Roadmap & Engineering

Engineering the Ultimate Airtight Barrier

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Piston-Driven Evacuation

A mechanical piston plate at the base of the bottle rises as the pump is depressed. This maintains a consistent vacuum chamber beneath the cosmetic product, completely eliminating the need for a dip tube and avoiding any ambient air backflow.

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Elastomeric Seal Technology

Our pump systems feature high-grade silicone or thermoplastic elastomer seals. These are engineered to fit the glass inner diameter perfectly, preventing product leakage even under extreme temperature and pressure shifts during air transport.

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Zero-Metal Path Design

Metal components in cosmetic pumps can trigger oxidation when in direct contact with active formulations. Lecospack's airless glass systems use a metal-free fluid path, isolating the spring mechanism outside the chamber to protect the product.

Market Scenarios

Localized Applications of Airless Glass Packaging

Different regions and market segments exhibit distinct demands for airless glass containers:
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European Dermocosmetics

European Union regulatory standards (EC 1223/2009) strictly limit many traditional preservatives. Organic cosmetic brands in France, Germany, and Switzerland use our airless glass bottles to ensure formula stability for clean beauty lines.

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North American Clinical Brands

Clinical and dermatologist-led brands in the United States rely on airless bottles to package high-strength active ingredients like Retinol and Vitamin C. Minimizing air exposure prevents discoloration and performance degradation.

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East Asian Skin Barrier Serums

In Japan and South Korea, where barrier-repair and soothing centella/ceramide serums are popular, airless packaging prevents airborne microbes from contaminating the formulas during daily use, which is critical for sensitive skin.

Our Standards

Consistency is Key

High Quality

High Quality

Premium raw materials and strict quality management systems guarantee uniform neck geometries and reliable airless pump performance across batches.

Competitive Prices

Competitive Prices

Vertical integration and lean production structures allow us to offer cost-effective, premium glass packaging solutions.

Excellent Service

Excellent Service

Our dedicated team supports clients through custom design phases, tool development, quality testing, and compliance documentation.

Supply Chain Advantage

The Strength of China's Advanced Glass Manufacturing

Our production base in China provides substantial manufacturing benefits. Lecospack harnesses a consolidated local cluster of high-purity silica suppliers, precision pump fabricators, and advanced mold-making facilities to shorten production cycles.

This localized integration allows us to build custom pilot tools in as little as 15 to 20 days. Our advanced manufacturing facility balances automation with craftsmanship, utilizing robotic hot-end testing alongside human visual inspection to deliver high-quality glass jars and bottles that comply with international safety standards.

With access to major deep-water ports like Ningbo and Shanghai, we ensure reliable, cost-effective shipping networks to handle custom ocean and air freight logistics efficiently.

Production Process 1 Production Process 2 Production Process 3 Production Process 4
Corporate Vision

Environmental Stewardship & Human Rights

Lecospack is built on a foundation of deeply held values that guide our daily actions and corporate culture. We are committed to social responsibility, ethical standards, and supporting universal human rights.
We prioritize environmental protection in our manufacturing processes. By using electric melting furnaces, we reduce carbon emissions during raw glass manufacturing. We also offer Post-Consumer Recycled (PCR) glass options and design refillable packaging systems to support circular economy goals.
We celebrate diversity, foster creativity, and support our employees with safe, fair, and positive working environments. By maintaining these standards, we ensure that Lecospack remains a responsible, ethical packaging partner.
Lecos Office/Team Space Packaging Logistics Depot Factory Facility Inside Product QC Lab Station
Trusted Global Partners

Projects' Brands

Delivering luxury-tier reliability and premium shelf appeal for leading global brands

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Future Outlook

Sustainability Roadmap: Refillable Airless Glass & Eco-design

As global regulations push to minimize single-use packaging waste, the glass cosmetics packaging sector is undergoing a transformation. While glass is infinitely recyclable, its weight increases transportation energy. In response, Lecospack's design laboratory is spearheading two key technical developments:
1. Refillable Inner Pouch Glass Systems: We are designing outer glass containers that can be paired with replaceable, light-weight PP or PCR plastic inner cartridges. This allows the consumer to reuse the heavy, customized glass base indefinitely while replacing only the light internal chamber containing the airless seal mechanism.
2. High-Ratio PCR Glass Melting: We are collaborating with raw material recycling partners to introduce up to 40% post-consumer recycled (PCR) glass into our furnace feeds without compromising structural integrity or glass clarity. This helps brands lower their scope 3 carbon emissions and aligns with global eco-design initiatives.
Quality Verification

Validation Protocols for Airtight Seals

To guarantee leak-free protection and stable performance under varying environmental conditions, Lecospack subjects all airless glass components to strict laboratory validation:
Validation Test Testing Conditions Performance Criterion
Vacuum Leakage Test Pressure drawn to -0.08 MPa for 10 minutes (submerged in indicator dye water) Zero liquid intrusion / zero bubble release
Dispense Yield Accuracy Repeated actuations of high-viscosity cream formulas Product evacuation rate >98.8%
Compatibility & Extraction Oven incubation at 45°C for 12 weeks containing active formulation No plastic leaching; zero container corrosion
Drop & Transit Simulation Standard drops onto concrete from 1.2m heights No mechanical damage to internal piston/valve
Knowledge Base

FAQ - Frequently Asked Questions

What are your prices?
Our prices are subject to change depending on supply and other market factors. We will send you an updated price list after your company contacts us for further information.
Do you have a minimum order quantity?
Yes, we require all international orders to have an ongoing minimum order quantity. If you are looking to resell but in much smaller quantities, we recommend you check out our website for available stock items.
Can you supply the relevant documentation?
Yes, we can provide most documentation including Certificates of Analysis / Conformance; Insurance; Origin, and other export documents where required.
What is the average lead time?
For samples, the lead time is about 7 days. For mass production, the lead time is 20-30 days after receiving the deposit payment. The lead times become effective when (1) we have received your deposit, and (2) we have your final approval for your products. If our lead times do not work with your deadline, please go over your requirements with your sales representative. In all cases we will try to accommodate your needs. In most cases we are able to do so.
What kinds of payment methods do you accept?
You can make the payment to our bank account, Western Union or PayPal: 30% deposit in advance, 70% balance against the copy of B/L.
What is the product warranty?
We warranty our materials and workmanship. Our commitment is to your satisfaction with our products. In warranty or not, it is the culture of our company to address and resolve all customer issues to everyone’s satisfaction.
Do you guarantee safe and secure delivery of products?
Yes, we always use high quality export packaging. We also use specialized hazard packing for dangerous goods and validated cold storage shippers for temperature sensitive items. Specialist packaging and non-standard packing requirements may incur an additional charge.
How about the shipping fees?
The shipping cost depends on the way you choose to get the goods. Express is normally the quickest but also the most expensive way. By sea freight is the best solution for large amounts. Exact freight rates can only be calculated once we know the details of your order weight, quantity, and destination. Please contact us for further information.
Why choose airless glass bottles over plastic airless systems?
Glass provides superior barrier protection, zero organic outgassing, and a premium weight and feel. While plastic airless bottles are functional, glass does not interact with active cosmetic ingredients, preventing degradation and micro-absorption. This makes it the ideal choice for high-end organic skincare and clinical cosmetics.
What customizations are available for bulk airless glass designs?
We offer extensive custom customization, including internal spraying, frosting, silk-screen printing, hot stamping, UV metalizing, and custom molding to create unique bottle shapes. Pumps can also be customized with aluminum sheaths or PCR-PP plastics.
Featured Glass Packaging Series (Bottom Selection)
Custom Skincare Cream Container 30g Glass Jar

Custom Skincare Cream Container 30g Cosmetic Face Eye Cream Glass Jar

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Custom Luxury Cosmetic Packaging 15g Glass jar

Custom Luxury Cosmetic Packaging 15g Glass jar with Aluminum Cap

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High-Quality Mass Market Essential Oil Glass Bottle

High-Quality Mass Market Essential Oil Glass Bottle 5ml to 100ml

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Custom 5g Makeup Square Glass Jar

Custom 5g Custome Makeup Square Glass Jar with Black lid

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High-Quality 5g Low Profile Makeup Empty Glass Jar

High-Quality 5g Low Profile Makeup Empty Glass Jar

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Custom 200g Round Empty Glass Jar

Custom 200g Round Empty Glass Jar for Cosmetic Packaging

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High-Quality 30mL Square Lotion Pump Glass Bottle

High-Quality 30mL Square Lotion Pump Glass Bottle Foundation Container

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China 5ml Hair Oil Vial Glass Bottle With Dropper

China 5ml Hair Oil Vial Glass Bottle With Dropper

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