Lecos Lecos

China Glass Bottles With Closures Manufacturer & Products

Engineered Packaging Solutions for Cosmetics, Personal Care, and Essential Oils. Custom Design & Premium Supply Chain Integration.

Who We Are

Lecos Glass has been dedicated to the glass packaging industry for over 10 years with our innovative wholesale glass bottles and jars for cosmetics, perfume, personal care, essential oils and candle jar glass packaging. We are pride of ourselves in being good at offering bespoken glass bottles to our clients. Basically, we have a large range of glass bottles, jars, and accessories you’ll ever need! Although we have hundreds of products, our collections include:

E-E-A-T Technical Competency: Decades of glass formulations coupled with modern automated quality systems assure high chemical resistance (USP Type I/III equivalents) and precise mechanical interfaces with multi-material closures.

Lecos Glass factory raw glass production and tooling line
Cosmetic glass packaging warehouse and sorting

What We Do

Lecospack provides professional glass cosmetic packaging solutions to the world wide customers. With years of experience in the field, we are capable of providing innovative, stable quality and cost effectively packaging according to the customers’ DNA. The quality of glass products has been strictly controlled, which has won the favor of both domestic and foreign customers, and we work with many brands directly and indirectly. We also offer all kinds of customized deep processing for glass bottles, such as frosting, electroplating, spraying, decal and silkscreen etc. We insist in playing a supportive role in the glass beauty industry.

Consistency is Key

Every batch conforms to rigorous dimensional tolerances and structural standards.

High Quality Shield

High Quality

We utilize state-of-the-art automatic inspection systems to filter optical and structural anomalies down to parts-per-million levels.

Competitive Price Tag

Competitive Prices

Direct-from-source manufacturing paired with optimized regional logistics channels allows us to keep standard pricing competitive.

Excellent Service Star

Excellent Service

From 3D digital prototyping to international customs clearance, our technical consultants guide you at every stage.

10+
Years Experience
100%
Quality Checked
150M+
Bottles Exported
98%
Client Retention

Engineering & Technical Road Map

Precision sealing systems are vital to preserving the chemical stability of cosmetics, botanicals, and therapeutics. Below is an engineering overview of our material compositions, closure mechanics, and design philosophies.

Advanced Material Science of Glass Formulations

Not all glass is created equal. Our factories process raw materials (silica sand, soda ash, limestone) at high furnace temperatures (above 1500°C) to yield different classifications of glass properties:

  • Type I Borosilicate Glass: Boasts a low coefficient of thermal expansion, offering superior chemical resistance, ideal for highly concentrated essential oils and clinical formulations.
  • Type III Soda-Lime Glass: Features balanced chemical resistance and structural density, perfectly suited for mainstream cosmetics, foundations, and skin creams.

Our formulation engineering minimizes heavy metal migration, ensuring full compliance with international standards such as US FDA, EU REACH, and heavy metal limit directives.

Mechanical Engineering of Closures

The closure dictates the preservation performance of the container. We offer custom-designed closures incorporating:

  • Precision Threading: High accuracy thread profiles (GPI, DIN standards) to prevent leakages and gas escape.
  • Advanced Gaskets and Liners: Utilizing PE, PTFE, and silicone configurations customized to the polarity of the liquid inside.
  • Pump & Dropper Assemblies: Calibrated dosage volumes (e.g., 0.2cc to 1.0cc) with internal springs isolated from the product flow to prevent contamination.

Technical Roadmap of Smart Closures and Sustainable Systems

Phase 1: High Recycled Content (PCR Integration)

Up to 50% Post-Consumer Recycled (PCR) glass blends with standard formulations to dramatically lower carbon output without compromising glass clarity.

Phase 2: Monomaterial Refillable Systems

Modular glass jars paired with removable interior cups and recyclable PP/PET closures, supporting circular economy initiatives.

Phase 3: Digital Anti-Counterfeiting & Smart Seals

Integrating NFC or micro-RFID tags directly within the closure structure to verify authenticity and track supply chain transit.

China Supply Chain Resilience & Efficiency Advantages

Why international global brands partner with Chinese manufacturing hubs for glass container integration.

Vertical Integration

Our facilities manage everything from mold design and melting furnaces to advanced decoration methods (frosting, electroplating, spraying, decal, and silkscreen). This limits multi-tier vendor risk and minimizes lead times.

Sourcing Scalability

With automated glass bottle blowing and pressing lines, our production capability scales smoothly from low-volume custom batches to massive millions-unit runs for mass-market product launches.

Logistics Clusters

Located near global shipping ports, our warehouses allow for optimized shipping routes, lower domestic handling costs, and reliable customs processing with pre-validated documentation.

Industrial furnace manufacturing of molten glass
Automated bottle sorting line
Screen printing line for glass decoration

Global Industry Applications

Our glass bottles and custom closures are developed to meet the performance criteria of various industries.

Cosmetics & Luxury Skincare

Jars and dropper assemblies engineered to house acidic, alkaline, or oil-based formulas. Zero chemical leaching protects active components from degradation.

Luxury cosmetic cream jar application

Fine Fragrances

High clarity cosmetic-grade glass features thick base profiles, matching metallic over-caps, and leak-proof atomizers to preserve the top notes of fragrances.

Perfume packaging and fine mist closures

Essential Oils & Aromatherapy

Standard amber and cobalt blue bottles with tamper-evident, child-resistant droppers shield botanical oils from UV radiation and degradation.

Apothecary dropper bottles for botanical oils
Glass bottle inspection before packing

Clinical & Advanced Therapeutics

For chemical and therapeutic products requiring precise dosage delivery, our droppers use specialized NBR/Silicone bulbs, borosilicate glass pipettes, and child-resistant packaging (CR) options. The glass is treated internally to maximize hydrolytic resistance, making it suitable for volatile botanical extracts and diagnostic reagents.

Compliance Standard: ISO 8317 (Child-Resistant Packaging) and US 16 CFR § 1700.20 certified manufacturing protocols.

Our Value

Our company is built on a solid foundation of deeply held values that set us apart, steer our actions, and infuse every aspect of our corporate culture. These values are not just words; they are the principles that guide how we operate daily. Central to our business practices are our unwavering commitment to social responsibility, adherence to ethical standards, and steadfast support for universal human rights. We are also dedicated to protecting the environment and making a positive impact in the communities where we live and work. We believe in fostering creativity and innovation, celebrating and embracing the richness of diversity, and treating our employees with the utmost respect and care, as if they were members of our own family. By upholding these values, we ensure that our company remains a responsible, ethical, and inspiring place to work.

Team members inspecting glass packaging Finished customized product display

PROJECTS' BRANDS

Illuminated by the high aesthetics and elegance of most famous luxury brands

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Frequently Asked Questions

Get detailed answers regarding pricing, quality metrics, lead times, and global shipping policies.

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 contact 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 stock options or direct customer service.

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 sale. 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 most quickest but also most expensive way. By seafreight is the best solution for big amounts. Exactly freight rates we can only give you if we know the details of amount, weight and way. Please contact us for further information.