Lecos
Lecos
Explore our premier engineered glass container lineup, meticulously manufactured to exceed EU REACH and US FDA standard specifications for cosmetic stability, barrier performance, and tactile brand appeal.
In the rapidly shifting global consumer goods ecosystem, packaging is no longer merely a passive vehicle for product containment; it serves as a critical interface for active brand equity, environmental compliance, and formulation integrity. Among the diverse array of volume formats in rigid packaging, the 120ml (4 oz) glass jar has established itself as the operational gold standard across high-tier cosmetic, wellness, pharmaceutical, and artisanal culinary markets.
Environmental regulations, including the EU's Packaging and Packaging Waste Regulation (PPWR), have accelerated the adoption of Post-Consumer Recycled (PCR) content. Modern 120ml glass manufacturing processes in China seamlessly integrate up to 45% cullet (recycled glass) without sacrificing optical clarity, chemical stability, or structural wall strength.
The 120ml volume footprint offers the exact volumetric sweet spot for personal care lines—specifically body butter, heavy overnight masks, hair scalp treatments, and exfoliating scrubs. It provides consumers with a substantial, high-value weight in hand while maintaining efficient shipping density for direct-to-consumer (D2C) e-commerce logisitics.
As clean-beauty formulations eliminate harsh synthetic preservatives, active botanical ingredients become highly vulnerable to oxidation and UV degradation. Type III soda-lime and Type I borosilicate 120ml glass jars deliver zero chemical leaching (extractables and leachables analysis) and can be customized with UV-blocking amber, cobalt, or opaque matte coatings.
When global brand procurement directors and packaging engineers evaluate China 120ml glass jar manufacturers, technical rigor, dimensional tolerance, neck finish standardized threading, and total cost of ownership (TCO) dominate decision-making criteria. Below is an engineering overview of standard 120ml glass specifications designed for automated filling lines.
| Engineering Metric | Standard Specification (120ml / 4 oz) | Quality Tolerance Standard | B2B Sourcing Value |
|---|---|---|---|
| Brimful Capacity | 132ml ± 3ml | ISO 8106 Standard | Prevents overflow during high-speed automated piston filling. |
| Neck Finish (Thread) | GPI/GPI 58-400 or 70-400 Wide Mouth | ±0.35mm Diameter | Ensures universal compatibility with standard metal/bamboo/ABS closures. |
| Glass Type | Super-Flint Soda-Lime / Borosilicate | Directive 94/62/EC Compliant | High transparency index (>89%) for luxury product presentation. |
| Thermal Shock Resistance | ΔT ≥ 42°C | ASTM C149 Standard | Withstands hot filling (e.g., molten balms, candles) without fracture. |
| Internal Pressure & Heavy Metal | Passes FDA 21 CFR 177 & REACH | Pb / Cd < 5 ppm | Guarantees complete safety for cosmetic and pharmaceutical use. |
Sourcing behaviors vary across global geographic markets. North American enterprise buyers prioritize massive scale, quick turnarounds for seasonal promotional SKUs, and strict compliance with California Proposition 65. European brand owners demand high percentages of PCR glass, minimal transportation carbon footprint, and complex decoration such as soft-touch matte spraying and chemical etching. Meanwhile, APAC buyers require ultra-flexible Minimum Order Quantities (MOQs) combined with rapid prototyping for fast-paced consumer testing cycles.
China's glass packaging manufacturing sector has undergone a profound technological transformation. The era of labor-intensive, energy-inefficient glass blowing has been replaced by fully automated Industry 4.0 smart factories equipped with electric-assisted melting furnaces, automatic IS (Individual Section) forming machines, and AI-powered optical inspection units.
High-speed camera vision systems inspect 100% of manufactured 120ml glass jars on the conveyor belt. Micro-cracks, air bubbles, check marks, and neck thread deviations are detected in real-time at speeds exceeding 300 units per minute, reducing defect rates to below 50 PPM (parts per million).
China's manufacturing clusters (e.g., Zhejiang, Jiangsu, and Shandong packaging hubs) offer complete supply chain integration within a 50km radius. Mould design, glass forming, chemical frosting, UV silk-screen printing, vacuum metallization, and lid manufacturing are seamlessly coordinated.
By utilizing standardized 120ml master moulds and automated warehouse logistics, Chinese manufacturers achieve sample development cycles of 7 to 10 days and mass production lead times of 20 to 30 days, providing global buyers with unmatchable speed-to-market advantages.
Lecos Glass has been dedicated to the premium glass packaging industry for over 10 years with our innovative wholesale glass bottles and jars for cosmetics, perfume, personal care, essential oils, and candle packaging. We pride ourselves on offering bespoke glass solutions tailored precisely to client brand DNA.
Basically, we have a comprehensive range of glass bottles, jars, and closure accessories you will ever need! Although we manufacture hundreds of SKUs, our specialized core collections include:
Lecospack provides professional glass cosmetic packaging solutions to worldwide customers. With years of field experience, we supply stable quality and cost-effective packaging according to our customers' DNA. We offer all kinds of customized deep processing for glass containers, such as frosting, electroplating, spraying, decal printing, and silk-screen decoration.
Our company is built on a solid foundation of deeply held values that guide our daily operations. 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 dedicated to protecting the environment and making a positive impact in the communities where we live and work. We foster creativity and innovation while treating our employees with utmost respect and care.
The versatility of the 120ml glass jar format spans several high-value commercial sectors. Our specialized manufacturing lines adapt to distinct functional and aesthetic demands across these industries:
Widely utilized for rich night creams, body butter, and clay detox masks. Wide-mouth designs (58mm/70mm neck) allow effortless finger scoop accessibility, while heavy base glass molding conveys premium elegance.
Ideal for 4 oz pour-weight scented soy or beeswax candles. High thermal shock resistance protects against stress fractures during wax cooling and flame burning, making them staple items for boutique spa brands.
Equipped with airtight seals and induction liners, amber 120ml glass jars safeguard topical ointments, herbal tinctures, and nutraceutical powders against moisture ingress and actinic light damage.
Used by gourmet food producers for small-batch preserves, saffron honey, caviar, and organic nut butter. Glass preserves pure taste profiles without chemical migration inherent in lesser grade plastics.
Illuminated by the high aesthetics and elegance of the world's most famous beauty and personal care brands.
In addition to 120ml glass jars, our industrial manufacturing lines produce complementary glass container sizes and dropper bottle configurations to complete your product line architecture.
Find structured technical answers to common international procurement, customization, lead time, and compliance inquiries.
Discover our secondary curated container range engineered for custom face creams, serum formulations, and premium makeup applications.
