Serum Bottle Dropper Supplier

Serum Bottle Dropper Supplier for Skincare and Essential Oil Packaging

GreenYard Tools Co.,ltd. is a China-based serum bottle dropper supplier and OEM cosmetic dropper factory. We manufacture dropper closures in PP and PE, with tamper-proof, aluminium, bamboo-collar and press-twist designs, for serum, oil, essential oil and other concentrated liquid products. Our dropper range is part of a broader daily chemical packaging line that includes Crimp Pump, Fine Mist Sprayer and Lotion Pump components.

Our Dropper Range and Application Fit

We produce eight dropper configurations for personal care, cosmetic and pharmaceutical liquid packaging. Each model is selected by bottle neck size, closure style, material and the required user experience.

Materials and Sealing Performance

Our droppers are primarily constructed from environmentally friendly PP and PE. These materials are selected for durability, processability and compatibility with many personal care formulas. For sensitive formulations, glass pipettes are available in aluminium and glass dropper models to reduce interaction with plastic.

Sealing is a core design focus. We use advanced sealing technology and high-quality materials to help prevent liquid leakage during filling, storage, transport and use. Final sealing performance depends on bottle neck fit, cap torque, filling process, liquid formula, storage environment and transport conditions. We confirm these variables during sample evaluation.

Critical Specifications and Configuration Options

Dropper selection is driven by bottle interface, liquid characteristics and user experience. We configure each dropper around the following parameters:

• Neck size: 18-415 and other sizes; confirmed against the bottle neck and closure structure.
• Closure type: ribbed, smooth or matte finishes for grip and brand aesthetics.
• Pipette material: PP/PE, glass or aluminium options depending on formula compatibility.
• Dispensing control: pipette length, bulb volume and tip geometry set the drop size and dosage feel.
• Tamper evidence: tamper-proof bands and press-twist mechanisms for retail and travel formats.
• Color and finish: custom color matching, UV finish and decorative collar options.

Manufacturing and Quality Control

GreenYard Tools Co.,ltd. has 16 years of experience in spray product and daily chemical packaging manufacturing. Our factory operates a modern production base exceeding 20,000 square meters with 60 injection molding machines and 120 automatic assembly machines. Daily capacity reaches one million units, supported by 5 engineers and 20 QC personnel.

We implement an ISO 9001 quality management system covering raw materials, production and finished goods. Inspection is conducted after each production step, and 100% of finished products undergo final inspection in accordance with client requirements and international standards. Our product batch qualification rate consistently exceeds 99.5%. Certifications include ISO (2016), REACH and FDA (2018), High-Tech Enterprise (2021), Global Recycled Standard (2023) and SMETA social responsibility (2024).

Installation, Filling and Line Integration

Droppers are supplied as ready-to-assemble components for filling lines. We confirm bottle neck dimensions, cap torque settings and filling nozzle clearance before production. For automated lines, we provide samples for trial runs to verify pick-and-place, capping and torque performance.

Operators should verify that the dropper is fully seated and that the tamper band is intact after capping. We recommend storing droppers in sealed packaging away from direct sunlight and moisture before filling.

Customization and OEM Support

Customized production is one of our core services. We develop and manufacture droppers based on drawings or samples, covering structural design, material selection, color matching and process optimization. Our design team supports appearance, function and material variations to align with brand positioning.

We have provided customized packaging for over 500 clients. For serum bottle dropper projects, we can discuss calibrated pipette structures, bottle matching and dispensing requirements according to the actual formula and filling process.

Information We Use to Configure Your Solution

To prepare an accurate dropper configuration and quotation, we need the following project inputs:

• Bottle neck size and thread specification (e.g., 18-415).
• Liquid type, viscosity and compatibility requirements.
• Target fill volume and desired drop size or dosage.
• Closure style, material and color preferences.
• Tamper-evident or child-resistant requirements.
• Annual volume, order frequency and packaging format.
• Destination market and any labeling or compliance needs.

Frequently Asked Questions

What dropper sizes do you manufacture?

We produce droppers in 18-415 and other sizes, with ribbed, smooth and matte closures. Size selection is confirmed against the bottle neck and closure structure.

Can you supply droppers for serum bottles with calibrated dispensing?

Yes. We can discuss calibrated dropper structures for serum bottles based on bottle size, target dispensing experience, pipette structure and material needs. Actual performance is confirmed through sample testing.

What materials are used in your droppers?

Our droppers are primarily made from PP and PE. Glass pipettes and aluminium collars are available in specific models for sensitive formulations and premium positioning.

Do you support custom colors and finishes?

Yes. We offer custom color matching, UV finishes and decorative collar options. Customization is subject to mold availability and technical evaluation.

How do you ensure leak-proof performance?

We use advanced sealing technology and high-quality materials. Final leak-proof performance depends on bottle fit, cap torque, filling process and transport conditions. We verify these factors during sample evaluation.

What is your production capacity and lead time?

Our daily capacity reaches one million units. Lead time is confirmed during quotation based on order volume, customization requirements and current production scheduling.

For serum, oil and essential oil packaging projects, Serum Bottle Dropper Supplier from GreenYard Tools Co.,ltd. combines in-house mold design, injection molding and automated assembly with full-process quality control. Products across our daily chemical packaging range are available for multi-category sourcing.