Custom Transparent Flat Square Glass Dropper Serum Bottles 30-120ml

Custom Transparent Flat Square Glass Dropper Bottles – 30ml, 50ml, 100ml and 120ml

Explore Boyu’s glass dropper bottle range, compare essential oil packaging, browse all cosmetic packaging products, or learn more about Boyu Packaging’s OEM capabilities.

Core Product Specifications

Product Highlights

• Distinctive shelf profile: the flat rectangular body looks more architectural than a conventional round Boston bottle.
• Four practical capacities: 30ml and 50ml suit facial treatments, while 100ml and 120ml support hair oils, body oils and professional-use formats.
• Formula visibility: clear glass lets customers see the fill color and remaining volume.
• Controlled application: the pipette helps users dispense a measured amount without pouring directly from the bottle.
• Large branding panels: the flat front and back surfaces provide useful space for logos, product names and labels.
• Premium material feel: glass offers clarity, weight and a high-end tactile impression for skincare and beauty collections.

Capacity and Format Guide

Nominal capacity should be distinguished from brimful capacity and recommended filling volume. Formula density, required headspace and pipette displacement all influence the actual fill level. Importers should approve a capacity test with the final dropper assembly before production.

Glass Compared with Common Packaging Materials

Material Advantages and Limitations

Advantages

• Glass does not absorb oils easily and supports a clean, premium consumer experience.
• The rigid flat body protects the printed panel from the flexing seen in soft plastic containers.
• Clear glass is easy to decorate, label and color-spray for different product families.
• The bottle can be recyclable where local glass collection accepts cosmetic containers.

Limitations

• Glass requires protective packing and careful transport because it can chip or break.
• A rectangular bottle is described by height, width and depth—not diameter.
• Clear glass does not give strong light protection; sensitive formulas may require amber color, coating or secondary packaging.
• The dropper is not ideal for very thick creams, particle-filled formulas or products that can attack rubber components.

Custom Color, Logo and Surface Decoration

The standard presentation is transparent glass, but spraying can create opaque, translucent, gradient, frosted-look or brand-color finishes subject to sample approval. Silk-screen printing is suitable for logos, product names and simple regulatory copy. Buyers may also ask Boyu to evaluate hot stamping, labels or other decoration where the bottle geometry and order quantity allow it.

• Artwork: supply an editable vector file with fonts outlined.
• Color: use Pantone references and approve a physical color sample under controlled lighting.
• Print area: confirm the printable flat panel and keep fine text away from edges and corner radii.
• Durability: agree on ink adhesion and abrasion tests, especially for oily formulas and bathroom use.

Dropper Design, Sealing and Convenience

A complete dropper normally includes a cap, rubber bulb and glass pipette. Pressing and releasing the bulb draws liquid into the pipette; a second press dispenses it. The pipette length must suit the selected bottle so it reaches near the bottom without touching or stressing the glass base.

Leak resistance depends on the whole package: neck finish, cap thread, wiper or sealing land, bulb fit, pipette assembly, closure torque, fill level and formula compatibility. The term “rubber stopper” should therefore be confirmed as a screw-on dropper assembly rather than interpreted as a simple push-in stopper.

How Leakage Risk Is Controlled

1. Match the cap and sealing component to the exact bottle neck finish.
2. Confirm pipette length, bulb suction and dispensing volume on assembled samples.
3. Apply the specified closing torque and check thread engagement.
4. Run inverted storage and pressure or vacuum tests under agreed conditions.
5. Test the real formula with glass, rubber, plastic cap and pipette for the intended shelf life.
6. Use dividers and protective export packing to prevent impact damage in transit.

Suitable Products and Markets

Manufacturing Process

1. Project definition: capacity, shape, glass color, neck, dropper and decoration are confirmed.
2. Glass forming: molten glass is formed in the selected mold and transferred through controlled cooling.
3. Base inspection: bottles are checked for critical dimensions, capacity and visible defects.
4. Decoration: spraying and silk-screen printing are applied to approved color and artwork standards.
5. Component matching: caps, bulbs and pipettes are assembled or packed with the correct bottle size.
6. Final inspection: appearance, print, closure fit and packing are checked before shipment.

Quality Inspection

Boyu Packaging describes a quality system covering incoming materials, production inspection, finished-product checks, packing inspection and pre-shipment review. A project-specific control plan for this bottle may include:

• Capacity, height, width, depth, neck and bottle-weight checks
• Inspection for cracks, chips, sharp edges, stones, severe bubbles and deformation
• Flat-panel symmetry, standing stability and wall-distribution review
• Spray-color comparison, print registration and adhesion testing
• Dropper fit, pipette length, suction function and closure-torque checks
• Leak testing and export-carton drop or transport simulation as agreed

Importers should establish the acceptable quality level, defect classification and approved limit sample before mass production. Cosmetic packaging suitability must be evaluated against the destination market’s regulations and the buyer’s final formula.

Safety, Sustainability and Reuse

Glass is chemically stable for many cosmetic and oil-based formulas and can be recycled in markets with appropriate collection systems. The bottle can also incorporate recycled glass subject to appearance and performance requirements. The dropper assembly combines glass, rubber and plastic or metal components, so separation may be necessary before recycling.

The glass bottle itself can potentially be cleaned and reused, but commercial refill claims require a validated cleaning, drying and contamination-control process. Rubber bulbs and pipettes can retain residue and may need replacement. For consumer safety, reuse should not be promoted without compatibility and hygiene testing.

MOQ, Price and Quote Factors

The stated minimum order quantity is 10,000 pieces per design. If an order contains several capacities, spray colors, logos or dropper styles, confirm whether each combination is treated as a separate SKU and MOQ.

Price depends on the selected bottle mold, capacity, glass weight, closure material, bulb material, pipette, color spraying, number of print colors, assembly method, quantity, packing and Incoterm. A responsible factory quotation requires a complete specification; a marketplace reference price may not include the same decoration, closure quality or export packing.

OEM/ODM Ordering Process

1. Send the brief: required capacity, formula, quantity, destination, reference images and target date.
2. Select the structure: confirm bottle mold, neck finish, dropper, bulb color and pipette length.
3. Review quotation: compare bottle, dropper, decoration, packing, tooling and freight separately.
4. Approve drawing and artwork: sign off all dimensions, print areas, colors and tolerances.
5. Test samples: evaluate appearance, filling, formula compatibility, suction and leakage.
6. Mass production: production starts after sample, artwork, payment and commercial terms are approved.
7. Inspection and shipment: finished goods are checked, packed and dispatched under the agreed Incoterm.

Is a New Mold Required?

A new mold is normally unnecessary when an existing 30ml, 50ml, 100ml or 120ml bottle meets the required dimensions and neck specification. Tooling may be required for a proprietary shape, custom embossing, unusual neck or major dimensional change. Mold cost, sample rounds, ownership, maintenance and development time should be quoted separately.

Production Time and Logistics

Production timing should be confirmed after the exact decoration and component availability are known. Existing clear bottles with simple printing are generally faster than custom spray colors, complex decoration or newly tooled designs. Buyers should allow time for samples, formula tests, artwork approval, production, inspection and export transit.

Glass is dense and fragile, so freight and protective packing materially affect landed cost. Request the pieces per carton, carton dimensions, net/gross weight, pallet plan and loading quantity before choosing courier, air freight, LCL or full-container sea freight. Cartons with partitions and optional pallets can reduce collision and handling damage.

After-Sales Support

The purchase contract should identify the approved sample, defect standards, inspection method, claim period and remedy procedure. If a quality issue occurs, retain the outer cartons and affected products, then provide the order number, batch information, quantities, photos or video and filling conditions. This evidence helps Boyu trace the lot and assess replacement, credit, rework or another agreed solution.

Importer Checklist

• Request the exact drawing for every capacity; do not scale dimensions from photos.
• Confirm recommended fill, brimful capacity and pipette displacement.
• Specify the formula viscosity and required dose before choosing the pipette.
• Test real product against glass, bulb, cap and pipette.
• Approve spray color, print position and adhesion on a physical sample.
• Confirm MOQ for each capacity, color, artwork and closure combination.
• Clarify whether the quote is EXW, FOB, CIF or DDP.
• Calculate landed cost using final carton and pallet data—not the platform’s single-item package figures.

Frequently Asked Questions

What capacities are available?

The collection is available in 30ml, 50ml, 100ml and 120ml. Exact dimensions and glass weight must be confirmed for each mold.

What is the MOQ?

The MOQ is 10,000 pieces per design. Different sizes, colors or logos may be treated as separate designs.

Can the bottle color and logo be customized?

Yes. Boyu supports custom spraying and silk-screen printing. Color, finish, artwork and print position should be approved on samples.

Is clear glass suitable for essential oils?

It may be suitable for some formulas, but clear glass offers limited light protection. Light-sensitive oils should be evaluated in amber glass, coated glass or protective secondary packaging.

Can it be used for perfume?

It is better suited to perfume oils or concentrated fragrance oils. Standard alcohol-based perfume normally uses a fine-mist sprayer rather than a dropper.

Is the bottle leakproof?

Reliable sealing is achievable with a matched neck and dropper, controlled torque and proper testing. No package should be called universally leakproof before it is tested with the final formula and shipping conditions.

What are the height, width, glass thickness and weight?

These values depend on the selected capacity and mold and were not supplied as confirmed specifications. Request an approved drawing and sample before ordering.

Can the bottle be reused or recycled?

Glass may be recyclable where local facilities accept it. Reuse is possible only when cleaning, drying and hygiene procedures have been validated; the dropper may require replacement.

How can I get an accurate quotation?

Send the required capacities, quantity per SKU, formula type, dropper style, bulb and cap colors, decoration artwork, destination and Incoterm. Boyu can then quote the correct bottle, closure, printing and export packing.