CUSTOM SERVICE
Jarsking
Jarsking is a leading dropper bottle manufacturer with over 20 years of specialized expertise in precision glass dropper bottle design and production. We deliver custom dropper solutions featuring universal thread compatibility, food-grade construction, and child-resistant mechanisms for cosmetics, pharmaceuticals, essential oils, and skincare applications globally.
Dark amber and cobalt blue glass construction specifically designed to protect light-sensitive essential oils from degradation. The colored glass filters harmful UV rays while maintaining the therapeutic properties and potency of delicate aromatic compounds.
Controlled drop mechanism with specially engineered needle tips that dispense uniform drops (approximately 0.05mL per drop). This precise application prevents waste of expensive essential oils and allows for accurate dilution ratios in aromatherapy blends.
Food-grade glass material with chemically inert properties that won't react with potent essential oil compounds. Anti-corrosion dropper components using Silicone Rubber and Nitrile Rubber (NBR) ensure long-term compatibility with various oil viscosities.
Multiple capacity options from 5ml to 100ml with color-coded caps and bottles for easy identification of different oil types. Leak-proof sealing systems prevent evaporation of volatile compounds during storage.
Contamination-free dispensing system that eliminates direct finger contact with product, maintaining sterility of sensitive serums and treatments. Tamper-evident caps provide additional safety assurance for premium formulations.
Frosted glass finishes and gradient designs that convey luxury positioning for high-end skincare brands. Modern geometric shapes including square and bell-shaped bottles create distinctive brand identity.
Dual-phase mixing mechanisms for products requiring activation before use, with controlled dispensing for expensive active ingredients like retinoids and peptides. Drop-by-drop application ensures optimal product efficacy.
UV-filtering glass in amber, green, and violet options specifically designed to preserve vitamin C, peptides, and other photosensitive skincare actives. Enhanced stability extends product shelf life and maintains potency.
Thicker-walled glass construction designed to handle oil-based CBD formulations and alcohol tinctures without degradation. Specialized dropper assemblies accommodate varying viscosities from thin tinctures to thick CO2 extracts.
Graduated dropper markings allowing precise measurement of CBD dosages for consistent therapeutic effects. Drop consistency ensures reliable milligram dosing for medical marijuana products.
Compliant labeling space with clear visibility for required CBD content warnings, dosage instructions, and batch tracking information. Tamper-evident seals meet state cannabis packaging regulations.
Airtight sealing systems that minimize oxidation of cannabinoids and maintain product potency throughout shelf life. Dark glass options protect light-sensitive terpenes and prevent degradation.
High-quality glass with weighted feel and crystal clarity that communicates luxury positioning. Frosted and gradient finish options provide sophisticated tactile experience and visual appeal for gift recipients.
Multiple decoration techniques including silk screening, electroplating, color coating, 3D printing, and hot stamping for personalized gift presentations. Custom shapes and gradient finishes create memorable unboxing experiences.
Coordinated packaging systems with matching boxes and protective inserts designed for luxury gift presentation. Color-themed collections allow curated gift sets with complementary product lines.
100% recyclable glass construction appealing to environmentally conscious gift recipients. Reusable bottle design encourages repurposing for personal aromatherapy or skincare applications.
Glass dropper bottles are a premium solution for precision dispensing, combining functionality with exceptional product protection. Crafted from high-quality borosilicate or soda-lime glass, they offer a non-porous, chemically inert barrier that resists contamination and preserves product integrity over time. With superior chemical resistance and excellent storage stability, glass dropper bottles are ideal for essential oils, serums, pharmaceuticals, and high-value cosmetic formulations—where purity and performance truly matter.
Plastic dropper bottles provide a lightweight, shatter-resistant solution ideal for travel, fieldwork, and budget-conscious applications. Made from food-grade materials such as HDPE, LDPE, and PET, they meet safety standards while offering practical advantages. These bottles are especially well-suited for children’s formulations, travel-sized products, and outdoor environments where durability and safety are essential.
Small dropper bottles are engineered for precision dosing of concentrated formulations, making them the industry standard for facial serums and essential oils. These compact sizes ensure optimal product freshness by minimizing air exposure while providing travel-friendly portability.
Medium-sized dropper bottles provide the perfect balance between usability and volume, making them highly popular in the U.S. market for essential oils and wellness products. These sizes offer extended usage periods while maintaining controlled dispensing precision.
Large dropper bottles serve professional and bulk applications where extended use periods and refillable packaging are priorities. While less common in luxury skincare, they excel in professional treatments and body care formulations.
At Jarsking, rigorous quality testing ensures every dropper bottle meets the highest industry standards for safety, functionality, and durability. Our comprehensive testing protocols systematically validate product integrity, dispensing accuracy, and material compatibility across pharmaceutical, cosmetic, and essential oil applications worldwide.
Comprehensive appearance evaluation examines dropper bottles for surface defects, wall thickness uniformity, and color consistency under bright natural light. Inspectors check for air bubbles, cracks, mold seam integrity, and thread smoothness on bottle necks. Advanced optical scanning detects dimensional deviations exceeding ±1.5mm, ensuring structural stability and proper closure fitment for premium packaging applications.
Precise measurement verification uses automated 3D imaging systems to compare dropper bottles against digital blueprints. Thread specification testing confirms DIN18, DIN20, DIN22, and DIN24 compatibility with closure systems. Dimensional tolerances ensure proper fitment, sealing performance, and compatibility with automated filling equipment. This testing prevents manufacturing variations that could affect functionality and user experience.
Vacuum leak testing evaluates the integrity of dropper bottle sealing systems by placing bottles in a vacuum chamber at -0.08 MPa for 20 minutes. This test ensures no air ingress or product leakage occurs during storage and transportation. Pressure decay methods detect microscopic leaks by monitoring pressure changes, critical for maintaining product sterility and preventing contamination in pharmaceutical and cosmetic applications.
Mechanical strength evaluation subjects dropper bottles to vertical load testing, internal pressure testing, and thermal shock conditions. Bottles undergo gradually increasing compressive loads until failure to determine maximum strength thresholds. Temperature cycling tests validate resilience under extreme conditions, simulating real-world shipping and storage stresses. This ensures bottles maintain structural integrity throughout their lifecycle.
Material compatibility assessment subjects dropper bottles to filled product storage for 30, 60, and 90 days under various conditions: 45°C oven, 5°C refrigeration, normal temperature, and light exposure. This testing evaluates glass chemical inertness and plastic stability against essential oils, pharmaceuticals, and cosmetic formulations. Results verify no discoloration, cracking, or chemical leaching that could compromise product integrity.
Light filtration efficiency analysis measures amber and colored glass bottles’ ability to block harmful wavelengths between 300-500 nm using spectrophotometers. This testing validates UV protection claims essential for light-sensitive essential oils, pharmaceuticals, and cosmetic formulations. Consistent color density and light-blocking performance ensure product stability and extended shelf life for photosensitive contents requiring protection from degradation.
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