30ml Serum Bottle（JH-248G）

This 30ml round step essential bottle is an exquisite and practical cosmetic packaging container tailored for high-end skincare liquid products. Adopting a classic round bottle body combined with a unique step-shaped structural design, it perfectly integrates minimalist aesthetics and functional practicality. The overall outline is smooth and elegant, abandoning overly complicated decorations, and presents a high-grade and textured visual effect. The specially designed step structure not only enhances the layered sense of the bottle appearance, but also optimizes the assembly fit with matching dropper accessories, ensuring stable installation and convenient daily opening and closing operation. With a standard 30ml moderate capacity, it is suitable for daily household use, commercial mass sales and sample packaging.
This versatile bottle is widely applicable to the packaging of skincare essences, pure essential oils and other high-activity liquid beauty products, and can well preserve the original texture and efficacy of cosmetic ingredients. It is professionally equipped with a high-quality PETG dropper assembly with complete and standardized accessory configurations, including a PETG middle bundle, 18-tooth NBR rubber cap and low-borosilicate round-head glass tube. All accessories adopt cosmetic-grade safe materials with excellent comprehensive performance, fully complying with beauty packaging safety standards. The PETG middle bundle features high transparency, strong toughness and outstanding chemical stability, resisting corrosion from various essence and essential oil ingredients.
The 18-tooth NBR rubber cap provides excellent elasticity, abrasion resistance and aging resistance, forming a tight and airtight sealing structure to effectively prevent liquid leakage, volatilization and external air penetration, avoid ingredient oxidation and deterioration, and effectively extend the product shelf life. The matched low-borosilicate round-head glass tube has stable chemical inertness, will not produce chemical reactions with skincare liquids, and fully protect the activity and purity of internal contents. Boasting elegant stepped round modeling, stable material quality, excellent sealing performance and wide applicability, this 30ml bottle is an ideal high-cost-performance packaging solution for mainstream essence and essential oil products in the beauty industry.