30ml Serum Bottle（JH-32Y）

This 30ml glass bottle with elegant round shoulder lines is a high-end and practical packaging solution, specially developed for liquid beauty products such as skincare essences, pure essential oils and various cosmetic liquid formulations. Different from conventional straight bottle shapes, its smooth and rounded shoulder design softens the overall visual effect, presents a delicate, elegant and minimalist texture, and effectively enhances the grade and market competitiveness of finished products. The reasonable 30ml capacity is neither too bulky nor too small, perfectly meeting daily home use, portable travel storage and commercial bulk packaging demands.
The bottle is equipped with a high-quality 20-tooth alumina dropper assembly with standardized and professional accessory configuration. The complete matching parts include PP inner lining, durable alumina shell, 50° trapezoidal NBR rubber cap and low-borosilicate round-head glass tube. Every component adopts cosmetic-grade safe materials, with stable physical and chemical properties, which can perfectly adapt to the storage characteristics of active skincare ingredients and ensure the safety and stability of internal contents.
The low-borosilicate round-head glass tube features high transparency, corrosion resistance and chemical inertness, which will not react with essences and essential oils, effectively maintaining the purity and activity of product ingredients. The food-contact PP inner lining achieves a tight fit with the bottle mouth, enhancing overall airtightness. The premium alumina shell boasts excellent wear resistance, oxidation resistance and metallic texture, upgrading the product’s high-end appearance. The customized 50° trapezoidal NBR rubber cap provides outstanding oil resistance and sealing performance to prevent liquid volatilization, oxidation and deterioration.
In terms of customized production, this product has clear minimum order quantity requirements for customized caps: the minimum order quantity for electroplated rubber caps is 50,000 pieces, and the minimum order quantity for special-color rubber caps is also 50,000 pieces. With exquisite appearance, stable structure and safe materials, this 30ml round shoulder bottle is an ideal packaging choice for high-quality skincare and aromatherapy cosmetic products.