100ML round-shoulder bottle（SF-57S4）

This premium 100ml cosmetic bottle is designed with smooth, rounded shoulder lines, abandoning sharp and angular designs to create a soft, sleek and integrated bottle silhouette. The fluent curved shoulder transitions naturally to the bottle body, delivering a minimalist, gentle and high-end visual effect that fits modern skincare packaging aesthetics. With a compact and exquisite overall structure and a standard 100ml capacity, it perfectly balances portable carrying size and sufficient daily storage volume, suitable for household daily skincare, business retail display and outdoor travel use. The streamlined and versatile bottle shape is compatible with various brand styles, featuring strong practicability and aesthetic appreciation.

The bottle is equipped with a durable full-plastic flat top cap with a multi-layer composite sealing structure for stable and reliable performance. The outer cap adopts high-quality ABS material, which boasts high hardness, scratch resistance and structural stability, effectively protecting the internal structure and maintaining a long-term neat appearance. The matched PP inner lining ensures precise thread fitting and firm assembly. Combined with a PE inner plug and a professional PE 300-times physical foaming gasket, the cap forms an efficient airtight sealing system. The foamed gasket features uniform density, excellent resilience and tight fitting performance, which effectively isolates external air, dust and moisture, preventing liquid leakage, volatilization and product oxidation.

Manufactured with strict cosmetic-grade safe materials, this bottle is specially tailored for low-viscosity water-based skincare products. It is ideal for packaging facial toners, pure floral waters, moisturizing mists and other soothing skincare liquids. All liquid-contact accessories are non-toxic, odorless and skin-friendly, fully compliant with international cosmetic safety standards. The smooth bottle body supports diverse personalized customizations, including screen printing, hot stamping and labeling to enrich brand characteristics. Integrating elegant rounded shoulder design, superior leak-proof sealing, durable material quality and wide applicability, this 100ml full-plastic capped bottle is a classic, cost-effective and versatile packaging solution for skincare brands.