ZJ Pack 24-410 Patented Variable Dispensing PP Slim Serum & Treatment Pump with External Spring & Adjustable Dosage (0.35cc - 0.48cc)

What this packaging is

An external spring that never touches the formula — that's the detail that makes this pump genuinely different. The 24-410 Patented Variable Dispensing PP Slim Serum & Treatment Pump keeps its spring mechanism fully outside the pump body, making it compatible with oil-based formulations where metal contact is a real concern. A simple twist of the head lets you dial between 0.35cc and 0.48cc output, giving brands meaningful dose control across face serums, moisturizers, hair treatments, and cleansers. The slim, glossy collar reads premium on shelf, with electroplating and spray coating available for custom finishes. For brands building around precision and clean formulation integrity, this pump delivers both.

Why brands choose this

• Oil-safe external spring unlocks new formula territory: The spring mechanism sits completely outside the pump body, eliminating metal-to-formula contact — a critical feature for brands formulating oil-based serums, facial oils, or treatment blends where conventional pumps can compromise formula stability or consumer safety.
• Adjustable dosage gives brands and consumers real control: A clockwise twist delivers a precise 0.35mL low-dose output; counterclockwise opens to 0.48mL — giving product developers flexibility across viscosities and application rituals, and giving consumers the kind of dose transparency that aligns with the growing demand for intentional, waste-free skincare use.
• Slim profile and decoration versatility support premium positioning: The slim silhouette and glossy collar finish pair naturally with elevated serum and treatment aesthetics, and compatibility with electroplating and spray coating means brand teams can achieve a custom, shelf-ready look without a secondary packaging vendor.

Decoration