ZJ Pack 20-410 PP Slim Serum Pump, 0.23cc Dosage with External Spring & Domed Clear Overcap

What this packaging is

Precision-dosed at 0.23cc per stroke, the 20-410 PP Slim Serum Pump is engineered for formulation integrity — its external spring sits completely outside the pump body, meaning zero metal-to-product contact. That's a meaningful detail for brands working with sensitive serums, actives-heavy foundations, or eye creams where contamination risk matters. The domed clear overcap adds a polished, retail-ready finish while protecting the pump between uses. Built from polypropylene with a 20-410 neck finish, it fits across a wide range of bottles used for face serum, primer, BB cream, and more. Customizable via electroplating, spray coating, or water transfer printing, this pump gives mid-to-large brands room to own the full aesthetic.

Why brands choose this

• External spring: zero formula contact: The spring mechanism sits fully outside the pump body — a critical design advantage for brands formulating with oxidation-sensitive actives, acids, or natural ingredients where metal exposure could compromise stability or consumer safety.
• Dose control built for serum and treatment formats: At 0.23cc per actuation, this pump delivers consistent, measured doses that reduce product waste and reinforce consumer confidence — directly aligned with the growing expectation for efficacy-led, precision-application skincare formats.
• Decoration versatility for standout shelf presence: Compatible with electroplating, spray coating, and water transfer printing, this pump can be finished to match nearly any brand aesthetic — from clinical minimalism to luxe metallics — without needing a custom-tooled component.

Decoration