Calaso Smooth 53-400 Straight Sided Flat Threaded Closure

What this packaging is

A 53-400 neck finish is one of the most widely used standards in beauty and wellness packaging, and this Smooth 53-400 Straight Sided Flat Threaded Closure from Calaso delivers a clean, glossy PP cap that works across an impressive range of end uses — lip balm, eye cream, face moisturizer, body scrub, hair treatment, body lotion, vitamins, pills, and gummies. The straight-sided flat profile keeps branding real estate uninterrupted and the aesthetic minimal. Manufactured in Europe with Calaso's rigorous closure expertise, it's built for brands that need a reliable, polished seal without overcomplicating their component sourcing. With minimums starting at just 50 units, it's genuinely accessible for emerging brands or limited-edition launches.

Why brands choose this

• Exceptionally low MOQ opens real flexibility: At just 50 units minimum, this closure removes the usual inventory risk from new product launches, seasonal editions, or small-batch wellness lines — rare for a made-to-order European-manufactured component.
• One closure, nine end-use categories: The 53-400 thread standard and clean flat top make this cap compatible across lip balm, face moisturizer, body scrub, hair treatment, vitamins, gummies, and more — giving multi-SKU brand teams a single closure solution they can range efficiently.
• Straight-sided flat form keeps branding front and center: The uninterrupted sidewall and flat top provide a consistent surface for labels, hot stamp, or screen print, supporting a cohesive shelf aesthetic whether the brand is clinical, clean beauty, or wellness-forward.

Finishes