Idealpak 4oz/120ml 56-400 PET Single Wall Straight Sided Cosmetic Jar

What this packaging is

Straight-sided geometry and a wide 56-400 neck finish make this 4oz/120ml PET cosmetic jar a natural fit for thick, texture-forward formulas. The flat, vertical walls maximize label real estate, giving brands a clean canvas for bold graphics or minimalist design. At 2.44 inches tall and 2.36 inches in diameter, the proportions are compact enough for countertop display while roomy enough for generous fill weights. The 56-400 finish works with a broad range of closures, keeping sourcing simple across product lines. Built for hair gels, pomades, and treatments, this jar is a practical, shelf-ready choice for brands building a cohesive hair care range.

Why brands choose this

• Maximum label canvas for stronger shelf branding: The straight-sided profile runs flat and vertical from base to shoulder, giving brand teams significantly more uninterrupted label surface than tapered or contoured alternatives. In a crowded hair care aisle, that real estate translates directly into a clearer brand story at shelf.
• Wide 56-400 neck finish designed for thick, high-viscosity formulas: Hair gels, pomades, and conditioning treatments need a wide opening for easy filling and clean scooping at point of use. The 56-400 neck accommodates a broad selection of standard closures, reducing tooling complexity when ranging across multiple SKUs.
• Format that matches the ritual: Jar formats are strongly associated with pomades and styling treatments in consumer perception, signaling a hands-on, intentional application experience. As the hair care market continues shifting toward ingredient-forward, premium positioning, a well-proportioned PET jar helps brands visually anchor their products in that trend without overcomplicating the package design.