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Lip Balm Sticks
Lip balm sticks use a compact twist-up mechanism to raise and retract solid lip care formulas for direct application. The internal cup must grip the balm securely, while the screw mechanism should operate smoothly across the expected temperature range. These packages are suitable for lip balm, lip treatment, solid sunscreen, and similar wax-based products. Formula shrinkage, hot-fill temperature, cooling process, cup diameter, cap retention, mechanism torque, material compatibility, portability, labeling area, molded color, printing, and decoration should be tested as part of the complete lip balm package.
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