24/410 Double-Layer PP Screw Cap with Inner Stopper

This 24/410 screw cap uses a double-layer construction with a smooth outer shell and an inner stopper that seals into the bottle neck. The stopper helps reduce leakage for toners, oils and liquid skincare during shipping and travel. The thick outer wall gives the cap a solid, premium feel, while the straight cylindrical profile keeps the bottle top clean and minimal.

Key Features:

• Double-layer design: An outer shell over an inner cap creates a thicker, more substantial closure.
• Inner stopper: A plug inside the cap seals into the neck to help prevent leaks.
• 24/410 thread: A standard 24mm finish pairs with many cosmetic and personal-care bottles.
• Custom color: Pantone colors, glossy or matte finishes and logo printing support brand-matched closures.

Double-layer caps are a simple way to upgrade a standard bottle with a more solid closure. White caps keep a clean pharmacy look, while colored or metallic finishes add a premium accent. The flat top offers space for an embossed or printed logo. Matching the cap color to a pump or sprayer from the same line helps a bottle family look coordinated, and the inner stopper adds reassurance for travel-size products.