50ml 100ml 150ml Plastic Flat Tube Cosmetic Use Empty Packaging Hand Cream Face Cream Skincare Serum Screw Cap

Exceptional Protective Performance: Safeguarding Active Ingredients
Active ingredients found in cosmetics—particularly in functional skincare products (such as Vitamin C, retinol, enzymes, etc.)—are extremely sensitive to oxygen, light, and moisture. Cosmetic tubes excel in this regard:

Superior Barrier Properties: High-end cosmetic tubes typically feature a multi-layer composite structure (e.g., five-layer co-extruded tubes). By incorporating high-barrier materials—such as EVOH (ethylene-vinyl alcohol copolymer)—or aluminum foil layers, these tubes can drastically reduce oxygen transmission rates from the 150–300 units typical of standard single-layer PE tubes down to a mere 0.2–1.2 units. This effectively prevents oil rancidity as well as the oxidation, discoloration, or loss of efficacy of the ingredients. This capability is crucial for functional products targeting specific concerns, such as skin brightening and anti-aging.

Prevention of Content Contamination: Cosmetic tubes function as "single-piece" containers where the contents flow out but never back in. Unlike wide-mouthed jars or tubs—which require users to directly insert their fingers to scoop out the product—tubes eliminate the need for direct manual contact. This significantly reduces the risk of repeated contamination of the remaining product by bacteria and dust, thereby ensuring the hygiene and safety of the product throughout its usage lifecycle.

Excellent Fragrance Retention: The multi-layer composite structure effectively prevents the evaporation and escape of fragrances and essential oils, while simultaneously blocking the ingress of external odors. This ensures that the product maintains its intended scent and olfactory quality throughout its entire period of use.