Introduction to Multilayer Cosmetic Tubes and Their Main Applications

Cosmetic and personal care tubes are widely used across skincare, haircare, and medical-related products due to their portability, good sealing performance, and overall user-friendly design. To meet the needs of different formulations, tubes are commonly made in mono-layer, double-layer, triple-layer, and five-layer structures. Among them, multilayer tubes—especially those with barrier layers—are the preferred choice for premium and sensitive formulas.

1. Mono-Layer Tube

Structure: Made from a single layer of plastic (commonly PE).
Main Applications:

Stable formulas that are not easily oxidized

Daily personal care products such as facial cleansers, hand creams, and body lotions
Advantages: Cost-effective, flexible, and versatile in appearance
Limitations: Low barrier performance; not suitable for sensitive or highly active formulas

2. Double-Layer Tube (2-Layer)

Structure: An added protective layer increases strength and durability.
Main Applications:

Mild skincare formulas with slightly sensitive ingredients

Light serums or cleansing products
Advantages: Stronger than mono-layer tubes and provides more stable appearance
Limitations: Barrier properties remain limited for high-activity ingredients

3. Triple-Layer Tube (3-Layer)

Structure: Typically consists of an inner layer, an outer layer, and a functional middle layer (often EVOH).
Main Applications:

Products containing fragrance, essential oils, or active ingredients

Premium haircare and basic skincare products
Advantages: Enhanced barrier properties that help extend product shelf life
Limitations: Higher cost than mono- and double-layer tubes

4. Five-Layer Tube (5-Layer Tube)

Structure: Common layers include: Outer layer / Adhesive layer / Barrier layer (EVOH) / Adhesive layer / Inner layer.
This is the most widely used structure for higher-end or sensitive formulas.
Main Applications:

Highly active skincare (whitening, anti-aging, AHA/BHA, etc.)

Formulas that are volatile, oxidation-sensitive, or light-sensitive

Products containing medical-grade or sensitive ingredients requiring strong protection
Advantages:

Excellent barrier performance against oxygen, fragrance loss, and moisture

Superior formula protection and stability

Extended shelf life
Limitations: Highest cost among tube structures; more complex manufacturing

5. Key Advantages of Multilayer Tubes

Strong barrier protection against oxygen, UV light, and moisture

Protects active ingredients and extends shelf life

Maintains fragrance and formula stability

Higher mechanical strength and improved shape retention

Ideal for mid- to high-end skincare brands

Conclusion

The number of layers in a cosmetic tube affects not only its appearance but also the safety, stability, and shelf life of the product inside. When selecting a tube type, brands should consider their formula sensitivity, active ingredients, transportation needs, and market positioning. Whether mono-layer or five-layer, multilayer tubes provide professional and reliable protection for a wide range of personal care products.