Translation: PETG Vacuum Ampoules: The "Freshness Guardian" Leading the Innovation of Cosmetic Packaging

In the wave of the beauty industry's pursuit of "efficiency, safety, and freshness", packaging is no longer merely a "container" but a key link determining product efficacy and user experience. Among them, vacuum ampoule packaging made of PETG material has quickly become the first choice for high-end functional cosmetics such as serums, essences, and ampoules due to its outstanding performance advantages, providing a new solution for the "active ingredient preservation" and "safe delivery" of beauty products.

I. PETG Material: An "All-Round Player" Tailor-Made for Cosmetic Packaging

PETG (Polyethylene Terephthalate Glycol) is an environmentally friendly copolyester material that combines the stability of PET and the toughness of PC. After special processing, it perfectly meets the strict requirements of cosmetic vacuum ampoules:

• Excellent chemical stability: PETG is resistant to acids, alkalis, and organic solvent corrosion. It can effectively isolate active ingredients commonly found in serums (such as vitamin C, retinol, and peptides) from interacting with the packaging, preventing oxidation and deterioration of the ingredients, and fundamentally ensuring the "original efficacy" of the product.

• Superior barrier performance: Its dense molecular structure provides a much higher barrier rate against oxygen and water vapor than traditional glass and ordinary plastics (such as PP and PE). Combined with vacuum packaging technology, the oxygen content inside the ampoule can be reduced to less than 0.1%, putting the easily inactivated functional ingredients in a "dormant state" and extending the product shelf life to 18-24 months.

• Safe, non-toxic, and skin-friendly: It has passed international cosmetic-grade safety certifications (such as FDA and EU 10/2011). The material itself contains no plasticizers or heavy metal precipitates. Even when the ampoule is opened and comes into direct contact with the skin, it will not cause irritation or allergies, meeting the demand of sensitive skin users for "safe beauty products".

• Lightweight and impact resistance: Compared with traditional glass ampoules, PETG vacuum ampoules are 40%-60% lighter, which not only reduces logistics and transportation costs but also completely solves the pain points of glass being fragile and easy to scratch, making them more suitable for travel and daily use.

II. Vacuum Ampoule Design: Unlocking a New "Fresh Delivery" Experience for Cosmetics

The core competitiveness of PETG vacuum ampoules lies in the in-depth integration of "material + vacuum technology", bringing three breakthrough values to cosmetics:

1. "Zero-contact" freshness preservation, locking in the peak activity

Vacuum packaging completely isolates the product from air and microorganisms, keeping it in a "sterile vacuum environment" from production to opening. For example, serums containing high-concentration pure vitamin C are prone to turning yellow and losing efficacy due to oxidation in ordinary packaging. However, PETG vacuum ampoules can increase their activity retention rate to over 95%, ensuring that users get the best efficacy every time they use the product.

2. Precise dosage control, avoiding secondary pollution

The ampoule design usually adopts independent "one ampoule per use" packaging or a vacuum bottle body with a precise push rod. Users can take out a fixed amount of product without touching the liquid inside the bottle, which not only avoids bacterial pollution caused by repeated use but also accurately controls the dosage, improving the convenience of use.

3. High appearance value and sustainability, meeting the needs of consumption upgrading

PETG material can be made into transparent, translucent, or colorful ampoule appearances through injection molding and blow molding processes. Matched with minimalist metal push rods or frosted bottle caps, it can easily create a high-end "medical beauty-grade" texture, catering to the current trend of "appearance is justice" in beauty consumption. At the same time, PETG is recyclable and degradable. Compared with non-recyclable glass ampoules, it is more in line with the development direction of the "green beauty" industry.

III. Application Scenarios: The "Standard Packaging" for High-End Serums to Medical Beauty Skincare Products

Nowadays, PETG vacuum ampoules have been widely used in core categories of the beauty industry:

• Functional serums: Such as anti-aging retinol serums, brightening tranexamic acid serums, and repairing pro-Xylane serums, which rely on their freshness preservation ability to lock in active ingredients;

• Medical beauty-grade skincare products: Such as post-microneedling repair fluids and post-photorejuvenation soothing serums, which ensure safe use by virtue of their sterile vacuum characteristics;

• High-concentration essences: Such as hyaluronic acid essences and niacinamide essences, which enhance the user experience through the precise dosage control design.

As consumers' requirements for "efficacy authenticity" and "usage safety" of cosmetics continue to increase, PETG vacuum ampoules, with their multiple advantages of "freshness preservation, safety, convenience, and environmental protection", are gradually replacing traditional glass ampoules and ordinary plastic packaging. They have become the "golden partner" for beauty brands to create "high-end functional products", leading the innovation direction of cosmetic packaging.