Special ingredients special packaging
Some cosmetics require special packaging due to the particularity of the ingredients to ensure the activity of the ingredients. Dark glass bottles, vacuum pumps, metal hoses, and ampoules are commonly used special packaging.
1. Dark glass jar
After some photosensitive ingredients in cosmetics are oxidized by ultraviolet radiation, they may not only lose their activity and efficacy, but may even cause sensitization and toxicity. For example, ascorbic acid and ferulic acid are easy to photolytic oxidation, vitamin A alcohol and its derivatives There are photosensitivity and phototoxicity.
In order to prevent such components from being photolytically oxidized by ultraviolet rays, the packaging must be protected from light. Generally, dark opaque glass bottles are used as packaging materials, and dark brown glass bottles are the most common. For convenience and sanitation, these opaque glass bottles are often used with droppers.
Some brands that focus on functional ingredients especially like this kind of design. After all, sufficient quantity and strong effect are their brand signatures, and appropriate packaging design is the basis for raw materials to play a role.
Although dark glass bottles are mainly used to avoid light, it is not ruled out that purely traditional or appearance reasons choose dark glass bottles. Some products do not contain photosensitive ingredients in the ingredient list, but still use opaque dark glass bottles, which may be due to the traditional use of this dark dropper glass bottle in medicine.
2. Airless pump bottle
Although dark glass bottles have good light-shielding performance, they can only completely isolate the air before use, and are not suitable for ingredients that require higher air isolation (such as ubiquinone and ascorbic acid, which are used for anti-oxidation). And some oil components that are easily oxidized (such as shea butter), etc.
If the product composition has higher requirements for airtightness, a vacuum pump can be used. Vacuum pumps generally use AS materials. The biggest advantage of this type of packaging is that it can well isolate the material body from the outside air. The packaging of the vacuum pump has a piston at the bottom of the bottle. When the pump head is pressed, the piston at the bottom of the bottle moves upwards, the material flows out, and the space of the bottle body shrinks without air entering.
3. Metal cosmetic tube
Dark glass has average air isolation performance, and the airless pump is made of plastic, so it is difficult to achieve good light-shielding performance. If the product components have very high requirements for both light-shielding and air-isolation (such as vitamin A alcohol), it is necessary to find a better one. Packaging Materials.
The metal tube can meet the two requirements of air isolation and light shading at the same time.
High-concentration vitamin A alcohol products are generally stored in aluminum tubes. Compared with plastics, aluminum tubes have stronger airtightness, can also shade and prevent moisture, and protect the activity of the contents.
4. Ampoules
Ampoules are one of the popular packaging materials in the cosmetics industry in recent years, and their airtightness and safety are indeed remarkable. The idea of ampoules in the cosmetic industry comes from ampoules in the medical industry. Ampoules can keep the active ingredients in airtight storage, and are disposable, which can ensure the hygiene and safety of products, and have first-class ability to isolate air and pollutants.
Moreover, the glass ampoule can be adjusted to a dark color, which has a good light-proof effect. In addition, the product adopts aseptic filling, and the single-use ampoule does not need to add preservatives, which is a good choice for consumers with severe sensitive skin who do not want to use preservatives.
Post time: Sep-01-2023