Why does the Mi Nong lotion not have a tube? How to use vacuum bottle cosmetics?

Mi Nong Amino Acid Lotion is a very moisturizing lotion that contains 9 essential amino acids for healthy skin and low-molecular hyaluronic acid, making it more suitable for sensitive and dry skin. However, some people expressed their confusion as to why the Mi Nong lotion they bought did not come with a tube. How should they use it?

Why doesn't the Mi Nong lotion have a tube?

Not all Mi Nong lotions come without tubes. It comes in several versions, the one without the tube is the vacuum bottle packaging version. A vacuum flask has no dip tube, but rather a diaphragm that rises to evacuate the product. When the user presses the pump, a vacuum effect is created, pulling the product upward. Most skin care products that help treat sensitive skin, acne-prone skin and other problem skin types are packaged in vacuum bottles, which fundamentally eliminates product contamination and ensures product activity and safety.

How to use vacuum bottle cosmetics

Many people use vacuum packaging, either out of curiosity or because less product is squeezed out, and want to unscrew the pump to take a look. They will see that there is no straw on the pump and think that the straw is broken. In fact, this is a wrong operation of the vacuum bottle. When pressing the vacuum bottle, the vacuum plug at the bottom is pushed upward using the principle of pressure. After pressing it several times to expel the air, you can press it out smoothly. If you are too impatient to press the bottle, just turn the bottle upside down and shake it downwards to press it out. This will not cause the product to flow back, and only allow the product to flow out without entering, thus fundamentally eliminating pollution and oxidation.

Advantages of vacuum bottle cosmetics

1. Cosmetic vacuum bottles can protect sensitive products (such as natural skin care creams, essences, foundation creams and other preservative-free formula creams) by preventing them from being exposed to air, thereby extending their service life by up to 15%. This makes airless technology the new future for cosmetic, beauty and medical packaging.

2. Cosmetic vacuum bottles do not have a dip tube, but a diaphragm that rises to evacuate the product. When the user presses the pump, a vacuum effect is created, pulling the product upward. Consumers can use nearly any product without leaving any waste, and they don’t have to worry about standard pumps not working for many products.

3. In addition to protecting your formula and extending shelf life, vacuum bottles also provide branding effects. It is a high-end packaging solution that comes in a variety of designs to suit your aesthetic preferences.

Are vacuum-packed cosmetics really sterile?

Common ingredients in cosmetics such as glycerin, amino acids, proteins, vitamins, minerals, oils, etc. are all basic nutrients required for bacterial growth, while oxygen and water are the key factors in determining bacterial growth. For example, when the double bond part of unsaturated fatty acids in oils and fats encounters oxygen, an addition reaction (a characteristic reaction of unsaturated compounds) will occur to generate peroxides, which then continue to decompose into low-molecular aldehydes and carboxylic acids with a special odor. After the finished cosmetics are filled into bottles, the gas (oxygen) will be extracted by a machine, depriving bacteria of their breeding ground and isolating them from the outside world, thereby extending the activity and storage time of the cosmetic ingredients. However, the cosmetics manufacturing process is not a vacuum environment. Preservatives are added from the raw materials to prevent contamination. Vacuuming air is one of the means to delay deterioration.

How to tell whether the cosmetics you buy are vacuum-packed

Here I want to talk about another concept: vacuum bottle. Vacuum packaging and vacuum bottles are two different things. Generally speaking, vacuum skin care products will have the remaining air sucked out after production (professional machines), and they cannot be completely vacuumed. To determine whether the bottle is a vacuum bottle, just check whether there are air holes (air extraction holes) on the bottom of the bottle. If there are, then it is a vacuum bottle; if not, then it is not. So you should also know that you cannot cover the air evacuation holes with stickers, as this will prevent the air from being squeezed out. There is also a patented "sterile cabin" design on the market, which is claimed to be safer than vacuum packaging. It has a hose and a special bottle cap design. When it is squeezed, no air is sucked back, so the stability of the active ingredients will not be prolonged. This is one of the important factors of vacuum packaging. The pickled foods in supermarkets, such as braised chicken legs, sausages or rice, are all made with a vacuum machine to extract the air from them, making them hard. After the skin care products are filled into sealed bottles, the air is extracted to prevent the oxidation and rancidity of oils and the survival of microorganisms. The emulsion flows back to prevent contamination, so you can see the bottle gradually shrinking due to the hose after use. A vacuum bottle squeezes out one drop each time it is pressed. The common spray is not vacuum-packed, but rather uses a "spray can" that adds "nitrogen" to the bottle to "pressurize" it. When pressed, the contents release the solution at a predetermined pressure and in a controlled manner, which is completely different from a vacuum device.

Are bottles with compression pumps designed to be vacuum-free?

Generally, bottles with compression pump designs do not have a vacuum design, which is mainly used to reduce large-area contact of the product with air when it is used and to prevent dust from falling into the bottle after opening the bottle and contaminating the product. ?