I don't know if you know the PH test paper. Many shops buy it, which can measure the PH value of the product. 7 degrees is the center line, 7 degrees is alkaline upward, and 7 degrees is acidic downward. You can test that water is neutral, and the PH value of human skin is about 5.5-6.5, which is weakly acidic. The mixture secreted by oil glands and sweat glands on the skin surface forms a natural weak acid protective film on the skin surface, which can protect the skin from bacteria and also play a role in moisturizing. At present, personal cleaning products on the market are basically alkaline, because alkaline decontamination ability is very strong. Long-term use of alkaline products will destroy this natural weak acid protective film. Once the weak acid protective film is destroyed, bacteria will breed on the skin, making the skin dry, sensitive and funny. Of course, the skin is also regenerated, and the weak acid film will re-form in about 8-24 hours. According to the calculation of 1 day in the morning and evening, the skin will continue to recover the weak acid protective film, which will lead to the overwork of the skin, thus leading to the early arrival of aging, wrinkles and luster. All NU SKIN products are weakly acidic, which can clean the skin without damaging this weakly acidic film.
Test method: Dip the PH test paper in water and put it on the soap that you usually wash your face and hands, or squeeze the facial cleanser you use on the PH test paper, and then compare it with the PH comparison table.
2. No alcohol
First of all, why do you want to add alcohol to cosmetics? Because alcohol can shrink pores and sterilize. However, alcohol is very volatile, which will take away the moisture on the skin surface and make the skin surface very dry. In addition, alcohol will destroy the surface protein of the skin while sterilizing, making the skin more and more rough. Most toner and toner on the market contain alcohol. We can do a test and get a bottle of your usual shrinkage water. You can see the obvious blue flame with a cotton swab dipped in shrinking water. The alcohol concentration in this shrinking water has exceeded 43%. NU SKIN's toner uses strawberry extract strawberry polyphenol instead of alcohol, which is not only much more effective than alcohol, but also soothes the skin and has strong antioxidant capacity.
Test: Dip the cotton swab in toner to see if it can ignite.
3. No mineral oil
At present, the filler of skin care products is mineral oil.
Mineral oil has the following characteristics:
1. Mineral oil has large molecules, which can cover pores and prevent water evaporation.
2. Mineral oil has good ductility and can cover fine wrinkles.
3. Mineral oil is neutral and will not harm the skin compared with alkaline.
However, due to the large molecules of mineral oil, it will block pores and the skin cannot breathe normally. In the long run, the metabolism of the skin will get worse and worse, making the skin yellow and black. In the process of struggling to breathe, the pores of the skin will also increase. Because the pores are blocked, secretions can't be eliminated normally, which leads to the formation of teasing. In addition, mineral oil has very high heat collection performance. Those containing mineral oil will absorb more than 2 times of ultraviolet rays than those without mineral oil. The heat on the skin surface can't be discharged normally, which causes melanin to be excited and form spots.
Test: Pour your liquid foundation into a glass filled with clear water, and then shake well. If your liquid foundation is insoluble in water, there will be grease on the cup wall and water surface, indicating that the product contains a lot of mineral oil. You can also try NU SKIN Liquid Foundation. Liquid foundation will dissolve quickly in water, and there will be no floating fat.
4. National Air Pollution Control Administration
Products that have just been introduced to the market basically rely on mineral oil and beeswax to seal the pores of the skin and achieve the purpose of passive moisturizing. NU SKIN's moisturizing products use NAPCA patented moisturizing factor to moisturize. It is an extract of soybean, which is porous, and each molecule can absorb four water molecules in the air, so it can actively capture moisture and play a role in moisturizing.
Test: find a small mirror with two sides, spray NU SKIN moisturizing spray on one side, and use cotton swab to add water on the other side. After about 20 minutes, it can be observed that there are many water droplets on the mirror sprayed with moisturizing spray, while the water on the other side of the mirror has dried up. This is the result of NAPCA moisturizing factor actively grasping water.
5, anti-oxidation, as long as you pour the super oxidant iodine into a bottle, and then add new 180 seats of milk to it, the black will be reduced in a short time, and at the same time, it can be continuously reduced to clear water. This is a typical anti-oxidation experiment. At present, it is difficult for similar products on the market to compete with new products.