But not all olive oil is suitable for skin care! ! ! I will share with you some points for attention in choosing olive oil, so that you can use the most suitable oil and be the most beautiful yourself!
How to choose olive oil 1 suitable for beauty and skin care and distinguish the grades of olive oil?
Let's learn the basics of olive oil first. Olive oil is squeezed from the fruit of olive oil. It is a light yellow transparent liquid. Liquid gold? Generally speaking, olive oil can be divided into the following four grades:
Virgin olive oil is an excellent virgin olive oil, but its quality is second-class, and it can also be used for beauty and skin care.
The symbol of Refined virgin means refined olive oil, which represents secondary refining and belongs to tertiary olive oil.
Pure olive is the most common pure olive oil, which can only be eaten, but can not be used for beauty and skin care. It belongs to grade 4 olive oil.
Extra virgin olive oil is the best olive oil with this English logo, which belongs to the highest grade olive oil and represents fresh virgin olive oil, and can be used as cosmetic and skin care olive oil.
2. Choose physical cold pressing technology.
There are generally two ways to refine vegetable oil, one is physical pressing and the other is chemical solvent extraction. Be sure to choose the whole process of physical pressure separation to prevent the damage of chemical solvent residues to the skin.
Physical pressing is also divided into cold pressing and hot pressing.
Cold pressing means that raw materials are directly pressed by physical methods without frying.
Hot pressing, also known as cooking pressure, is the physical pressing of raw materials after they are cooked in a wok. Although the ripe press yield is high, the oil of raw materials has been partially oxidized after high temperature treatment, which is not suitable for skin care.
Therefore, the whole physical cold pressing technology should be selected.
(In fact, cold pressing technology will be subdivided. The common cold pressing process is also between 70 and 80 degrees Celsius. When the oil is above 70 degrees Celsius, unsaturated fatty acids will be converted into trans fatty acids, which is not good for the skin. Advanced cold pressing technology must control the operating temperature. )
3. Choose the acidity value in the range of 0.3 ~ 0.8%.
Acidity value (also called free fatty acid ratio, this thing is good for human body, so pay attention to skin beauty). The acidity of extra virgin is generally between 0.3 and 0.8%. The lower the acidity value, the less likely it is to cause allergies.
But it should be noted that there are some parts on the market? Extra virgin olive oil? Indicate that the acid value is less than 0.3%, either refining twice, or the olive itself is not good, or deliberately writing that the acid value is low. Generally speaking, the acid value of oil obtained by cold pressing method cannot be lower than 0.3%.
4, trans fatty acid value as a reference.
Extra virgin olive oil should be less than 0.05%. But the value of trans fatty acids is completely zero, which is unreasonable. There will still be trans fatty acids in real cold pressing.
5. Pay attention to the types of olive oil
Olives are generally divided into oil production, industrial oil and manor oil.
Origin oil: refers to olive fruit selected from a specific planting area of a country. The general product label will indicate the variety and specific planting place of olive fruit. Some planting areas have obtained the protection of origin (PDO) designated by the European Union because of their unique fruit varieties, geographical characteristics and strict processing methods. Mediterranean countries, Spain, Italy and Greece are the best, which can be used for skin care. But if I write Made in the Mediterranean, I'm finished! Don't buy it.
Industrial oil: They buy barrels of crude oil at low prices from major producing areas in the world, and then blend them. This kind of olive oil has no planting place on the label, only the origin of the bottle is indicated. This kind of skin care is not recommended.
Manor oil: especially its olive fruit from its own plantation. Hand-picked, on-site oil extraction, immediately bottled, so manor oil is the best in olive oil, high quality. This oil is basically sold directly by the plantation itself. Although extremely expensive, it is deeply loved by doctors.
If you can't be exposed to manor oil like a doctor, use the oil of origin! (smug smile).
6. The clearer the color, the higher the quality.
How to tell the color of olive oil? Generally speaking, the clearer the color of olive oil, the better the quality. On the contrary, the more turbid olive oil is, the worse its quality is. In addition, the production time of olive oil also determines the freshness of olive oil, which also needs to be considered.
Matters needing attention
1. Although the allergic probability of pure natural substances is low, it cannot be completely zero. Everyone is allergic to water. Olive oil beauty and skin care, may wish to do a sensitivity test before use. You can apply an appropriate amount of olive oil to the skin behind your ears and see if there is any allergic reaction after half an hour.
2. The above experience is for reference only.