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Olive oil skin care is not so magical to remove stretch marks

发布日期: 2014年12月17日 Source: Release Date: December 17, 2014 Maternity care

Olive oil has long been considered a "healthy" cooking oil. In addition to eating, many people also use it to apply skin, and many skin care lotions use olive oil, claiming that it can bring beauty and skin care functions that ordinary oils do not have. The oil itself helps to moisturize, and the antioxidants in it can also protect the oxidative damage caused by ultraviolet rays in the case of external use. Therefore, it is not surprising that olive oil skin care products are "effective". But to know for sure whether it is effective, it must be tested by modern scientific methods.

Is olive oil good for the skin?

Many studies have evaluated the effect of olive oil on skin protection. For example, the 2008 issue of Pediatric dermatology published a randomized controlled trial in Australia to study the treatment of skin in preterm infants. In the experiment, 173 premature babies were randomly divided into three groups, one using a special ointment on the market, one using an emulsion made of 30% olive oil and 70% lanolin, and the other using no medicine as a control . Within 2 to 4 weeks after the start of the experiment, the skin condition of these infants was scored by the evaluator without knowing which group the infants were in. As a result, the group with the olive oil emulsion had the best skin condition and the control group had the worst. Such an experiment can show that the emulsion of olive oil and lanolin is better than nothing, and it can also show that it is better than the selected "accompaniment student", but is olive oil "extraordinarily effective" as legendary, still Unexplainable.

Another study published by the journal in 2013 had a serious impact on this view. The goal of the study was to compare the effects of olive oil and sunflower oil on the skin. Nineteen adult volunteers with normal skin conditions were divided into two groups: the first group applied olive oil (6 drops each time) twice a day to the forearm of one arm, and the other left untreated for 5 weeks; The two groups were also applied twice daily with 6 drops of olive oil on one forearm and 6 drops of sunflower oil on the other for 4 weeks. Finally, the skin condition was evaluated by measuring the parameters of the stratum corneum integrity and cohesion, moisture retention, skin surface pH and erythema. The results of the study found that the application of olive oil reduced the integrity of the stratum corneum, resulting in mild erythema, while sunflower oil maintained the integrity of the stratum corneum without causing erythema. Therefore, researchers believe that olive oil can damage the skin's barrier effect and should not be used for dry skin and baby massage.

As far as the strength of scientific research evidence is concerned, these two items can only be regarded as "preliminary research", and cannot be said to "prove" or "deny" the effect of olive oil on the skin. Considering that infants and young children are less able to bear, the authors of the second study suggest that it is worth paying more attention from a cautious perspective. However, fashion women are probably more concerned about whether olive oil can produce some "special" effects. For example, many skin care lotions that use olive oil claim that they can prevent or treat stretch marks. Does this statement make sense?

Removing stretch marks olive oil can do nothing

Stretch marks occur in the dermal layer in the middle of the skin. The dermis has collagen and elastin, so it has elasticity and can maintain the shape of the skin. However, if the dermis receives too much tension, or if it lasts for a long time, it may cause the dermis layer to break, which may cause markings. During pregnancy, the fetus continues to grow in the body, causing the abdominal skin to be continuously stretched, and it is easy to form such markings. In Chinese, such marks are called stretch marks. In addition to pregnancy, other factors that cause the skin to continue to stretch can also form such markings. For example, men with significantly increased waist circumference in the short term may also experience "stretch marks". In addition to the tension on the skin, hormone levels can also affect the appearance of skin lines. When the adrenal glucocorticoid level in the body rises, the elastic fibers are more likely to break and produce lines.

Early stretch marks are light red, and gradually turn white afterwards. According to statistics, about 50% to 90% of women will develop stretch marks during pregnancy. Its existence will bring psychological uneasiness to many women, which makes the product known as preventing and eliminating stretch marks particularly attractive.

Because of its long history of use, "Treatment of Stretch Marks" has also become one of the selling points of olive oil and related emulsion products. Unfortunately, the effect of olive oil on stretch marks is basically an urban legend and has not been supported by clinical trials. In November 2012, the Evidence-Based Medicine Systematic Review Database (CDSR) published a review summarizing the 6 medical trials currently available to treat stretch marks with various emulsions, involving a total of about 800 subjects . The results of these studies are very disappointing. These include olive oil, cocoa butter and other common "effect ingredient" emulsions, and placebos that do not contain "effect ingredient", and no treatment. There is no difference in school. In other words, whether you use olive oil or placebo, or do nothing, the condition of stretch marks will not change as a result. It doesn't matter if you have stretch marks or how serious you are. At present, it seems that the measures that can really help reduce stretch marks are probably to avoid excessive weight gain during pregnancy.

Of course, the scale of these studies is limited and the design is not completely rigorous. A more definitive description of the relationship between olive oil and stretch marks requires further research on a larger scale. We can only say that based on the current evidence to prevent and eliminate stretch marks with olive oil, there is no good wish to support scientific evidence.

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Le Mom

  • (Visitors) 7 days ago

Reply to the topic: “Central suspension without school suspension” was deflected and attracted the public. The Ministry of Education answered questions about the “School suspension without school suspension” related to the postponement of primary and secondary schools.

While asking our parents to return to work, it is homework for various groups in the school. It is a sophomore, Chinese, mathematics, English, music, sports, art, and so many groups. Parents must accompany their children to read and complete the tasks. Then take pictures, videos! Then, parents are back to work. How can these homework be completed? Is it time to return from work? It's really unreasonable. Parents are tired.

Luo Jiahui

  • (Visitors) 7 days ago

Reply to the topic: “Central suspension without school suspension” was deflected and attracted the public. The Ministry of Education answered questions about the “School suspension without school suspension” related to the postponement of primary and secondary schools.

I think the health of students is very important now, especially under the background of this student, there are already a large number of students with myopia. Why does the school education even force students to watch it so that glasses ca n’t work in a day, I I am a senior in high school. I have to stare at the screen for at least four hours a day. The glasses are really tired, and it takes about seven or eight hours a day to do questions on the screen. The glasses are really too high.

Oops

  • (Visitors) 7 days ago

Reply to the topic: “Central suspension without school suspension” was deflected and attracted the public. The Ministry of Education answered questions about the “School suspension without school suspension” related to the postponement of primary and secondary schools.

Teachers, parents, and children all torture each other. Actually, the kindergarten also recorded online lessons. I did n’t think it was necessary for my second grade. The teacher could arrange special homework, copy papers, diary and manual. The damage to the eyes is great, and the loss is worth it.

Yunpiao

  • (Visitors) 7 days ago

Reply to the topic: “Central suspension without school suspension” was deflected and attracted the public. The Ministry of Education answered questions about the “School suspension without school suspension” related to the postponement of primary and secondary schools.

I'm curious. Except for the supplementary classes for the junior high school and high school winter vacation, aren't all the elementary and middle schools yet to start? Generally, it is around February 25 every year. Why are there live lectures everywhere? How are the students' schedules arranged? Looking at parents' phones all day long?

The commoner is far away

  • (Visitors) 7 days ago

Reply to the topic: “Central suspension without school suspension” was deflected and attracted the public. The Ministry of Education answered questions about the “School suspension without school suspension” related to the postponement of primary and secondary schools.

Suspension and non-stop online teaching is to make head decisions, without considering the actual situation of each teacher or student, can it be equipped? Non-graduate classes may be delayed for the summer vacation and shortened.

Live the Royal Sister Rice

  • (Visitors) 8 days ago

Reply to the subject: Wuhan million elementary and middle school students start online classes, unified lessons in the morning, personalized coaching in the afternoon, missed live broadcast can watch video playback

I think this form is very good. In the fifth grade, a class is only about 15 minutes. It is very efficient. Think about how much time you usually waste at school. After listening, the child can rest and do his own work. He finishes his homework at six o'clock, and the evening time is all his own.

Zheng Yu brother

  • (Visitors) 8 days ago

Reply to the topic: Wuhan million elementary and middle school students start online classes, unified lessons in the morning, personalized coaching in the afternoon, missed live lessons, see video playback

It looks like a good thing, but it's impractical to think about it a little more, one without teaching materials, two without teaching participants, three without multimedia courseware, and four without classroom feedback and interaction. How to keep the network unblocked? How to ensure everyone's participation? Does the leader feel that the teacher can talk like a speaker for three hours without stopping? Usually carrying the new curriculum standard with students as the main body of the classroom, at this moment, the teacher sang a monologue.

Worchen

  • (Visitors) 8 days ago

Reply to the topic: Wuhan million elementary and middle school students start online classes, unified lessons in the morning, personalized coaching in the afternoon, missed live lessons, see video playback

This is indeed a new transformation. The teacher did not expect that one day it would become a webcast anchor. Maybe one day, the teaching methods changed due to the virus epidemic in the new hall increased the popularity of online education. In fact, from one aspect, this is also necessary for the progress of the times. School education can also be diversified and adapted to different courses on different platforms.

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