1, a good essence milk.
Evaluation method: describe the appearance and texture of the product through photo shooting and editing experience.
Evaluation results: the bottle is mainly white and decorated with gold, which is elegant and has the sense of sight of the royal nobility. The push-type bottle mouth can accurately control the dosage, and the moist and smooth texture is very comfortable to use.
Absorption evaluation of caviar whitening essence milk
Whether skin care products are refreshing after use is related to whether the products are easily absorbed by the skin, in addition to bringing personal feelings to the senses. Let's test the absorbability of skinfood pearl caviar whitening cream.
Evaluation method: evenly spread the product on the back of hand, spread a small piece of paper after the product is absorbed for 5 minutes, and then pat the arm. The more particles of small pieces of paper attached to the skin, the higher the viscosity and the slower the absorption.
Evaluation results: After applying skinfood Pearl Caviar Whitening Essence Milk, the small pieces of paper adhered on the back of hand are very few and even, with good absorbability, refreshing skin feeling and no greasy feeling at all.
As whitening products, we are most concerned about the whitening of products. What is skinfood pearl caviar whitening cream? Let's test its whitening performance with experiments.
Evaluation principle: We test the product's ability to inhibit melanin production to reflect the whitening ability. Tyrosine standard solution was reacted with potato juice rich in tyrosinase, and sample emulsion was added to observe whether the melanin content produced after the reaction was different. The highest absorption peak of melanin is between 320 nm and 4 10 nm. In this evaluation, OD400 was used to measure melanin content.
Evaluation method: We used 4mL tyrosine standard solution (0.5mol/L) and added 1mL fresh potato juice, and divided them into two groups. One group added 1 ml whitening sample, and the other group served as blank control group (CK) without any treatment. Put it into a constant temperature shaker (30℃, 200 rpm) and add dissolved oxygen to react for 65438 05 minutes, then put 2mL of the reacted solution into a centrifuge tube and centrifuge for 3 minutes at 65438 02000 rpm, and take the supernatant to determine its OD400.
Evaluation results: Comparing the two test tubes, it can be found that the color of the solution after adding the product is obviously lighter, while from the experimental data, the OD400 value of the solution without essence is 1.35, and the OD400 value of the solution after adding essence is 0.67, which can inhibit the generation of melanin by 50.37%, and has a certain whitening effect, indicating that skinfood pearl caviar whitening cream can help inhibit the generation of melanin.
Moisturizing performance is the most basic function of all skin care products. Skin care products ranging from ten yuan to thousands of yuan have remarkable moisturizing performance. For the skin, the first job of whitening is to moisturize, so as to better play the whitening effect of the product. Let's take a look at its moisturizing effect.
Evaluation method: Testers test the initial moisture value of facial skin before using the product, test the moisture value of facial skin after using it, and then test the moisture value of facial skin after 1 hour.
Evaluation results: The moisture value before use was 365,438+0%, which rose to 48% immediately after use and decreased to 43% after one hour. Generally speaking, skinfood Pearl Caviar Whitening Essence Milk can replenish moisture to the skin, but it is inferior in long-term moisturizing performance, so it can be matched with a cream with strong water-locking effect to meet the long-term moisturizing needs of the skin.
MM The important reason for using skin care products is to improve skin quality. It is particularly important to evaluate the skin quality, which includes three comprehensive indexes: wettability, oil content and skin tenderness. So what is the effect of skinfood Pearl Caviar Whitening Cream? Let's have a look.
Evaluation method: the changes of skin moisture content, oil content and tenderness before and after using the product were tested by skin tester.
Evaluation results: As shown in the figure, the skin was rough and dry before using skinfood Pearl Caviar Whitening Essence Milk. After using the product, the moisturizing degree and fineness are improved by 6 grades, and the skin quality is improved, making the skin appear moist and delicate. The oil content also increased by 6 grades, indicating that skinfood Pearl Caviar Whitening Essence Milk can help the skin balance oil secretion and restore the skin to the normal state of water-oil balance.
The evaluation results: skinfood Pearl Caviar Whitening Cream is very convenient to use by pressing the bottle mouth, with moist and smooth texture, quick absorption, refreshing skin feeling and excellent whitening effect, which can effectively help inhibit melanin production and brighten skin tone. In addition, it can better replenish moisture to the skin, so that the dry and rough skin is obviously improved, which makes it appear moist and delicate, and restores the original healthy and fair state of the skin.
2, can't forget to repair parts.
Moisturizing blind spot 1: eyebrows
Symptoms: peeling
Literacy: When applying cream around the eyes, don't forget to care for the eyebrows and eyebrows, especially the eyebrows can be repeated several times.
Moisturizing blind zone 2: behind the ear
Symptoms: Tightness
Reason: The skin here is very sensitive, and most people will choose this place to test the degree of allergy when trying cosmetics, so it is easy to tighten the facial skin because of dryness, resulting in discomfort.
Literacy: After maintaining your face, don't forget to apply some moisturizing cream around your ears, and then gently massage with your hands, which will also help to relieve nervous nerves.
Moisturizing blind zone 3: nose
Symptoms: peeling, redness and itching.
Reason: The densest sebaceous gland in the whole body, even dry skin will secrete oil here, but it will be very dry in winter due to excessive care.
Literacy: reduce the frequency of nasal membrane care. If you feel too much oil, apply a cream that is more refreshing than facial care alone.
Moisturizing blind spot 4: canthus
Symptoms: Wrinkling
Cause: To see through a person's age, choose eyes. It can be seen how fragile the skin in this part is, and it is most easily affected by the environment, resulting in dry lines.
Literacy: It is very important to choose the right eye cream and massage with your ring fingers. The strength of this finger is most suitable for massaging eyes. Do an eye patch once a week.
Tips:
Sweep crow's feet from the corner of your eye. First of all, keep a happy mood, don't worry and worry, and avoid excessive frowning and crying to produce crow's feet.
Secondly, correcting the bad habits in daily life, such as squinting at things, lying down reading newspapers, blinking, rubbing your eyes with dirty hands, etc., is not only bad for eye health, but also prone to fine lines.
Thirdly, mix fresh milk and honey into a thin paste, apply it to the place where wrinkles are easy to appear in the corner of the eye, then massage for 5 minutes, stay for about half an hour and wash it off, once a night, and the effect is good.
Moisturizing blind zone 5: neck and neck
Symptoms: rough
Reason: Neck, like eyes, will reveal the secret of age at the first time. The skin here connects the face and the body, which is very critical and special.
Literacy: choose a special neck cream and massage the neck from bottom to top to effectively avoid skin relaxation and horizontal lines. Especially in autumn and winter, insisting on neck massage can not only relieve fatigue, but also help neck blood circulation, tighten skin and enhance contour.
It is worth noting that the elasticity of neck skin is not as good as hail, so massage must be gentle and moderate, otherwise it will be counterproductive.
Moisturizing blind zone 6: elbow and knee joint
Symptoms: chapped
Cause: Regular activities and rubbing against clothes affect the normal breathing of the skin and make it dry.
Literacy: Choose high-quality body nourishing cream, repeat it several times and gently massage it to strengthen the penetration of nutrition.
1. Use soap or medicated soap as little as possible, because the oil on the skin surface has a protective effect, and washing oil too thoroughly will naturally lead to dryness and cracking. When the weather is cold, the number of baths should be reduced appropriately.
2. Dry immediately after washing and apply moisturizing cream. There are many oil nourishing creams. Vitamin E cream, vaseline and glycerin produced by the hospital all have the function of preventing chapping.