First of all, the most important thing is to find out the health status of our hair and scalp, and find out what function shampoo our hair needs, then we will choose shampoo. Many shampoos in supermarkets and hair salons only write some selling points, and many things are not expressed to consumers, so we have been trying one shampoo after another, and it is difficult to find the right one. It won't take long, and it may not work.
How to judge your hair quality?
Generally divided into four categories: oily, neutral, dry and mixed. In addition to neutral hair, oily hair always makes people feel uncomfortable, such as dandruff, itching and greasy feeling; Dry hair is mostly a sensory problem, such as split ends, dry hair after cutting, and dull hair.
Oily hair: After shampooing, there is more oil and dandruff, and it is easy to deform after blowing hair. Moreover, the oil is bright and shiny, and the hair diameter is relatively thin and fragile. Although more sebum can protect hair and prevent it from splitting easily, the total area covered by sebum on thinner hair is relatively small, so it is oily to say that the supply of sebum exceeds demand, with less water and more oil. The sebaceous glands in the head are rich, so the oil secreted by the head is also very strong.
Neutral hair: smooth and shiny, not greasy, not dry, easy to set and finish, this is healthy and normal hair, with moderate oil and water, and there may be a little dandruff.
Dry hair: less sebum secretion, thick, stiff and inelastic hair, dull hair, curly hair roots, split or tangled hair tips, easy to break, split, interrupt, sun exposure, long-term wind blowing, air drying and so on. , can absorb and destroy the oil on the hair and make it lose water, resulting in dry hair and too little oil and water. Hair damaged by dyeing should also belong to dry hair. In the dyeing process, the hair structure is opened or the disulfide bond of hair is cut off under the condition of strong alkali, which will lead to the destruction of some hair structures and the loss of water locking ability.
Mixed hair quality: the scalp is oily but the hair is dry, which is a mixed state of hair oil close to the scalp 1 cm, which is drier and even split toward the hair tip. Women and teenagers who menstruate are mostly mixed hair. At this time, the hair is in the best state, and the hormone level in the body is unstable, so there is a phenomenon of coexistence of oil and dry. In addition, excessive perm or dyeing and improper care can also cause dry hair but greasy scalp.
Supplementary note: dandruff does not belong to the category of hair quality, but belongs to the category of scalp. There are four main reasons: pathological scalp, scalp shedding due to dryness, excessive scalp oil secretion and microbial growth.
Shampoo selection principle
Oily hair: neutral, slightly alkaline pure clean shampoo. With dandruff caused by bacterial growth, it is best to add anti-dandruff agents (ketoconazole, OCT, etc. ) than to contain ZPT (because ZPT systems usually contain oil).
Neutral hair: neutral and slightly acidic shampoo with simple nursing ingredients.
Dry hair: weak acid shampoo containing nursing ingredients, used with conditioner, or often baked with oil.
Mixed hair: clean first, then care. That is, oily hair should be treated first, and then hair should be treated with conditioner to avoid contact with scalp.
Seven Perceptual Indicators of Shampoo
A good shampoo must have the following perceptual indicators: foam, wet smoothness, dry smoothness, irritation, oil resistance, gloss, head itching resistance and other indicators. According to your own situation, combined with the introduction and trial of shampoo, you can finally choose the most suitable shampoo product.
1. Foam degree Foam degree generally refers to the foaming ability of shampoo. The more foam, the stronger the cleaning ability and the stronger the degreasing ability. Choose shampoo with more foam for oily hair and moderate foam for medium dry hair.
2. Wet skin wet skin means that the hair will not be entangled when washing and flushing. At the same time, wet and slippery is also a nutritional conditioner, that is, effective care is given to the hair while shampooing. Dry hair must use a shampoo with slippery function.
3. Dry smoothness Dry smoothness means that the hair is smooth after shampooing. At the same time, dry sliding is also a nutritional hair care agent. In other words, effective care is carried out for the hair while shampooing. For dry hair, you must choose a shampoo with dry and slippery function.
4. Irritability Choosing a shampoo with low irritation is our constant pursuit. Only after using this function can we know that any so-called natural plant-free stimulation is a fool for consumers.
5. Oil resistance Oil resistance is also called oil resistance. First of all, we need to know how oil is produced. First, after shampooing, the human scalp will automatically discharge a certain amount of oil, which plays a role in nourishing hair and protecting the scalp. This is a normal phenomenon in oil production. Second, because the shampoo's hair care raw materials are improperly selected or some inferior raw materials are selected. After shampooing for a short time (about one or two days), these raw materials will produce too much oil on the hair and scalp surface. This will cause the hair to feel greasy, and even these raw materials will form an oil film on the scalp, blocking pores and causing itching. Therefore, if the oil comes out in a day or two, don't choose such a shampoo.
6. Some nutrients will be added to the shampoo formula with good luster. This kind of raw materials can give the hair the nutrition it needs when shampooing, and can also form a protective film on the hair surface, making the hair shiny and bright.
7. The reasons for preventing head itching are very complicated, but as far as shampoo itself is concerned, there are several reasons that can lead to head itching. First, the detergent was improperly selected or some low-grade detergents were selected. Second, improper selection of nutrients or selection of some low-level nutrients will leave too much residue after shampooing, which will directly block pores and cause the scalp to not breathe normally. Therefore, my head will itch. Shampoo can stop itching for three to four days after shampooing, which is a good shampoo.
It is worth noting that many advertisements exaggerate the function of shampoo and mislead consumers to buy it. Shampoo, as a head cleaning product, is actually difficult to replace drugs to treat hair problems. Therefore, when choosing shampoo, we should pay more attention to its own cleaning and nursing function and the real effect after trial. The practice of blindly listening to advertisements and choosing shampoo is not worth promoting.
How to read the inspection report of shampoo
Let's take a real inspection report as an example to illustrate.
1: Pay attention to the pH value, about 5.5 is close to the pH value of the hair itself. Below 5.5, the hair scale structure will be closed and feel very smooth. It opened after 5.5, and it felt dry. However, as a shampoo, it is usually better to have a good cleaning effect, and the conditioner should be less than 5.5 to make the hair closed more smoothly.
2. Effective substance-refers to the components in shampoo that can be dissolved in neutral alcohol (after removing inorganic salts). The higher this value, the more possible nursing ingredients.
3: Foam-140 is rich foam, 100- 140 is medium foam, and 100 is low foam. The higher the foam, the stronger the cleaning ability.
Other indicators as long as they meet the requirements.