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The principle of henna powder hair dyeing is that henna powder contains a plant pigment called henna, which slowly dissociates from the base powder under the conditions of high temperature above 60 degrees and humidity above 100 degrees, (especially under the condition of acidic environment, it can accelerate its free speed) and the keratin in the hair (the main component is amino acids) to form a new color substance, which will significantly deepen the color after encountering air (this is the reason why the hair will become darker after two or three days of henna powder dyeing). Depending on the type and base color of the hair, the hair forms reddish-brown, brown, coffee, and other colors in the sun.
If you want to use a chemical hair dye to dye back a different color, it will affect the color slightly, or it will not be easy to color. Because henna powder will cover the hair layer with a film, this film will block the chemical hair dye from destroying the hair layer. Chemical hair dyes are dyed by destroying the hair layer, so the possible result is that either the color is not the desired one, or the color is not easy, or the desired color can be achieved.
Because you've only dyed it once, it's all possible.
Be sure to keep your hair clean and dry before dyeing: don't do special treatments such as hot oil a week before dyeing; It is best to wash your hair the day before dyeing it; Do not use styling products on the day of hair coloring. Comb your hair through before coloring begins.
When coloring your hair, you don't need to use a comb, massage your head thoroughly with your fingers until the dye is evenly distributed on each strand. Once the hair dye is evenly distributed to the hair, do not cover or wrap the hair, but let the hair spread freely so that it is in full contact with the air to maximize the effect of the hair dye ingredients.
Pure henna powder is more suitable for scattered gray hair, which is more natural. If it is a centralized white hair, it must be matched with indigo powder, so that henna + indigo can unify the color of the whole head as much as possible. In your case, it's quite simple, just dye your whole head black with chemical hair dye.
Let's unify the colors first. Hope it helps. For example, if you want to dye black with henna powder, there are two options: 1. After dyeing henna powder, dye it with indigo again, many people who are allergic to hair dye cream are actually allergic to indigo.
2 Buy natural black henna powder directly, there are chemical ingredients added to it, if you are allergic to hair dye cream, you are still allergic to the chemical ingredients here.
In short, no matter what kind of hair dye you have, it will have a greater or lesser impact on your hair, so it is better to dye your hair less, and the natural color of black hair is also good.
Henna powder points nail grass similar! The color can be dyed (but if it is reddish, you can't do yellow), but don't think about perming your hair, even if you have a bend to go home and wash your hair, there will be nothing! So I personally don't recommend anyone to use henna nail and anything like that.........I don't even know if this thing has a professional inspection!
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Ingredients: 70 grams of henna powder.
Excipients: 1 tablespoon olive oil; 1 tablespoon of honey; salt 1 gram; 1 tablespoon vinegar; a pinch of milk; a pinch of egg white; disposable gloves; Comb.
1. Prepare the materials for hair dyeing.
2. Open a 70g packet of henna powder, pour it into a small bowl, mix the henna powder with half a cup of hot water or black tea, add 1 gram of salt, a tablespoon of vinegar, a tablespoon of honey and a tablespoon of olive oil.
3. You can also add milk or egg white, and these materials are added to provide nutrients for hair. It's best to mix henna powder the night before and dye it again the next day, which is especially effective.
If it feels too dry, you can add some olive oil and honey to adjust the henna powder to the same viscosity as hair dye cream.
4. Wear disposable gloves and apply henna powder evenly to your hair, and apply more to the gray hair.
5. Dye your hair and let it air dry for a while.
6. Wrap plastic wrap or convenient tape, and then wrap a wet towel.
7. Put on an electric heating cap and heat for 20 to 30 minutes.
8. Remove the cap and towel, wait for about two hours, and you can wash off the henna powder.
Be careful not to use shampoo when washing your hair, only wash it with conditioner, so that it will not lose too much color, and you can wash your hair normally next time.
10. The beautiful black hair is dyed.
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Cause: It may be that the temperature is not enough, or the pH of the scalp is not suitable.
1. Henna powder can only be dyed under the conditions of high temperature above 60 degrees and humidity above 100 degrees.
2. The free speed and pH of the dyeing factor are also related, especially under the condition of acidic environment, which can accelerate its free rate and combine with the keratin in the hair (the main component is amino acids) to form a new color substance.
In addition: this coloring substance will be significantly darkened when exposed to air (which is why henna powder hair will become darker after two or three days of dyeing), and in the sun, according to the different hair types and base colors, the hair will form reddish-brown, brown, coffee and other colors. Staining is unstable.
Note: Recent studies have shown that henna powder cannot be dyed and should not be used in the future.
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The specific steps are as follows:
1. Take an appropriate amount of henna powder and put it in a bowl. Generally, 3 packets are enough for short hair, and 4-6 packets for long or more hair are used according to the situation. Note that henna is gray-green at this time!
Occasionally, you will find a slight difference in the color of the powder in individual packets, which is also normal, please feel free to use it. (It is best to use a porcelain bowl with a smooth surface, which is easy to clean in the future, and it is almost impossible to wash off with a plastic bowl!) )
2. Pour in henna powder with hot strong black tea (or hot coffee) and stir well to make a slurry. After cooling slightly, add a small amount of egg white, olive oil (or almond oil), honey and ruler, etc., and then mix thoroughly, note that it can be thinned, because it will thicken after a long time. Note that henna paste is still green at this point.
Black tea and coffee are for better coloring, egg whites, olive oil, and honey are for better hair care, and these things can be added or not. )
3. Leave overnight. (Originally, it was required to leave it for more than 3 hours, but my experience was that if you wanted to darken the hair color, the henna powder mud would take 8 hours or even longer, so I simply left it for one night.) )
4. When you wake up the next morning, you will find that henna is black in powder! And it's thicker than last night! At this time, if it feels thick, you can put some more tea, but be careful not to be too thin, otherwise it may run down on the high hair.
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Henna powder is a pure natural plant powder made by drying, sterilizing and grinding the flowers and leaves of henna flowers, which is generally used for tattooing, painting, and dyeing hair and nails. It is loved by people in India and Pakistan, and with the recognition of henna in China, people have also begun to use henna powder to dye their hair. The main reason why henna powder hair dyeing is so popular is because of its unique medicinal properties, which can prevent headaches caused by wind and cold, prevent hair loss, dandruff and premature gray hair and gray hair.
So, what exactly is the method of henna powder hair dyeing?
Step 1: Prepare henna powder
Pour an appropriate amount of henna powder into the container, in general, short hair: 50 grams of medium hair 100 grams, long hair 150 grams (adjusted according to each person's hair quality and depth), add a spoonful of white vinegar, and pour the appropriate amount of warm water of about 60 degrees directly into the container with henna powder, stir and mix the henna until the powder is viscous as shown in the picture, and the large particles are reduced!
Note: Let the prepared henna powder stand, in general, for 5-8 hours.
Step 2: Powder
Before applying powder, please make sure that your hair is washed and dried and prepared for coloring, such as shower caps, shawls, gloves, hair dye combs, tissues, etc.
Brush the resting henna paste evenly into your hair. Brush Order: Start with the top layer and start with a slight layer of spontaneous roots, and the second layer can be directly covered on the brushed hair.
If you apply it directly by hand, be sure to apply it evenly so that the gray hair is not evenly colored.
Step 3: Replenish the powder
After all the brushing is done, check the freshly brushed hair, make up the powder for the lack of powder, and brush more for the places with more gray hair. After applying to the head, you can apply color to the gray hair on the front of the forehead, temples and the back of the neck to evenly color, and then wear a shower cap to wrap the hair for about 4 hours.
Step 4: Heat
If possible, you can use a heating cap to heat for half an hour, and the effect will be better after heating. The heating cap on the market is generally about 20 yuan, and there are also about 50 yuan.
Step 5: Rinse
After 3-4 hours of wrapping (including the time when the dust is heated), remove the shower cap and rinse the hair with water. You can also use shampoo as shown in the picture.
At this time, we can see that the gray hair has turned into yellow hair or red hair (depending on the hair type, the effect is different), if you can accept this color, the hair dyeing is successful, and there is no need to do the following operations. If you are not satisfied with the color of pure henna powder, you can also adjust the effect of using henna powder for the first time to achieve satisfactory results.
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Summary. The speed of bleaching after henna hair dyeing is related to the condition of the hair before dyeing, the type of hair dye used, the frequency of bleaching, the number of shampoos, and other factors. Generally speaking, henna bleachs faster after dyeing because its hair dye contains a small amount of oxidant, which is easily washed off by moisture.
If you want to maintain the results of your hair coloring, it is recommended not to wash your hair frequently, avoid using too hot water and strong shampoos, and use a moisturizing conditioner and avoid sun exposure, which can slow down the bleaching rate.
I'm sorry I don't understand, but can you elaborate on that?
The speed of bleaching after dyeing henna is related to the condition of the hair before dyeing, the type of hair dye used to mark the limbs, the frequency of bleaching, the number of shampoos, and other factors. Generally speaking, henna bleachs faster after dyeing hair, because its hair dye contains a small amount of oxidant, which is easily washed off by moisture. If you want to maintain the results of your hair coloring, it is recommended not to wash your hair frequently, avoid using too hot water and strong shampoos, and use moisturizing conditioner and avoid sun exposure, which can slow down the bleaching rate.
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Maybe it's not the right way. How to use henna powder:
1 Keep hair moist after washing;
2 Pour henna powder into warm boiled water (70%-80%), stir into a viscous paste and stir evenly, the stirring time is about 15-20 minutes, the longer the effect, the better.
3 Leave the paste-like henna powder for 50 minutes, so that the henna powder dissolves more evenly, which is very helpful for the viscosity of the hair and the natural plant color.
4 Apply the mixed henna powder evenly to the hair, and gently massage for 3-5 minutes on the areas with more gray hair.
5 Wrap your hair in a shower cap and leave it on for 2-3 hours, if heated with electricity, it only takes 45 minutes (longer is better).
6 Rinse with water, and then rinse with shampoo after two days.
Dosage of henna powder:
About 30 grams for short hair, 50 grams for medium hair, about 100 grams for long hair, about 150 grams for shawls, and 200 grams for long hair to the waist.
The above is just a reference number, the actual amount of use will vary depending on the product and different hair type, you can adjust it yourself and grasp it flexibly.
Henna experience and tips for use:
1) Stir the mud with hot black tea, egg white, honey, olive oil, etc., which can help better color and nourish hair.
2) If you need to deepen the color, you can leave the prepared henna for 8 hours before use.
3) Stir slowly with water when blending, not too thin, otherwise it will run down the hair.
4) When dyeing hair, you can use a toothbrush, a small row of brushes is the best, put your head down and hang down your hair, brush layer by layer, start brushing from the root of the hair, pick up a layer of hair and put it on your shoulder, and then pick up a layer to continue brushing, and wrap the whole hair with a shower cap, plastic bag or plastic wrap after brushing.
5) The amount of time henna mud stays on the hair varies depending on the shade of dyeing and the type of hair that needs to be dyed. The longer you stay, the darker the color.
6) Do not use shampoo to wash your hair immediately after dyeing, so as not to affect the effect of hair dyeing, and rinse with water. The color continues to deepen for three days after dyeing.
7) Wear disposable plastic gloves during operation, drape a towel on your shoulder, get it to your face and other parts, and wipe it off with a wet towel in time.
The color of henna pink hair dye.
Basically, it is a brown and brown series.
Henna hair dye powder is suitable for people.
1. This product is most suitable for gray hair, the dyeing effect is very good, the overall effect is that the black hair is mixed with brown (or golden yellow), which is not achieved by general hair dyeing products.
2. Due to the characteristics of henna plant hair dyeing powder, black hair needs to be dyed several times in a row to achieve the desired effect. The effect of dyeing hair of other colors varies depending on the type of hair and the original color.
3. Hair dye powder and accessories are natural plants or food, non-toxic, and the dyed hair is shiny and natural. While dyeing your hair, you are doing nutritious hair care, which is bright and natural.
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