If you want to dye your hair, you can't have less scientific methods


There are many ways to process hair dye, and there are also many ways to use hair dye. Today, I will show you the scientific method of hair dye! 1. Before dyeing hair: (1) Buy conventional hair dyes and test for allergies. Apply a small amount of hair dye behind the ear or on the arm 1-2 days before dyeing the hair, and check it after ten minutes. If there is no irritation such as redness, swelling, burning, etc., you can continue to use it.

If irritation occurs, it is recommended to stop immediately. If the reaction is severe, go to the hospital for dermatology. (2) Do a good job in skin protection.

Apply lotion or petroleum jelly on the hairline and behind the ears first to prevent the hair dye from polluting the skin and causing damage. 2. During hair dyeing: (1) Avoid high temperature. Do not wash your hair with hot water, and it is not recommended to stand under the heater in the bathroom, which may accelerate the loss of pigment particles and affect the hair dyeing effect; (2) Avoid polluting other parts of the skin.

If you accidentally touch the skin, you should wipe off the cotton swab or facial tissue as soon as possible, rinse with clean water, and clean it with some cleansing products if necessary; (3) When dyeing hair, brush from the root to the end of the hair. Use on eyelashes and eyebrows; (4) It is not recommended to dye and perm hair at the same time. Because the hair dyeing process is equivalent to opening the hair scales and inserting pigment particles into them. After coloring your hair, a perm will open up the hair scales again, which can lead to color loss and secondary damage to your hair.

3. After dyeing hair: (1) Avoid high temperature and exposure. Heat and light can catalyze the rate of oxidation, accelerating the fading of hair dyes. Therefore, after dyeing hair, pay attention to avoid exposure to the sun and high temperature, and do a good job of sun protection for daily travel; when washing hair, the water temperature should not be too hot; when blowing hair, the temperature of the hair dryer should not be set too high or close to the hair.

(2) Do a good job of hair care. It is recommended to use shampoos with weak acidic pH and moisturizing and repairing effects, and avoid using shampoos with strong cleaning power such as soap bases, which will accelerate hair fading; hair conditioners, hair care essential oils and other products can help close hair scales and delay hair loss. Fade and repair damaged hair.

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