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2024-07-25|Lena
How often should you dye your hair without affecting scalp health? ROUND2 stylist Misa suggests a 2-month interval for dyeing and over 3 months for bleaching. For root touch-ups or new gray hair highlights, visit the salon every 2 weeks to 1 month to avoid noticeable root showing.
Catalogue
I.How long does one dye job last? 4 factors affecting color longevity
II. How often should you dye your hair?
1.Full Head Dye: Differentiating with and without bleaching
2.Root Showing and Gray Hair Highlights: How often to touch up?
III. What happens if you dye your hair every month?
How long does one dye job last? 4 factors affecting color longevity
Many factors influence how long hair dye lasts. Aside from sun exposure causing hair damage, your hair quality also significantly affects dye longevity. You might have experienced decreasing satisfaction with your hair despite visiting the same stylist multiple times. This isn't due to the stylist's declining skills but rather your hair quality deteriorating from frequent styling without proper care. Here are the four main reasons affecting hair color longevity:
Frequent sun exposure and beach activities
Sunlight intensifies hair oxidation, especially in damaged hair, leading to faster color fading.Frequent dyeing, perming, and heat tool use
Each session damages cuticles, creating more gaps and speeding up color loss. Heat tools degrade hair proteins, making hair brittle and losing moisture faster.Lack of hair care and poor hair quality
Frequent styling without proper care results in severely damaged cuticles, reducing the quality of future dye jobs.Using inappropriate hair products
Alkaline shampoos accelerate color loss. After dyeing, use color-protecting or color-depositing shampoos.How often should you dye your hair?
Before determining the appropriate interval between dyeing sessions, it's essential to understand the principles of hair dyeing and bleaching. Hair dyeing uses an alkaline agent to open the hair cuticles, allowing the dye to penetrate the cortex. Bleaching involves a bleaching agent to open the cuticles and hydrogen peroxide to strip the natural color. Repeatedly opening the cuticles can cause them to become damaged and unable to retain nutrients and moisture, leading to rough and dry hair. Additionally, the scalp can become sensitive, inflamed, and itchy from the chemicals.
Full Head Dye: Differentiating with and without bleaching
The interval for full head dyeing depends on whether bleaching is involved. For non-bleached hair, stylist Misa suggests a 2-month interval. However, for bleached hair, the interval should be 3 months due to the greater damage caused by bleaching, which requires a longer recovery period for the hair.
Stylist Misa's bleaching works
Root Showing and Gray Hair Highlights: How often to touch up?
For gray hair touch-ups and root touch-ups, stylist Misa suggests re-dyeing every 2 weeks to 1 month, as hair grows about 1 cm each month.
To avoid frequent root touch-ups, choose a hair color close to your natural shade, such as black tea, brown, or blue-black. This minimizes the appearance of new growth and reduces the need for frequent touch-ups, allowing you to wait until the next full head dye. However, for special hair colors, the contrast with new growth requires touch-ups at least once a month.
Misa's root touch-up work: The client's hair color is well-maintained, ensuring seamless root touch-up integration.
A key prerequisite for touch-ups is maintaining the previously dyed color well, ensuring effective touch-ups. If the previous dye has faded, root touch-ups will result in a stark contrast between the roots and the rest of the hair. Therefore, it's recommended to use color-depositing shampoo after dyeing to maintain the hair color. Monthly root touch-ups can then extend the color's longevity, increasing the value of the dye job.
Further Reading: Should you use shampoo after dyeing your hair? Follow these 5 tips to maintain your hair color longer!
What happens if you dye your hair every month?
Many people's jobs require frequent hair color changes, but this can lead to dry, dehydrated scalps, causing tightness, sensitivity, and even inflammation. Repeated styling can worsen cuticle damage, leading to frizz and, in severe cases, hair breakage. Misa offers a care guide for those who often change their hair color: "At home, use scalp water, which is like a toner for your scalp, and choose hair products with hydrating ingredients that can metabolize chemical residues. For deep care, visit a salon for scalp treatment after dyeing."
Recommended Hydrating and antioxidant hair products: MEM Empower Hair Products
Is there a difference between DIY and Salon Hair Dye?
Many people buy dye kits to cover gray hair or touch up roots at home. However, improper use can cause scalp sensitivity, redness, inflammation, and severe color buildup, affecting future dye results. Misa explains that DIY dye results often differ from the target color due to individual hair conditions and base colors. The primary concern is color buildup, as dye components or base colors (for gray coverage) can prevent achieving the desired color in subsequent dye sessions.
Further Reading: What is color buildup? Does using foam dye to cover gray hair cause color buildup? Here's what professional hairstylists say.
Can you re-dye damaged or permed hair?
During the dyeing process, if the color turns out too bright or isn't what you wanted, you may want to adjust it within a week. Misa suggests having a stylist evaluate your hair's condition to see if it can be corrected immediately. If your hair is severely damaged, you'll need to care for it at home and wait for new growth before making changes.
To avoid irreversible hair damage, reduce DIY dyeing and frequent bleaching. If work requires frequent color changes, focus on home hair care and salon treatments. Good hair quality is key to achieving the best results.
Stylist Information
Misa's Instagram: @misa__round2
Address: 4F, No. 124, Section 4, Zhongxiao East Road, Da'an District, Taipei City
Recommended products after hair dyeing
Toning Shampoo
Color Protecting Shampoo
Color-Deposite Shampoo