The Assort Hair Philosophy: Why We Say “No” to the Perm-Bleach Combo
At Assort, we love a hair transformation as much as anyone, but there is one line we simply won’t cross: mixing bleach and perms. While it might be tempting to chase both texture and a lighter shade, the chemical reality is a recipe for disaster.
😱 The Science of “Over-Processing” 😱
Both perming and bleaching are intense chemical processes that alter the internal structure of your hair:
| Bleaching | Perming |
| Bleaching dissolves and removes your natural pigment by opening the cuticle and breaking down the hair’s protein bonds. This step is necessary for those wanting a unique color design or tone lighter than their natural hair or currently dyed hair. | Perming breaks and reforms the disulfide bonds to change the hair’s shape. This process is used to give flat hair volume with waves or curls—or permanently straighten curly textured hair. |
[🚩] When you combine these two, the hair loses its elasticity and structural integrity. Instead of bouncy curls or bright blonde, you are often left with “gumminess” (hair that feels like wet noodles), extreme breakage, or hair that simply snaps off at the touch.
💔 The Harsh Reality: 💔
1. Structural Collapse (The “Gummy” Effect)
The most common risk is the destruction of the hair’s protein structure. Bleach strips the hair of moisture and pigment, while perms break the disulfide bonds. When used together, the hair loses its “skeleton,” becoming soft and gummy when wet and brittle when dry.
2. The “Chemical Haircut” ☣️
Because the hair’s elasticity is compromised, it becomes incredibly fragile. The hair may simply ⛓️💥 snap off near the root or at the point where the two treatments overlap. This often leads to uneven, involuntary layers or significant thinning of your hair.
3. Total Loss of Texture
❌ For Perms: Bleached hair is often too porous to “hold” a new shape. The result isn’t a beautiful curl, but a frizzy, lifeless “mop” texture.
❌ For Bleach: Hair that has been permed is already sensitized; adding bleach can cause the cuticle to “blow out,” leaving the hair looking dull and straw-like regardless of how much toner or conditioner is applied.
4. Scalp Sensitivity and Irritation 😣
Both processes involve high-pH chemicals. Layering these treatments increases the risk of chemical burns, scalp redness, and extreme irritation, as the skin may already be sensitized from the first procedure.
Summary of Physical & Visual Consequences of Perm-Bleach Damage:
| Outcome | Likelihood | Description |
|---|---|---|
| Severe Breakage | High
🚫 |
Hair may break off, sometimes close to the root, especially around the fragile hairline. |
| “Melting” | Moderate
⚠️ |
Hair becomes gummy and stretches like chewing gum until it breaks. |
| Extreme Frizz | High
🚫 |
The “curl” is actually uncontrolled damage. Rather than structured curls, the hair can become frizzy, dull, and damaged, resembling cotton candy. |
| Uneven Results | High
🚫 |
Hair is too damaged to hold a new shape. Due to varying levels of damage, some sections may over-process while others do not curl at all. |
😭 Irreversible Damage: Once the perm-bleach damage is done, the internal hair structure is permanently destroyed and cannot be fixed by salon conditioning treatment or luxury mask; the only remedy is to cut it off.
🚨 Our “3-Year Rule” for Hair Health 🚨
To ensure your hair remains healthy, shiny, and intact, Assort salons follow a strict safety protocol. We prioritize the long-term integrity of your hair over a temporary trend.
♦ No Perms on Bleached Hair: If you have bleached your hair within the last 3 years, we will not perform a perm service.
♦ No Bleach on Permed Hair: Similarly, if you have received a perm within the last 3 years, bleach services are off the table.
Why 3 years? On average, hair grows about 12cm to 15cm per year. It takes approximately three years for chemically treated hair to grow out far enough to be safely replaced by virgin hair.
Before making any big decisions about your hair, there is one step that is absolutely vital: the strand test. While our “3-year rule” serves as a primary safety net, hair history can sometimes be complicated—maybe you’ve used a “lifting” box dye or forgotten exactly when your last highlight session was. A strand test removes the guesswork and provides a “sneak peek” at how your hair will react to chemicals.
🔎 What is a Strand Test? 🔍
A stylist takes a small, inconspicuous section of hair (usually from the nape of the neck) and applies the perm or bleach solution to it. We then monitor it closely to see how the hair responds before committing to your entire head.
Why It’s Non-Negotiable
♦ Predicts Breakage: It reveals if your hair is strong enough to handle the process or if it will reach a “melting point.”
♦ Tests Color Results: On bleached hair, it shows if the toner will take evenly or if it will turn patchy due to porosity.
♦ Reveals Hidden History: Sometimes hair “remembers” treatments from years ago that you might have forgotten. The chemistry doesn’t lie.
♦ Saves Your Look: It is much better to find out a treatment won’t work on 1cm of hair than to realize it halfway through a full-head service.
🏆 The Assort Standard 🏆
At Assort, we view the strand test as a professional “safety check.” If a strand test shows signs of extreme dryness, loss of elasticity, or poor color uptake, we will advise against the service and work with you to find a healthier alternative.
Think of it like this: You wouldn’t test a parachute for the first time while jumping out of a plane. A strand test is our way of making sure your “hair landing” is soft and successful every time.
Does your hair have a complex history with color or texture? Book your appointment to have a consultation with our stylists to see what your hair can safely handle.
✂️ The Only Way Around It: The Fresh Start ✂️
If you currently have permed ends and want to go blonde—or bleached ends and want a perm—there is only one safe solution: The Cut.
We will only perform these services if the previously treated hair is completely removed. This ensures that the chemicals only interact with healthy, untreated hair, preventing “chemical haircuts” and keeping your style looking professional.
Our Promise: We aren’t being difficult; we’re being professional. We’d rather turn down a service today than have you deal with damaged hair tomorrow.
💡 Styling Alternatives for Bleached Hair 💡
Growing out your bleached hair but still want to achieve a different hair texture?
If you’ve bleached your hair and are craving curls—or you are dreaming of sleek, straight strands—don’t lose hope. Just because we won’t use chemicals doesn’t mean you’re stuck with one look.
Here are the safest ways to switch up your style without risking a “chemical haircut.”
1. The Classic Approach: ♨️ Hot Tools ♨️
If your hair is in relatively good condition, you can still use heated curling wand or straight iron to achieve the look you want. However, since bleached hair is already “high-porosity,” you must follow these rules:
♦ Always Use Heat Protectant: This is non-negotiable. It creates a barrier to prevent the iron from “cooking” the remaining proteins in your hair.
♦ Lower the Temperature: Avoid the maximum setting. Aim for 150°C to 180°C. Bleached hair can actually melt or discolor at higher temperatures.
♦ Limit Frequency: Try to give your hair a “heat break” a few days a week to prevent cumulative dryness.
Pro Tip: If you have bleached hair, focus on Hydration Masks and Leave-in Conditioners. The healthier your hair is, the better it will hold a curl from an iron or a braid!
2. The Gold Standard: ➿ Heatless Styling ➿
To maintain maximum hair health, heatless methods are your best friend. They create beautiful shapes without any thermal or chemical stress.
♦ For Wavy Texture: Try braiding your hair while it is about 80% dry. Smaller braids create tighter crimps, while two large French braids create soft, beachy waves.
♦ For Bouncy Curls: Use rollers (velcro or foam) or the popular silk heatless curl ribbons. These are perfect for overnight styling and result in zero damage.
♦ For Straightening: Look into the “hair wrapping” technique (Doobie), where you wrap damp hair tightly around the circumference of your head and pin it in place to dry flat.
Are you currently using any heatless styling methods, or are you looking for product recommendations to help your hair hold its shape better? Feel free to ask our stylists for recommendations.
Ready for a change? Consult with our stylists to plan your hair journey safely!
🫶 Visit Us
Ready for your own transformation? Book your duo appointment today and let’s create something beautiful together!
Book your spot here: https://app2.bireki.jp/p/reserve/11714/assort_tokyo_en
Address: B1F Rihei Building, 2-10-28 Kita-Aoyama, Minato-ku, Tokyo, 107-0061
OPEN: 7 days a week 10:00-18:00