Repair Damaged Hair

Blonde hair, cut in a bob
Photo: Vitalii Smulskyi/Shutterstock
Q: I am 29. I naturally have dark blonde hair that, for the last 10+ years, I have dyed to a light ash blonde. Over the summer, I used a flat iron (not a very good one) and damaged my hair. My thought now is that I need to quit dyeing my hair so light.
 
I have also cut my hair to about my chin, and I'm thinking it might help to cut my layers shorter as well. Are there any products you would recommend that would be better for my hair? What can I do to begin the repair process without shaving my head?
 
A: Well, if your hair was layered before cutting it to chin length, re-layering is a smart move! It allows you to selectively snip away the most fried, frayed ends without sacrificing your overall length.
 
Because your hair has been lifted to a light ash blonde for over a decade, its internal structure (the keratin cortex) is significantly weakened. Adding a cheap flat iron to already high-porosity, bleach-treated hair is a recipe for severe heat damage. However, you don't need to shave your head to bounce back.
 
Here is what your hair recovery routine should look like:
 

1. Use a Bond Builder

Standard deep conditioners only coat the outside of the hair shaft to smooth frizz. To actually rebuild structural strength inside bleached and heat-damaged strands, you need a bond-building treatment (such as Olaplex No. 3, K18, or Redken Acidic Bonding Concentrate). Use this 1–2 times a week before conditioning.
 

2. Moisture, Protein & Gentle Care

Pair your bond treatment with a sulphate-free, ultra-gentle shampoo and a moisture-rich deep conditioning mask. If your hair feels mushy or overly gummy when wet, alternate your moisture mask with a protein treatment to restore tensile strength. Follow up with a leave-in conditioner and a lightweight hair oil or serum to seal the cuticle.
 

3. Smart Heat Protection

When hair is compromised, heat styling should ideally be put on pause. If you must use hot tools:
 
• Always apply a dedicated heat protectant spray before any thermal tool touches your hair. Heat protectants act as a physical barrier and distribute heat more evenly across the strand.
 
• Upgrade your tool and lower the temperature: Use a modern iron with precise digital temperature controls, and never exceed 300°F–325°F (150°C–160°C) on lightened hair.
 

4. Reconsider Your Color Strategy

You don't necessarily have to abandon blonde forever, but taking a break from high-lift bleach will give your hair room to recover. Talk to your stylist about transitioning to a soft, low-maintenance balayage, or using demi-permanent toners instead of harsh permanent dyes to give your hair a much-needed break!
 
©Hairfinder.com
 
See also:
 
Damaged hair
 
Will coloring damage my hair?
 
Will I damage my hair if I use my curling iron and flat iron too much?