If you follow me on YouTube (please subscribe), you know that I’m constantly changing my hair color. Sometimes I’m platinum blonde. Sometimes I’m medium blonde. And sometimes I have dark brown hair.

While switching up your hair color is fun, frequent bleaching and toning can seriously damage your hair. Bleach weakens the hair structure, causing dryness, breakage, split ends, and dullness.

After learning this the hard way, I finally committed to repairing my damaged hair properly.

The good news?
You can fix damaged and bleached hair at home with the right products and habits.

This guide covers:

✔ The main causes of hair damage
✔ The best products for damaged and bleached hair
✔ Practical tips to repair and prevent breakage

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What Causes Hair Damage?

Understanding why hair becomes damaged helps you prevent future problems.

1. Chemical Damage

Chemical processing is the biggest culprit.

Common causes:

• Bleaching hair

• Coloring hair

• Highlights

• Keratin treatments

• Relaxers

• Perms

Bleach is particularly harsh because it strips natural pigment and weakens the hair bonds.

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2. Physical Damage

Environmental stressors slowly degrade hair health.

Examples:

• Sun exposure

• Pollution

• Hard water

• Seasonal weather changes

• Dry indoor air

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3. Mechanical Damage

Daily styling habits can cause gradual breakage.

Examples:

• Flat irons

• Curling irons

• Hot rollers

• Rough brushing

• Tight hairstyles

How to Repair Damaged and Bleached Hair

If your hair feels dry, brittle, or constantly tangled, these solutions make a noticeable difference.

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1. Use Olaplex No. 3 Hair Perfector

This is the BEST conditioning treatment for damaged hair. You can leave it on overnight.

Olaplex No. 3 is widely considered one of the best treatments for damaged hair.

Why it works:

✔ Repairs broken hair bonds
✔ Strengthens weakened strands
✔ Improves elasticity
✔ Reduces breakage

For heavily damaged hair, leave it on for several hours or overnight.

Best for:

• Bleached hair

• Over-processed hair

• Hair prone to breakage

View on Amazon

✓ Best deep conditioning treatment for damaged hair

This is the #1 best hair product for damaged blonde hair.

2. Apply a Leave-In Treatment Daily

Leave-in treatments are essential for damaged hair.

A keratin-infused leave-in spray helps:

✔ Detangle hair
✔ Add moisture
✔ Protect from heat
✔ Reduce frizz

Spray lightly each morning and before heat styling.

I used to use the “It’s a 10” leave in spray, and then I stopped using it because it’s not cheap. Unfortunately, my hair has suffered as a result! So I sucked it up and purchased It’s a 10 again last night.

It’s a 10 has a few varieties. I like the one with keratin in it. Spray this in your hair each morning and before using any hair dryers or curling irons.

View on Amazon

✓ Great hair product for heat protection before styling

✓ Great hair product for spraying before brushing through knotted hair

3. Use Olaplex No. 7 Bonding Oil

Hair oils can be incredibly beneficial when chosen carefully.

A high-quality bonding oil:

✔ Smooths split ends
✔ Adds shine without greasiness
✔ Protects from heat damage
✔ Reduces frizz

Look for oils that avoid drying alcohols.

You honestly can’t go wrong with Olaplex No. 7.

I’ve tried the cheaper hair oils from TJ Maxx, and nothing compares to Olaplex. This bonding oil protects damaged hair ends and you only need a little bit of it.

Unlike other hair oils, Olaplex doesn’t have any alcohols or other ingredients that temporarily add shine, but long term dry out your hair. Plus, Olaplex No. 7 doesn’t look greasy.

 

View on Amazon

✓ Best hair product for split ends

4. Consider a Keratin Treatment

Keratin treatments can help smooth damaged hair.

Benefits:

✔ Reduces frizz
✔ Improves manageability
✔ Adds shine
✔ Strengthens hair temporarily

Results typically last 6–7 weeks.

How to Prevent Further Hair Damage

Repairing your hair is only half the battle. Prevention is crucial.

5. Reduce Bleaching and Coloring Frequency

Of course, the best thing to do is to prevent hair damage in the first place.

Frequent chemical processing continuously weakens hair.

If possible:

✔ Extend time between bleaching
✔ Avoid unnecessary toning
✔ Use lower-volume developer

The bleaching and coloring process weakens and damages hair.

6. Brush your hair in the shower (with conditioner)

Don’t go rough with the hairbrush!

Brush your hair in the shower when you have a repairing conditioner on it. It will be easier.

Tip: Brush your hair from the bottom and work your way up. That way, you get rid of the knots in your hair at the bottom first vs. starting at the root of your head.

I love the Wet Brush the most.

7. Limit Heat Styling

The heat from curling irons and hair straighteners damages your hair.

Want beachy waves or voluminous hair?

Put your hair in two space buns at night and take them out in the morning for beachy vibes, heat-free!

Or, put foam curlers in your hair at night and let them work their magic.

8. Always Use Heat Protectant

If you aren’t willing to give up the curling irons and/or hair straighteners, apply a heat protectant to your hair.

The TRESemme Thermal Creations Keratin Smooth Leave-In Heat Protectant Spray is the best drugstore heat protectant. For the best heat protectant of all time, use Olaplex No. 7 bonding oil.

9. Deep Condition 2–3 Times Per Week

You’ll want to use Olaplex No. 3 to repair damaged hair, but to prevent damaged hair in the first place, use a good deep conditioner 2-3 times a week.

I love the love Aussie 3 Minute Miracle Deep Conditioner and the L’Oreal Total Review 5 conditioner.

10. Switch to Sulfate-Free Shampoo

Some shampoos and conditioners are harsher on your hair than others.

Use a sulfate-free shampoo like the L’Oreal Paris EverPure Repair and Defend Sulfate Free Shampoo.

Sulfate free shampoos don’t dry your hair as much as a regular shampoo.

11. Trim Hair Regularly

Split ends are like weeds – they get worse and worse, causing more breakage over time.

Get a haircut every 6-8 weeks to keep your hair healthy and to prevent more hair breakage and split ends.

12. Give Silk Scrunchies a Try

Seriously – silk scrunchies are softer and easier on your hair.

13. Buy a Humidifier

Humidifiers aren’t just a fix for dry skin in the winter.

Dry air can also dry out your hair!

Use a humidifier to prevent your hair from becoming too dry or damaged, especially in the winter.

14. Avoid Tight Hairstyles

And by loose, I mean don’t pull it back into a ponytail.

Ponytails don’t just contribute to a receding hairline; they are also harsh on your hair.

If you HATE having hair in your face, wear a cute headband to pull your hair back when you wear it down.

Nutrition for Healthier Hair

Hair repair isn’t only external.

14. Add collagin peptides to your coffee

Want to keep your hair super healthy? 

One final tip for keeping your hair lush and luxurious looking is to take a collagen supplement daily.

Collagen work wonders for your hair, nails, and overall health.  

I personally add the Orgain Collagen Peptides Protein Powder to my coffee each morning.

It has no taste, it’s affordable, and it is high in protein too.

15. Take Hair Vitamins

Seriously, vitamins help! Amazon has lots of great hair vitamins.

Quality hair vitamins may help:

✔ Strengthen hair
✔ Improve growth
✔ Reduce shedding

Final Thoughts: Can You Fix Damaged Hair?

Yes — damaged and bleached hair can absolutely improve.

Consistency matters more than perfection.

✔ Use bond-repair treatments
✔ Moisturize regularly
✔ Protect from heat
✔ Avoid unnecessary damage

Small changes create visible results.

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