How to Repair Damaged Hair | Dermatologist Tips

I'm now hopeless because I did a lot of research on how to fix damaged hair and the answers were always damaged hair is irreversible. I used to have a healthy, long, straight hair but it's now extremely damaged, dry, frizzy, and looks the worst. My hair is damaged because I once used a product and it made my hair fall unusually and it started to go wrong from that point on. I tried to use the products that I once used when I had healthy hair but it doesn't work anymore.

Wow, a doctor is promoting a product that has ruined the hair of so many thousands. This is insanity.

Your recommendations ruined my hair. Thanks babe!

Can we use these hair products if hair has seborric dermatitis problem and they get rough after using all medicated shampoo

I like the Moroccanoil brand for my hair. I have curly/wavy and dry hair.

Is there any reason why my hair is shedding like crazy when I use conditioner?

silk is a fibre, and satin is a weave... purchase a silk or poly satin weave pillowcase.

Dr Jenny very informative thank you … would you add anything for ladies in 50s for menopausal hair 😊

Please tell us what is best temperature

Hair needs a shampoo to especially if you’re using a lot of product

I have virgin hair , haven't done any sort of styling or dyeing . My hair type is dry so I do oil it for 2 times a week . Yet they're thin and have split ends , wht could possibly be the cause ?

So should I dry my hair intensely with a towel?

Or leave it drying slowly in a towel?

Hi, what dry shampoo will you recommend?

Physics....for hair. LoL!😂

At my most recent salon appointment my hair was washed for the first time with Olaplex shampoo and conditioner. The next morning I began experience extreme scalp tingling and itchiness. 3 months later I am still experiencing these symptoms, although the intensity has subsided. It is heartbreaking and I am at a loss as to the right repair method for my scalp. I am someone who never used product, hair dryers or hair dye. My hair and scalp was healthy and dandruff free.

Thank you! Great info. I use K18 and Olaplex 3 also. I prefer K18. But, my bleached hair is still dry. I am going to try the moisturizing products you mentioned.

What’s your take or review on the Cantu deep treatment mask?

Thank you very much for your video. Very interesting- a video on K18 would be great -

I known you are right

Everything you saying I dont use heat on my hair everything you say I do right

Thanks for these tips!!
Can you please make a video on taking care of hair and using right products for someone who stays in the coastal. I mean the salt/hard water is really damaging my hair.
Thanks will appreciate it.

Awesome video!

Thank you Dr. Jenny Liu
I am Jennifer Liu..now married Jennifer Espinoza.
I just took your advice with K18.
Wow miracle potion!!
I had very self inflicted chemically treated hair...
I tried many products beside natural remedies. No success.H
Tried masks..and coconut oil.
This product after 1 time changed my dried coarse hair to soft and pliable glossy hair. So pleased with the reults😚

Omg Briogeo worked for me… for one time but ironically, even though it doesn’t contain any sulfates, it felt SO dry and bitter after rinsing it off. I love the idea but I couldn’t work with the bitter feeling after shampooing

This was a great class!!
I was washing my hair wrong 😬. I just learned the right way with you!
Thank you so much! ❤️

Could you do a video on how to properly care for nails? Should we push back the cuticles or leave them be? Do we cut straight across the nail or angled? etc....Please. Thank you!

thank you for the thorough video. i've been curious about the difference between Olaplex and K18. if K18 is more permanent then i might ditch Olaplex 3 for K18. Olaplex 3 hasn't been bad for me but i def notice how temporary it is. i feel like the Olaplex effects fade within a couple days. it'll make my hair soft and shiny but by day two my hair looks lackluster again.

Thanks so much! Olaplex didn't seem to do much for me, but I'll try the K-18.

trimming the damaged hair does the work for you ? I got my hair overprocessed and damaged 7 months back and was experiencing severe hairfall so shaved it but had the same problems with the new grown hair too...it was very weak thin and dry and the hairshedding is the same.....please help im too young for all of this, 21M .....does minoxidil repair damaged hair ?

Very good tips. Thanks

A video comparing the Olaplex and K18, yes please! Love your science-based content Dr. Liu.

Ty💕. Can you make another video for k18 would be great.

I started using Olaplex shampoo and conditioner about 6 months ago and found an improvement in my older, fragile hair. I'm losing less hair and it feels much thicker.

👌👌 thank you Dr.Liu

Excellent video . . . so helpful! One of the best I have seen on hair care suggestions.
Dr. Liu, you mention that your hair is coarse and straight. I have fine, thin, fragile hair. Would the products you suggest be suitable for my hair type? I would also love a video on moisture enhancing hair products vs those which are more protein based. I have read that maintaining a balance between protein and moisture is important, but am not sure how best to accomplish this. And yes, I would love a video comparing Olaplex no. 3 and K18 :-).

Science based hair care info is a great addition to skincare videos.
I'm curious about silicones and sulphates in hair care products, there is a whole trend avoiding these ingredients and I wonder if they have a point?

This was so needed! Thank you for all the information and products!

Can I put pure glycerin on my hair to moisturize it?