L’Oreal Paris Smooth Intense Instant Smoothing Serum

BY L'oreal Paris
4.6/5     4 Reviews

Product Description

L'Oreal Paris Smooth Intense Instant Smoothing Serum is infused with argan oil and silk protein that nourish your hair from root to tip, making it soft, silky, and shiny. This rich serum rejuvenates and revitalizes each strand and makes your hair frizz-free and easy to manage. It also reduces split ends, improves the texture of your hair, and protects it from the harsh sun rays. It comes in a yellow plastic bottle with an open flip cap.

Product Reviews


4 Ratings & 4 Reviews


Would recommend this to a friend


Reduces split ends


Protects against sun damage



Renews hair texture

Makes hair smoother

Deep nourishment

48-hour protection

Makes hair frizz-free


Can make oily hair greasy

Controls frizz mildly



Convenient packaging


Can be used daily

Generous quantity

Can be used as a pre-styling serum


Does not control frizz well

Effects last for just 2-3 hours

I started using hair serums about a few years ago. And over the years, I have skipped from one brand to another. Last month, I got L'Oreal Paris Smooth Intense Instant Smoothing Serum. It comes at a very affordable price. The quantity is quite a lot, so even after using it every day, I still have so much left.

The reason I started using serum is because of straightening. And I deeply regret doing that to my hair. Because now my hair needs extra care which is infuriating!

This serum comes in a plastic bottle and a flip-open cap which shuts sturdily. It is easy to use and can be carried around without spillage. The serum’s texture is as thick as oil, but it is non-greasy. The best thing about this serum is, it can be used both on dry and damp hair. So whenever I need a touch-up or want to style my hair with heating tools, I simply apply it all over.

Now that my hair is growing, I am getting a lot of frizz on my crown and temple area, which looks ugly. So I started using this serum for the sole purpose of controlling it. Does it work? Well, it makes my hair silky soft, but the frizziness is only mildly controlled. Moreover, it lasts for about two to three hours only.

I think I would have loved it if I didn’t have the frizziness problem. I will recommend it only to those whose hair isn’t badly damaged. For those whose hair needs serious attention, this serum is too mild.

Makes my hair silky



Easily available

Controls frizz


Makes the hair silky and soft

Deeply nourishes dry hair

Detangles easily



I think L'Oreal Paris Smooth Intense Instant Smoothing Serum is one of the most accessible serums that actually works. I have been using it for months now and can’t seem to get over it. My straw-like hair feels deeply nourished, and the silkiness is ah-ma-zing.

It controls my frizz decently and combing has never been this easy. It also has this very subtle organic smell which does not irritate my nostrils. I will recommend this serum to dry and frizzy hair.

Nice fragrance but the packaging is not good


Revives dull hair

Long-lasting fragrance

Gives a glossy finish


Not travel-friendly

Tends to spill

This serum from L’Oreal Paris makes my hair very shiny, and it stays like that for the whole day. It also controls my frizz decently. I use this serum to give my dull hair some life. And I’m happy that is does precisely that. I also love its fragrance. My hair smells like I just took a luxurious hair bath. The only default I can find about it is the flip-open cap. Since the serum is runny, sometimes it spills from the lid making it a red flag to carry it around.

Thumbs up!




Does not weigh your hair down

Imparts shine

Provides protection from harmful sun rays



This serum made me appreciate the existence of serums. I just bought this to shield my hair from the environmental distress, but I ended up benefitting a lot. This serum is grease-free, so it does not weigh my hair down. Instead, my hair beautifully flows free with so much lush and gloss. The difference between before and after the application is clearly visible. I am so happy with this serum from L’Oreal. A giant thumbs up to it!

Top Questions And Answers

April 5, 2019

What are the ingredients in L’Oreal Paris Smooth Intense Instant Smoothing Serum?

Stephanie MingApril 6, 2019

Stephanie MingApril 6, 2019

The ingredients are:

  • BHT
  • Geraniol
  • Citronellol
  • Dimethiconol
  • Limonene,
  •  Linalool
  • Benzyl
  • Salicylate
  • Benzyl Alcohol
  • Hexyl Cinnamal
  • Amyl Cinnamal
  • Hydroxycitronellal
  • Cyclopentasiloxane
  • Alpha-Isomethyl Ionone
  • Butylphenyl Methylpropional
  • Parfum/ Fragrance (F.I.L C33517/2)
  • Camelina Sativa Oil/ Camelina Sativa Seed Oil
  • Argania Spinosa Oil/ Argania Spinosa Kernel Oil
  • Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde

April 4, 2019

How to use L’Oreal Paris Smooth Intense Instant Smoothing Serum?

Michelle lislieApril 5, 2019

Michelle lislieApril 5, 2019

Use L'Oreal Paris Smooth Intense Instant Smoothing Serum in the following way:

  • Pour several drops of the serum on your palm according to your hair length.
  • Run your fingers over your dry hair and evenly distribute it along the lengths of your hair.
  • Do not rinse out.

April 3, 2019

Can L’Oreal Paris Smooth Intense Instant Smoothing Serum be used as a heat protector?

Rachel GoldApril 4, 2019

Rachel GoldApril 4, 2019

Yes, this serum from L’Oreal Paris is an oil-free formula, so it can be used as a heat protector before straightening, blow drying, or using any styling heat tool.

April 2, 2019

What type of hair is L’Oreal Paris Smooth Intense Instant Smoothing Serum suitable for?

Prerna SharmaApril 3, 2019

Prerna SharmaApril 3, 2019

L'Oreal Paris Smooth Intense Instant Smoothing Serum is suitable for unmanageable, dry, frizzy and damaged hair.

April 1, 2019

Is L’Oreal Paris Smooth Intense Instant Smoothing Serum suitable for oily hair?

Sonali DubeyApril 2, 2019

Sonali DubeyApril 2, 2019

This serum is suitable for oily hair but only when used in the correct amount and the right way. Oily hair types should apply it only on the tips.

March 31, 2019

What size does L’Oreal Paris Smooth Intense Instant Smoothing Serum come in?

Lizzy PaesApril 1, 2019

Lizzy PaesApril 1, 2019

L'Oreal Paris Smooth Intense Instant Smoothing Serum comes in a 100 ml bottle.

March 30, 2019

What is the shelf life of L’Oreal Paris Smooth Intense Instant Smoothing Serum?

Mahira AliMarch 31, 2019

Mahira AliMarch 31, 2019

L'Oreal Paris Smooth Intense Instant Smoothing Serum will last up to 36 months from the date of manufacturing.