Tresemme Weightless Silk Serum for Intense Salon-Level Shine Keratin Smooth with Heat Protection and Frizz Control - 3.3oz
Highly rated
$6.99
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Guests are saying
This hair serum is highly praised for its ability to control frizz, add shine, and leave hair feeling soft and manageable. Guests appreciate its lightweight formula that doesn't weigh hair down or leave it greasy. Many find it effective for both damp and dry hair, making it a versatile choice for daily use. The pleasant scent and ease of application further enhance its appeal, making it a go-to product for achieving healthy-looking hair.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.5 out of 5 stars with 526 reviews
quality: 4.54 out of 5
value: 4.62 out of 5
83% would recommend
80 recommendations
5 out of 5 stars
9 May, 2026
originally posted on influenster.com

Affordable lasts me a long time
Leaves my hair shiny, in no time. I have frizzy hair and it makes it very easy to style. I like the scent. After I started using the product styling my hair has been extremely easy. And effortless
5 out of 5 stars
4 May, 2026
originally posted on influenster.com

If you want moisture, shine and protection that is
I am a pick hair product girl! My hair is fine and I’ve struggled to keep it healthy and grow it out due to previously dying my hair constantly and and using too much heat. This Treme keratin, smooth, weightless silk serum was the start of my true hair health journey and let me tell you WOW!! I had very low expectations as I have trouble finding something that won’t make my hair greasy or leave a cast on it while also giving my hair shine, helping my hair health and protecting from heat. I have been using this product for about 6 months and can honestly say this product does just that. It makes my hair so much more manageable out of the shower as my hair can be dry and frizz easily (not with this product though!) it absorbs beautifully into my hair and distributes beautifully as well. The packaging is also great. I often loose the caps to my hair products and have never lost the cap to this one, it clicks on right and stays even with my traveling. Over the time I have used this product, I have noticed a significant improvement in my hair repairing breakage (I haven’t noticed any breakage since a month into using it!!), restoring a silky shine, and giving much needed hydration without making my hair heavy or oily! Love love love and will continue using!
5 out of 5 stars
29 April, 2026
originally posted on influenster.com

I use this almost every day because it’s lightweig
I’ve tried a lot of hair serums that make my hair look greasy, but this one doesn’t. The TRESemmé Keratin Smooth Shine Serum is super lightweight, so I only use a small amount on my ends. You can tell from the bottle that I use this product often. I use it every morning and it’s my go to for softer, shinier hair.
5 out of 5 stars
Thumbs up graphic, would recommend
22 March, 2026Verified purchase
Happy!
Love this! It gives your hair shine and leaves your hair so soft! I would recommend to anyone who has lifeless frizzy hair. You will have to try!
5 out of 5 stars
22 March, 2026
originally posted on influenster.com

Helps control frizz and adds shine without weighin
I really like this serum because it helps control my frizz and makes my hair look shiny without feeling heavy. A small amount goes a long way, and it makes my hair easier to manage. I also like the light scent. It’s perfect for everyday use, especially if your hair tends to get dry or frizzy.
5 out of 5 stars
15 March, 2026
originally posted on influenster.com

Shine on
This is a great product and recommended to anyone with freezing to dry damaged hair. That is looking for a shine. I absolutely love this product and will keep using.
5 out of 5 stars
Thumbs up graphic, would recommend
13 March, 2026Verified purchase
(no review title)
Controls frizz and makes hair smoother. Adds shine without feeling too heavy. Only a small amount is needed for good results
5 out of 5 stars
27 February, 2026
originally posted on influenster.com

All the shine none of the grease
The product provides fantastic softness and manageability. It easily takes and eliminates flyaways. It is surprising that it's not terribly greasy.
5 out of 5 stars
Thumbs up graphic, would recommend
19 February, 2026Verified purchase
Great serum for fine hair
Best serum for my very fine, straight, silver hair. It adds shine without weight ❤️
4 out of 5 stars
17 February, 2026
originally posted on influenster.com

Great product
Absorbs in the hair well. Value is amazing and adds plenty of shine to your hair. Helps with frizzy hair which is always a plus! Absolutely a good product would definitely use again
5 out of 5 stars
12 February, 2026
originally posted on influenster.com

My absolute go to for perfect shine
Use this everytime I flat iron my hair and I love it. It's not sticky or greasy and it leaves my hair nice and shiny. For frizz its could be better but the shine is on point
4 out of 5 stars
27 January, 2026
originally posted on influenster.com

In summary, Keratin Smooth not only smells good, b
A protein that strengthens and smoothes the hair fiber, with argan oil, known for providing shine and nutrition without leaving fatty residues. These ingredients work together to combat frizz and give the hair a silky and healthy appearance
3 out of 5 stars
Thumbs down graphic, would not recommend
5 January, 2026Verified purchase
Formula Change
I use to love this product ive purchased it at least 15x. I repurchase a week ago and the formula has definitely changed. it is 50% more runny. Left my hair super greasy even with a little bit of product.
1 reply from Tresemme Expert team - 4 months ago
Hi Diana, Thanks for sharing your thoughts. We’re sorry to learn this product didn’t work for you. Please email consumer.services@unilever.com, to better assist you.
5 out of 5 stars
15 December, 2025
originally posted on influenster.com

Smooth, shiny hair with less frizz and no heavines
I really like this serum for controlling frizz and adding shine. It makes my hair feel smoother and more manageable without weighing it down or looking greasy. A small amount goes a long way, and it works well on both damp and dry hair. Great affordable option for sleek, polished hair.
5 out of 5 stars
27 November, 2025
originally posted on influenster.com

Great product
Absorbency and consistency are great. Application is simple, use one pump, 1-2 drops of it according to the length of your hair and apply on your hair ends. It gives off shine, doesn't frizz.
5 out of 5 stars
28 October, 2025
originally posted on influenster.com

ride or die hair product
this, is my #1 favorite hair product. as someone who uses very minimal hair products, this is the one product I will always purchase. it makes my hair so so soft and smell incredible. I wish there was a perfume with the same fragrance 😫 whenever I go to a new hair salon, i’m always asked how my hair is so healthy and well maintained, and my hair is the main compliment i receive ☺️ i’ve used this product since 2017 🤎
5 out of 5 stars
25 July, 2025
originally posted on influenster.com

I love tresemme
This serum is lightweight but seriously powerful. It tames frizz instantly, adds smooth shine, and protects my hair from heat. A tiny amount is all I need..My hair feels nourished and polished, just like after a salon treatment....
1 out of 5 stars
28 June, 2025Verified purchase
Discontinued??
Has the original serum been discontinued? This new "blowout" is way too greasy. The original was perfect! Very disappointed!
1 reply from Tresemme Expert team - 11 months ago
We're sorry to hear about your experience with our Styling Aid Keratin Smooth Serum. Your feedback is important to us. Please contact our Consumer Services team at consumer.services@unilever.com with your contact details and the ref ID: 51617600 so we can gather more details and assist you further.
5 out of 5 stars
Thumbs up graphic, would recommend
22 April, 2025Verified purchase
Perfect
Just what my hair needed!
5 out of 5 stars
28 March, 2025
originally posted on influenster.com

Makes hair smooth, soft and frizz free!
I’ve been using the Tresemme Hair Serum for a while now, and I absolutely love it! It leaves my hair feeling incredibly smooth, soft, and frizz-free. The serum has a lightweight, non-greasy formula that tames flyaways without making my hair look oily. One of the best things about this product is how well it works for heat styling. I apply a small amount before using my straightener, and it enhances the sleek, polished look while adding a beautiful shine.