Tresemme Weightless Silk Serum for Intense Salon-Level Shine Keratin Smooth with Heat Protection and Frizz Control - 3.3oz
$6.99
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This hair serum is praised for its ability to enhance hair health by providing shine, smoothness, and frizz control, making it particularly effective for various hair types. Guests appreciate its lightweight formula that doesn't leave hair feeling greasy, along with its pleasant scent. Many find it beneficial for maintaining soft and manageable hair, even in challenging weather conditions. However, some guests have expressed concerns about recent formula changes and the effectiveness for specific hair types.
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 501 reviews
quality: 4.52 out of 5
value: 4.6 out of 5
83% would recommend
77 recommendations
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 - 3 days 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 - 7 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.
5 out of 5 stars
Thumbs up graphic, would recommend
18 March, 2025Verified purchase
Love this!!!
I love this product! Makes my hair feel healthy and look shiny.
5 out of 5 stars
24 February, 2025
originally posted on influenster.com

Frizz-free, shiny hair!
This serum smooths hair, controls flyaways, and adds shine without feeling greasy. It works well in humid conditions and keeps hair soft and manageable. Overall, it’s a good choice for frizz-free, shiny hair.
2 out of 5 stars
Thumbs down graphic, would not recommend
11 February, 2025Verified purchase
Pass!
Made my hair feel heavy and weighed down.
1 reply from Tresemme Expert team - 11 months ago
We apologize for any inconvenience you experienced with our Styling Aid Keratin Smooth Serum. Your satisfaction is important to us. Please connect with our Consumer Services team at consumer.services@unilever.com with your contact details and the ref id: 50126685 so we can address your concerns promptly.
5 out of 5 stars
13 January, 2025
originally posted on influenster.com

enhances hair health by providing shine and smooth
This product effectively enhances hair health by providing shine and smoothness, particularly beneficial during colder weather conditions. Additionally, it leaves a pleasant scent in the hair, making it a great choice for those seeking both functionality and fragrance in their hair care routine.
4 out of 5 stars
Thumbs up graphic, would recommend
2 December, 2024Verified purchase
Great product
I like that it’s not heavy and doesn’t feel oily. I only wash my hair once a week and this helps keep it soft.
4 out of 5 stars
Thumbs up graphic, would recommend
4 November, 2024Verified purchase
Professional results.
My hair is thick-thick, 4a. Use only a dime size. The result smooth fluffy silk press.
5 out of 5 stars
27 October, 2024
originally posted on influenster.com

Good for treatment hait product
I like it so much, i dont like heavy feeling on my hair after apply oil on hair, but when i try it , it anzing the texture very lightweight. After use it,i dont feel anything, the scent is good too
5 out of 5 stars
Thumbs up graphic, would recommend
28 September, 2024Verified purchase
Truly a miracle product!!!
I have very dry, frizzy hair and I put this on dry hair, from the middle to the ends. Very lightweight and not greasy at all ! I used it for 3 days in a row and no build up or dirty-looking hair at all!!! I can go a good 6 days before I have to wash my hair. This product is just absolutely amazing. It stayed fresh and clean and it really did look so much better and healthier and much less frizz and dryness!! If it works for me, trust me, it will for everyone!!!
5 out of 5 stars
Thumbs up graphic, would recommend
11 September, 2024Verified purchase
SMELLS GREAT
Wow, this smells great. The design is different from the pervious one but it works the same. My hair stays soft and smelling great. I have oily hair but this helps control it.
3 out of 5 stars
Thumbs down graphic, would not recommend
15 July, 2024Verified purchase
No longer has Marula Oil!
Beware—No longer has Marula oil! Product has changed. Not sure if I will like it, anymore, since ingredients changed. They removed the marula oil, although product had same UPC and same size.
1 reply from Tresemme Expert team - 2 years ago
We truly appreciate you taking the time to share your feedback about our Keratin Smoothing Serum. There was a package change in 2021 however our formulation hasn't changed, and we're sorry to learn that you're no longer happy with it. The quality of our products are very important to us, and we'd like to ask a few questions - could you please email our team at consumer.services@unilever.com and share ref ID: 48066071. We'll be waiting for your email!
5 out of 5 stars
11 July, 2024
originally posted on influenster.com

If you want soft hair.. this is a must!!
This is a must have if you have dry hair! My hair has never looked shinier or felt soft after using any other product! It makes my hair smell and look freshly washed. I will be repurchasing this!!
5 out of 5 stars
Thumbs up graphic, would recommend
29 June, 2024Verified purchase
Awesome find, watched commericsl and gave product a try
Not heavy on hair, small amount goes a long way, hair feels soft and manageable.