Rated 4.35 out of 5 stars
Most Helpful Positive Review Holy Grail!!
I rarely write reviews for products but I love this so much that I honestly recommend for everyone to try it. I cannot live without this!!! (PLEASE DON'T EVER STOP SELLING IT) This is the first product that I have been able to use on wet OR dry hair. It works amazing both ways and leaves my hair silky smooth. Not greasy at all, like many other products do. I tell all my friends about it and I think it's a great price for how awesome this product is! I always had frizzy hair and seriously this is the only thing that has helped! Anyway just TRY IT, you wont regret it :)
Most Helpful Critical Review Spend the money to buy a useful product
I have naturally loose curly / wavy hair. I bought this product so I could compare store brands against salon brands. It does absolutely nothing for my hair. No smell to it (which I kind of prefer), but no extra shine or frizz control. Stick to the salon brands.
Reviewed by 106 customers Breakage
Mal from NC
Definitely helped with the humidity, but unfortunately cause my hair to start breaking off.
Jenn from Florida
Makes hair nice and soft doesnt make it feel oily but i do think if you use to much it could nice probably
2 year customer
Bri from Houston, TX
I have been using Tresemme Kertain serum for 2 years now and I can't live without it. My hair is very thin and takes ages to grow, unfortunately that is a genetic issue with the ladies in my family; however, this serum has not only strengthened the ends of my hair but I've also seen tremendous growth. This is my miracle in a bottle and I use 2 pumps on the ends of my hair after every shower.
Great for the price
Viv from California
I was looking for a cheaper alternative to replace my Paul Mitchell's smoothing serum and I heard this was a great dupe. The smell is delicate and lasts a while on me. For the price, it's a really great product. It's kept my hair smooth and silky. I have naturally straight/thin hair though so I don't know how it'll work for curly or coarse hair. Unfortunately, I saw in one of the reviews that Tresemme isn't a cruelty free company so I most likely won't purchase this again.
Bre from California
I have long thick hair. This makes my hair so silky soft without feeling oily or heavy. It also smells amazing! Much better than other more expensive products that I have used in the past. I highly recommend!
Tanni from Jamaica New York
Overall good serum after use it my hair is so soft silky .and smail so nice .and very reasonable
Pretty good dupe
CW from USA
I'd say this a pretty good Paul Mitchell super skinny serum dupe. The PM smells way better and is a little
Lighter but for the price I can't complain. This seems to make my hair get greasier faster so I try to not use a lot. It does make my hair super smooth, soft, and shiny. Just not 100% sold on the smell and the greasiness.
Chris from The Villages
Not totally sold on this product
Liz from Phoenix
Makes my hair soft and smooth. Is not heavy at all. I dislike argan oil when it comes to hair oils and treatments and this is a fantastic alternative.
Shop from Fargo
Nice lightweight non greasy product
I would but this again
Yaya from Dallas, Tx
This product is AMAZING! My hair got super smooth the next day after my first used. I live it.
Char from Corona ca
Fantastic and smells sooo good
Lisa from Moss Point, MS
This stuff keeps the frizzy out of my hair and smells incredible.
THIS. SMELLS. SO. GOOD.
Angela from Columbus, OH
I know this is bad but I would probably still use this product even if it didn't help my hair. It just smells so nice. I will however, have to probably continue buying my IGK Hair Serum because this isn't cruelty free. But up to the user especially since there is a price difference.
Becca from massachusetts
To be clear: this does nothing for the health of your hair. like most hair serums/oils, it's a product based on some form of silicone, which makes your hair look and feel shiny and smooth, and some stuff to get the consistency and scent they want. That being said, this one is way cheaper than most hair serums, it smells nice, and it does its job. It's lightweight, it doesn't feel sticky or oily or wet going on, and it makes your hair look shinier. I like to put a bit on my dry hair when it's been a hot sec since i conditioned, or after i brush out a wet set to get the frizz to chill out.
Wess from California
I have a long, really dry and damaged hair. I've bought different conditioners and hair mask to help my hair, I even cut my hair short because I got so annoyed with my hair. However, 2 months ago I bought this on a whim and it def changed my life (lmao)!!! My hair is so smooth and shiny now!
I use it after I shower, on my damp hair before I comb it.
Thriftygrrl from HVNY
I'm mixed (African American and Puerto Rican) and I have SUPER CURLY/COILY hair. This serum is MAGIC when I flat iron my hair. Minimal flyaways and frizz. Please never discontinue, I love it!!!!!
Mariah from NM
If you need to tame your frizzy hair, seriously buy this!! Before I came across this product I had been trying to invest in expensive "anti-frizz" products that did absolutely nothing to my hair... and they also smelt horrible. I decided to give this product a shot even though I was skeptical because of how affordable it is... and let me tell you, and I never use anything else to tame my frizzy hair now! I can't believe I was spending $30+ EACH on expensive shampoos, conditioners, and serums. I'm so glad I found this product. Ever since I've been using it my hair looks absolutely beautiful and has really boosted my compliments. Not to mention it smells AMAZING. BUY THIS!
***NOTE: I found that this product works best when it's paired with the TRESEMME Keratin Smooth shampoo and conditioner, which are also very affordable!
No kidding, my hair looks 20 years younger
Dee Jay from South Padre Island, TX
I'm in my mid-50s, a sun worshipper, and last year I decided to stop coloring my hair and let the gray grow out. The problem is that the gray was wiry and frizzy. Enter Tresemme Keratin products. I bought the shampoo, conditioner, serum, and heat protect spray and a miracle occurred. My hair is healthy looking, shiny, swings around like I'm a kid again. It took 5 mins to blow it dry straight and it looked like my stylist did it, and stayed that way through the humidity of south Texas.
I highly recommend these products for aging hair.
Fine Wavy Hair's Friend
Amelia from Wisconsin
Smells amazing, cuts frizz in half, calms split ends (not a mender, just smoothes them) and it gives shine without weighing hair down.
Has replaced my Paul Mitchell Skinny serum.
I would buy this product again
LindaML from San Antonio
It smells awesome n it helps tame my hair from frizz. Its smooth and makes my hair look healthy.
I would like to by this product again I love it
tabthao from 01453
Love it smell so good make my hair so sooth I love it.
Body & Shine
CeCe from Chicago, IL
Amazing serum that gives fine limp hair shine and loads of volume when blown dry . Use with the matching shampoo for best results and omit conditioner if you have fine hair.
I really wanted to spray on hair but the serum is just to thick for the spray. I hate mixing on my hands but the results are worth the effort.
Not for me
Feporras from Chicago
I have really curly hair that gets very tangled and this just made my hair feel really dry . Idk if I'm using this product wrong or anything but I just saw this product making my hair tangled and frizzy
Liz from Houston, TX
My hair is bleached from numerous balayages and I'm in nursing school so I can't really straighten or curl it all the time. It's usually in a bun or pony but you can tell it's super dry when it's up or down. I was tired of my Silk Infusion so I got this bottle. I figured it's so cheap if I hate it then oh well. Well I LOVE it. Completely transformed my hair. I used it wet and dry!! It smells AMAZING! I love it so much I'm going to buy more. And yes, it does make your hair shiny and smooth. But I used so many pumps... not the recommended 1 pump lol