Kristin Ess Weightless Shine Working Hair Serum - Frizz Taming, Smoothing, Moisture Locking - 1.7 fl oz
$14.99
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$6.99 - $12.99
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4.4 out of 5 stars with 879 ratings
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The Kristin Ess Weightless Shine Working Serum is a versatile hair product that enhances shine and softness without weighing hair down. Guests appreciate its lightweight formula, pleasant scent, and effectiveness in taming frizz and flyaways. Many find it suitable for both damp and dry hair, making it a go-to for achieving polished hairstyles. While some guests experienced mixed results, the overall consensus highlights its ability to improve hair texture and manageability.
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 396 reviews
effectiveness: 4.3 out of 5
quality: 4.3 out of 5
value: 4.25 out of 5
80% would recommend
97 recommendations
5 out of 5 stars
Thumbs up graphic, would recommend
12 October, 2025Verified purchase
Beats premium brands
Do not let the price fool you. The price of this product caught my attention and decided to try it. I have frizzy hair and let me tell you, this product more than delivered. It actually tames my frizzy hair! I walk out into the drizzly and humid weather and my hair still stays smooth. This beats all my other more expensive well known brands. Plus it smells great!
5 out of 5 stars
22 September, 2025Verified purchase
Smells heavenly!
Bought to break gel cast while taming frizz, which it does very well. But I am most impressed with the smell! It’s so nice and sophisticated.
5 out of 5 stars
Thumbs up graphic, would recommend
15 August, 2025Verified purchase
Great for frizzy hair
I like how I can put it in my dry curls and it will take away the frizz.
5 out of 5 stars
7 August, 2025
originally posted on influenster.com

Worth every cent
The Kristin Ess Working Serum is that girl. Super lightweight, non-greasy, and gives my hair the perfect amount of shine and smoothness without making it feel heavy. I use it on damp or dry hair and it tames flyaways instantly. Plus, the scent is subtle but so good.
5 out of 5 stars
7 August, 2025
originally posted on influenster.com

Natural Shine!
I've been using the Kristin Ess serum on my damp hair, and I've really noticed a big difference—it controls frizz, leaves my hair softer, more manageable, and with a natural shine, without feeling greasy or heavy. It has a lightweight texture that applies easily, a clean and pleasant scent, and comes in a practical bottle with a pump. I like that it's formulated without sulfates or parabens and includes ingredients that protect color and smooth split ends. It's a very effective product if you're looking for something lightweight that visibly improves hair texture
5 out of 5 stars
31 July, 2025
originally posted on influenster.com

Great lightweight serum!
I love how this serum smooths frizz without weighing my hair down. It gives my ends a polished, healthy look and adds shine without any greasy feel. The scent is light and pleasant, not overpowering. I use it on damp and dry hair — works great both ways! A little goes a long way, so the bottle lasts. Definitely a staple in my routine now.
5 out of 5 stars
11 July, 2025
originally posted on influenster.com

KRISTEN ESS SERUM
Kristin Ess Working Serum is one of those products that just makes your hair do what you need it to do. I usually use it on dry hair after styling to smooth everything out, tame frizz, and add a soft, natural shine without that heavy, greasy feel. It’s super lightweight and gives your hair a polished look.
5 out of 5 stars
Thumbs up graphic, would recommend
19 June, 2025Verified purchase
Nice Scent, Works Great
I am sensitive to strong scents. The smell of this product isn't overpowering to me. It smells nice and it works very well. It immediately helps to decrease frizz with only a small amount of product required.
4 out of 5 stars
Thumbs up graphic, would recommend
23 May, 2025Verified purchase
THE SMELLLLLLL ❣️❣️❣️
I didn't realize when purchasing that this is primarily meant for use on wet hair, but that's on me! Regardless, I absolutely love the smell of this line of Kristin Ess products! It's subtle, earthy, a little masculine, & very sexy. I haven't had a chance to use it much on wet hair as of yet but the instructions advise use as a touch up on dry hair when needed, and for this use it has been reliable and effective and slicking away flyaways and providing shine. I would say the density of the oil is light to medium for those who may be more familiar with a weightless Keratin hair oil.
5 out of 5 stars
Thumbs up graphic, would recommend
28 April, 2025Verified purchase
Provides a nice shine!
This serum is lightweight, non greasy, and does exactly what it says, it's actually working on your hair strands to provide nourished, moisturized hair w/shine!
5 out of 5 stars
8 April, 2025
originally posted on influenster.com

Hair still soft smooth and frizz free 2 washes lat
THIS HAIR SERUM IS THE BEST IVE USED! It smells so so good and one use on damp hair makes my wavy frizzy hair tamed and incredibly soft. By one use my hair was smooth shiny and soft 2 washes later. I will continue to use this as long as possible. A little goes a long way!!
4 out of 5 stars
Thumbs up graphic, would recommend
6 April, 2025Verified purchase
Smells divine and a little goes a long way.
This hair serum smells divine and only takes a small amount to do a big job! Hair serums are usually too oily and weigh my hair down but this one does not. I definitely recommend!
5 out of 5 stars
18 March, 2025
originally posted on influenster.com

One of my go-to hair serums!
This is one of my go-to hair serums! I love how it makes my hair feel silky smooth without weighing it down or making it feel/look greasy. I love the way it smells too :)
5 out of 5 stars
Thumbs up graphic, would recommend
5 March, 2025
Great when paired with key products
I really like this serum, but I think the key is pairing it with a few key products depending on how you plan on styling your hair. I have 2B/2C hair, which I occasionally will have keratin treated just for extra convenience. When I use this serum in conjunction with my other heat protecting products, I can get a really flat, straight style that lasts even sleeping on after letting my hair naturally air dry and then flat ironing the next day. I also like using this product when not doing an at home blowout. I think it seals the cuticle well!
1 out of 5 stars
Thumbs down graphic, would not recommend
27 February, 2025Verified purchase
Not working for me
Doesn’t work and I’ve never had that happen with a hair serum. I’m very surprised as this hasn’t ever happened with any serum, it actually seems to increase frizz 😭
2 out of 5 stars
Thumbs down graphic, would not recommend
4 February, 2025Verified purchase
Doesn't do much
I bought this because I like the brand and it's a good value, but it doesn't really do anything to my hair. At least it didn't make it worse....
5 out of 5 stars
17 December, 2024
originally posted on influenster.com

Improved my hair’s shine and softness
I recently added the Kristin Ess Weightless Shine Working Serum to my hair care routine, and I’m thrilled with the results. This lightweight serum has noticeably improved my hair’s shine and softness without weighing it down. I apply it to damp hair before blow-drying and to dry hair to control frizz and add luminosity. Its versatile formula helps me achieve polished hairstyles, and its subtle fragrance is a nice bonus. It has quickly become an essential for keeping my hair smooth, healthy, and radiant.
4 out of 5 stars
Thumbs up graphic, would recommend
29 October, 2024Verified purchase
Shine to Dull Hair
Helps with dry ends and fly aways.
5 out of 5 stars
Thumbs up graphic, would recommend
3 October, 2024Verified purchase
Love this!
Lightweight and smells amazing!
5 out of 5 stars
Thumbs up graphic, would recommend
17 September, 2024Verified purchase
It's so good
I have kind of thin and really dry hair. Especially as I've got older my hair has been drier then ever. This serum works so well! Never makes my hair greasy. I use a lot more than a pea size amount on damp hair before I blow dry and I use it when it's dry, too, makes my hair soft and shiny. Expensive but so worth it.