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Summary
Conscious Beauty at Ulta Beauty™
- Cruelty Free
- Sustainable Packaging Brand
- Give Back
Created for all hair types, Kristin Ess Hair's Weightless Shine Working Serum - Frizz Taming + Hair Smoothing tames frizz, locks in moisture, instantly smooths + illuminates strands.
Benefits
- Can be used on wet or dry hair
- Cuticle smoothing + frizz taming
- Adds instant shine
- Moisture locking
- Super versatile and can be used when blow drying hair, creating sleek hairstyles, cocktailed with pomade for texture + shine, to Zip-Up dry ends or simply to air dry
- For all hair types
- Contains Zip-Up Technology: Proprietary strengthening complex designed to "zip-up" split ends while targeting weak areas of the hair, smoothing the appearance of damaged cuticles, and helping protect hair from environmental stressors + color fade
- Cruelty Free
- Color + Keratin Safe
- Vegan
Formulated Without
- Parabens
- Phthalates
- Sulfates
Apply a pea-sized amount between your palms and rub them together. Work into towel dried hair, focusing on the ends. Blow dry or air dry as desired.
Cyclotetrasiloxane, Cyclopentasiloxane, Dimethiconol, Fragrance (Parfum), Water (Aqua/Eau), Cetearamidoethyldiethonium Succinoyl Hydrolyzed Pea Protein, Hypnea Musciformis Extract, Glycerin, Sargassum Filipendula Extract, Sorbitol, Caprylic/Capric Triglyceride, Chamomilla Recutita (Matricaria) Flower Extract, Helianthus Annuus (Sunflower) Seed Oil, Mangifera Indica (Mango) Seed Butter, Persea Gratissima (Avocado) Oil, Ricinus Communis (Castor) Seed Oil, Coco-Glucoside, Gelidiella Acerosa Extract, Argania Spinosa Kernel Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Tetrahexyldecyl Ascorbate, Coffea Arabica (Coffee) Seed Oil, Bisabolol, Phenoxyethanol, Tocopherol, Algin, Carrageenan, Chitosan, Guar Hydroxypropyltrimonium Chloride, Sorbitan Oleate, Xanthan Gum, Glycine Soja (Soybean) Oil, Ethylhexylglycerin, Zingiber Officinale (Ginger) Root Extract
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Questions
Ask a QuestionQ&A
Showing 2 out of 2 Questions
- Q
Does this have a heat protectant ability?
- Asked by justjackie
- Official Answer By Kristin Ess Hair - Brand EngageHi there! The Weightless Shine Working Serum does not provide heat protection. We recommend using alongside our Blow Dry Mist for heat protection.Was this answer helpful to you
- Q
Can I use this after or before the Kristen Ess Ultra Light Curl Definiting Cream? Or should I only use one product or the other, not both?
- Asked by Ash
- Official Answer By Kristin Ess Hair - Brand EngageHi there! You can use both products, we recommend using the Working Serum after the Curl Defining Cream. Hope that helps!Was this answer helpful to you
Reviews
Write A REVIEWReview Snapshot
by PowerReviews
Ratings Distribution
Hair Type
- 6Straight Hair
- 2Wavy Hair
Most Helpful Positive Review
Pretty Good
This is a pretty nice serum. The formula is fairly thin and not at all sticky. It can look a bit oily on the hair if you use too much, but that's easy to avoid once you play around with it. I did feel like it added a little shine to my hair, and it definitely made it feel softer and encouraged my cu...
Most Helpful Critical Review
Not for me
I paid for this product with my own money. I have chemically relaxed hair and wanted to find a product that would protect my long, relaxed ends. I was especially interested in this product because it contains chitosan, a marine ingredient that brought me consistently good results in past hair, skinc...
130 results
I love it
Hair Type Wavy Hair
Fast delivery
love and recommend
I have been rockin' pretty short hair for a couple years now and this stuff is my go too. I use the Kristen Ess thermal protection products first (the blow out one for if I blow dry my hair straight, the thermal spray for if I use a hair straightner), and they both work well. Then I use about a quarter size amount of this product, as I have very dry hair, to add some softness and shine and last I use a hair wax to add some volume. I really do recommend this product. I've used more expensive hair oils (like the Verb ghost oil and the OUAI hair oil) and I like it the same or better. I'd say the ghost oil by Verb is VERY similar and the Ouai oil is thinner. I absolutely recommend this product. If you have regular or more oily hair, perhaps start off with a little less product than I use (as I said my hair is dry)!
My new go to for frizzy hair
Hair Type Straight Hair
This serum smells so good! It flattens all the frizzy hairs. I am switching to this product for sure.
Very lightweight
I loved this product. It was great to apply last on dry hair to get any of the crunchy product feel out from locking in waves/curls
Not for me
Verified Reviewer
Reviewed at

I paid for this product with my own money. I have chemically relaxed hair and wanted to find a product that would protect my long, relaxed ends. I was especially interested in this product because it contains chitosan, a marine ingredient that brought me consistently good results in past hair, skincare, and oral formulations. Simply put, this serum felt crunchy. I don't like to waste things, so I cocktailed it a drop of castor oil and smoothed it into my damp hair. The end result was passable, so I will continue to use it in this way until I finish the bottle. I will not repurchase.