Hydrating Face Serum

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This advanced complex is designed to pull essential moisture in deep and lock it there. Quench Hydrating Face Serum is formulated to create a gorgeous, dewy complexion that’s silky soft and satiny smooth. Turn back time with a powerful combination of age-defense ingredients.

  • HSC Complex is designed to deliver intense hydration, while counteracting environmental stressors.
  • An intense form of Vitamin A helps to promote healthier-looking skin and return skin to its youthful appearance by boosting the skin renewal process.
  • Lipids—the key to younger-looking skin—are included to help improve elasticity and firmness. 
  • Available in a 2 oz. luxury size for $98 ($32 savings).

How to Use

AM and PM. Use twice a day. Apply 1-2 pumps to a clean, dry face and neck. Allow serum to absorb into skin before applying other products.


Cyclopentasiloxane, Dimethicone, Dimethiconol, Ethylhexyl Stearate, Cyclomethicone, Phenyl Trimethicone, Ethylhexyl Cocoate, Caprylic/Capric Triglyceride, Water/Aqua/Eau, Retinol, Sodium Ascorbate, Tocopherol, Lecithin, Glycolipids, Sodium Hyaluronate, Caprylyl Glycol
Great Serum
This was my first KS product! I used it with Age Arrest. This serum is so addicting because it feels like a drink of water to the skin. I have very dry skin so I would apply a layer of this and then add some to my cream. This is also good to add to makeup for a glow
(Posted on 12/15/14) Review by Kris
Hydrating and Healing
I used the sample of this product and went back for more! It is amazing. I can't believe how quickly it replenishes the skin. I would absolutely recommend it and it is really moisturizing but not in an oily way. Great product that I will definitely be buying again!
(Posted on 12/14/14) Review by Emily
The difference is incredible!
I have always had difficulty finding products that work for my sensitive skin, which is prone to dryness AND oiliness, resulting in a lot of breakouts especially during my monthly cycle. Worse, I have very pale coloring, so every bit of redness or scarring is glaringly obvious, making me want to pile on the foundation (irritating my skin even further). A few months ago, I finally got fed up enough that I was willing to spend the money to establish a completely new skincare regimen. I went with Kate products based on the recommendations I got at a specialty cosmetics/skincare boutique. I left feeling extremely guilty about the amount of money I had spent, and doubtful that this was going to make any difference for me. I decided to introduce one product at a time into my regimen in case I decided to return some items. I started out by using a small pump of the Quench serum each night. Literally within DAYS of starting to use this product, the dry patches on my face disappeared (i'm talking about areas that had been dry and peeling for the better part of a year), the reddish areas from past breakouts had faded, and my face was visibly more smooth and evenly-toned. As I introduced other Kate products (the goat milk moisturizer in the morning, and exfoliate gentle 2-3 times a week), my skin continued to improve. Now, I have actually been comfortable enough to occasionally go out in public with no makeup at all -- something I haven't been able to do since I was 14 years old! While this is really a result of the combination of Kate products I've been using, if I had to choose just one product to recommend to anyone, it would be the Quench serum hands down.
(Posted on 11/23/14) Review by Katie
Glow Glow Glow
The name of this product suits it perfectly. I love the glow it gives, the dewy look, the hydration. The lipids plump skin up nicely. I love Kate's advice to use it on arms and legs for a dewy sheen, but I think its a little pricey to be slathering on areas larger than my face--though I would love to!
(Posted on 9/24/14) Review by Molly
Can't live without
I found this product a couple years ago and could not be happier. It's perfect for my dry winter skin but not too oily on those hot summer days.
(Posted on 9/3/14) Review by Hillary