Take Hydration to the Next Level

Hydra-Therapy Boost Serum

In stock

This revolutionary oil-serum hybrid takes hydration to the next level. Micro-droplets of oil – infused with two powerful actives – are suspended in a hydra-gel to protect their purity and potency until they touch your skin.

1.0 oz

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What It's Formulated Without
Phthalates, Parabens, Petrolatum and Mineral Oil

Water (Aqua/Eau), Glycerin, Isononyl Isononanoate, Betaine, Pentylene Glycol, Caprylic/Capric Triglyceride, Carbomer, Sodium Hydroxide, Crithmum Maritimum Extract, Disodium Edta, Amodimethicone, Orbignya Oleifera Seed Oil, Phenoxyethanol, Parfum (Fragrance).
Please be aware that ingredient lists may change or vary from time to time. Please refer to the ingredient list on the product package you receive for the most up to date list of ingredients.

Hydra-Therapy Boost Serum



As the gel dissolves in a refreshing veil of moisture, the oil droplets go to work, delivering vital nutrients and leaving skin its most hydrated, nourished and radiant.


Orbignya Oleifera Seed Oil

Is a rich source of fatty acids and lipids that helps hydrate and plump the skin while attracting and retaining moisture.

Crithmum Maritimum Extract

Among the heartiest plants in nature, lends its unique powers of self preservation to skin by helping rebuild the natural moisture barrier.


A natural moisture magnet, to attract and hold hydration for a glowing complexion.


How to use it

How to use it

  1. After cleansing, toning and before moisturizer, smooth over face and neck.
  2. Use morning and night.
  3. Avoid eye area.
Rated 5 out of 5 by from Best hydrating serum I have been using the Hydra Therapy Boost Serum for a short time only, but I am amaized by what it has already done for my skin. I live in Texas and the summer heat really dries my skin, but with this serum I have been able to combat that. I have been using it every morning after washing my face. Just one pump goes a long way with this one. It absorbs well and leaves my skin feeling hydrated and well moisturized. It also has a wonderful light floral scent that I really like. If you are looking for a great hydrating Serum that works wonders than this is the product for you.
Date published: 2018-07-18
Rated 5 out of 5 by from Quick and easy step to hydration and silkiness I use this after my E.L. cleanse rountine in the morning. I have attached a photo of the two pumps you are to apply to the face and neck. I have dry skin that is sensitive and have had no issues with this product. When you first put in on it is wet but upon absorption it is smooth, non greasy and really skin softening. It definitely hydrates my skin. I currently do not use a moisturizer after use as it does the job for me and I use an spf foundation. I do use primer on top for full make up and have had no separation or greasiness. I can use just a dust of powder over it for home. I have gotten compliments from my mom and my facialist since wearing this saying my skin looked beautiful. I was sent this product for my honest review and have really liked it. This would be a product I would consider repurchasing as it is easy to use, I like the results I see and light simple packaging.
Date published: 2018-07-20
Rated 5 out of 5 by from Light, non greasy, doesn't take much. I've been using this Hydrotherapy Boost Serum religiously for several weeks. It's very light and glides on smoothly. A little goes a long way. It's non greasy. Leaves your skin hydrated yet leaves no residue. A very slight scent which for me was a huge winner. Makeup glides on smoothly and effortlessly over the serum. Perfect for oily skin. Has lessened redness in my face over the small amount of time I've been using the product. Consistency of a light gel.
Date published: 2018-07-20
Rated 3 out of 5 by from A boost for sure ! This product being new to me, the packaging is beautiful looking. Packaging felt high end. I washed and toned my face did I feel a instant change? No but ad the days have gone on the appearance of my face has brightened and looked less dull , I feel like I'm looking at a younger version of my self. The product isn't a instant thing I guess we could say the first day I was left wondering by tbe 3rd day my skin felt hydrated and looked so much more youthful. Which was almost shocking to look so bright and healthy when I have not seen that before this product. I will say this is not a quick fix but with time (3 days for me ) it does brighten and moisturize .
Date published: 2018-07-20
Rated 5 out of 5 by from Awesome Stuff!!!!! I received Erno Laszlo Hydra-Therapy Boost Serum for Free in return for my honest review. I applied a small amount of Hydra-Therapy Boost Serum to my face & neck & noticed right away how quickly it absorbed into my skin. I then began to apply my face primer & liquid foundation. All throughout the day I had no shine & my skin stay moisturized & soft. I am in love with the floral smell and kept smelling it on my face all day. I am very happy i received this as a Free Sample & to experience results in just one use! My skin really feels smoother in texture. Being in the sun a lot & applying Erno Laszlo Hydra-Therapy Boost Serum before & after sun exposure has really kept my skin from looking leather like. I highly recommend this product to every female that has the dream to have beautiful smooth skin!
Date published: 2018-07-16
Rated 5 out of 5 by from My #1 beauty essential This Hydra-Therapy Boost Serum was the best serum I have ever used. After using this product for at least two weeks my skin feels soft and hydrated. I have been using just this product without even a moisturizer and my skin still feels soft and bright. A little goes a long way when it comes to this product, just a pea sized amount would be enough for your entire face and neck area. I have even received compliments from friends and family about the way my skin looks after using this product.Even though I used this product during the summer months I feel that this product would even be useful during the driest winter months. I had never used a Erno Laszlo product before but now I am hooked and would definitely buy this product again.
Date published: 2018-08-01
Rated 4 out of 5 by from Innovative I enjoy this serum as there is no scent.My face looks replenished and refreshed.It did not break out my skin and was easy to apply.I dabbed a small amount on my face in the morning after cleansing.Helped protect my skin from dryness throughout the day.I would repurchase!
Date published: 2018-07-24
Rated 5 out of 5 by from Silky smooth skin I love the way this serum feels on my skin. My skin feels so soft and smooth after applying. This serum makes my skin feel very hydrated. My skin gets very dry in the summer and nothing seems to give it back its moisture, until I found this. My skin seems to easily absorb this serum, which makes it very hydrated and look so smooth and stunning.
Date published: 2018-07-18
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Can this be used under another serum like Timeless or is that overkill?

Asked by: Manika
Yes, you can use up to two serums at a time. As this one is very weightless and sinks right in, we recommend using it first, and then the Timeless over it, as it is heavier.
Answered by: EL Advisor
Date published: 2020-01-27

I’m 58. Is this something for mature skin? 

Asked by: Deb61
This product can be used with all skin types, but it's main result is hydration, and it does not have any anti-aging benefits. If you would prefer anti-aging serums, you could use the Timeless, Firmarine, or Transphuse lines.
Answered by: EL Advisor
Date published: 2019-05-06

Hi I have very sensitive skin, would this be OK, I use the products for sensitive skin, thanks Diane

Asked by: Tito
Yes. This product is very gentle and very soothing to the skin:-)
Answered by: JoAnne
Date published: 2019-01-31

What is the active ingredient in this product?

Asked by: Sher
• Papyrus Vegetable Sap, from the African water plant, is a complete hydration system in nature, and on skin: attracting, retaining and protecting moisture. • Sea Fennel, among the heartiest plants in nature, lends its unique powers of self-preservation to skin by helping rebuild the natural moisture barrier • Shea Butter is an age-old hydration fix for dry skin, but also supports skin’s own renewal process, helping restore and firm as it smooths, softens and nourishes.
Answered by: EL Advisor
Date published: 2019-02-10

What is the height of the bottle?

Asked by: Anne627
I’m out of the serum at the moment, but I believe the bottle is approximately 16.5 cm or 6.25 inches in height. 
Answered by: Franca
Date published: 2018-11-25

Do you all know when this will be available at Nordstrom?

Asked by: Erick
Stock is available now for the Boost Serum at Nordstrom on Michigan Ave in Chicago.
Answered by: EL Advisor
Date published: 2018-07-11

I this designed for a specific skin type? I have been a 1:00 (on the old system)

Asked by: Marj212
The Boost Serum is great for all skin types. It is ideal for dry skin in need of hydration, but it is also a great alternative to a full moisturizer for more oily skin types. We suggest trying the Boost Serum as a substitute for a PM moisturizer, which may be heavier then you need.
Answered by: EL Advisor
Date published: 2018-11-25

Is this product non-comedogenic?

Asked by: Whoami
Yes, our new Boost Serum is non-comedogenic.
Answered by: EL Advisor
Date published: 2018-10-17
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