e.l.f. Cosmetics Hydrating Booster Drops Review

e.l.f. Cosmetics Hydrating Booster Drops
5.0
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
Ingredients

e.l.f. Cosmetics Hydrating Booster Drops Ingredients

Hover to see details. On mobile? Tap for ingredient stories!

Full Ingredient List (INCI):

Water, Butylene Glycol, Glycerin, Pentylene Glycol, Propylene Glycol, Hydrolyzed Sodium Hyaluronate, Chondrus Crispus Extract, Tremella Fuciformis Sporocarp Extract, Sodium Hyaluronate Crosspolymer, Tocopheryl Acetate, Phenoxyethanol, Hexylene Glycol, Tromethamine, Carbomer, Xanthan Gum, PPG-26-Buteth-26, Caprylyl Glycol, Ethylhexylglycerin, PEG-40 Hydrogenated Castor Oil, Fructose, Disodium EDTA, Glucose, Dextrin, Urea, Sucrose, Glutamic Acid, Aspartic Acid, Hexyl Nicotinate, Alanine
Review

Does e.l.f. Cosmetics Hydrating Booster Drops Work?

 
According to CreamScan's analysis of the ingredient list, here’s what e.l.f. Cosmetics Hydrating Booster Drops has to offer:
 
✅ Strong humectant moisturizing. This lightweight, humectant-rich product, ideal for oily skin, has a moisturizing rating of 5.0 out of 10.

  

Key Benefits of e.l.f. Cosmetics Hydrating Booster Drops

 
These are the key benefits you can expect from using e.l.f. Cosmetics Hydrating Booster Drops:
 

🔵 Lightweight Purely Humectant Moisturizing, Ideal for Oily Skin

According to CreamScan analysis, e.l.f. Cosmetics Hydrating Booster Drops is quite moisturizing, with a moisturizing rating of 5.0 out of 10.

Is it more humectant or occlusive? It is purely humectant. It has zero occlusivity (we didn't find any occlusive ingredients on the ingredient list) and a maximum humectancy of 10 out of 10, primarily due to the high content of Butylene Glycol (est. ≈6.0%), Glycerin (est. ≈4.0%) and Pentylene Glycol (est. ≈3.0%).

This humectant-rich product, when used alone as a moisturizer, is ideal for oily skin, providing significant hydration in a lightweight, fast-absorbing formula without any occlusive ingredients.

📌 Certain studies suggest that humectants alone may not effectively moisturize the skin. If you use this product as your only moisturizer, we recommend following it with one that contains at least some occlusive ingredients.

💧 A Humectant Boost for Any Skincare Routine

But it’s not limited to oily skin - such a humectant boost will also positively contribute to the moisturizing efficacy of any skincare routine when used as a step before applying the main moisturizer. This type of formulation is typically used in serums, where a light, fast-absorbing texture is key.

Please refer to the Ratings section below for details of the moisturizing rating calculation.

📌 Please note that this is not a complete list of benefits. We are in the process of enhancing our model to incorporate anti-pigmentation, exfoliation and anti-acne ratings.

Things to Be Aware Of: e.l.f. Cosmetics Hydrating Booster Drops

 
CreamScan identified a few things to consider before adding e.l.f. Cosmetics Hydrating Booster Drops to your skincare routine:
 

⚠️ If It’s Your Only Moisturizer, It Needs to Be Paired with Some Occlusives

While humectants are highly effective at attracting water to the skin, studies (J. N. Kraft, C. W. Lynde) suggest they may not be efficient when used alone.

One major drawback of purely humectant moisturization is that the water attracted by humectants to the upper layers of the skin can evaporate completely into the environment through transepidermal water loss (TEWL). Adding occlusive ingredients helps seal this moisture into the skin and prevent further water loss.

If you’re using e.l.f. Cosmetics Hydrating Booster Drops as your only moisturizer, consider pairing it with one that contains at least some occlusive ingredients, such as oils, butters, or silicones. These work alongside humectants to create a protective barrier, locking in hydration and ensuring longer-lasting moisturization. The amount of occlusive needed depends on your skin type - the drier the skin, the more occlusives it requires.

If this product is used not as a standalone moisturizer but as part of your skincare routine, such as a toner or serum, it should be applied before your main moisturizer (unless it's a sunscreen), which will provide the necessary occlusivity on top of it.

Pros & Cons of e.l.f. Cosmetics Hydrating Booster Drops

 
Here’s an overview of the pros and cons of e.l.f. Cosmetics Hydrating Booster Drops to help you decide if it’s the right choice for your skincare routine:
 

🟩 Pros:

✅ When used alone: Provides humectant-rich moisturizing ideal for oily skin
✅ As part of a routine: A humectant moisturizing boost, beneficial for any skin type
✅ Lightweight texture
 

⭕ Cons: 

⚠️ Only if used as a standalone moisturizer - it needs to be paired with occlusives to seal in humectants
   

Summary: e.l.f. Cosmetics Hydrating Booster Drops

 
Based on the ingredient list analysis, CreamScan AI suggests that e.l.f. Cosmetics Hydrating Booster Drops
, when used alone, delivers lightweight, humectant-rich moisturizing, making it ideal for oily skin. As part of a moisturizing routine, it provides a humectant boost, beneficial for all skin types.
 
That said, there are some things about e.l.f. Cosmetics Hydrating Booster Drops worth noting.
 
Looking at its moisturizing profile, we found that it doesn’t contain any occlusive ingredients, potentially allowing the moisture attracted to the skin by humectants to evaporate. Therefore, if it’s used as the only moisturizer in a routine, it’s recommended to pair it with one that contains at least some occlusive ingredients, such as oils, butters, or silicones.
 
📌 Fact check. At CreamScan, we are committed to accuracy and fairness. If you spot any errors or something that doesn’t seem right, please click here to let us know. We regularly update the ingredient lists and monitor the latest research on ingredient efficacy to ensure that our information remains as complete and precise as possible. The information provided here is for informational purposes only and does not substitute professional advice. We do not guarantee the efficacy or safety of any product, as individual results may vary.

 

Ingredient Breakdown

Est. % Ingredient Origin Functions
75
6
4
3
2
1.5
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Est. %
Water
Function:
Origin:
Butylene Glycol
Function:
Origin:
Glycerin
Function:
Origin:
Pentylene Glycol
Function:
Origin:
Propylene Glycol
Function:
Origin:
Hydrolyzed Sodium Hyaluronate
Function:
Origin:
Chondrus Crispus Extract
Function:
Origin:
Tremella Fuciformis Sporocarp Extract
Function:
Origin:
Sodium Hyaluronate Crosspolymer
Function:
Origin:
Tocopheryl Acetate
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Hexylene Glycol
Function:
Origin:
Tromethamine
Function:
Origin:
Carbomer
Function:
Origin:
Xanthan Gum
Function:
Origin:
PPG-26-Buteth-26
Function:
Origin:
Caprylyl Glycol
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:
PEG-40 Hydrogenated Castor Oil
Function:
Origin:
Fructose
Function:
Origin:
Disodium EDTA
Function:
Origin:
Glucose
Function:
Origin:
Dextrin
Function:
Origin:
Urea
Function:
Origin:
Sucrose
Function:
Origin:
Glutamic Acid
Function:
Origin:
Aspartic Acid
Function:
Origin:
Hexyl Nicotinate
Function:
Origin:
Alanine
Function:
Origin:

Ratings

All humectants
21.8
6
4
3
2
1.5
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
0.0
None
Benchmark
20
Moisturizing rating
5.0
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 21.8 10
10.0
6
4
3
2
1.5
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Occlusivity All occlusives 0.0 20
0.0
None
Moisturizing rating
5.0
Ingredient Est. % Benchmark Humectancy
6
4
3
2
1.5
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All humectants 21.8 10
10
All humectants
21.8
6
4
3
2
1.5
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
None
All occlusives 0.0 20
0.0
All occlusives
0.0
None
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
None
Total
0
None
Anti-wrinkle rating
0
Ingredient Est. % Benchmark
Rich in Antioxidants
1.5
1
0.3
All antioxidants 2.8 3 No
All antioxidants
2.8
Hydrolyzed Sodium Hyaluronate
1.5
Tremella Fuciformis Sporocarp Extract
1
Tocopheryl Acetate
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
0.3
All soothing 0.3 5 No
All soothing
0.3
0.3
Benchmark
5

Ingredients explained

Water
Est. %75
Function
Origin
WaterThe most used ingredient in skincare. Its concentration defines the product texture: rich creams may have about 50% of water while a light jelly about 90%. Water doesn’t moisturize the skin by itself and is used in skincare as a solvent for other ingredients.
Butylene Glycol
Est. %6
Function
Origin
Butylene Glycol

A clear, colorless liquid humectant that draws moisture to the skin. The humectancy of butylene glycol, owed to its two hydroxyl groups, is quite considerable, although not as powerful as glycerin, which contains three hydroxyl groups.

Glycerin
Est. %4
Function
Origin
Glycerin

The most popular moisturizing ingredient in the world. It is a powerful humectant – cheap yet very effective.

Pentylene Glycol
Est. %3
Function
Origin
Pentylene Glycol

A naturally or synthetically derived preservative that exhibits effective antifungal and antibacterial traits. It also acts as a booster for more traditional preservatives. Pentylene glycol can also serve as a moisturizing humectant and solvent.

Propylene Glycol
Est. %2
Function
Origin
Propylene GlycolA clear, thick, odorless liquid of synthetic origin. Its main function is to stabilize cosmetic products exposed to varying temperatures. It is also a moderately strong humectant with similar properties to glycerin.
Hydrolyzed Sodium Hyaluronate
Est. %1.5
Function
Origin
Hydrolyzed Sodium HyaluronateA very small-molecule version of regular sodium hyaluronate. It is a powerful humectant skin-identical ingredient that absorbs into the skin and offers plumping, smoothing, and anti-wrinkle effects.
Chondrus Crispus Extract
Est. %1.3
Function
Origin
Chondrus Crispus ExtractAn extract from the species of red marine algae called Irish moss or carrageen moss. It is edible and widely used to produce carrageenan, a polysaccharide with humectant moisturizing and soothing properties.
Tremella Fuciformis Sporocarp Extract
Est. %1
Function
Origin
Tremella Fuciformis Sporocarp ExtractA fungi extract. The mushroom contains various proteins, fiber, and humectant and antioxidant polysaccharides - which help to restore the water and collagen content in the skin.
Sodium Hyaluronate Crosspolymer
Est. %0.3
Function
Origin
Sodium Hyaluronate CrosspolymerA modified version of regular hyaluronic acid. It attracts large volumes of water, thereby making it an effective humectant moisturizing ingredient.
Tocopheryl Acetate
Est. %0.3
Function
Origin
Tocopheryl Acetate

An antioxidant derivative of tocopherol (vitamin E). It helps to protect cells from free radicals and UV damage through the conversion to active vitamin E in the skin. It is more stable than tocopherol.

Phenoxyethanol
Est. %0.3
Function
Origin
PhenoxyethanolThe most frequently used preservative in skincare. It is a clear, oil-like liquid synthetic substance that protects products from harmful bacteria and yeast, whilst still leaving skin microflora unharmed. It is confirmed by research to be harmless.
Hexylene Glycol
Est. %0.3
Function
Origin
Hexylene GlycolA multifunctional ingredient that is best known for its use as a solvent. It can dissolve both water-based ingredients and oils. For this reason, it can also function as an emulsifier, allowing oil and water ingredients to mix and remain stable.
Tromethamine
Est. %0.3
Function
Origin
TromethamineAn ingredient based on amino acids that is commonly used as a pH adjuster. It has a high pH, which means that it is basic (alkaline), so adding tromethamine to a skincare product will increase its overall pH level.
Carbomer
Est. %0.3
Function
Origin
CarbomerA synthetic ingredient with the ability to gel water. When used in emulsions, such as lotions and creams, carbomer can also act as an emulsion stabilizer.
Xanthan Gum
Est. %0.3
Function
Origin
Xanthan GumA natural multi-functional ingredient that originates from fermented sugars. Xanthan gum acts as a viscosity-building agent to thicken skincare products. It is also an excellent stabilizer and works well to hold other ingredients together.
PPG-26-Buteth-26
Est. %0.3
Function
Origin
PPG-26-Buteth-26A water-loving surfactant, which means it can act as an emulsifier, solubilizer, and cleansing agent. As an emulsifier, it helps to create oil-in-water emulsions.
Caprylyl Glycol
Est. %0.3
Function
Origin
Caprylyl GlycolAn emollient that improves product spreadability and offers a silky feel on the skin. It also acts as a preservative booster that improves the efficacy of other preservatives. According to the manufacturer, it is also a humectant moisturizer.
Ethylhexylglycerin
Est. %0.3
Function
Origin
EthylhexylglycerinA preservative booster derived from glycerin. It is commonly paired with other preservatives to improve their efficacy. Ethylhexylglycerin is also a humectant due to its chemical base of glycerin.
PEG-40 Hydrogenated Castor Oil
Est. %0.3
Function
Origin
PEG-40 Hydrogenated Castor OilA castor oil-derived ingredient often used to incorporate small amounts of oil (such as a fragrance) into a water-based product. PEG-4 HCO is a gold-standard solubilizer and can be used in low amounts due to its ability to solubilize things so well.
Fructose
Est. %0.3
Function
Origin
FructoseA natural sugar that moisturizes the skin by drawing water to the surface.
Disodium EDTA
Est. %0.3
Function
Origin
Disodium EDTAA synthetic chelator that helps to maintain the look and smell of a product by 'locking up' troublesome metal ions.
Glucose
Est. %0.3
Function
Origin
GlucoseA simple sugar that is also one of two components of sucrose, or table sugar. It is used as a humectant in skincare products. Glucose is also used to flavor lip care cosmetics because of its mildly sweet taste.
Dextrin
Est. %0.3
Function
Origin
DextrinA partially hydrolyzed potato starch, most commonly used as a viscosity controlling and binding agent. When dispersed into water, it can create textures ranging from a thick paste to a soft gel.
Urea
Est. %0.3
Function
Origin
UreaUrea can be found in urine, skin, and other tissues as a degradation product of proteins. In concentrations below 5%, urea is humectant moisturizing. At concentrations above 10% it is keratolytic, that helps to break away old, flaking, and cracked skin.
Sucrose
Est. %0.3
Function
Origin
SucroseThis ingredient is more commonly known as table sugar or saccharose and is derived from sugar beets or sugar cane. It is used as a humectant moisturizing ingredient in skincare products, as well as a sweetener.
Glutamic Acid
Est. %0.3
Function
Origin
Glutamic AcidA non-essential amino acid that serves as a building block for all proteins in the body. It is a moisturizing humectant and a part of the skin's Natural Moisturizing Factor, a mixture of amino acids in skin cells that keeps them hydrated.
Aspartic Acid
Est. %0.3
Function
Origin
Aspartic AcidA humectant moisturizing amino acid that is a part of the skin's Natural Moisturizing Factor. It helps to retain water on the skin’s surface and is slightly acidic, thereby helping to balance the pH of a skincare product.
Hexyl Nicotinate
Est. %0.3
Function
Origin
Hexyl Nicotinate
Alanine
Est. %0.3
Function
Origin
AlanineA simple amino acid used in skincare as a humectant moisturizing ingredient. It is a part of the so-called Natural Moisturizing Factor, a complex mixture of free amino acids and other water-soluble compounds found in skin cells.