Arbonne RE9 Advanced Prepwork Gel Eye Masks Review

Arbonne RE9 Advanced Prepwork Gel Eye Masks
5.0
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
4.5Anti-wrinkle icon/ 10
Anti-wrinkle
Rich
in Antioxidants
Rich Skin Soothing icon
in Skin Soothers
Ingredients

Arbonne RE9 Advanced Prepwork Gel Eye Masks Ingredients

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

Full Ingredient List (INCI):

Water, Glycerin, 1,2-Hexanediol, Niacinamide, Agar, Pyrus Malus (Apple) Fruit Extract, Terminalia Ferdinandiana Fruit Extract, Vaccinium Vitis-Idaea Fruit Extract, Euterpe Oleracea Fruit Extract, Fragaria Chiloensis (Strawberry) Fruit Extract, Rubus Fruticosus (Blackberry) Fruit Extract, Rubus Idaeus (Raspberry) Fruit Extract, Vaccinium Angustifolium (Blueberry) Fruit Extract, Vaccinium Macrocarpon (Cranberry) Fruit Extract, Vaccinium Myrtillus Fruit Extract, Ceratonia Siliqua (Carob) Gum, Carrageenan, Caffeine, Allantoin, Sucrose, Hydrolyzed Pea Protein, Sodium Chloride, Gallyl Glucoside, Propyl Gallate, Epigallocatechin Gallatyl Glucoside, Xanthan Gum, Polysorbate 80, Carbomer, Citric Acid, Gluconolactone, Calcium Gluconate, Dehydroacetic Acid, Phenoxyethanol, Potassium Sorbate, Sodium Benzoate, Mica, Titanium Dioxide (CI 77891), Iron Oxides (CI 77491), Benzyl Alcohol
Review

Does Arbonne RE9 Advanced Prepwork Gel Eye Masks Work?

 
According to CreamScan's analysis of the ingredient list, here’s what Arbonne RE9 Advanced Prepwork Gel Eye Masks 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.
✅ Considerable anti-wrinkle efficacy: Arbonne RE9 Advanced Prepwork Gel Eye Masks has an anti-wrinkle rating of 4.5 out of 10, indicating a moderate ability to reduce wrinkles.
✅ Soothing: Arbonne RE9 Advanced Prepwork Gel Eye Masks contains a high concentration of soothing ingredients, which may help to reduce irritation and calm the skin.
✅ Antioxidant protection

  

Key Benefits of Arbonne RE9 Advanced Prepwork Gel Eye Masks

 
These are the key benefits you can expect from using Arbonne RE9 Advanced Prepwork Gel Eye Masks:
 

🔵 Lightweight Purely Humectant Moisturizing, Ideal for Oily Skin

According to CreamScan analysis, Arbonne RE9 Advanced Prepwork Gel Eye Masks 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 Glycerin (est. ≈6.0%) and Niacinamide (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.

🟣🟣 Considerable Anti-Wrinkle Efficacy

According to CreamScan analysis, Arbonne RE9 Advanced Prepwork Gel Eye Masks has a moderate anti-wrinkle rating of 4.5 out of 10.

It contains one ingredient with proven anti-wrinkle efficacy: Niacinamide (est. ≈3.0%),
 one of the most effective and well-researched anti-wrinkle ingredients. A clinical study involving 30 participants (Kawada et al.) confirmed that a cream with 4% niacinamide reduced the average depth of wrinkles around the eyes by 9% after 8 weeks of use, compared to a vehicle (the same formulation without niacinamide).
 
Among others, Arbonne RE9 Advanced Prepwork Gel Eye Masks also contains contains Caffeine and Gluconolactone, two ingredients often marketed as effective in reducing wrinkles. However, the studies supporting the anti-wrinkle claims of these ingredients provide insufficient evidence of efficacy according to CreamScan Research Evaluation Standards.
 
While this does not categorically rule out the possibility that these ingredients may reduce wrinkles, their efficacy is not supported by convincing, vehicle-controlled, double-blind clinical studies - at least none that were available to the CreamScan team at the time of publication.
 
Therefore, these ingredients do not contribute to the anti-wrinkle rating.
 
📌 Moisturizers, when used regularly, are proven to prevent wrinkle formation and even reduce existing wrinkles. Therefore, this product, like any other moisturizer, can deliver some additional anti-wrinkle effects through its moisturizing action.
 

Please refer to the Ratings section below for details of the anti-wrinkle rating calculation.

🍀 Rich in Skin-Protecting Antioxidants

We estimate that Arbonne RE9 Advanced Prepwork Gel Eye Masks is rich (> 3%) in antioxidants, specifically Niacinamide (est. ≈3.0%).

A key benefit of antioxidants is their ability to reduce oxidative stress caused by free radicals and therefore prevent accelerated skin aging. Studies also show that antioxidants can protect against environmental damage such as UV radiation and pollution, and help reduce inflammation and skin redness.

🔴 Skin Soothing and Calming Potential

Based on the ingredient list analysis, Arbonne RE9 Advanced Prepwork Gel Eye Masks is rich (> 5%) in soothing ingredients, particularly Niacinamide (est. ≈3.0%).

When applied to the skin, compounds of soothing ingredients, such as triglycerides, phospholipids, fatty acids, phenolic compounds, and antioxidants, work together to soothe the skin through various mechanisms: reducing inflammation, promoting wound healing, repairing the skin barrier, and providing antimicrobial and antioxidant activities.

📌 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: Arbonne RE9 Advanced Prepwork Gel Eye Masks

 
CreamScan identified a few things to consider before adding Arbonne RE9 Advanced Prepwork Gel Eye Masks 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 Arbonne RE9 Advanced Prepwork Gel Eye Masks 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 Arbonne RE9 Advanced Prepwork Gel Eye Masks

 
Here’s an overview of the pros and cons of Arbonne RE9 Advanced Prepwork Gel Eye Masks 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
Provides considerable anti-wrinkle efficacy thanks to Niacinamide
✅ Rich in antioxidants that combat oxidative stress associated with accelerated skin aging and defend against environmental damage
✅ Potentially soothing, as it contains a high concentration of soothing ingredients, specifically Niacinamide
 

⭕ Cons: 

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

Summary: Arbonne RE9 Advanced Prepwork Gel Eye Masks

 
Based on the ingredient list analysis, CreamScan AI suggests that Arbonne RE9 Advanced Prepwork Gel Eye Masks
, 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.
 
Arbonne RE9 Advanced Prepwork Gel Eye Masks contains ingredients with solid, robust evidence of anti-wrinkle efficacy, in concentrations that may deliver a noticeable anti-wrinkle effect.
 
Rich in antioxidants, Arbonne RE9 Advanced Prepwork Gel Eye Masks helps protect against free radical damage and offers multiple benefits for all skin types, including preventing premature aging, defending against environmental damage, and calming inflammation. This product is also formulated with a high concentration of soothing ingredients, offering the potential to calm and comfort irritated skin. Whether you’re experiencing redness, irritation, or general sensitivity, its soothing properties may help restore balance and provide relief.
 
That said, there are some things about Arbonne RE9 Advanced Prepwork Gel Eye Masks 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
70
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
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Est. %
Water
Function:
Origin:
Glycerin
Function:
Origin:
1,2-Hexanediol
Function:
Origin:
Niacinamide
Function:
Origin:
Agar
Function:
Origin:
Pyrus Malus (Apple) Fruit Extract
Function:
Origin:
Terminalia Ferdinandiana Fruit Extract
Function:
Origin:
Vaccinium Vitis-Idaea Fruit Extract
Function:
Origin:
Euterpe Oleracea Fruit Extract
Function:
Origin:
Fragaria Chiloensis (Strawberry) Fruit Extract
Function:
Origin:
Rubus Fruticosus (Blackberry) Fruit Extract
Function:
Origin:
Rubus Idaeus (Raspberry) Fruit Extract
Function:
Origin:
Vaccinium Angustifolium (Blueberry) Fruit Extract
Function:
Origin:
Vaccinium Macrocarpon (Cranberry) Fruit Extract
Function:
Origin:
Vaccinium Myrtillus Fruit Extract
Function:
Origin:
Ceratonia Siliqua (Carob) Gum
Function:
Origin:
Carrageenan
Function:
Origin:
Caffeine
Function:
Origin:
Allantoin
Function:
Origin:
Sucrose
Function:
Origin:
Hydrolyzed Pea Protein
Function:
Origin:
Sodium Chloride
Function:
Origin:
Gallyl Glucoside
Function:
Origin:
Propyl Gallate
Function:
Origin:
Epigallocatechin Gallatyl Glucoside
Function:
Origin:
Xanthan Gum
Function:
Origin:
Polysorbate 80
Function:
Origin:
Carbomer
Function:
Origin:
Citric Acid
Function:
Origin:
Gluconolactone
Function:
Origin:
Calcium Gluconate
Function:
Origin:
Dehydroacetic Acid
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Potassium Sorbate
Function:
Origin:
Sodium Benzoate
Function:
Origin:
Mica
Function:
Origin:
Titanium Dioxide (CI 77891)
Function:
Origin:
Iron Oxides (CI 77491)
Function:
Origin:
Benzyl Alcohol
Function:
Origin:

Ratings

All humectants
13.0
6
3
1.5
1.3
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 13.0 10
10.0
6
3
1.5
1.3
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
3
1.5
1.3
0.3
0.3
0.3
0.3
All humectants 13.0 10
10
All humectants
13.0
6
3
1.5
1.3
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
6 /10 4 3 4.5
n/a
- 0.3 -
n/a
- 0.3 -
Total
4.5
Niacinamide
4.5
Ingredient anti-wrinkle power
6 /10
when present at, %
4
in this formula, est. %
3
Caffeine
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Gluconolactone
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
4.5
Ingredient Est. % Benchmark
Rich in Antioxidants
3
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 antioxidants 9.8 3 Rich in antioxidants
All antioxidants
9.8
Niacinamide
3
Pyrus Malus (Apple) Fruit Extract
1.5
Terminalia Ferdinandiana Fruit Extract
1.3
Vaccinium Vitis-Idaea Fruit Extract
1
Euterpe Oleracea Fruit Extract
0.3
Rubus Fruticosus (Blackberry) Fruit Extract
0.3
Rubus Idaeus (Raspberry) Fruit Extract
0.3
Vaccinium Angustifolium (Blueberry) Fruit Extract
0.3
Vaccinium Macrocarpon (Cranberry) Fruit Extract
0.3
Vaccinium Myrtillus Fruit Extract
0.3
Caffeine
0.3
Gallyl Glucoside
0.3
Propyl Gallate
0.3
Epigallocatechin Gallatyl Glucoside
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All soothing 5.1 5 Rich in soothing
All soothing
5.1
3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
5

Ingredients explained

Water
Est. %70
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.
Glycerin
Est. %6
Function
Origin
Glycerin

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

1,2-Hexanediol
Est. %4
Function
Origin
1,2-HexanediolA multi-functional formula helper. It is a well-studied preservtive against bacteria and can help pigments and fragrances disperse evenly in a formula.
Niacinamide
Est. %3
Function
Origin
Niacinamide

Also known as vitamin B3, this ingredient is a true superstar with confirmed moisturizing, anti-acne, hyperpigmentation, and antioxidant benefits. Two studies confirm its significant anti-wrinkle efficacy.

Agar
Est. %2
Function
Origin
AgarA multifunctional jelly derived from red algae that can thicken water-based products.
Pyrus Malus (Apple) Fruit Extract
Est. %1.5
Function
Origin
Pyrus Malus (Apple) Fruit ExtractAn extract derived from apple fruit that has humectant moisturizing and antioxidant properties, as well as gentle anti-pigment effects. It contains humectant sugars, anti-pigment organic acids, and flavonoids.
Terminalia Ferdinandiana Fruit Extract
Est. %1.3
Function
Origin
Terminalia Ferdinandiana Fruit ExtractExtracted from the fruits of the Kakadu plum (which is the richest source of vitamin C among all plants) this ingredient acts as an excellent antioxidant. Besides this, it is also an antimicrobial agent with some humectant properties.
Vaccinium Vitis-Idaea Fruit Extract
Est. %1
Function
Origin
Vaccinium Vitis-Idaea Fruit Extract
Euterpe Oleracea Fruit Extract
Est. %0.3
Function
Origin
Euterpe Oleracea Fruit ExtractAn antioxidant extract obtained from the fruits of the acai palm. It has a high content of anthocyanins, responsible for the dark purple color, as well as other antioxidant phenolic compounds.
Fragaria Chiloensis (Strawberry) Fruit Extract
Est. %0.3
Function
Origin
Fragaria Chiloensis (Strawberry) Fruit Extract
Rubus Fruticosus (Blackberry) Fruit Extract
Est. %0.3
Function
Origin
Rubus Fruticosus (Blackberry) Fruit ExtractRubus fruticosus fruit extract is an extract obtained from the fruit of the Blackberry. It offers antioxidant properties and is used in skincare as an astringent ingredient due to its high content of tannins.
Rubus Idaeus (Raspberry) Fruit Extract
Est. %0.3
Function
Origin
Rubus Idaeus (Raspberry) Fruit ExtractAn antioxidant and astringent extract derived from raspberries - which are a rich source of flavonoids, anthocyanins, phenolic acids, and tannins.
Vaccinium Angustifolium (Blueberry) Fruit Extract
Est. %0.3
Function
Origin
Vaccinium Angustifolium (Blueberry) Fruit ExtractObtained from the fruits of the lowbush blueberry, this purple-blue extract is rich in antioxidant vitamin C and anthocyanins.
Vaccinium Macrocarpon (Cranberry) Fruit Extract
Est. %0.3
Function
Origin
Vaccinium Macrocarpon (Cranberry) Fruit ExtractA bright red extract derived from cranberry fruits that is rich in powerful antioxidant anthocyanins, as well as astringent tannins.
Vaccinium Myrtillus Fruit Extract
Est. %0.3
Function
Origin
Vaccinium Myrtillus Fruit ExtractAn extract derived from the berries of the bilberry plant, sometimes called European blueberry. It is rich in antioxidant anthocyanins and astringent tannins.
Ceratonia Siliqua (Carob) Gum
Est. %0.3
Function
Origin
Ceratonia Siliqua (Carob) GumAlso known as carob gum, this ingredient is a plant-based formula helper extracted from carob tree seeds. It consists of film- and gel-forming polysaccharides called galactomannans.
Carrageenan
Est. %0.3
Function
Origin
CarrageenanA gum-like thickener derived from a species of red algae called Irish moss. It helps to form a soft film on the skin, and aids in stabilizing product forms.
Caffeine
Est. %0.3
Function
Origin
CaffeineAn antioxidant compound that is obtained from coffee and tea leaves. It increases the microcirculation of blood in the skin and is claimed to be able to reduce the appearance of orange peel skin (although the research is lacking).
Allantoin
Est. %0.3
Function
Origin
AllantoinA fluffy, white powder that acts as a humectant due to its water-loving chemistry and as an exfoliant that helps to remove dead skin cells. It has also been shown to be very soothing to irritated and inflamed 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.
Hydrolyzed Pea Protein
Est. %0.3
Function
Origin
Hydrolyzed Pea Protein
Sodium Chloride
Est. %0.3
Function
Origin
Sodium Chloride

You’re definitely familiar with sodium chloride, even if you don’t think you are. It’s table salt! Salt works well with some cleansing ingredients (surfactants) to thicken them into gels. It also acts as a stabilizer for water-in-oil emulsions.

Gallyl Glucoside
Est. %0.3
Function
Origin
Gallyl Glucoside
Propyl Gallate
Est. %0.3
Function
Origin
Propyl GallateA semi-synthetic antioxidant manufactured from plant-based gallic acid. It protects the oils in the formulation from degrading and going rancid.
Epigallocatechin Gallatyl Glucoside
Est. %0.3
Function
Origin
Epigallocatechin Gallatyl Glucoside
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.
Polysorbate 80
Est. %0.3
Function
Origin
Polysorbate 80A non-ionic surfactant, which means that it contains no chemical charges. It can be used as a mild cleansing agent in skin cleansing products but is more commonly used for its emulsifying abilities.
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.
Citric Acid
Est. %0.3
Function
Origin
Citric AcidA gently exfoliating AHA that helps to remove the top layer of dead skin cells. In comparison to other AHAs, citric acid has been shown to be one of the least effective. It is also very commonly used as a stabilizing and pH-controlling agent.
Gluconolactone
Est. %0.3
Function
Origin
GluconolactoneA PHA derived from glucose. It has exfoliating and humectant properties and acts as a penetration enhancer for other ingredients. It has also been shown to assist in the treatment of acne and the prevention of photoaging.
Calcium Gluconate
Est. %0.3
Function
Origin
Calcium GluconateA white crystalline powder that can act as a humectant when dissolved into water. It is also a chelating agent.
Dehydroacetic Acid
Est. %0.3
Function
Origin
Dehydroacetic AcidA globally approved preservative ingredient. It is a powerful fungicide and a moderate bactericide, which makes it a broad-spectrum preservative. Because it is mildly effective against bacteria, it is often paired with stronger bactericides.
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.
Potassium Sorbate
Est. %0.3
Function
Origin
Potassium SorbateA preservative widely used in food and personal care products, available from natural sources or synthetically produced. Potassium sorbate works by inhibiting the growth of yeasts, molds, and some bacteria.
Sodium Benzoate
Est. %0.3
Function
Origin
Sodium BenzoateA preservative that usually works in combination with other preservatives. It has to be at low pH (<5.5) to be effective.
Mica
Est. %0.3
Function
Origin
MicaA mineral powder made up of silicates with several functions (the main one being as a colorant). It has a shimmery appearance, making it highly desirable in certain cosmetic products. Mica also helps the product to apply more smoothly.
Titanium Dioxide (CI 77891)
Est. %0.3
Function
Origin
Titanium Dioxide (CI 77891)One of two the most commonly used mineral sunscreens. It can absorb UV light, including UVB – which causes burning, tanning, and even skin cancer. Also used as a colorant, titanium dioxide gives a product a bright white color.
Iron Oxides (CI 77491)
Est. %0.3
Function
Origin
Iron Oxides (CI 77491)A red colorant also known as red iron oxide. This is an EU-approved colorant used in a wide variety of products.
Benzyl Alcohol
Est. %0.3
Function
Origin
Benzyl Alcohol

A multifunctional ingredient that is supplied as a clear, colorless liquid. Its main function is as a flavoring agent and fragrance. It also acts as a broad-spectrum preservative, solvent, and viscosity-controlling agent that thins the product.