Simple Water Boost Hydrating Booster

Simple Water Boost Hydrating Booster

Efficacy75/100IrritancyMedium
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Works for

1 of 1 advertised claim delivered

Moisturizing
Glyceryl acrylate/acrylic acid copolymer, Dimethicone + 7 more
Good evidence
What the product description says
“Water Boost Hydrating Booster”
Source: Feelunique

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. The following ingredients in this product do the job: glycerin, glyceryl acrylate/acrylic acid copolymer.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: dimethicone, caprylyl glycol.

Glyceryl acrylate/acrylic acid copolymerKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin and provide a longer-lasting hydration. Can create a thicker product consistency~0.35–0.85%
DimethiconeKey active· Emollient, OcclusiveEffect: HighA silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish~2.1–3.1%
GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~4.2–6.3%
Saccharide isomerateKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin~0.1–0.35%
Butylene glycol· HumectantEffect: LowUsed to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin~2.6–4%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.85–1.3%
Peg-8· HumectantEffect: LowUsed to create a nice product consistency~1.6–2.4%
Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~3.7–5.5%
Sodium lactateUnder-dosedEffect: HighHelps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product~0.05–0.2%

Can it cause trouble?

Irritancy
1 strong irritant: Benzophenone-4
Medium risk
We flagged 14 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Benzophenone-4Sulisobenzone. A UV filter. Is typically used to improve the product stability under exposure to UV light. It is effective against both UVA and UVB rays. It can be used is larger concentrations as a sun protection ingredient for the skin, but can be irritatingHigh~1.7–2.6%est.
Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~3.7–5.5%est.
Peg-8Used to create a nice product consistencyMedium~1.6–2.4%est.
Ammonium acryloyldimethyltaurate/beheneth-25 methacrylate crosspolymerUsed to stabilize product formulationsMedium~1.4–2.1%est.
BhtA preservativeMedium~0.95–1.45%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.85–1.3%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.4–0.9%est.
Glyceryl acrylate/acrylic acid copolymerHelps attract water to the upper layer of the skin and provide a longer-lasting hydration. Can create a thicker product consistencyMedium~0.35–0.85%est.
Peg-40 hydrogenated castor oilHelps oil and water mix togetherMedium~0.35–0.8%est.
Polyvinyl alcoholHelps improve the product textureMedium~0.2–0.8%est.
Potassium hydroxideUsed to adjust the pH level of productsMedium~0.1–0.5%est.
Sodium citrateHelps to control the skin's pH level. Maintains the skin's natural film of amino-lactic acids and oils. Helps to preserve productsMedium~0.05–0.25%est.
Sodium lactateHelps attract water to the upper layer of the skin. Is often used to adjust the pH level of the productMedium~0.05–0.2%est.
T-butyl alcoholUsed to dissolve other ingredients and to improve smell of products. It could be irritatingMedium~0.05–0.1%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged
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Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Glycerin~4.2–6.3%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Pentylene glycol~3.7–5.5%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Used to preserve products, dissolve other ingredients and create a nice product texture

More about Pentylene glycol
Butylene glycol~2.6–4%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin

More about Butylene glycol
Dimethicone~2.1–3.1%
Key active
Irritation risk
Low
Works for
MoisturizingMattifying

A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish

More about Dimethicone
Peg-8~1.6–2.4%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Used to create a nice product consistency

More about Peg-8
Ammonium acryloyldimethyltaurate/beheneth-25 methacrylate crosspolymer~1.4–2.1%
Irritant · medium
Irritation risk
Medium

Used to stabilize product formulations

More about Ammonium acryloyldimethyltaurate/beheneth-25 methacrylate crosspolymer
Benzophenone-4~1.7–2.6%
Irritant · high
Irritation risk
High
Works for
Sun protection

Sulisobenzone. A UV filter. Is typically used to improve the product stability under exposure to UV light. It is effective against both UVA and UVB rays. It can be used is larger concentrations as a sun protection ingredient for the skin, but can be irritating

More about Benzophenone-4
Bht~0.95–1.45%
Irritant · medium
Irritation risk
Medium

A preservative

More about Bht
Caprylyl glycol~0.85–1.3%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Carbomer~0.5–1.15%
Formula
Irritation risk
Low
Works for
Cleansing

Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations

More about Carbomer
Citric acid~0.4–0.9%
Irritant · medium
Irritation risk
Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid
Glyceryl acrylate/acrylic acid copolymer~0.35–0.85%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps attract water to the upper layer of the skin and provide a longer-lasting hydration. Can create a thicker product consistency

More about Glyceryl acrylate/acrylic acid copolymer
Peg-40 hydrogenated castor oil~0.35–0.8%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Peg-40 hydrogenated castor oil
Phenoxyethanol~0.2–0.8%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Polyvinyl alcohol~0.2–0.8%
Irritant · medium
Irritation risk
Medium

Helps improve the product texture

More about Polyvinyl alcohol
Potassium carbonate~0.15–0.6%
Formula
Potassium chloride~0.15–0.5%
Formula
Potassium hydroxide~0.1–0.5%
Irritant · medium
Irritation risk
Medium

Used to adjust the pH level of products

More about Potassium hydroxide
Pvm/ma copolymer~0.1–0.45%
Formula
Saccharide isomerate~0.1–0.35%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin

More about Saccharide isomerate
Sodium chloride~0.1–0.35%
Formula
Irritation risk
Low

Used to stabilize mixtures of oil and water, and create thicker, gel-like product textures

More about Sodium chloride
Sodium citrate~0.05–0.25%
Irritant · medium
Irritation risk
Medium

Helps to control the skin's pH level. Maintains the skin's natural film of amino-lactic acids and oils. Helps to preserve products

More about Sodium citrate
Sodium lactate~0.05–0.2%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product

More about Sodium lactate
T-butyl alcohol~0.05–0.1%
Irritant · medium
Irritation risk
Medium

Used to dissolve other ingredients and to improve smell of products. It could be irritating

More about T-butyl alcohol
Trideceth-9~0.05–0.1%
Formula
Irritation risk
Low
Works for
Cleansing
More about Trideceth-9
Ingredient list view

Water, Glycerin, Pentylene glycol, Butylene glycol, Dimethicone, Peg-8, Ammonium acryloyldimethyltaurate/beheneth-25 methacrylate crosspolymer, Benzophenone-4, Bht, Caprylyl glycol, Carbomer, Citric acid, Glyceryl acrylate/acrylic acid copolymer, Peg-40 hydrogenated castor oil, Phenoxyethanol, Polyvinyl alcohol, Potassium carbonate, Potassium chloride, Potassium hydroxide, Pvm/ma copolymer, Saccharide isomerate, Sodium chloride, Sodium citrate, Sodium lactate, T-butyl alcohol, Trideceth-9

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Amazon USPrice as of 10/25/2026 21:02 GMT
$7.46
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