Below is every ingredient in Neutrogena Hydro Boost 3D Sleeping Mask explained, its standout actives, and the side effects reported in research for those actives — analysed for Indian skin.
Flags derived from the ingredient list using dermatology reference data (fungal-acne substrate, comedogenicity, EU allergens). General guidance, not a diagnosis.
Answers are derived from the printed ingredient list and dermatology reference data — general guidance, not a diagnosis or a therapeutic claim.
Citrus Limon (Lemon) Peel Extract is a plant-derived ingredient rich in flavonoids, vitamin C, and citric acid, used in skincare for its antioxidant, brightening, and mild astringent properties. It is often included for toning and as a natural fragrance or freshening agent.
Zinc gluconate is a zinc salt of gluconic acid used topically and orally for its anti-inflammatory, antibacterial, and sebum-regulating properties, often in acne and oily-skin formulations. It supplies bioavailable zinc that supports skin barrier function and wound healing.
Copper gluconate is a copper salt of gluconic acid used in skincare as a source of copper, supporting antioxidant defense and enzymatic processes involved in collagen and elastin synthesis. It is often included in anti-aging and wound-supportive formulations.
Aggregated from the active ingredients in this product.
| Reported effect | How often | Notes |
|---|---|---|
| Skin dryness or barrier disruption with excessive contact | Uncommon | Frequent or prolonged exposure to water, especially hot or hard water, can disrupt the skin barrier and contribute to transepidermal water loss. |
| Irritation from impurities or hard water minerals | Rare | Reactions are attributed to contaminants, chlorine, or mineral content rather than water itself. |
| Mild transient stinging or irritation | Uncommon | More likely at high concentrations or on compromised/broken skin. |
| Tacky or sticky skin feel | Common | A cosmetic sensation rather than an adverse reaction, more noticeable at higher concentrations. |
| Contact dermatitis or allergic reaction | Rare | True allergy to glycerin is uncommon; patch-test positivity is infrequent. |
| Skin dehydration in very low humidity | Rare | In very dry environments humectants may draw water from deeper skin layers if not paired with an occlusive. |
| Allergic contact dermatitis | Rare | Documented in patch-test studies but considered a relatively weak sensitizer. |
| Redness or itching | Rare | Typically resolves after discontinuation. |
| Skin irritation | Rare | Generally well tolerated; mild irritation reported infrequently in sensitive individuals. |
| Comedogenicity (clogged pores) | Rare | Considered low to non-comedogenic, but possible in acne-prone skin depending on formulation. |
| Mild skin irritation or redness | Rare | Generally considered non-irritating; occasional mild reactions reported. |
| Clogged pores / comedogenic-related breakouts | Uncommon | Often anecdotal; dimethicone is largely regarded as non-comedogenic but may trap debris if skin is not cleansed well. |
| Eye irritation on accidental contact | Rare | Transient stinging or discomfort if product enters the eyes. |
| Mild skin irritation | Rare | Occasional transient redness or stinging, typically in sensitive skin. |
| Eye irritation | Uncommon | Possible irritation on direct ocular contact in rinse-off or facial products. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
| Ingredient | What it does |
|---|---|
| Water Solvent/vehicle | Water is the most common base ingredient in cosmetic formulations, serving as a solvent that dissolves other ingredients and forms the bulk of emulsions and aqueous solutions. It is generally considered safe and non-irritating. |
| Glycerin Humectant | Glycerin is a widely used humectant that attracts and retains water in the skin, helping to hydrate the stratum corneum and support barrier function. It is considered safe and well-tolerated across most skin types and concentrations. |
| Butylene Glycol Humectant / solvent | Butylene glycol is a small diol commonly used in skincare as a humectant, solvent, and viscosity-reducing agent that helps dissolve other ingredients and improve skin feel. It is widely regarded as safe and non-sensitizing for the majority of users at cosmetic concentrations. |
| Isononyl Isononanoate Emollient/skin-conditioning agent | Isononyl Isononanoate is a synthetic ester emollient used in cosmetics to impart a light, silky, non-greasy skin feel and to aid the spreadability of formulations. It functions as a base/texture ingredient rather than a treatment active. |
| Dimethicone Emollient/occlusive (silicone) | Dimethicone is a silicone-based polymer used in skincare to soften skin, smooth texture, and form a breathable protective barrier that reduces transepidermal water loss. It is widely used as a base/formulation ingredient rather than a therapeutic active. |
| Acrylates/Beheneth-25 Methacrylate Copolymer Rheology modifier / thickener | Acrylates/Beheneth-25 Methacrylate Copolymer is a synthetic associative thickener used to control viscosity and stabilize emulsions in skincare and cosmetic formulations. It provides smooth texture and suspension of insoluble particles without contributing active treatment benefits. |
| Zea Mays (Corn) Starch Absorbent / anti-caking agent | Zea Mays (Corn) Starch is a natural polysaccharide powder derived from corn kernels, used in cosmetics to absorb moisture and oil, impart a soft matte feel, and act as a bulking or anti-caking agent. It is a formulation/base ingredient rather than a therapeutic active. |
| Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Emulsifier/stabilizer (thickener) | Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer is a synthetic acrylate-based polymer used to thicken, stabilize, and emulsify cosmetic formulations, creating smooth gel and cream textures. It is widely employed as a rheology modifier and is not a therapeutic active. |
| Phenoxyethanol Preservative | Phenoxyethanol is a widely used broad-spectrum preservative that protects cosmetic and skincare formulations from bacterial and fungal contamination. It is typically used at concentrations up to 1% and serves as a formulation/base ingredient rather than an active treatment. |
| Dimethicone Crosspolymer Silicone-based texture enhancer/film former | Dimethicone Crosspolymer is a crosslinked silicone polymer used in skincare and cosmetics to provide a smooth, silky feel, absorb excess oil, blur the appearance of pores and fine lines, and improve product spreadability. It functions as a formulation ingredient rather than a therapeutic active. |
| Isohexadecane Emollient / solvent | Isohexadecane is a synthetic, branched-chain hydrocarbon (saturated isoparaffin) used as a lightweight emollient, solvent, and spreading agent in cosmetic formulations. It imparts a silky, non-greasy feel and helps disperse pigments and other ingredients. |
| Caprylyl Glycol Humectant / skin-conditioning agent and preservative booster | Caprylyl glycol is a multifunctional emollient and humectant derived from caprylic acid that helps hydrate skin and enhance the efficacy of preservatives in formulations. It is widely used as a stabilizing and conditioning base ingredient rather than a therapeutic active. |
| Hydrogenated Palm Glycerides Emollient / emulsifier | Hydrogenated Palm Glycerides is a palm oil-derived lipid blend of mono-, di-, and triglycerides used in skincare to soften skin, stabilize emulsions, and provide an occlusive, conditioning texture. It functions as a base formulation ingredient rather than an active treatment. |
| Potassium Cetyl Phosphate Emulsifier | Potassium Cetyl Phosphate is an anionic emulsifier and surfactant used in oil-in-water formulations to stabilize emulsions and improve texture. It is considered a formulation/base ingredient rather than a treatment active. |
| Trehalose Humectant / moisturizer | Trehalose is a naturally occurring disaccharide used in skincare as a humectant and protective agent, helping retain moisture and stabilize cell membranes and proteins against dehydration and oxidative stress. It is well tolerated and commonly used to support skin barrier hydration. |
| Ethylhexylglycerin Preservative booster / skin-conditioning agent | Ethylhexylglycerin is a multifunctional glyceryl ether used in cosmetics primarily as a preservative-enhancing agent and emollient, often paired with phenoxyethanol to broaden antimicrobial efficacy. It also acts as a deodorizing agent and humectant in skincare formulations. |
| Dimethiconol Emollient/silicone conditioning agent | Dimethiconol is a silicone-based polymer used in skincare and haircare to provide smoothing, conditioning, and a soft, non-greasy emollient feel. It forms a thin, breathable film that reduces moisture loss and improves spreadability of formulations. |
| Disodium EDTA Chelating agent | Disodium EDTA is a chelating agent used in cosmetics to bind metal ions, improving product stability, preventing rancidity, and enhancing the efficacy of preservatives. It is a formulation/base ingredient rather than a treatment active. |
| Polysorbate 60 Emulsifier / surfactant | Polysorbate 60 is a nonionic surfactant and emulsifier derived from sorbitol and stearic acid, used to blend oil and water phases and stabilize emulsions in creams and lotions. It functions as a formulation aid rather than a therapeutic active. |
| Sodium Hydroxide pH adjuster | Sodium hydroxide (lye) is a strong alkaline compound used in small amounts to adjust and stabilize the pH of cosmetic formulations. At regulated low concentrations in finished products it is considered safe, though it is corrosive in concentrated form. |
| Citrus Limon (Lemon) Peel Extract Key active Antioxidant/astringent botanical extract | Citrus Limon (Lemon) Peel Extract is a plant-derived ingredient rich in flavonoids, vitamin C, and citric acid, used in skincare for its antioxidant, brightening, and mild astringent properties. It is often included for toning and as a natural fragrance or freshening agent. |
| Fragrance Fragrance/masking agent | Fragrance refers to a blend of natural or synthetic aromatic compounds added to skincare products to impart a pleasant scent or mask the odor of other ingredients. It serves a sensory and formulation purpose rather than a therapeutic one. |
| Hydrolyzed Hyaluronic Acid Humectant / moisturizer | Hydrolyzed hyaluronic acid is a low-molecular-weight form of hyaluronic acid broken into smaller fragments, allowing better penetration into the skin to bind water and improve hydration. It is widely used in moisturizers and serums to enhance skin moisture content and surface smoothness. |
| Sodium Hyaluronate Humectant / hydrator | Sodium hyaluronate is the sodium salt of hyaluronic acid, a glycosaminoglycan that attracts and binds water to the skin to improve hydration and surface plumpness. Its lower molecular weight allows better penetration than native hyaluronic acid. |
| Sodium Laureth Sulfate Surfactant/cleansing agent | Sodium Laureth Sulfate (SLES) is an anionic surfactant widely used as a foaming and cleansing agent in shampoos, body washes, and facial cleansers. It is generally considered milder than Sodium Lauryl Sulfate due to ethoxylation. |
| Magnesium Aspartate Skin-conditioning / mineral salt | Magnesium Aspartate is a magnesium salt of aspartic acid used in skincare primarily as a skin-conditioning agent and source of magnesium, sometimes included to support skin barrier function and hydration. It typically functions as a supporting ingredient rather than a primary therapeutic active. |
| Zinc Gluconate Key active Sebum regulator / anti-inflammatory | Zinc gluconate is a zinc salt of gluconic acid used topically and orally for its anti-inflammatory, antibacterial, and sebum-regulating properties, often in acne and oily-skin formulations. It supplies bioavailable zinc that supports skin barrier function and wound healing. |
| Sodium Metabisulfite Antioxidant/preservative | Sodium metabisulfite is an inorganic salt used in cosmetic and topical formulations primarily as an antioxidant and preservative to prevent oxidation and discoloration of products. It releases sulfur dioxide, which helps stabilize sensitive ingredients. |
| Copper Gluconate Key active Skin-conditioning / antioxidant trace mineral | Copper gluconate is a copper salt of gluconic acid used in skincare as a source of copper, supporting antioxidant defense and enzymatic processes involved in collagen and elastin synthesis. It is often included in anti-aging and wound-supportive formulations. |
Key active = does the main work. Ingredient explanations are drawn from public databases & literature.
Peer-reviewed papers on the active ingredients in this product, via PubMed.