Below is every ingredient in Kiehl S Ultra Facial Cleanser 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.
No standout actives — this is a basic/support formula.
Aggregated from the active ingredients in this product.
| Reported effect | How often | Notes |
|---|---|---|
| Irritation or sensitivity | Very rare | Purified water itself is essentially inert; rare reactions are attributable to contaminants or accompanying ingredients rather than water. |
| Transepidermal water loss aggravation in compromised skin | Rare | Evaporation of water from products may transiently increase dryness in very compromised skin barriers if occlusives are absent. |
| 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. |
| Mild transient skin dryness or tightness | Uncommon | More likely with high concentrations or frequent use in those with already dry or compromised skin. |
| Skin or eye irritation | Rare | Generally considered low-irritation; mild stinging possible on contact with eyes during cleansing. |
| Allergic contact dermatitis | Very rare | Sensitization to this amino acid surfactant is uncommon and infrequently documented. |
| Skin dryness or tightness | Uncommon | High concentrations may have a mild osmotic drying effect, especially on compromised skin. |
| Irritation or stinging on broken skin | Uncommon | Salt can sting when applied to abrasions, cuts, or inflamed areas. |
| Mechanical irritation from scrub formulations | Rare | Coarse salt particles in exfoliants may cause microabrasions if used aggressively. |
| Allergic contact reaction | Very rare | True allergy to sodium chloride is exceptionally uncommon. |
| Skin irritation | Rare | Generally well tolerated; mild irritation possible in sensitive individuals. |
| Eye irritation | Rare | Possible transient stinging in rinse-off products if contact occurs. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
| Ingredient | What it does |
|---|---|
| Aqua Solvent / vehicle | Aqua (water) is the most common base ingredient in skincare formulations, serving as a solvent that dissolves water-soluble components and forms the medium for emulsions. It has no direct treatment activity and primarily contributes to texture, spreadability, and product delivery. |
| 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. |
| Sodium Cocoyl Glycinate Mild surfactant/cleansing agent | Sodium Cocoyl Glycinate is a gentle amino acid-derived (glycine and coconut fatty acid) anionic surfactant used in cleansers and shampoos to produce foam and remove dirt and oil. It is valued for its mildness and skin-friendly, near-neutral pH compared to harsher sulfate surfactants. |
| Sodium Chloride Thickener / viscosity adjuster | Sodium chloride (table salt) is commonly used in cosmetics as a thickening and viscosity-control agent, particularly in surfactant-based cleansers, and also acts as a mild abrasive in scrubs. It is generally well tolerated and considered a formulation ingredient rather than a treatment active. |
| Glycol Distearate Opacifier/pearlescent agent, emollient | Glycol Distearate is a diester of ethylene glycol and stearic acid used primarily to impart a pearlescent or opaque appearance to cleansers and shampoos, while also providing mild emollient and thickening properties. It functions as a formulation aid rather than an active treatment ingredient. |
| Disodium Laureth Sulfosuccinate Mild surfactant/cleansing agent | Disodium Laureth Sulfosuccinate is a gentle anionic surfactant derived from sulfosuccinic acid, used in cleansers and shampoos to produce foam and remove dirt and oil. It is valued for being milder and less irritating than harsher sulfates like sodium lauryl sulfate. |
| Citric Acid pH adjuster / AHA exfoliant | Citric acid is an alpha-hydroxy acid derived from citrus fruits, used primarily to adjust and buffer formulation pH and as a chelating agent, and at higher concentrations as a mild chemical exfoliant. It can promote surface cell turnover and is sometimes included in antioxidant or brightening products. |
| Glyceryl Stearate Emulsifier/emollient | Glyceryl Stearate is a glycerol ester of stearic acid widely used as a non-ionic emulsifier and emollient to stabilize oil-in-water formulations and improve skin feel. It functions as a base/formulation ingredient rather than a therapeutic active. |
| PEG-100 Stearate Emulsifier/surfactant | PEG-100 Stearate is a polyethylene glycol ester of stearic acid used as a nonionic surfactant and emulsifier to stabilize oil-in-water formulations and improve skin feel. It functions as a formulation base ingredient rather than 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. |
| Hydroxyacetophenone Antioxidant / soothing agent | Hydroxyacetophenone (acetophenone-based compound, often 4'-hydroxyacetophenone) is used in skincare primarily as an antioxidant and skin-conditioning agent that can also enhance the stability and efficacy of preservative systems. It is valued for its soothing properties and helps neutralize free radicals while reducing potential irritation from other formulation components. |
| Kaolin Absorbent/clay cleanser | Kaolin is a naturally occurring soft white clay (hydrated aluminum silicate) used in skincare to absorb excess sebum, oil, and impurities. It is commonly found in face masks, cleansers, and powders as a mattifying and gentle exfoliating agent. |
| Hydroxypropyl Starch Phosphate Thickener / stabilizer | Hydroxypropyl Starch Phosphate is a modified starch derived from natural sources (such as corn or potato) used in cosmetic formulations primarily as a thickening, emulsion-stabilizing, and texture-enhancing agent. It is generally considered safe and well tolerated in topical products. |
| 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. |
| Acrylates Copolymer Film-former / texture enhancer | Acrylates Copolymer is a synthetic polymer used in skincare and cosmetics primarily as a film-forming agent, viscosity modifier, and to improve product texture and wear. It helps control sebum, provides a smooth feel, and stabilizes formulations. |
| Behenyl Alcohol Emollient / Thickener | Behenyl alcohol is a fatty alcohol derived from behenic acid that functions as an emollient, thickening agent, and emulsion stabilizer in cosmetic and skincare formulations. It helps soften the skin and improve product texture and stability. |
| Magnesium Gluconate Mineral salt / skin-conditioning agent | Magnesium gluconate is the magnesium salt of gluconic acid used in skincare as a source of magnesium and as a skin-conditioning and humectant-supporting agent. It can help support skin barrier function and is sometimes included for its mild soothing properties. |
| Squalane Emollient / occlusive moisturizer | Squalane is a saturated, stable hydrocarbon derived from squalene (sourced from plants like olives or sugarcane, or shark liver) used as a lightweight emollient that softens skin and reinforces the skin barrier by reducing transepidermal water loss. It is well tolerated, non-comedogenic for most users, and serves as a base or carrier ingredient rather than a therapeutic active. |
| Trisodium Ethylenediamine Disuccinate Chelating agent | Trisodium Ethylenediamine Disuccinate (Trisodium Ethylenediamine Disuccinate, or HEDTA-type biodegradable chelator) is a biodegradable chelating agent used to bind metal ions in cosmetic formulations. By sequestering trace metals, it helps stabilize products, prevent discoloration and rancidity, and enhance the efficacy of preservatives and antioxidants. |
| Panthenol Humectant / skin-conditioning agent | Panthenol (provitamin B5) is converted to pantothenic acid in the skin, where it acts as a humectant and helps support skin barrier function and hydration. It is also used for its soothing and mild anti-inflammatory properties in topical 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.