Kiehl’s Ultra Facial Cleanser

A balanced foaming cleanser that combines effective surfactants with squalane and botanical oils to purify the skin while preserving its natural moisture barrier.

Performance Rating: 4.2

This cleanser offers a balanced cleansing profile by combining the effective foam of Sodium Laureth Sulfate with milder surfactants like Decyl Glucoside and Cocamidopropyl Betaine. The formulation stands out due to its inclusion of lipid-replenishing oils such as Squalane, Sweet Almond Oil, and Avocado Oil, which help to counteract potential dryness and leave the skin feeling soft and conditioned. The addition of Ascorbyl Glucoside and Tocopherol provides a touch of antioxidant protection, though their efficacy is somewhat limited in a rinse-off format.

Safety Rating: 4.1

The product is fragrance-free, which is a significant advantage for those with sensitive skin or those prone to contact dermatitis. While it contains Sodium Laureth Sulfate (SLES), this is generally considered less irritating than SLS; however, it might still be slightly drying for individuals with a compromised skin barrier. The preservative system using Phenoxyethanol and Sodium Benzoate is standard and safe for cosmetic use. It lacks harsh alcohols or common allergens, making it a chemically stable and safe choice.

Final Rating: 4.1

Overall, this is a highly effective and well-formulated facial cleanser. It successfully bridges the gap between thorough cleansing and skin barrier maintenance thanks to its rich blend of emollients and humectants. The absence of fragrance and dyes elevates its appeal for daily use across various skin types, particularly for those seeking a gentle yet foaming experience that does not strip the skin’s natural oils.

Verdict

This facial cleanser strikes a sophisticated balance between deep cleansing efficacy and moisture retention, making it a standout choice for daily skincare. At its core, the formula utilizes Sodium Laureth Sulfate (SLES), a surfactant renowned for its robust cleansing ability and rich, satisfying lather. While some consumers worry about sulfates being overly harsh, this specific formulation intelligently offsets potential dryness by incorporating a suite of mild co-surfactants like Decyl Glucoside, Cocamidopropyl Betaine, and Disodium Cocoamphodiacetate. This carefully engineered synergy ensures that the product effectively lifts away dirt, excess sebum, and environmental pollutants without stripping the skin of its essential natural lipids. What truly elevates this cleanser above standard drugstore options is the inclusion of a high-quality emollient complex. Squalane, a highly refined botanical lipid that mimics the skin’s natural sebum, plays a crucial role in replenishing the moisture barrier during the wash. The addition of nutrient-dense oils, including Sweet Almond Oil, Apricot Kernel Oil, and Avocado Oil, provides a luxurious, nourishing touch. These oils offer a rich source of vitamins and essential fatty acids that leave the complexion feeling remarkably soft and supple rather than tight or parched. Furthermore, the presence of Tocopherol (Vitamin E) and Ascorbyl Glucoside (a stable Vitamin C derivative) provides a subtle antioxidant boost, though their primary role in a rinse-off product is often to stabilize the formula and protect the oils from oxidation. The inclusion of Glycerin ensures that humectant hydration is locked in, preventing the trans-epidermal water loss that can occur after cleansing. The pH balance is expertly managed through Citric Acid and Triethanolamine, ensuring the formula remains compatible with the skin’s natural acidity. However, despite its balanced nature, users with extremely sensitive skin or those with a specific clinical allergy to sulfates should exercise caution, as SLES can occasionally cause micro-irritation for the most reactive skin profiles. For the vast majority of users, this is an exemplary all-rounder cleanser that leaves the face feeling thoroughly purified, refreshed, and comfortably hydrated. It serves as an ideal first or second step in a multi-stage routine, bridging the gap between clinical cleanliness and botanical care.

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Ingredient Evaluation

📁 Solvents / 溶剂

🧪 Aqua/Water / 水

Purpose: Main solvent and base for the formula

Concerns: None

Notes: The most common ingredient in skincare.

📁 Cleansing Agents & Surfactants / 表面活性剂和清洁剂

🧪 Sodium Laureth Sulfate / 月桂醇聚醚硫酸酯钠

Purpose: Primary surfactant for foaming and cleansing

Concerns: Can be drying or irritating for very sensitive or dry skin

Notes: Milder than Sodium Lauryl Sulfate but still a strong cleanser.

🧪 Decyl Glucoside / 癸基葡糖苷

Purpose: Mild non-ionic surfactant

Concerns: None

Notes: Plant-derived and very gentle on the skin.

🧪 Cocamidopropyl Betaine / 椰油酰胺丙基甜菜碱

Purpose: Amphoteric surfactant and foam booster

Concerns: Potential allergen for some individuals

Notes: Helps reduce irritation from stronger surfactants.

🧪 Disodium Cocoamphodiacetate / 椰油酰两性基二乙酸二钠

Purpose: Ultra-mild cleansing agent

Concerns: None

Notes: Commonly used in baby products and for sensitive skin.

🧪 Lauryl Glucoside / 月桂基葡糖苷

Purpose: Mild cleansing agent

Concerns: None

Notes: Biodegradable and skin-friendly surfactant.

🧪 PEG-7 Glyceryl Cocoate / PEG-7 椰油酸甘油酯

Purpose: Surfactant and superfatting agent

Concerns: Potential for contamination with impurities like 1,4-dioxane

Notes: Provides a smooth feel after rinsing.

📁 Humectants & Skin Conditioners / 保湿剂和护肤成分

🧪 Glycerin / 甘油

Purpose: Humectant to retain moisture

Concerns: None

Notes: A gold-standard ingredient for skin hydration.

🧪 Pentylene Glycol / 戊二醇

Purpose: Humectant and preservative booster

Concerns: Rare instances of contact dermatitis

Notes: Improves product spreadability and skin feel.

🧪 Hexylene Glycol / 己二醇

Purpose: Solvent and humectant

Concerns: Potential eye irritant

Notes: Helps thin the texture and moisturize.

🧪 Squalane / 角鲨烷

Purpose: Emollient and skin-identical oil

Concerns: None

Notes: Highly stable and non-comedogenic moisturizing oil.

🧪 Prunus Amygdalus Dulcis Oil/Sweet Almond Oil / 甜扁桃油

Purpose: Nourishing emollient

Concerns: Nut allergy awareness

Notes: Rich in fatty acids and vitamins.

🧪 Prunus Armeniaca Kernel Oil/Apricot Kernel Oil / 杏仁油

Purpose: Conditioning emollient

Concerns: None

Notes: Lightweight oil that softens skin.

🧪 Persea Gratissima Oil/Avocado Oil / 鳄梨油

Purpose: Deeply moisturizing oil

Concerns: None

Notes: Contains high amounts of Vitamin E and fatty acids.

🧪 Tocopherol / 生育酚

Purpose: Antioxidant (Vitamin E)

Concerns: None

Notes: Protects skin and stabilizes oils in the formula.

🧪 Ascorbyl Glucoside / 抗坏血酸葡糖苷

Purpose: Vitamin C derivative / Active

Concerns: None

Notes: More stable form of Vitamin C for brightening effects.

📁 Texture & Stability Enhancers / 质地和稳定性调节剂

🧪 Acrylates Copolymer / 丙烯酸(酯)类共聚物

Purpose: Thickener and film former

Concerns: Environmental concerns regarding microplastics

Notes: Provides texture and stabilizes the formula.

🧪 PEG-200 Hydrogenated Glyceryl Palmate / PEG-200 氢化甘油棕榈油酸酯

Purpose: Thickener and emulsifier

Concerns: Low concern for skin irritation

Notes: Helps give the cleanser a pleasant consistency.

🧪 Sodium Chloride / 氯化钠

Purpose: Viscosity builder

Concerns: None

Notes: Common table salt used to thicken surfactant systems.

🧪 Behenyl Alcohol / 山嵛醇

Purpose: Emulsion stabilizer and thickener

Concerns: None

Notes: A fatty alcohol that is not drying to the skin.

🧪 Distearyl Ether / 二硬脂基醚

Purpose: Skin conditioning and texture agent

Concerns: None

Notes: Adds a silky feel to the product.

🧪 Laureth-2 / 月桂醇聚醚-2

Purpose: Thickener and surfactant

Concerns: Ethoxylation concerns

Notes: Often used with SLES to adjust thickness.

📁 pH Adjusters & Preservatives / pH调节剂和防腐剂

🧪 Triethanolamine / 三乙醇胺

Purpose: pH adjuster

Concerns: Potential skin irritant and nitrosamine precursor

Notes: Used to neutralize acidic ingredients.

🧪 Sodium Hydroxide / 氢氧化钠

Purpose: pH adjuster

Concerns: Caustic in raw form, safe when neutralized in formula

Notes: Ensures the product’s pH is skin-compatible.

🧪 Citric Acid / 柠檬酸

Purpose: pH adjuster

Concerns: None

Notes: Derived from citrus fruits.

🧪 Phenoxyethanol / 苯氧乙醇

Purpose: Preservative

Concerns: Restricted usage concentration (1% max)

Notes: Effective against bacteria.

🧪 Sodium Benzoate / 苯甲酸钠

Purpose: Preservative

Concerns: Generally safe

Notes: Prevents fungal growth in the product.