Mrs. Meyer’s Basil Dish Soap

This is a biodegradable, plant-derived dish soap infused with natural essential oils and soothing aloe vera to effectively cut through grease while leaving a refreshing basil aroma.

Performance Rating: 8.7

The excellent 8.7/10 performance rating is driven by a powerful surfactant system. Sodium Lauryl Sulfate (SLS) and Lauramine Oxide act as highly effective primary grease-cutters and foam stabilizers, ensuring rich, long-lasting suds. They are paired with gentle yet effective non-ionic co-surfactants, Caprylyl/Capryl Glucoside and Lauryl Glucoside, which assist in lifting stubborn food particles. Additionally, Citric Acid helps break down hard water minerals, while Sodium Chloride ensures a thick, easy-to-dispense viscosity.

Safety Rating: 4.7

The low 4.7/10 safety rating is primarily due to the inclusion of Methylisothiazolinone (MIT) and Benzisothiazolinone (BIT), which are strong synthetic preservatives known to be potent skin sensitizers and common triggers for contact dermatitis. Furthermore, Sodium Lauryl Sulfate (SLS) can be highly drying and irritating to the skin. The presence of Fragrance, botanical essential oils, and aromatic allergens like Geraniol and Linalool further increases the risk of allergic reactions, despite the soothing presence of Glycerin and Aloe Barbadensis Leaf Juice.

Final Rating: 6.5

With a 6.5/10 final rating, this dish soap represents a compromise between exceptional cleaning efficiency and significant skin irritation risks. Its formulation guarantees highly effective grease removal, making it a reliable option for tough kitchen messes. However, because of the sensitizing preservatives (MIT and BIT) and potential allergens, users with sensitive skin or eczema should exercise caution or wear gloves during use.

Verdict

This formulation represents a highly popular, biodegradable, plant-derived dish soap that masterfully balances robust cleaning power with a pleasing sensory experience. The backbone of its cleaning efficacy relies on a blend of anionic, non-ionic, and amphoteric surfactants. Specifically, Sodium Lauryl Sulfate (SLS) serves as the primary cleaning agent, offering superb grease-cutting capabilities and heavy-duty performance on stubborn food residues. To soften the harshness typically associated with SLS, the formula incorporates milder, plant-derived co-surfactants such as Caprylyl/Capryl Glucoside, Lauryl Glucoside, and Lauramine Oxide. This clever surfactant synergy ensures that the soap creates a rich, stable lather that holds up during a long sink session without immediately drying out your hands. Speaking of skin comfort, the addition of Glycerin and Aloe Barbadensis Leaf Juice acts as a much-needed defense barrier. These ingredients provide essential hydration and soothing properties, helping to replenish the skin’s natural moisture barrier which is often stripped away during manual dishwashing. However, despite these nourishing additions, the soap’s overall profile may still be too harsh for those with highly reactive skin. One of the product’s major selling points is its distinctive, fresh scent profile. By blending synthetic fragrance with natural essential oils—specifically Basil Oil, Parsley Seed Oil, and Black Pepper Seed Oil—the soap transforms a mundane chore into an aromatic, therapeutic experience. However, this aromatic blend carries natural fragrance allergens like Geraniol and Linalool. While pleasant for most, these compounds can trigger allergic reactions in sensitive individuals. The most significant drawback of this formulation lies in its preservation system. It utilizes Benzisothiazolinone and Methylisothiazolinone (MIT) to prevent microbial growth. MIT, in particular, is a well-known sensitizing allergen linked to contact dermatitis. Regular exposure to these preservatives, combined with the stripping nature of SLS, makes this dish soap a poor choice for anyone suffering from eczema, cracked skin, or severe allergies. In conclusion, this dish soap is an excellent, high-performing choice for the average household looking for a plant-based, beautifully scented cleaner that easily tackles tough grease. However, if you have sensitive skin or a history of allergic contact dermatitis, you would be better off choosing a fragrance-free, SLS-free, and MIT-free alternative.

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Ingredient Evaluation

📁 Solvent / 溶剂

🧪 Water / 水

Purpose: Acts as a carrier or solvent to dissolve other cleaning ingredients and provide the liquid base.

Concerns: None.

Notes: Typically the highest-percentage ingredient in liquid dish soaps.

📁 Surfactants and Cleansing Agents / 表面活性剂与清洁剂

🧪 Sodium Lauryl Sulfate / 十二烷基硫酸钠

Purpose: Primary surfactant that cuts through grease, removes food residues, and creates rich foam.

Concerns: Can cause skin dryness and irritation, particularly for individuals with sensitive skin.

Notes: Often derived from natural fats like palm or coconut oil, but can be synthetic.

🧪 Caprylyl/Capryl Glucoside / 辛基/癸基葡糖苷

Purpose: A mild, non-ionic surfactant used for gentle cleansing and to help solubilize fragrance oils.

Concerns: Very low potential for skin irritation; generally safe and highly biodegradable.

Notes: A plant-derived surfactant made from glucose and fatty alcohols.

🧪 Lauramine Oxide / 月桂酰胺氧化物

Purpose: A co-surfactant that stabilizes and boosts foam, helping maintain active suds during washing.

Concerns: May cause mild skin or eye irritation in high concentrations.

Notes: Commonly used in hand dishwashing liquids to maintain bubble stability.

🧪 Lauryl Glucoside / 月桂基葡糖苷

Purpose: A very mild, plant-derived surfactant that assists in cleaning, foaming, and viscosity building.

Concerns: Excellent safety profile with extremely low risk of irritation or sensitization.

Notes: Biodegradable surfactant typically produced from corn starch and coconut oil.

📁 Skin Conditioners and Humectants / 皮肤调理剂与保湿剂

🧪 Glycerin / 甘油

Purpose: A humectant that attracts moisture to the skin, helping to counteract the drying effect of surfactants.

Concerns: No known concerns; highly safe and skin-compatible.

Notes: Keeps hands soft and hydrated while doing dishes.

🧪 Aloe Barbadensis Leaf Juice / 库拉索芦荟叶汁

Purpose: Skin conditioning agent that provides soothing and moisturizing benefits.

Concerns: Very low; occasional mild allergic reactions in rare individuals sensitive to aloe.

Notes: Often added to formula variants marketed as gentle on hands.

📁 Fragrances and Essential Oils / 香精与天然精油

🧪 Fragrance / 香精

Purpose: Provides a pleasant aroma to mask base raw material scents and enhance user experience.

Concerns: May contain ingredients that trigger allergic skin reactions or respiratory sensitivity.

Notes: Usually a proprietary blend of synthetic and/or natural aroma chemicals.

🧪 Geraniol / 香叶醇

Purpose: Fragrance constituent that adds a sweet, rose-like floral note.

Concerns: A recognized allergen that can cause contact dermatitis in sensitive individuals.

Notes: Naturally present in many essential oils and must be declared in certain regions.

🧪 Linalool / 芳樟醇

Purpose: Fragrance constituent that adds a fresh floral, lavender-like scent.

Concerns: Can become a sensitizer when oxidized, potentially causing skin irritation.

Notes: A naturally occurring terpene alcohol found in many flower and spice plants.

🧪 Ocimum Basilicum (Basil) Oil / 罗勒油

Purpose: Natural essential oil used to impart a fresh, herbal, and spicy aromatic profile.

Concerns: Can cause skin sensitization or irritation if used in high concentrations.

Notes: Extracted from basil leaves and contains natural antimicrobial properties.

🧪 Carum Petroselinum (Parsley) Seed Oil / 欧芹籽油

Purpose: Natural essential oil used for its green, earthy scent.

Concerns: Low risk of irritation, but can cause mild sensitization in highly reactive skin.

Notes: Steam-distilled from parsley seeds.

🧪 Piper Nigrum (Black Pepper) Seed Oil / 黑胡椒籽油

Purpose: Natural essential oil that adds a warm, spicy, and woody note to the fragrance.

Concerns: May cause mild skin irritation or sensitization under prolonged exposure.

Notes: Provides depth and unique character to herbal fragrance blends.

📁 pH Adjusters and Viscosity Modifiers / pH调节剂与粘度调节剂

🧪 Citric Acid / 柠檬酸

Purpose: An organic acid used to balance and adjust the pH of the dish soap to make it skin-compatible.

Concerns: Concentrated forms can irritate eyes and skin, but completely safe at typical product levels.

Notes: Naturally found in citrus fruits and also acts as a mild chelator.

🧪 Sodium Chloride / 氯化钠

Purpose: Common salt, used as a thickening agent to adjust product viscosity for a rich, pouring texture.

Concerns: None at formulation levels.

Notes: Works in synergy with anionic surfactants like SLS to build thickness.

📁 Preservatives / 防腐剂

🧪 Benzisothiazolinone / 苯并异噻唑啉酮

Purpose: A broad-spectrum preservative that prevents bacterial, yeast, and mold growth in the water-based formula.

Concerns: A known skin irritant and sensitizer that can cause contact allergies.

Notes: Commonly abbreviated as BIT, it is restricted to low, safe thresholds in household products.

🧪 Methylisothiazolinone / 甲基异噻唑啉酮

Purpose: A powerful preservative used to prevent microbiological spoilage during storage and use.

Concerns: A strong skin sensitizer associated with allergic contact dermatitis.

Notes: Commonly abbreviated as MIT, its use is heavily restricted in cosmetics but allowed in rinse-off cleaning products within strict limits.