Persil Intense Fresh Liquid Detergent

This is a highly effective, premium liquid laundry detergent formulated with a quad-enzyme blend and advanced surfactants to aggressively target tough stains and brighten fabrics.

Performance Rating: 9.4

This formula achieves an outstanding performance rating of 9.4/10 due to its exceptionally robust and comprehensive cleaning system. It features a heavy-duty surfactant blend consisting of sodium laureth sulfate, laureth-12, sodium C10-16 alkylbenzenesulfonate, and sodium C12-18 alkyl ether sulfate, which work synergistically to lift tough grease and soils. Its performance is heavily boosted by a multi-enzyme cocktail containing protease, amylase, mannanase, and cellulase to target specific stains like proteins, starches, food gums, and to prevent fabric pilling. Additionally, polyethyleneimine alkoxylated acts as a powerful soil-suspension polymer to prevent redeposition, while tetrasodium EDTA and sodium citrate soften hard water to maximize cleaning efficiency. The inclusion of disodium distyrylbiphenyl disulfonate acts as an optical brightener to keep whites looking bright.

Safety Rating: 4.5

The safety rating of 4.5/10 is relatively low due to several ingredients that present health and environmental concerns. Sodium C10-16 alkylbenzenesulfonate (LAS) is a harsh surfactant known to cause skin irritation and is toxic to aquatic life. Ethoxylated surfactants like sodium laureth sulfate and sodium C12-18 alkyl ether sulfate carry a risk of contamination with 1,4-dioxane, a suspected carcinogen. The presence of synthetic fragrance poses a high risk of skin sensitization and allergic reactions. Furthermore, tetrasodium EDTA is a persistent chelator that does not easily biodegrade, raising environmental bioaccumulation concerns, while optical brighteners are similarly non-biodegradable and can cause contact dermatitis.

Final Rating: 7.0

The final rating of 7.0/10 represents a compromise between elite cleaning performance and moderate safety and environmental concerns. This detergent is highly effective at stain removal, fabric maintenance, and whitening, making it ideal for tough laundry challenges. However, the heavy reliance on synthetic surfactants, potential carcinogen byproducts, allergens like synthetic fragrance, and non-biodegradable ingredients significantly pulls down its overall score for consumers prioritizing green or skin-sensitive formulations.

Verdict

This formulation is a premium, high-performance liquid laundry detergent engineered to deliver exceptional cleaning power against a wide array of stubborn soils. At its core, the detergent utilizes a heavy-duty surfactant system containing sodium laureth sulfate (SLES), sodium C10-16 alkylbenzenesulfonate, and laureth-12. These anionic and nonionic surfactants work synergistically to break down oily, greasy, and particulate soils, lifting them from fabric fibers. To prevent these lifted soils from redepositing back onto clean clothes during the wash cycle, the formula is bolstered by an advanced polyethyleneimine alkoxylated polymer, ensuring that dirt is rinsed away completely. What truly elevates this detergent into the premium tier is its comprehensive quad-enzyme system. It features protease to tackle protein-based stains like blood and grass, amylase for starch-based food spills, mannanase to dissolve stubborn food gums, and cellulase. Cellulase is particularly valuable because it shears microfibrils from cotton fibers, which not only prevents fabric pilling and fuzzing but also restores color clarity and brightness to older garments. The inclusion of an optical brightener (disodium distyrylbiphenyl disulfonate) further enhances this effect, making whites appear dramatically brighter under natural light. However, while this detergent is a powerhouse for stain removal, its aggressive formulation presents significant drawbacks for certain users. The inclusion of sodium laureth sulfate and alkylbenzenesulfonate, paired with synthetic fragrance and denatured alcohol, makes this product a potential trigger for those with sensitive skin, eczema, or allergies. Optical brighteners are also known skin sensitizers that remain on the clothing fibers after washing. From an environmental standpoint, ingredients like tetrasodium EDTA and polymeric blue colorant are slow to biodegrade and may not appeal to eco-conscious consumers looking for green or plant-based alternatives. Overall, this is an outstanding choice for families dealing with heavily soiled clothes, activewear, and tough everyday stains, provided that skin sensitivity is not a primary concern.

Who Is This Product For?

Who Should Avoid This Product?

Ingredient Evaluation

📁 Solvents and Carriers / 溶剂与载体

🧪 water / 水

Purpose: Solvent and liquid carrier

Concerns: No known health or environmental concerns.

Notes: Acts as the base of the liquid formula to dissolve other ingredients.

🧪 propylene glycol / 丙二醇

Purpose: Solvent, viscosity controller, and enzyme stabilizer

Concerns: Low general toxicity; can cause mild skin irritation in individuals with sensitive skin at high concentrations.

Notes: Helps maintain product stability and prevents freezing during transport or storage.

🧪 Alcohol denat. / 变性乙醇

Purpose: Solvent and viscosity controlling agent

Concerns: Can be drying to the skin in concentrated exposure; denaturants are added to make it undrinkable.

Notes: Helps ingredients dissolve properly and aids in maintaining formula clarity.

📁 Surfactants / 表面活性剂

🧪 sodium laureth sulfate / 月桂醇聚醚硫酸酯钠

Purpose: Anionic surfactant / cleaning agent

Concerns: Can cause skin and eye irritation. May contain trace amounts of the manufacturing byproduct 1,4-dioxane, a potential carcinogen.

Notes: Commonly abbreviated as SLES. Highly effective at lifting oil and dirt from fabrics.

🧪 laureth-12 / 月桂醇聚醚-12

Purpose: Nonionic surfactant / emulsifying agent

Concerns: Mild potential for skin irritation; risk of trace 1,4-dioxane contamination from ethoxylation process.

Notes: Excellent at removing greasy soils and works well in various water temperatures.

🧪 sodium C10-16 alkylbenzenesulfonate / C10-16 烷基苯磺酸钠

Purpose: Anionic surfactant / heavy-duty cleaning agent

Concerns: Can cause skin and eye irritation; toxic to aquatic organisms in concentrated form.

Notes: One of the most widely used surfactants for soil removal in laundry detergents.

🧪 sodium C12-18 alkyl ether sulfate / C12-18 烷基醚硫酸钠

Purpose: Anionic surfactant / cleaning agent

Concerns: Skin and eye irritant in high concentrations; potential trace 1,4-dioxane contamination.

Notes: Provides high foaming and excellent soil removal properties.

🧪 Fatty Acids, C8-18 and C18-Unsaturated Sodium Salts / C8-18及C18不饱和脂肪酸钠盐

Purpose: Anionic surfactant / soap / suds suppressor

Concerns: Very low toxicity; fully biodegradable.

Notes: Acts as natural soap, aiding cleaning while helping control excess foam during the wash.

📁 Builders and pH Regulators / 助洗剂与酸碱调节剂

🧪 sodium citrate / 柠檬酸钠

Purpose: Builder / chelating agent and pH buffer

Concerns: Minimal safety or environmental concerns; readily biodegradable.

Notes: Softens hard water by binding calcium and magnesium ions, which improves surfactant performance.

🧪 sodium metaborate / 偏硼酸钠

Purpose: pH buffer and enzyme stabilizer

Concerns: Borates are under scrutiny for potential reproductive toxicity if ingested in high amounts; low risk in standard household detergent use.

Notes: Maintains the alkaline pH necessary for washing and helps keep enzymes stable in liquid form.

🧪 tetrasodium EDTA / 乙二胺四乙酸四钠

Purpose: Chelating agent / water softener

Concerns: Slow to biodegrade; can persist in the environment and remobilize heavy metals in water systems.

Notes: Prevents minerals in hard water from interfering with cleaning efficiency.

🧪 sodium formate / 甲酸钠

Purpose: Enzyme stabilizer and pH buffer

Concerns: Low toxicity and low environmental impact at consumer use levels.

Notes: Specifically works with calcium ions in the formula to keep enzymes inactive until diluted in wash water.

📁 Enzymes / 酶制剂

🧪 protease enzyme / 蛋白酶

Purpose: Breaks down protein-based stains

Concerns: Can cause respiratory sensitization or irritation if inhaled as dry dust, but minimal risk in liquid laundry detergents.

Notes: Targets organic stains such as blood, grass, egg, and gravy.

🧪 amylase enzyme / 淀粉酶

Purpose: Breaks down starch-based stains

Concerns: Potential allergen/sensitizer, though highly safe in liquid formulation.

Notes: Targets food stains like pasta, chocolate, baby food, and gravies.

🧪 cellulase enzyme / 纤维素酶

Purpose: Fabric care and color rejuvenation

Concerns: Potential allergen/sensitizer, though minimal risk in liquid detergent.

Notes: Cleaves micro-fibrils on cotton fibers to prevent pilling, keeping fabrics smooth and colors looking bright.

🧪 mannanase enzyme / 甘露聚糖酶

Purpose: Breaks down mannan-based stains

Concerns: Potential allergen/sensitizer; low risk during typical laundry use.

Notes: Targets stains from food thickeners and gums, which are common in ice cream, sauces, and cosmetics.

📁 Performance Additives and Polymers / 性能添加剂与聚合物

🧪 polyethyleneimine alkoxylated / 烷氧基化聚乙烯亚胺

Purpose: Soil release polymer / anti-redeposition agent

Concerns: May have low-to-moderate toxicity to aquatic life depending on specific molecular weight and structure.

Notes: Prevents dirt that has been washed off clothes from settling back onto the fabrics during the wash cycle.

🧪 disodium distyrylbiphenyl disulfonate / 联苯乙烯二苯基二磺酸二钠

Purpose: Optical brightener / fluorescent whitening agent

Concerns: Slow to biodegrade; can cause skin irritation in highly sensitive individuals; toxic to aquatic organisms.

Notes: Absorbs invisible ultraviolet light and emits blue light, making fabrics appear whiter and brighter.

🧪 Dimethicone / 聚二甲基硅氧烷

Purpose: Antifoaming agent / defoamer

Concerns: Can be persistent in the environment; low human toxicity.

Notes: Controls and suppresses excess foam during the washing cycle, preventing machine overflow.

📁 Aesthetics / 感官调理剂

🧪 Fragrance / 香精

Purpose: Scenting agent

Concerns: A common cause of skin irritation and contact allergies; may contain undisclosed fragrance sensitizers.

Notes: Provides a pleasant scent to the detergent and leaves a fresh aroma on washed clothes.

🧪 POLYMERIC COLORANT - BLUE / 蓝色聚合着色剂

Purpose: Product colorant

Concerns: Minimal toxicological concerns; used in very low concentrations.

Notes: Gives the liquid detergent its blue color to enhance visual appeal for consumers.