Nexxus Therappe Ultimate Moisture Shampoo

This silicone-free, sulfate-based moisturizing shampoo is designed to provide effective cleansing while utilizing lightweight emollients to restore softness and manageability to dry hair.

Performance Rating: 7.7

This shampoo receives a 7.7/10 for performance because of its strong cleansing power and reliable lather. The primary surfactant system, consisting of Sodium Laureth Sulfate and Cocamidopropyl Betaine, effectively removes grease and dirt. Hair manageability is enhanced by Polyquaternium-10, which provides excellent wet-combing and anti-static benefits, while Caprylic/Capric Triglyceride acts as an emollient to prevent excessive dryness. Although highly functional, the deep-cleansing nature of this formula might be too aggressive for very dry, damaged, or color-treated hair.

Safety Rating: 6.3

The safety profile is rated 6.3/10 primarily due to potential irritants and contamination risks. Sodium Laureth Sulfate can be harsh and drying on sensitive skin. Furthermore, ethoxylated ingredients like PEG-6 Caprylic/Capric Glycerides and PEG-150 Pentaerythryl Tetrastearate carry a minor risk of contamination with impurities like 1,4-dioxane. The inclusion of Fragrance (Parfum) and Coumarin, a recognized allergen, increases the likelihood of scalp irritation and allergic contact dermatitis for sensitive users.

Final Rating: 6.9

The final rating of 6.9/10 reflects a typical commercial shampoo that prioritizes high-foaming performance and cost-effectiveness over ultra-mild ingredient safety. It performs well as an everyday cleanser for normal to oily hair types, but the inclusion of sulfates, PEGs, and fragrance allergens like Coumarin makes it less ideal for consumers seeking clean, organic, or hypoallergenic hair care solutions.

Verdict

This shampoo offers a well-engineered balance between deep, effective cleansing and lightweight conditioning, making it a standout choice for those looking to rescue dry or dull hair without the heavy buildup of silicones. By formulating this product as silicone-free, the brand ensures that the hair retains its natural bounce, movement, and volume, rather than being weighed down by synthetic film-formers that can accumulate over time. At the core of its cleansing power is Sodium Laureth Sulfate (SLES). While sulfates sometimes get a bad reputation in modern haircare, SLES is a much milder and less irritating alternative to traditional Sodium Lauryl Sulfate (SLS). It creates a rich, luxurious lather that effortlessly removes dirt, excess sebum, and stubborn styling product residue. To temper the potential drying effects of SLES, the formula incorporates Cocamidopropyl Betaine, a gentle co-surfactant that cushions the scalp and softens the overall wash experience. The true magic of this formulation lies in its moisturizing and detangling system. Instead of relying on heavy silicones, it utilizes Caprylic/Capric Triglyceride—a lightweight emollient derived from coconut oil and glycerin—to replenish the hair’s natural lipids. This is paired with Polyquaternium-10, a cationic conditioning agent that selectively binds to damaged, negatively charged areas of the hair shaft. This combination dramatically improves wet-combing, reduces friction, and helps control frizz, making hair up to four times easier to detangle. Additionally, Citric Acid is used to balance the pH, helping to seal the hair cuticle, lock in moisture, and boost natural shine, while Glycol Distearate gives the shampoo its creamy, pearlescent texture. Furthermore, the addition of Sodium Gluconate and Disodium EDTA acts as a powerful chelating duo, neutralizing harsh minerals found in hard water to prevent dullness and maintain hair vibrancy. However, the formula is not without its drawbacks. Because it contains SLES, it may still feel slightly too stripping for individuals with severely compromised, ultra-dry, or highly porous hair. Additionally, those with sensitive scalps or conditions like eczema and psoriasis should exercise caution. The inclusion of Fragrance (Parfum) and Coumarin (a known fragrance allergen) can trigger contact irritation or redness in sensitive individuals. Overall, this is an excellent, professional-grade daily shampoo for normal-to-dry hair types. It successfully delivers a salonesque clean that leaves hair feeling touchably soft, refreshed, and highly manageable, provided your scalp is not overly sensitive to sulfates or added fragrances.

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Ingredient Evaluation

📁 Solvents / 溶剂

🧪 WATER (AQUA) / 水

Purpose: Solvent and primary carrier for all other ingredients.

Concerns: None.

Notes: It makes up the bulk of the shampoo formula (usually 70-80%).

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

🧪 SODIUM LAURETH SULFATE / 月桂醇聚醚硫酸酯钠

Purpose: Primary anionic surfactant used for foaming and strong cleansing.

Concerns: Can be drying or irritating to sensitive skin/scalps. Potential risk of 1,4-dioxane contamination during manufacturing.

Notes: Gentler than Sodium Lauryl Sulfate (SLS), but still a very effective and strong cleanser.

🧪 COCAMIDOPROPYL BETAINE / 椰油酰胺丙基甜菜碱

Purpose: Amphoteric co-surfactant to boost foam and reduce skin irritation caused by anionic surfactants.

Concerns: May cause allergic contact dermatitis in sensitive individuals, usually due to manufacturing impurities.

Notes: Extremely common and mild surfactant used in baby and gentle personal care products.

🧪 COCAMIDE MEA / 椰油酰胺 MEA

Purpose: Foam booster, stabilizer, and thickener.

Concerns: May contain trace residual amines which can react to form nitrosamines (suspected carcinogens).

Notes: Typically added in small amounts to enhance foam quality and density.

📁 Hair Conditioning Agents & Emollients / 头发调理剂和润肤剂

🧪 CAPRYLIC/CAPRIC TRIGLYCERIDE / 辛酸/癸酸甘油三酯

Purpose: Emollient and hair conditioning agent derived from coconut oil and glycerin.

Concerns: Highly safe with minimal risk of irritation or clogging.

Notes: Provides lightweight moisturization and hair softness without feeling heavy or greasy.

🧪 POLYQUATERNIUM-10 / 聚季铵盐-10

Purpose: Cationic conditioning polymer that reduces static, improves combability, and leaves a smooth film on hair.

Concerns: Can cause product buildup on hair over time if used continuously, requiring occasional use of a clarifying shampoo.

Notes: A very popular ingredient in repairing and conditioning shampoos.

🧪 PEG-6 CAPRYLIC/CAPRIC GLYCERIDES / PEG-6 辛酸/癸酸甘油酯类

Purpose: Hydrophilic emollient, mild cleansing agent, and solubilizer.

Concerns: Ethoxylation process can leave trace impurities like ethylene oxide and 1,4-dioxane.

Notes: Helps emulsify oil-based ingredients into water and provides a smooth texture.

📁 Thickening & Viscosity Controlling Agents / 增稠剂和粘度控制剂

🧪 GLYCOL DISTEARATE / 乙二醇双硬脂酸酯

Purpose: Opacifying agent to provide a pearlescent appearance and act as a mild emollient.

Concerns: Generally safe and non-irritating.

Notes: Used primarily for aesthetic appeal, giving the shampoo its classic creamy, pearly look.

🧪 SODIUM CHLORIDE / 氯化钠

Purpose: Viscosity adjuster, used to thicken surfactant-based formulas.

Concerns: Can be drying to the hair and scalp in high concentrations, and may degrade professional hair treatments.

Notes: Commonly known as table salt; used as a cheap and highly effective thickener.

🧪 PPG-7 / PPG-7

Purpose: Viscosity controlling agent and hair conditioner.

Concerns: Minimal safety concerns, though it is a synthetic polyglycol which may contain trace impurities.

Notes: Helps modify product flow and spreadability.

🧪 PEG-150 PENTAERYTHRITYL TETRASTEARATE / PEG-150 季戊四醇四硬脂酸酯

Purpose: Highly efficient thickener and rheology modifier.

Concerns: Trace risk of ethoxylation impurities (1,4-dioxane and ethylene oxide).

Notes: Provides an luxurious, thick texture to the cleansing system without reducing foam.

🧪 PPG-2 HYDROXYETHYL COCAMIDE / PPG-2 羟乙基椰油酰胺

Purpose: Non-ionic co-surfactant and thickening agent that boosts foam stability.

Concerns: Low hazard, though has typical synthetic PEG/PPG manufacturing impurity concerns.

Notes: Often used as a safer alternative to DEA-based thickeners (e.g., Cocamide DEA).

📁 Preservatives, Chelating Agents & pH Adjusters / 防腐剂、螯合剂和pH调节剂

🧪 SODIUM GLUCONATE / 葡萄糖酸钠

Purpose: Chelating agent used to bind metal ions and prevent formula degradation.

Concerns: Extremely safe and biodegradable.

Notes: A natural, renewable alternative to synthetic chelating agents like EDTA.

🧪 CITRIC ACID / 柠檬酸

Purpose: pH adjuster to match the shampoo’s acidity with the natural pH of the scalp.

Concerns: Can cause mild irritation if it gets directly in the eyes.

Notes: Naturally occurring organic acid derived from citrus fruits.

🧪 SODIUM BENZOATE / 苯甲酸钠

Purpose: Preservative to inhibit yeast, mold, and bacterial growth.

Concerns: Generally safe. Can form trace benzene if combined with Vitamin C, but very rare and highly regulated in cosmetics.

Notes: A widely accepted food-grade preservative that is highly effective in slightly acidic formulations.

🧪 DISODIUM EDTA / 乙二胺四乙酸二钠

Purpose: Chelating agent that binds metal ions to improve product stability and foam quality.

Concerns: Poor environmental biodegradability, though completely safe for skin use.

Notes: Acts as a preservative booster by making microbes more vulnerable.

📁 Fragrances / 香精和香料

🧪 FRAGRANCE (PARFUM) / 香精

Purpose: Scent formulation used to provide a pleasant aroma.

Concerns: High risk of skin sensitization and allergic reactions for sensitive scalps.

Notes: An umbrella term for a blend of natural and synthetic scent ingredients.

🧪 COUMARIN / 香豆素

Purpose: Fragrance allergen that adds a sweet, vanilla-like or fresh hay scent.

Concerns: Known fragrance allergen. Must be declared in ingredient lists (e.g., in the EU) if concentrations exceed 0.01% in rinse-off products.

Notes: Naturally found in tonka beans, cassia cinnamon, and woodruff, but often synthetically produced for cosmetics.