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Hydra Matrix Polyglutamic Acid Professional Shampoo by Tresemmé — product pack

Pack image shown to identify the product. Decode Label is independent of Tresemmé and is not sponsored or endorsed by it. Trademarks

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Tresemmé

Hydra Matrix Polyglutamic Acid Professional Shampoo

haircare
3.5 Concerning

Decode Label Safety Score

Ingredient safety · 55% 3.4/10
Processing · 15% 3.5/10
Marketing · 30% 5.6/10
How we got 3.5 Show
Weighted score 4.0/10
Capped — Contains an isothiazolinone contact sensitizer — MCI/MI (EU SCCS) ≤ 3.5
Also flagged
Primary surfactant with recognised irritation potential (EU SCCS) High load of declared fragrance allergens (EU-listed)
Final score 3.5/10 · Concerning

Methodology v3.1 (updated 8 Oct 2026) — what changed

The score is capped for a specific safety reason, set out below. This shampoo contains several ingredients that warrant caution, particularly for individuals with sensitive skin or fragrance allergies. The presence of Methylchloroisothiazolinone and Methylisothiazolinone, potent contact sensitizers, is a significant concern, even in a rinse-off product where their concentration is restricted by EU regulations. The product also includes Sodium Laureth Sulfate, a surfactant known for its potential to cause skin irritation, and a high load of declared fragrance allergens (Coumarin, Geraniol, Hexyl Cinnamal, Linalool) which are common triggers for contact dermatitis. While the product is designed to be rinsed off, minimizing exposure time, these ingredients still pose a risk for susceptible individuals. Those with known sensitivities to isothiazolinones or fragrance allergens should exercise caution.

At a glance

From the declared label — not a lab test

Findings to weigh

Score limiter Contains an isothiazolinone contact sensitizer — MCI/MI (EU SCCS) See which concerns held the score down. → Ingredient · high-priority finding Methylchloroisothiazolinone Preservative — potent contact sensitiser; banned from EU leave-on products → Ingredient · worth noting Sodium Laureth Sulfate Surfactant — can irritate sensitive skin; may carry a 1,4-dioxane impurity → Ingredient · worth noting COUMARIN Named fragrance allergen - the EU requires it to be declared separately →

What’s favorable

  • Glycerin
  • Guar Hydroxypropyltrimonium Chloride

Contains potent sensitizers and multiple fragrance allergens; primary surfactant can irritate

The score is capped for a specific safety reason, set out below. This shampoo contains Methylchloroisothiazolinone and Methylisothiazolinone, preservatives known as strong contact sensitizers, which are restricted in rinse-off cosmetics. It also includes Sodium Laureth Sulfate, a surfactant that can irritate sensitive skin, and several declared fragrance allergens. These ingredients are most relevant to people with sensitive skin, fragrance allergies or or contact dermatitis.

Consider this product carefully if you are

  • Avoiding certain additives or colours — Methylchloroisothiazolinone is declared.
Okay for: Individuals without known skin sensitivities or allergies

Personal check · free

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Just checking whether the product is safe? The analysis above is yours, no account needed. To know if it is safe for you, your father or your child, add a profile and we check this label against them.

  • Ingredients you avoid. Sulphates, parabens, silicones, fragrance, drying alcohol, PEGs and more.
  • Sensitivities. Sensitive skin, hormonal considerations, pregnancy.
  • Skin and hair goals. Acne, dryness, ageing, hair fall, dandruff: what the label declares for each.
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Concern breakdown What drives the score, concern by concern · score out of 10, higher = fewer concerns
Key risks: Contains an isothiazolinone contact sensitizer — MCI/MI (EU SCCS) Methylchloroisothiazolinone Sodium Laureth Sulfate COUMARIN PEG-45M +2 more

Concern breakdown

Score out of 10 · higher = fewer concerns

How this product performs on each concern we check for haircare. This is a breakdown of the same evidence behind the score above — not a separate verdict.

Preservative Safety Significant concern · 2.0/10
Fragrance & Allergen Load Significant concern · 3.0/10
Harsh Surfactants & Irritants Moderate concern · 4.0/10
Irritant & Sensitising Actives No concern identified · 8.0/10
Endocrine-Active Ingredients No concern identified · 8.0/10
Carcinogen & Contaminant Risk No concern identified · 8.0/10
Label Transparency No concern identified · 8.0/10

Why the score is capped

Contains an isothiazolinone contact sensitizer — MCI/MI (EU SCCS)

Rule PC-CAP-15

Primary surfactant with recognised irritation potential (EU SCCS)

Rule PC-CAP-05

High load of declared fragrance allergens (EU-listed)

Rule PC-CAP-03

What's good

Contains Glycerin for hydration

Includes Guar Hydroxypropyltrimonium Chloride for hair conditioning

Watch out for

Potent contact sensitizers (Methylchloroisothiazolinone, Methylisothiazolinone)

Primary surfactant with irritation potential (Sodium Laureth Sulfate)

Undisclosed fragrance blend ('Perfume')

Multiple declared fragrance allergens (Coumarin, Geraniol, Hexyl Cinnamal, Linalool)

Cocamidopropyl Betaine, a recognized contact allergen

PEG-45M — ethoxylated ingredient - quality depends on removal of manufacturing impurities.

Disodium EDTA — disodium EDTA is a chelating agent that keeps a product stable and clear. It has been flagged in some studies for potential endocrine-disrupting properties; regulatory consensus is not yet established, so it is noted as a low-level concern rather than a confirmed hazard.

Ingredient Concerns safety database

Sources cited below may be Indian (FSSAI) or international (EU, US, WHO, IARC) — an international classification or law is evidence, not an Indian regulatory finding.

Methylisothiazolinone

MI and its chlorinated partner MCI are preservatives and recognised contact sensitisers. After MI replaced parabens in many products, European dermatology clinics recorded a sharp rise in contact allergy to it. Contact allergy, once acquired, is usually long-lasting, so people already sensitised to MI are advised to avoid it. EU rules ban MI from leave-on cosmetics (since 2017) and limit it to 15 ppm in rinse-off products. Whether a particular product causes a reaction depends on the person, the concentration and the contact time, which the label alone cannot show.

Regulatory & scientific authority Source: EU Regulation 2017/1224; SCCS Opinion SCCS/1521/13; British Journal of Dermatology (MI epidemic)

Methylisothiazolinone: regulation, sources and other products →

Sodium Laureth Sulfate

SLES is a cleansing agent that is milder than SLS but can still irritate very sensitive or compromised skin. Separately, because it is made by ethoxylation, it may carry a residue of 1,4-dioxane, which IARC classifies as possibly carcinogenic to humans (Group 2B). The ingredient list cannot show whether any is present or how much. The EU SCCS considers 1,4-dioxane at or below 10 ppm in a finished cosmetic to be safe, and manufacturers reduce it by vacuum stripping.

Regulatory & scientific authority Source: FDA; EU SCCS

Sodium Laureth Sulfate: regulation, sources and other products →

Fragrance Allergens (EU-listed)

These are individual fragrance components that are known contact allergens. EU rules require them to be named on the label when present above 0.001% (leave-on) or 0.01% (rinse-off), because "parfum" alone would hide them. Limonene and linalool are especially common and become more allergenic as they oxidise on exposure to air. This is a risk for people who are sensitised, not a general-population hazard.

Regulatory & scientific authority Source: EU Regulation 2023/1545 (extended fragrance-allergen labelling); SCCS opinions on fragrance allergens

Fragrance Allergens (EU-listed): regulation, sources and other products →

Fragrance

"Fragrance" or "parfum" is a catch-all term that can conceal a blend of hundreds of undisclosed chemicals, including known allergens, sensitisers, and potential endocrine disruptors. The EU now mandates disclosure of 82 specific fragrance allergens. People with fragrance sensitivity, asthma, or contact dermatitis should prefer fragrance-free products.

Regulatory & scientific authority Source: EU Regulation 2023/1545; IFRA

Fragrance: regulation, sources and other products →

Cocamidopropyl Betaine

Cocamidopropyl betaine is the usual "gentle" co-surfactant in shampoos, face washes and baby washes. It was named Allergen of the Year by the American Contact Dermatitis Society in 2004; the reactions are attributed mainly to impurities (amidoamine, DMAPA) and are uncommon, but it is a common cause of surfactant allergy in people with eczema.

Peer-reviewed research Source: American Contact Dermatitis Society - Allergen of the Year 2004; contact-dermatitis literature

Cocamidopropyl Betaine: regulation, sources and other products →

Polyethylene Glycols (PEGs)

PEG ingredients are made by ethoxylation, which can leave traces of ethylene oxide (IARC Group 1) and 1,4-dioxane (IARC Group 2B) unless removed. Good manufacturing removes them, so the ingredient itself is not a hazard, but the label cannot tell you whether it was done well. PEGs should not be applied to broken skin.

Regulatory & scientific authority Source: IARC Monographs Vol. 100F (ethylene oxide) and Vol. 71 (1,4-dioxane); Cosmetic Ingredient Review

Polyethylene Glycols (PEGs): regulation, sources and other products →

Decode Label Analysis

Contains Methylchloroisothiazolinone and Methylisothiazolinone, potent contact sensitizers restricted in rinse-off cosmetics by EU regulations due to their high sensitization potential.

Contains Sodium Laureth Sulfate, a primary surfactant that can irritate sensitive skin and may carry a 1,4-dioxane impurity (IARC Group 2B, possibly carcinogenic to humans), though SCCS considers ≤10 ppm safe in finished cosmetics.

Contains 'Perfume' (undisclosed fragrance blend), a common source of allergens and sensitizers, which raises transparency concerns.

Contains multiple declared fragrance allergens (Coumarin, Geraniol, Hexyl Cinnamal, Linalool), which are common triggers for contact dermatitis in sensitive individuals.

Contains Cocamidopropyl Betaine, a mild surfactant that is a recognized contact allergen, primarily due to manufacturing impurities.

Claim check

1 claim not supported by label data

Front-of-pack marketing claims checked against this product's actual ingredients and nutrition. "Can't verify" means the label does not provide enough information to check the claim — it is not the same as the claim being false.

x
"Polyglutamic Acid" Contradicted by label data

Polyglutamic Acid is not listed anywhere in the ingredients.

Polyglutamic Acid is not in the ingredient list
?
"5X Hydration" Can't verify

The label does not provide information or data to substantiate the claim of "5X Hydration".

No data on 5X Hydration
?
"Fuller, Fluid Hair" Can't verify

The label does not provide information or data to substantiate the claim of "Fuller, Fluid Hair".

No data on Fuller, Fluid Hair
?
"Professional Shampoo" Can't verify

The term "Professional Shampoo" is a designation that cannot be verified from the ingredient list.

Professional Shampoo (designation)

Read straight from the back-of-pack photo — quantities, sections and any disguised terms, so the small print can’t hide behind the marketing.

  • 1.
    Water
    WATER
  • 2.
    Sodium Laureth Sulfate
    SODIUM LAURETH SULFATE
  • 3.
    Dimethiconol
    DIMETHICONOL
  • 4.
    Cocamidopropyl Betaine
    COCAMIDOPROPYL BETAINE
  • 5.
    Sodium Chloride
    SODIUM CHLORIDE
  • 6.
    Perfume undisclosed fragrance
    PERFUME
  • 7.
    Glycerin
    GLYCERIN
  • 8.
    Carbomer
    CARBOMER
  • 9.
    Glycol Distearate
    GLYCOL DISTEARATE
  • 10.
    TEA-Dodecylbenzenesulfonate
    TEA-DODECYLBENZENESULFONATE
  • 11.
    Guar Hydroxypropyltrimonium Chloride
    GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE
  • 12.
    Disodium EDTA
    DISODIUM EDTA
  • 13.
    Mica
    MICA
  • 14.
    PEG-45M
  • 15.
    Sodium Hydroxide
    SODIUM HYDROXIDE
  • 16.
    Coumarin
    COUMARIN
  • 17.
    Geraniol
    GERANIOL
  • 18.
    Hexyl Cinnamal
    HEXYL CINNAMAL
  • 19.
    Linalool
    LINALOOL
  • 20.
    Citric Acid
    CITRIC ACID
  • 21.
    Methylchloroisothiazolinone
    METHYLCHLOROISOTHIAZOLINONE
  • 22.
    Methylisothiazolinone
    METHYLISOTHIAZOLINONE
  • 23.
    CI 77891 synthetic colour

In label order — normally largest quantity first. Select a row for the full write-up and sources.

Fragrance allergens are substances EU cosmetics rules require to be named on the label (such as Limonene and Linalool). Fragrant botanicals such as essential oils are grouped with them because they can naturally contain such substances, but they are not on that list. They matter mainly for people with fragrance allergies or already-sensitive skin — not a general-population safety issue. Each named allergen takes a small deduction from the ingredient score, and a high count can cap it; fragrant botanicals take none. Naming them on the label is a transparency positive.

Learn More

Google Wikipedia EWG Skin Deep Open Food Facts

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What are the ingredients in Hydra Matrix Polyglutamic Acid Professional Shampoo?

The label of Hydra Matrix Polyglutamic Acid Professional Shampoo lists 23 ingredients, in label order: Water, Sodium Laureth Sulfate, Dimethiconol, Cocamidopropyl Betaine, Sodium Chloride, Perfume, Glycerin, Carbomer, Glycol Distearate, TEA-Dodecylbenzenesulfonate, Guar Hydroxypropyltrimonium Chloride, Disodium EDTA, Mica, PEG-45M, Sodium Hydroxide, COUMARIN, Geraniol, Hexyl Cinnamal, Linalool, Citric Acid, Methylchloroisothiazolinone, Methylisothiazolinone, CI 77891. Flagged by the analysis: Methylchloroisothiazolinone, Methylisothiazolinone, Sodium Laureth Sulfate, Cocamidopropyl Betaine, Perfume and 2 more.

Is Hydra Matrix Polyglutamic Acid Professional Shampoo safe to use?

Hydra Matrix Polyglutamic Acid Professional Shampoo scores 3.5/10 on Decode Label (Concerning). The score is capped for a specific safety reason, set out below. This shampoo contains Methylchloroisothiazolinone and Methylisothiazolinone, preservatives known as strong contact sensitizers, which are restricted in rinse-off cosmetics. It also includes Sodium Laureth Sulfate, a surfactant that can irritate sensitive skin, and several declared fragrance allergens. These ingredients are most relevant to people with sensitive skin, fragrance allergies or or contact dermatitis.

Why does Hydra Matrix Polyglutamic Acid Professional Shampoo score 3.5/10?

Flagged in the score: Potent contact sensitizers (Methylchloroisothiazolinone, Methylisothiazolinone). Primary surfactant with irritation potential (Sodium Laureth Sulfate). Undisclosed fragrance blend ('Perfume').

Who should avoid Hydra Matrix Polyglutamic Acid Professional Shampoo?

The points the analysis notes are most relevant to: Sensitive skin; Fragrance allergy; Contact dermatitis; Avoiding isothiazolinone preservatives.

Does Hydra Matrix Polyglutamic Acid Professional Shampoo contain allergens?

Yes — the label lists 4 fragrance allergens: COUMARIN, Geraniol, Hexyl Cinnamal and Linalool. These matter mainly if you have sensitive skin or a known fragrance allergy.

Does Hydra Matrix Polyglutamic Acid Professional Shampoo contain fragrance?

Yes — the ingredient list includes Perfume. Fragrance is declared as a single ingredient, so the individual scent chemicals in it are not named; the label does separately list 4 fragrance allergens (COUMARIN, Geraniol, Hexyl Cinnamal and Linalool). This matters mainly if you have sensitive skin or a known fragrance allergy.

Are the claims on the Hydra Matrix Polyglutamic Acid Professional Shampoo pack accurate?

Decode Label checked 4 claims against the ingredient list and nutrition panel. "Polyglutamic Acid" — false. "5X Hydration" — can't be verified from the label. "Fuller, Fluid Hair" — can't be verified from the label.

Answers are generated from this product's own Decode Label analysis — the score, the ingredient list and the label claims shown above. Always check the pack itself for allergen and dietary information.

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About this analysis: Based on declared label information and available evidence. Decode Label does not independently laboratory-test products, and a score is not a regulatory determination or medical advice.

Disclaimer: Safety scores are Decode Label-generated assessments based on publicly available regulatory data (FSSAI, WHO, EFSA, IARC) and peer-reviewed research. They are not a substitute for professional medical advice, and they are not a regulatory determination, a laboratory safety certification or a medical diagnosis. Ingredient safety can vary by individual health conditions, concentration, and usage context. Decode Label is an independent information service and scores every brand by the same rules. No brand pays for or influences its score. Our founder also founded the personal-care brand Botani Bestie (see our story); its products are scored exactly like everyone else's. Data limitations: This assessment is based on the information declared on the product label and the evidence sources above — Decode Label does not independently laboratory-test this product. Ingredient concentrations, sourcing and manufacturing can vary between batches and are not always disclosed. A finding that is not shown here means it was not identified from the available label information, not that it has been ruled out.

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