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Hydra Matrix Polyglutamic Acid Professional Conditioner by Tresemmé — product pack

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Tresemmé

Hydra Matrix Polyglutamic Acid Professional Conditioner

haircare
3.5 Concerning

Decode Label Safety Score

Ingredient safety · 55% 5.2/10
Processing · 15% 7.0/10
Marketing · 30% 5.6/10
How we got 3.5 Show
Weighted score 5.6/10
Capped — Contains an isothiazolinone contact sensitizer — MCI/MI (EU SCCS) ≤ 3.5
Also flagged
Undisclosed fragrance (allergens not named)
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 rinse-off conditioner contains Methylchloroisothiazolinone and Methylisothiazolinone (MCI/MI), potent contact sensitizers restricted in EU leave-on products and a concern even in rinse-off applications for individuals with sensitive skin or existing allergies. The presence of an undisclosed 'Perfume' also means potential exposure to common fragrance allergens without specific identification. While the product includes beneficial ingredients like Tocopheryl Acetate, Panthenol, Ascorbic Acid, Biotin, and Niacinamide, these are listed in trace amounts and do not define the product's primary safety profile.

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 Phenoxyethanol Common preservative - capped at 1%; French regulator advises caution for under-3s → Ingredient · worth noting PEG-7 Propylheptyl Ether Ethoxylated ingredient - quality depends on removal of manufacturing impurities →

What’s favorable

  • CETEARYL ALCOHOL
  • Stearamidopropyl Dimethylamine
  • Behentrimonium Chloride
  • Lactic Acid
  • Cetrimonium Chloride

Rinse-off conditioner with sensitizing preservatives and undisclosed fragrance

The score is capped for a specific safety reason, set out below. This conditioner contains Methylchloroisothiazolinone and Methylisothiazolinone (MCI/MI), preservatives known to be potent contact sensitizers, which are restricted in leave-on products in the EU. It also includes an undisclosed 'Perfume', which can contain common allergens not individually listed. These factors 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 sensitivities to MCI/MI or fragrance

Personal check · free

Is this right for you or your family?

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 Phenoxyethanol PEG-7 Propylheptyl Ether Perfume +1 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 No concern identified · 8.0/10
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

Undisclosed fragrance (allergens not named)

Rule PC-CAP-06

What's good

Contains multiple effective conditioning agents (Cetearyl Alcohol, Stearamidopropyl Dimethylamine, Behentrimonium Chloride, Cetrimonium Chloride) for detangling and smoothing hair.

Includes Lactic Acid, which can help balance pH and smooth the hair cuticle.

Watch out for

The presence of Methylchloroisothiazolinone and Methylisothiazolinone (MCI/MI) poses a significant risk of contact sensitization, particularly for individuals with sensitive skin or existing allergies, even in a rinse-off product.

The undisclosed 'Perfume' means potential exposure to common fragrance allergens without specific identification, which is a concern for those with fragrance sensitivities.

Phenoxyethanol is present as a preservative, with regulatory caution advised for use in products for very young children.

Dipropylene Glycol — humectant/solvent - occasional skin irritant at higher concentration.

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 →

Phenoxyethanol

Phenoxyethanol is the most widely used paraben-free preservative. The EU limits it to 1% in cosmetics (SCCS has confirmed this is safe for adults), and the French regulator ANSM advised in 2012 against leave-on products containing it for the nappy area of children under three and recommended a lower concentration for them. It can irritate sensitive skin.

Regulatory & scientific authority Source: EU Regulation 1223/2009 Annex V (max 1.0%); SCCS opinion SCCS/1575/16; ANSM recommendation (2012)

Phenoxyethanol: 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 →

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 →

Propylene Glycol (E1520)

Propylene glycol is a widely used humectant and solvent considered safe at normal levels. It can irritate or sensitise a minority of people, mainly in leave-on products on damaged or eczema-prone skin.

Peer-reviewed research Source: Cosmetic Ingredient Review; contact-dermatitis literature

Propylene Glycol: regulation, sources and other products →

Decode Label Analysis

Contains Methylchloroisothiazolinone and Methylisothiazolinone (MCI/MI), potent contact sensitizers. These are prohibited in EU leave-on cosmetics and restricted in rinse-off products due to their high sensitization potential (Authority: EU Reg. 2016/1198).

Contains 'Perfume', an undisclosed fragrance mix that can contain common allergens. The specific fragrance allergens are not individually declared, which is a transparency concern (Authority: EU Reg. 1223/2009 Art. 19 + Annex III).

Contains Phenoxyethanol, a common preservative. The French regulator advises caution for use in products for children under 3 years old.

Contains PEG-7 Propylheptyl Ether, an ethoxylated ingredient. These ingredients may carry a 1,4-dioxane residue, a possible carcinogen (IARC Group 2B). The EU SCCS considers 1,4-dioxane at or below 10 ppm in a finished cosmetic safe; the label does not confirm or measure its concentration in this product.

Combined Effects interactions

Methylchloroisothiazolinone Methylisothiazolinone

These two preservatives are often used together in a blend (Kathon CG) and are known for their synergistic antimicrobial activity, but also for their combined potential as contact sensitizers. The EU SCCS has extensively reviewed their safety, leading to restrictions.

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 in the ingredients.

Ingredients list does not contain Polyglutamic Acid
?
"100H Hydration Lock" Can't verify

The claim of "100H Hydration Lock" is a performance claim that cannot be verified from the ingredient list.

100H Hydration Lock
?
"Fuller, Fluid Hair" Can't verify

The claim of "Fuller, Fluid Hair" is a performance claim that cannot be verified from the ingredient list.

Fuller, Fluid Hair
?
"Professional Conditioner" Can't verify

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

Professional Conditioner

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.
    Cetearyl Alcohol
    CETEARYL ALCOHOL
  • 3.
    Dimethicone
    DIMETHICONE
  • 4.
    Stearamidopropyl Dimethylamine
    STEARAMIDOPROPYL DIMETHYLAMINE
  • 5.
    Behentrimonium Chloride
    BEHENTRIMONIUM CHLORIDE
  • 6.
    Perfume undisclosed fragrance
    PERFUME
  • 7.
    Lactic Acid
    LACTIC ACID
  • 8.
    Dipropylene Glycol
    DIPROPYLENE GLYCOL
  • 9.
    Amodimethicone
    AMODIMETHICONE
  • 10.
    Sodium Chloride
    SODIUM CHLORIDE
  • 11.
    Disodium EDTA
    DISODIUM EDTA
  • 12.
    Phenoxyethanol
    PHENOXYETHANOL
  • 13.
    PEG-7 Propylheptyl Ether
    PEG-7 PROPYLHEPTYL ETHER
  • 14.
    Cetrimonium Chloride
    CETRIMONIUM CHLORIDE
  • 15.
    Magnesium Nitrate
    MAGNESIUM NITRATE
  • 16.
    Methylchloroisothiazolinone
    METHYLCHLOROISOTHIAZOLINONE
  • 17.
    Magnesium Chloride
    MAGNESIUM CHLORIDE
  • 18.
    Methylisothiazolinone
    METHYLISOTHIAZOLINONE
  • 19.
    Lysine HCl
    LYSINE HCL
  • 20.
    Hydrolyzed Keratin
    HYDROLYZED KERATIN
  • 21.
    Tocopheryl Acetate
    TOCOPHERYL ACETATE
  • 22.
    Panthenol
    PANTHENOL
  • 23.
    Ascorbic Acid
    ASCORBIC ACID
  • 24.
    Biotin
    BIOTIN
  • 25.
    Niacinamide
    NIACINAMIDE

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

Learn More

Google Wikipedia EWG Skin Deep Open Food Facts

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

The label of Hydra Matrix Polyglutamic Acid Professional Conditioner lists 25 ingredients, in label order: Water, CETEARYL ALCOHOL, Dimethicone, Stearamidopropyl Dimethylamine, Behentrimonium Chloride, Perfume, Lactic Acid, Dipropylene Glycol, Amodimethicone, Sodium Chloride, Disodium EDTA, Phenoxyethanol, PEG-7 Propylheptyl Ether, Cetrimonium Chloride, Magnesium Nitrate, Methylchloroisothiazolinone, Magnesium Chloride, Methylisothiazolinone, Lysine HCl, Hydrolyzed Keratin, Tocopheryl Acetate, Panthenol, Ascorbic acid, Biotin, Niacinamide. Flagged by the analysis: Methylchloroisothiazolinone, Methylisothiazolinone, Perfume, Phenoxyethanol, Dipropylene Glycol and 2 more.

Is Hydra Matrix Polyglutamic Acid Professional Conditioner safe to use?

Hydra Matrix Polyglutamic Acid Professional Conditioner scores 3.5/10 on Decode Label (Concerning). The score is capped for a specific safety reason, set out below. This conditioner contains Methylchloroisothiazolinone and Methylisothiazolinone (MCI/MI), preservatives known to be potent contact sensitizers, which are restricted in leave-on products in the EU. It also includes an undisclosed 'Perfume', which can contain common allergens not individually listed. These factors are most relevant to people with sensitive skin, fragrance allergies or or contact dermatitis.

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

Flagged in the score: The presence of Methylchloroisothiazolinone and Methylisothiazolinone (MCI/MI) poses a significant risk of contact sensitization, particularly for individuals with sensitive skin or existing allergies, even in a rinse-off product. The undisclosed 'Perfume' means potential exposure to common fragrance allergens without specific identification, which is a concern for those with fragrance sensitivities. Phenoxyethanol is present as a preservative, with regulatory caution advised for use in products for very young children.

Who should avoid Hydra Matrix Polyglutamic Acid Professional Conditioner?

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

Does Hydra Matrix Polyglutamic Acid Professional Conditioner 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. This matters mainly if you have sensitive skin or a known fragrance allergy.

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

Decode Label checked 4 claims against the ingredient list and nutrition panel. "Polyglutamic Acid" — false. "100H Hydration Lock" — 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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