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Keratin Smooth+ Professional Conditioner
Decode Label Safety Score
How we got 7.8 ShowHide
Methodology v3.1 (updated 8 Oct 2026) — what changed
This rinse-off conditioner provides effective conditioning with silicones and quaternary ammonium compounds, but contains an undisclosed fragrance blend and several declared fragrance allergens, which are most relevant to individuals with sensitive skin or fragrance allergies. While the product is designed to be rinsed off, reducing exposure, the presence of these allergens warrants caution for susceptible groups.
At a glance
From the declared label — not a lab testFindings to weigh
What’s favorable
- CETEARYL ALCOHOL
- Dimethicone
- Amodimethicone
- Cetrimonium Chloride
- Behentrimonium Chloride
- +3 more →
Conditioner with effective detangling, but contains undisclosed fragrance and allergens
This conditioner uses silicones and conditioning agents for smooth hair. However, it contains an undisclosed 'Fragrance' blend, which can be a source of common allergens. Several individual fragrance allergens are also declared, which is a key consideration for those with sensitive skin or fragrance allergies.
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- 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
Score out of 10 · higher = fewer concernsHow 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.
Why the score is capped
High load of declared fragrance allergens (EU-listed)
Rule PC-CAP-03
What's good
Contains effective conditioning agents (Dimethicone, Amodimethicone, Cetrimonium Chloride, Behentrimonium Chloride) for detangling and smoothing hair.
Includes Hydrolyzed Keratin for hair strengthening and Argania Spinosa Kernel Oil for nourishment.
Lactic Acid helps adjust pH and smooth the hair cuticle.
Watch out for
Undisclosed 'Fragrance' blend can be problematic for sensitive individuals.
High load of declared fragrance allergens (Benzyl Salicylate, Citronellol, Alpha-Isomethyl Ionone, Hexyl Cinnamal) may cause sensitization or allergic reactions in susceptible users.
Phenoxyethanol is a preservative that some individuals choose to avoid, especially for young children.
Silicones like Dimethicone can lead to build-up on hair over time, potentially requiring clarifying shampoos.
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.
Sodium Benzoate (E211)
Benzoates are permitted preservatives with an established acceptable daily intake. Two documented concerns: in acidic drinks that also contain ascorbic acid (vitamin C) they can slowly form small amounts of benzene, especially with heat and light (US FDA beverage survey, 2006); and sodium benzoate was one of the additives in the Southampton study mixtures associated with hyperactivity in children. It can also trigger reactions in some people with asthma or urticaria.
Regulatory & scientific authority Source: EFSA re-evaluation of benzoic acid and benzoates (2016); US FDA benzene-in-beverages survey (2006); McCann et al., Lancet 2007
Sodium Benzoate: 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 →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 →Decode Label Analysis
Contains 'Fragrance', an undisclosed blend that can contain numerous sensitizers and allergens, posing a transparency concern.
Contains multiple declared fragrance allergens (Benzyl Salicylate, Citronellol, Alpha-Isomethyl Ionone, Hexyl Cinnamal) which are common sensitizers for individuals with fragrance allergies or sensitive skin.
Contains Sodium Benzoate, a preservative that can form benzene in the presence of vitamin C, though this risk is primarily associated with food/beverage products and less relevant for a rinse-off cosmetic.
Contains Phenoxyethanol, a common preservative. French regulators advise caution for use in products for children under 3 years old.
Contains PEG-7 Propylheptyl Ether, an ethoxylated ingredient that may carry a 1,4-dioxane residue, a possible manufacturing impurity classified by IARC as Group 2B. The EU SCCS considers 1,4-dioxane at or below 10 ppm in a finished cosmetic safe.
Combined Effects interactions
While Lactic Acid is not Vitamin C, the combination of Sodium Benzoate with certain acids can potentially lead to the formation of benzene, though this is primarily a concern with ascorbic acid (Vitamin C) and typically in food/beverage products. In a rinse-off cosmetic, the risk is significantly lower.
Claim check
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.
This claim refers to professional usage, which cannot be confirmed or denied from the ingredient list or other label information.
The claim of salon smooth and frizz control for up to 72 hours is a performance claim that cannot be verified from the ingredient list.
The term 'Professional Conditioner' is a product designation that cannot be verified from the ingredient list.
Hydrolyzed Keratin is listed in the ingredients, supporting the claim of containing keratin for smoothness.
Hydrolyzed Keratin and Argania Spinosa Kernel (Argan) Oil are both listed in the ingredients.
Read straight from the back-of-pack photo — quantities, sections and any disguised terms, so the small print can’t hide behind the marketing.
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1.
WaterWATER
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2.
Cetearyl AlcoholCETEARYL ALCOHOL
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3.
DimethiconeDIMETHICONE
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4.
AmodimethiconeAMODIMETHICONE
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5.
PEG-7 Propylheptyl EtherPEG-7 PROPYLHEPTYL ETHER
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6.
Cetrimonium ChlorideCETRIMONIUM CHLORIDE
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7.
Behentrimonium ChlorideBEHENTRIMONIUM CHLORIDE
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8.
Fragrance undisclosed fragranceFRAGRANCE
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9.
Lactic AcidLACTIC ACID
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10.
Disodium EDTADISODIUM EDTA
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11.
Hydrolyzed KeratinHYDROLYZED KERATIN
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12.
Argania Spinosa Kernel OilARGANIA SPINOSA KERNEL (ARGAN) OIL
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13.
Sodium BenzoateSODIUM BENZOATE
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14.
PhenoxyethanolPHENOXYETHANOL
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15.
Benzyl SalicylateBENZYL SALICYLATE
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16.
CitronellolCITRONELLOL
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17.
Alpha-Isomethyl IononeALPHA-ISOMETHYL IONONE
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18.
Hexyl CinnamalHEXYL CINNAMAL
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.
✓ Decode Label Assessment: Favorable ⚠ Decode Label Assessment: Concern Decode Label Assessment: Neutral
Who should take caution
About this ingredient
Declared on this label as
No detailed safety data in our database yet for this ingredient.
Learn More
Compare with other conditioner products
Assessed using the same Decode Label methodology, sorted by score. Each score reflects the information available for that product at the time of assessment.
Also on this shelf
More Conditioner products we've analysed, in name order.
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Herbal Essences Hydrate Coconut Milk Conditioner
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Tresemmé Keratin Smooth Conditioner With Keratin & Argan Oil
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-
Pantene Silky Smooth Conditioner
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Tresemmé Smooth & Shine Conditioner
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What are the ingredients in Keratin Smooth+ Professional Conditioner?
The label of Keratin Smooth+ Professional Conditioner lists 18 ingredients, in label order: Water, CETEARYL ALCOHOL, Dimethicone, Amodimethicone, PEG-7 Propylheptyl Ether, Cetrimonium Chloride, Behentrimonium Chloride, Fragrance, Lactic Acid, Disodium EDTA, Hydrolyzed Keratin, Argania Spinosa Kernel Oil, Sodium Benzoate, Phenoxyethanol, Benzyl Salicylate, Citronellol, ALPHA-ISOMETHYL IONONE, Hexyl Cinnamal. Flagged by the analysis: Fragrance, Phenoxyethanol, PEG-7 Propylheptyl Ether, Disodium EDTA.
Is Keratin Smooth+ Professional Conditioner safe to use?
Keratin Smooth+ Professional Conditioner scores 7.8/10 on Decode Label (Favorable). This conditioner uses silicones and conditioning agents for smooth hair. However, it contains an undisclosed 'Fragrance' blend, which can be a source of common allergens. Several individual fragrance allergens are also declared, which is a key consideration for those with sensitive skin or fragrance allergies.
Why does Keratin Smooth+ Professional Conditioner score 7.8/10?
Flagged in the score: Undisclosed 'Fragrance' blend can be problematic for sensitive individuals. High load of declared fragrance allergens (Benzyl Salicylate, Citronellol, Alpha-Isomethyl Ionone, Hexyl Cinnamal) may cause sensitization or allergic reactions in susceptible users. Phenoxyethanol is a preservative that some individuals choose to avoid, especially for young children.
Who should avoid Keratin Smooth+ Professional Conditioner?
The points the analysis notes are most relevant to: Sensitive skin or fragrance allergy; Avoiding undisclosed fragrance blends; Avoiding specific declared fragrance allergens.
Does Keratin Smooth+ Professional Conditioner contain allergens?
Yes — the label lists 4 fragrance allergens: Benzyl Salicylate, Citronellol, ALPHA-ISOMETHYL IONONE and Hexyl Cinnamal. These matter mainly if you have sensitive skin or a known fragrance allergy.
Does Keratin Smooth+ Professional Conditioner contain fragrance?
Yes — the ingredient list includes Fragrance. 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 (Benzyl Salicylate, Citronellol, ALPHA-ISOMETHYL IONONE and Hexyl Cinnamal). This matters mainly if you have sensitive skin or a known fragrance allergy.
Are the claims on the Keratin Smooth+ Professional Conditioner pack accurate?
Decode Label checked 5 claims against the ingredient list and nutrition panel. "USED BY PROFESSIONALS" — can't be verified from the label. "SALON SMOOTH, FRIZZ CONTROL FOR UPTO 72H^" — can't be verified from the label. "PROFESSIONAL CONDITIONER" — 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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