Luscious Thick & Long Shampoo by Sunsilk — product pack

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Sunsilk

Luscious Thick & Long Shampoo

haircare
3.0 Concerning

Decode Label Safety Score

Ingredient safety · 55% 0.6/10
Processing · 15% 3.5/10
Marketing · 30% 7.3/10
How we got 3.0 Show
Weighted score 3.0/10
Also flagged
Contains an isothiazolinone contact sensitizer — MCI/MI (EU SCCS) Contains an ingredient flagged for endocrine-disruption concern Primary surfactant with recognised irritation potential (EU SCCS) Undisclosed fragrance (allergens not named)
Final score 3.0/10 · 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 Methylchloroisothiazolinone and Methylisothiazolinone, potent contact sensitizers restricted in leave-on cosmetics by EU regulations, which are a primary concern for individuals with sensitive skin or contact allergies. While these are present in trace amounts in this rinse-off product, their presence is still a significant factor for those prone to sensitization. The product also includes Sodium Laureth Sulfate, a common surfactant that can cause irritation in sensitive individuals and may contain trace amounts of 1,4-dioxane, classified by IARC as Group 2B. The undisclosed 'Perfume' blend further raises concerns for those with fragrance allergies, as specific allergens are not listed. BHT, an antioxidant with endocrine-disruption concerns, is also present in trace amounts. Despite these concerns, the formulation includes beneficial ingredients like Glycerin and Lysine HCl, and the overall impact for most users in a rinse-off application is mitigated by the brief contact time.

Contains potent sensitizing preservatives and undisclosed fragrance

The score is capped for a specific safety reason, set out below. This shampoo contains Methylchloroisothiazolinone and Methylisothiazolinone, preservatives known for causing contact sensitization, which are a significant concern for people with sensitive skin or allergies. It also includes Sodium Laureth Sulfate, which can irritate sensitive skin and may contain a possible carcinogen as a manufacturing impurity. The presence of an undisclosed 'Perfume' means specific fragrance allergens are not listed, posing a risk for those with fragrance sensitivities.

Consider this product carefully if you are

  • Avoiding certain additives or colours — BHT and Methylchloroisothiazolinone are declared.
Okay for: Adults without known skin sensitivities or allergies

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  • Ingredients you avoid. Sulphates, parabens, silicones, fragrance, drying alcohol, PEGs and more.
  • Sensitivities. Sensitive skin, hormonal considerations, pregnancy.
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Concern breakdown What drives the score, concern by concern · score out of 10, higher = fewer concerns

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
Carcinogen & Contaminant Risk Significant concern · 2.5/10

Triggered by CI 17200, CI 19140 — a synthetic colour on our aromatic-amine watch list (impurity risk). A colour-quality caution, not a finding that this product contains a carcinogen.

Fragrance & Allergen Load Significant concern · 3.0/10
Endocrine-Active Ingredients Significant concern · 3.5/10
Harsh Surfactants & Irritants Moderate concern · 4.0/10
Irritant & Sensitising Actives 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

Contains an ingredient flagged for endocrine-disruption concern

Rule PC-CAP-07

Primary surfactant with recognised irritation potential (EU SCCS)

Rule PC-CAP-05

Undisclosed fragrance (allergens not named)

Rule PC-CAP-06

What's good

Contains humectant Glycerin for moisture

Includes conditioning agents like Guar Hydroxypropyltrimonium Chloride and Hydrolyzed Keratin

Contains amino acid Lysine HCl for hair strength

Watch out for

Presence of potent sensitizing preservatives (Methylchloroisothiazolinone, Methylisothiazolinone)

Undisclosed fragrance blend, a common source of allergens

Sodium Laureth Sulfate can be irritating to sensitive skin and may contain 1,4-dioxane impurity

BHT has endocrine-disruption concerns

Cocamidopropyl Betaine is a recognized contact allergen

CI 17200 — permitted cosmetic colourant - the EU limits where on the body each may be used.

CI 19140 — permitted cosmetic colourant - the EU limits where on the body each may be used.

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 →

BHT (E321)

BHT is a synthetic antioxidant used to stop fats and fragrance oils going rancid. The concern is endocrine activity: animal studies report effects on thyroid hormone and liver enzymes, and the EU SCCS has assessed it as an endocrine-disruption candidate. It is NOT classified as a carcinogen by IARC — that classification (Group 2B) belongs to BHA, a different additive with a similar name. Permitted in cosmetics at low levels.

Regulatory & scientific authority Source: EU SCCS Opinion on BHT (SCCS/1636/21); EFSA re-evaluation of E321

BHT: regulation, sources and other products →

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 →

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

"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 →

Synthetic Cosmetic Colourants (CI)

These Colour Index (CI) numbers are colourants on the EU list of permitted cosmetic colours, each with conditions on where it may be used (for example, some are allowed only in products that do not stay in contact with mucous membranes). A listed colour in a product used as directed is not a finding of harm; the colour serves only to colour the product, and this is information for anyone who prefers to avoid synthetic dyes.

Regulatory & scientific authority Source: EU Regulation 1223/2009 Annex IV (permitted colourants); SCCS opinions on colourants

Synthetic Cosmetic Colourants (CI): 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 prohibited in EU leave-on cosmetics and restricted in rinse-off products (EU Reg. 2016/1198).

Contains BHT, a synthetic antioxidant with endocrine-disruption concerns (SCCS Opinion SCCS/1636/21).

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

Contains 'Perfume' without specific disclosure of fragrance allergens, which can be problematic for individuals with fragrance sensitivities (EU Reg. 1223/2009 Art. 19 + Annex III).

Contains Cocamidopropyl Betaine, a recognized contact allergen, mostly through manufacturing impurities.

Combined Effects interactions

Sodium Laureth Sulfate Cocamidopropyl Betaine

Cocamidopropyl Betaine is often used to mitigate the harshness of anionic surfactants like Sodium Laureth Sulfate, but it is also a recognized contact allergen, sometimes due to impurities from its own manufacturing.

Methylchloroisothiazolinone Methylisothiazolinone

The combination of these two isothiazolinone preservatives (MCI/MI) is a well-known cause of contact sensitization, even in rinse-off products, due to their potent allergenic potential.

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.

?
"Luscious" Can't verify

The term 'luscious' is a subjective descriptor and cannot be objectively verified from the ingredient list or other label information.

?
"Thick & Long" Can't verify

The claim 'Thick & Long' refers to a hair benefit that cannot be verified from the ingredient list or other label information.

?
"Kera-Protein Complex 3%" Can't verify

This nutrient figure isn’t in our database for this product yet, so we can’t check the claim against the panel — it isn’t being called false, we just don’t have the numbers on file.

HYDROLYZED KERATIN HYDROLYZED COLLAGEN
?
"Bouncy Thick Hair" Can't verify

The claim 'Bouncy Thick Hair' refers to a hair benefit that cannot be verified from the ingredient list or other label information.

✓
"Kera-Protein Complex" Checks out

The ingredient list includes 'HYDROLYZED KERATIN' and 'HYDROLYZED COLLAGEN', which are components of a protein complex.

HYDROLYZED KERATIN HYDROLYZED COLLAGEN
✓
"with Keratin" Checks out

The ingredient list includes 'HYDROLYZED KERATIN'.

HYDROLYZED KERATIN
✓
"with Collagen" Checks out

The ingredient list includes 'HYDROLYZED COLLAGEN'.

HYDROLYZED COLLAGEN
✓
"with Macadamia Oil" Checks out

The ingredient list includes 'MACADAMIA INTEGRIFOLIA SEED OIL'.

MACADAMIA INTEGRIFOLIA SEED OIL

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.
    Sodium Benzoate
    SODIUM BENZOATE
  • 8.
    Carbomer
    CARBOMER
  • 9.
    Citric Acid
    CITRIC ACID
  • 10.
    Glycerin
    GLYCERIN
  • 11.
    Guar Hydroxypropyltrimonium Chloride
    GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE
  • 12.
    TEA-Dodecylbenzenesulfonate
    TEA-DODECYLBENZENESULFONATE
  • 13.
    Disodium EDTA
    DISODIUM EDTA
  • 14.
    Mica
    MICA
  • 15.
    Titanium Dioxide
    TITANIUM DIOXIDE
  • 16.
    PEG-45M
  • 17.
    Lysine HCl
    LYSINE HCL
  • 18.
    Hydrolyzed Keratin
    HYDROLYZED KERATIN
  • 19.
    Yogurt Powder
    YOGURT POWDER
  • 20.
    Hydrolyzed Collagen
    HYDROLYZED COLLAGEN
  • 21.
    Macadamia Integrifolia Seed Oil trace amount
    MACADAMIA INTEGRIFOLIA SEED OIL
  • 22.
    PPG-9
  • 23.
    CI 17200 synthetic colour
  • 24.
    CI 19140 synthetic colour
  • 25.
    Silica
    SILICA
  • 26.
    BHT
  • 27.
    Methylchloroisothiazolinone
    METHYLCHLOROISOTHIAZOLINONE
  • 28.
    Methylisothiazolinone
    METHYLISOTHIAZOLINONE

Trace amounts: some named ingredients appear in token quantities or low in the list. At these concentrations a meaningful benefit is unlikely, and their front-of-pack prominence may not reflect their level in the formulation.

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

Compare with other shampoo 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.

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What are the ingredients in Luscious Thick & Long Shampoo?

The label of Luscious Thick & Long Shampoo lists 28 ingredients, in label order: Water, Sodium Laureth Sulfate, Dimethiconol, Cocamidopropyl Betaine, Sodium Chloride, Perfume, Sodium Benzoate, Carbomer, Citric Acid, Glycerin, Guar Hydroxypropyltrimonium Chloride, TEA-Dodecylbenzenesulfonate, Disodium EDTA, Mica, Titanium Dioxide, PEG-45M, Lysine HCl, Hydrolyzed Keratin, Yogurt Powder, Hydrolyzed Collagen, Macadamia Integrifolia Seed Oil, PPG-9, CI 17200, CI 19140, Silica, BHT, Methylchloroisothiazolinone, Methylisothiazolinone. Flagged by the analysis: Methylchloroisothiazolinone, Methylisothiazolinone, Sodium Laureth Sulfate, BHT, Cocamidopropyl Betaine and 5 more.

Is Luscious Thick & Long Shampoo safe to use?

Luscious Thick & Long Shampoo scores 3.0/10 on Decode Label (Concerning). The score is capped for a specific safety reason, set out below. This shampoo contains Methylchloroisothiazolinone and Methylisothiazolinone, preservatives known for causing contact sensitization, which are a significant concern for people with sensitive skin or allergies. It also includes Sodium Laureth Sulfate, which can irritate sensitive skin and may contain a possible carcinogen as a manufacturing impurity. The presence of an undisclosed 'Perfume' means specific fragrance allergens are not listed, posing a risk for those with fragrance sensitivities.

Why does Luscious Thick & Long Shampoo score 3.0/10?

Flagged in the score: Presence of potent sensitizing preservatives (Methylchloroisothiazolinone, Methylisothiazolinone). Sodium Laureth Sulfate can be irritating to sensitive skin and may contain 1,4-dioxane impurity. Also noted: Undisclosed fragrance blend, a common source of allergens.

Who should avoid Luscious Thick & Long Shampoo?

The points the analysis notes are most relevant to: Sensitive skin or contact allergies to isothiazolinones; Fragrance allergy or sensitivity; Avoiding ethoxylated ingredients due to 1,4-dioxane concerns; Avoiding BHT due to endocrine disruption concerns.

Does Luscious Thick & Long 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. This matters mainly if you have sensitive skin or a known fragrance allergy.

Are the claims on the Luscious Thick & Long Shampoo pack accurate?

Decode Label checked 8 claims against the ingredient list and nutrition panel. "Luscious" — can't be verified from the label. "Thick & Long" — can't be verified from the label. "Kera-Protein Complex 3%" — 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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