Preferance 1 Napoli product image with 30/100 Zerotox safety score

Is Preferance 1 Napoli Safe? Ingredient Analysis

L'Oreal Norge AS

Preferance 1 Napoli is a skincare from L'Oreal Norge AS. It has a Zerotox safety score of 30/100, which means it has several flagged ingredients and may not suit cautious buyers.

The main ingredients worth reviewing are Ammonium Hydroxide, Chlorhexidine Dihydrochloride, Fragrance.

30 / 100

Low quality

Why score is 30

The composition includes several synthetic ingredients such as ammonium hydroxide and chlorhexidine dihydrochloride, raising significant safety concerns. The presence of multiple artificial fragrances and preservatives further indicates a highly processed formulation.

Main concern

Presence of ammonium hydroxide, a strong alkaline agent that can cause irritation.

Why it matters: This ingredient is flagged in our analysis based on regulatory and scientific sources. Check the Ingredients section for details and see Data sources for methodology.

Regulation status: Ingredient safety is assessed from EU/EPA/CIR and similar databases; formulations may vary. Always read the product label.

Pros

  • Contains glycerin, a humectant that helps retain moisture in hair.
  • Includes tocopheryl acetate, an antioxidant that can help protect hair from damage.

Concerns

  • Presence of ammonium hydroxide, a strong alkaline agent that can cause irritation.
  • Multiple synthetic fragrances may lead to allergic reactions or sensitivities.
  • Chlorhexidine dihydrochloride is a synthetic antimicrobial that raises safety concerns.
  • Includes EDTA, a chelating agent that can pose environmental risks.

Who should avoid this product?

This skincare may not be the best fit for:

  • people with sensitive skin or fragrance sensitivity

Ingredients breakdown

Each ingredient below is explained in the context of this skincare so the page answers more than a simple label list.

  • Is Water safe in this skincare?

    Good

    Water is used here as base. Water serves as the primary solvent in this formulation, providing hydration and facilitating the distribution of other ingredients.

    Role in formula: base

    Original: AQU A / WAT E R

    Read the full ingredient profile for Water

  • Is Propylene Glycol safe in this skincare?

    Medium

    Propylene Glycol is used here as solvent. Propylene glycol acts as a solvent and humectant, helping to retain moisture but may cause irritation in sensitive individuals.

    Role in formula: solvent

    Original: PROPYLENE GLYCOL

    Read the full ingredient profile for Propylene Glycol

  • Is Ammonium Hydroxide safe in this skincare?

    Bad

    Ammonium Hydroxide is used here as alkaline agent. Ammonium hydroxide is a strong alkaline agent used to adjust pH, which can lead to irritation and damage to hair and skin.

    Role in formula: alkaline agent

    Original: AMMONIUM HYDROXIDE

    Read the full ingredient profile for Ammonium Hydroxide

  • Is Chlorhexidine Dihydrochloride safe in this skincare?

    Bad

    Chlorhexidine Dihydrochloride is used here as antimicrobial. Chlorhexidine dihydrochloride is a synthetic antimicrobial that can cause skin irritation and raises safety concerns regarding long-term use.

    Role in formula: antimicrobial

    Original: CHLORHEXIDINE DIHYDROCHLORIDE

  • Is Fragrance safe in this skincare?

    Bad

    Fragrance is used here as fragrance. Fragrance is a common allergen and can cause sensitivities; its presence indicates a lack of transparency in ingredient formulation.

    Role in formula: fragrance

    Original: PARFUM / FRAGRANCE

    Read the full ingredient profile for Fragrance

  • Is Edta safe in this skincare?

    Bad

    Edta is used here as chelating_agent. EDTA is used to bind metal ions but poses environmental concerns due to its persistence in nature.

    Role in formula: chelating_agent

    Original: EDTA

    Read the full ingredient profile for Edta

How we score

Our safety scores and ingredient breakdowns are based on regulatory and scientific sources. See Data sources & methodology and How Zerotox works for full details.

Product info

Product ID: 4279865

More from this brand: L'Oreal Norge AS products in Zerotox

Similar products: skincare in Zerotox database

Report / complain: You may report errors or complain about this product or its formulation to hello [at] zeroto.app . Published for transparency.

Frequently asked questions

Yes. Our analysis flags fragrance in L'Oreal Norge AS — Preferance 1 Napoli. See the Ingredients section above.
L'Oreal Norge AS — Preferance 1 Napoli scores 30 / 100. Daily use depends on your skin type and tolerance, so review the flagged ingredients and patch-test if you are sensitive. Scores are informational only and do not constitute professional advice; always read the label and consult a qualified professional.
L'Oreal Norge AS — Preferance 1 Napoli has a Zerotox safety score of 30 / 100. Higher scores mean fewer concerning ingredients. Scores are informational only and do not constitute professional advice; always read the label and consult a qualified professional.
Main concerns for this product: Presence of ammonium hydroxide, a strong alkaline agent that can cause irritation.; Multiple synthetic fragrances may lead to allergic reactions or sensitivities.. See the full list above.
Yes. Our analysis indicates fragrance or parfum. This can irritate sensitive skin. See the Ingredients section.
Browse L'Oreal Norge AS products on Zerotox with ingredient analysis and safety scores.
This product includes positive or neutral ingredients such as: water. See the Ingredients section above.
This product is flagged for: Presence of ammonium hydroxide, a strong alkaline agent that can cause irritation.; Multiple synthetic fragrances may lead to allergic reactions or sensitivities.; Chlorhexidine dihydrochloride is a synthetic antimicrobial that raises safety concerns.. See the Concerns and Ingredients sections above.
Our analysis notes: Contains glycerin, a humectant that helps retain moisture in hair.; Includes tocopheryl acetate, an antioxidant that can help protect hair from damage.. See the Pros section above.
This product contains fragrance or allergens that may affect sensitive skin. See the Ingredients section and patch-test. Scores are informational only and do not constitute professional advice; always read the label and consult a qualified professional.
L'Oreal Norge AS — Preferance 1 Napoli is a skincare product. Zerotox gives it a safety score of 30 / 100 based on ingredients. Check the breakdown above and our skincare topic for alternatives. Scores are informational only and do not constitute professional advice; always read the label and consult a qualified professional.
L'Oreal Norge AS — Preferance 1 Napoli has a Zerotox score of 30 / 100 among skincare products. See the full breakdown above.