Beauty Comparison
L'Oréal Professionnel Serie Expert DUO Pro Longer Shampoo and Conditioner

Photo and link: Amazon

L'Oréal Professionnel

Serie Expert DUO Pro Longer Shampoo and Conditioner

conditioner · 0.06 ml · Haircare

L'Oréal Professionnel Serie Expert DUO Pro Longer Shampoo and Conditioner is free of fragrance, essential oils, drying alcohol, parabens and MI / MCI, going by its full 26-ingredient list, with salicylic acid. List checked November 5, 2026.

The catch: it contains labelled fragrance allergens (Benzyl Salicylate, Benzyl Alcohol), sulfates (Sodium Laureth Sulfate) and silicones (Amodimethicone).

  • Fragrance-free
  • No essential oils
  • Contains labelled fragrance allergens
  • No drying alcohol
  • Contains sulfates
  • Contains silicones
  • Paraben-free
  • No MI/MCI

Listed in Amazon's stores in United Kingdom · Italy; links take you to your own store.

Key ingredients in Serie Expert DUO Pro Longer Shampoo and Conditioner

  • Salicylic acid (BHA)

    Loosens flakes and build-up on the scalp.

Full ingredient list, decoded

26 ingredients, in label order (highest amount first; below about 1% the order is free).

  1. 1Aqua / Water / EauAqua is the INCI name for water, the main base of many creams, lotions and cleansers…
  2. 2Sodium Laureth SulfateSodium laureth sulfate is a cleansing agent, called a surfactant, that lifts oil and…Sulfates
  3. 3Sodium ChlorideA simple mineral salt, made of sodium and chloride, used mainly to adjust thickness and…
  4. 4Cocamidopropyl BetaineA mild, coconut-derived cleansing agent that creates foam and helps other cleansers…
  5. 5AmodimethiconeAmodimethicone is a silicone with amine groups, nitrogen-containing parts that help it…Silicones
  6. 6CarbomerA synthetic polymer made from acrylic acid that thickens water-based products and keeps…
  7. 7Glycol DistearateGlycol Distearate is a waxy solid made by joining glycol with stearic acid. Its main…
  8. 8Sodium BenzoateSodium benzoate is the sodium salt of benzoic acid, a water-soluble powder used mainly…
  9. 9Sodium HydroxideSodium hydroxide is a strong alkali, also called caustic soda. In small amounts it…
  10. 10ArginineArginine is an amino acid, one of the natural building blocks of proteins. In hair…
  11. 11Salicylic AcidSalicylic acid is a beta hydroxy acid, or BHA, that gently exfoliates skin and helps…
  12. 12Benzyl SalicylateA fragrance ingredient, made from benzyl alcohol and salicylic acid, that gives…Labelled fragrance allergens
  13. 13Benzyl AlcoholBenzyl Alcohol is a clear, mild liquid that works as a preservative. It helps stop…Labelled fragrance allergens
  14. 14PEG-60 Hydrogenated Castor OilA plant-derived emulsifier made from hydrogenated castor oil. Its main job is to help…
  15. 15LimoneneLimonene is a natural scent molecule found in citrus peel oils. It gives products a…Labelled fragrance allergens
  16. 16Coco-BetaineA mild, coconut-derived surfactant that cleans and foams. It works as a gentle helper…
  17. 17Trideceth-3
  18. 18HydroxycitronellalA lab-made fragrance ingredient whose main job is giving products a fresh, floral…Labelled fragrance allergens
  19. 19CI 17200 / Red 33Red 33 is a synthetic red dye. Its main job is adding color to water-based products…
  20. 20Hexyl CinnamalHexyl Cinnamal is a synthetic fragrance ingredient with a soft, floral scent. Its main…Labelled fragrance allergens
  21. 21LinaloolLinalool is a fragrance compound found naturally in flowers and herbs, and in skincare…Labelled fragrance allergens
  22. 22Hydroxypropyltrimonium Chloride
  23. 23Acetic AcidAcetic acid is the sour-tasting acid found in vinegar. In beauty products, it mainly…
  24. 24Fumaric AcidFumaric acid is a naturally occurring organic acid that is used mainly to adjust and…
  25. 25Polyquaternium-6A synthetic polymer with a positive charge, used mainly to condition hair and skin,…
  26. 26Tetrasodium EDTATetrasodium EDTA is the salt form of EDTA, a chelating agent that binds metal ions in…

Source: Open Beauty Facts (ODbL), world.openbeautyfacts.org/product/3474636975853, retrieved November 5, 2026.

Every flag we check

CheckResultIngredients found
FragranceNone listed—
Essential oilsNone listed—
Labelled fragrance allergensContainsBenzyl Salicylate (#12), Benzyl Alcohol (#13), Limonene (#15), Hydroxycitronellal (#18), Hexyl Cinnamal (#20), Linalool (#21)
Drying alcoholNone listed—
SulfatesContainsSodium Laureth Sulfate (#2)
SiliconesContainsAmodimethicone (#5)
ParabensNone listed—
MI / MCINone listed—
Formaldehyde releasersNone listed—
Mineral oil & petrolatumNone listed—
LanolinNone listed—
Chemical UV filtersNone listed—

Frequently asked questions

Is L'Oréal Professionnel Serie Expert DUO Pro Longer Shampoo and Conditioner fragrance-free?

Yes. L'Oréal Professionnel Serie Expert DUO Pro Longer Shampoo and Conditioner lists no parfum or fragrance and no essential oils. Checked against its full ingredient list on November 5, 2026.

Does L'Oréal Professionnel Serie Expert DUO Pro Longer Shampoo and Conditioner contain silicones, sulfates or parabens?

Silicones: yes (Amodimethicone). Sulfates: yes (Sodium Laureth Sulfate). Parabens: none listed.

Which ingredient rules does L'Oréal Professionnel Serie Expert DUO Pro Longer Shampoo and Conditioner pass?

Its full list passes our ingredient rules for sensitive skin, MI allergy, rosacea-prone skin and acne-prone skin. Key ingredients: Salicylic acid (BHA).

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