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La Roche-Posay

Toleriane Ultra Dermallergo Serum

Serum

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1 of 15 ingredients flagged

Fungal acne trigger
Polysorbate 20

Key ingredientsHyaluronic Acid, Peptides

Ingredients

In label order. Tap one to learn what it does.

  1. 1Aqua/Water

    The base of most formulas. Dissolves everything else.

  2. 2Dipropylene Glycol

    Lightweight hydrator and solvent that helps ingredients absorb.

  3. 3Glycerin

    A skincare MVP. Draws water into skin and supports the barrier.

  4. 4Betaine

    Gentle hydrator from sugar beets that helps calm irritation.

  5. 5Propanediol

    Lightweight hydrator and solvent that helps ingredients absorb.

  6. 6Pentylene Glycol

    Lightweight hydrator and solvent that helps ingredients absorb.

  7. 7PEG-8

    Helps blend and thicken the formula.

  8. 8Polysorbate 20Fungal acne trigger

    Emulsifier. Fine for most, but a known fungal acne trigger.

  9. 9PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin
  10. 10Sodium Hyaluronate

    Holds many times its weight in water for plump, bouncy hydration.

  11. 11Ammonium Polyacryloyldimethyl Taurate

    Gives the product its texture.

  12. 12Hydroxyacetophenone
  13. 13Caprylyl Glycol

    Lightweight hydrator and solvent that helps ingredients absorb.

  14. 14Citric Acid

    Keeps the formula at a skin-friendly pH.

  15. 15Acetyl Dipeptide-1 Cetyl Ester

    Messenger molecules that support firmness and smoother-looking skin.