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Treatment serums.

Step 3 of three. Twice a day, nothing on top, no moisturiser and no downtime — you can wear one to work the same day you start.

Not sure which Complex Serum is right for you?Compare formulas by skin concern, or let Iris read your photos.
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18 of 18 serums

Every complex serumWhichever you pick, these are true.

  • Acid freeNo AHA, no BHA, no retinol.
  • No downtimeNothing to recover from, nothing to hide.
  • Sensitive skinFormulated for skin that reacts.
  • Active formulasProfessional strength, brought home.
  • Pregnancy safeUse it right through pregnancy.