Catalyst Cleanser | RATIONALE
Catalyst Cleanser
Purity + Clarity
This radiance-boosting cleanser combines Organic Acids with nourishing Peptides, Ceramides and Australian SolarRepair Botanicals to purify, balance and brighten.
Skin Conditions
Maroon Letter C

Catalyst Cleanser

This radiance-boosting cleanser is fortified with skin-refining Enzymes, super hydrating Peptides, nourishing Ceramides and Australian SolarRepair Botanicals to gently purify, balance and brighten skin day by day. Organic Acids gently smooth and refine, recalibrating skin pH to accelerate cellular renewal. Skin looks and feels radiant, resurfaced and deeply luminous.

  • Purifies and rebalances skin

  • Regulates oil flow

  • Restores barrier function to alleviate skin dryness and sensitivity

  • Gently cleanses while reducing inflammation 

  • Unclogs pores and inhibits acne-causing bacteria

  1. Massage one to two pumps over damp skin to create a light, conditioning lather. Rinse thoroughly with tepid water. 

  2. Use in conjunction with your prescribed RATIONALE Essential Six formulas for optimal overnight rejuvenation and repair.

If you are unsure about how this product fits in to your RATIONALE skincare routine, our expert Team of Online Skin Consultants is here to help.

Active Ingredients

Alpha + Beta Hydroxy Acids 

  • Recalibrates skin pH to healthy acidic levels

  • Increases hydration + encourages cell renewal 

  • Decongests + refines pores

  • Reduces inflammation

  • Inhibits acne-causing bacteria 

Oat Amino Acids

  • Gently dissolves dirt, debris, sunscreen & make-up 

  • Anti-inflammatory + anti-microbial to prevent breakouts 

Acetyl Hexapeptide-37 and Hexapeptide-10 

  • Reduces inflammation in hyper sebaceous skin


  • Elicits natural cleansing mechanisms within the skin 

  • Augments skin hydration

  • Prevents Trans-Epidermal Water Loss (TEWL) 

  • Strengthens the skin's barrier function 

Amino Acids

  • Boost skin hydration + restores barrier function

Australian SolarRepair Botanical Extracts

  • Antibacterial properties 

  • Anti-inflammatory functions

  • Regulates sebum production