Catalyst Serum
30ml
Crystal Clarity
Organic Acids and Enzymes recalibrate skin pH to youthful acidity, enhancing radiance, firmness, hydration and clarity.
More
Skin Conditions
Blemishes
Alpha and Beta Hydroxy Acids gently recalibrate skin pH to a healthy acidic level, helping to reduce acne-causing bacteria and refine the appearance of pores whilst delivering instant luminosity. Salicylic Acid acts as an anti-inflammatory agent and penetrates deep into pores to decongest excess sebum, dirt and debris. Australian SolarRepair Botanicals regulate sebum production and reduce inflammation.
B
Dry Skin
Alpha and Beta Hydroxy Acids gently recalibrate skin pH to a healthy acidic level, boosting skin resilience, smoothness, hydration and clarity. Lactic Acid provides ultimate skin hydration and refines texture. Australian SolarRepair Botanicals replenish skin cells and increase hydration.
DS
Pigmentation
Alpha and Beta Hydroxy Acids gently recalibrate skin pH to a healthy acidic level, working to boost skin cell renewal and fade epidermal pigmentation, evening out skin tone, texture and achieving instant clarity and radiance. Lactic Acid targets and brightens hyperpigmentation and treats sun damage. Australian SolarRepair Botanicals help to boost natural solar defence mechanisms to prevent further pigmentation from the sun.
P
Rosacea
Alpha and Beta Hydroxy Acids gently recalibrate skin pH to a healthy acidic level, calming inflammation and strengthening its barrier function. Salicylic Acid acts as a powerful anti-inflammatory, reducing redness and irritation within the skin. Australian SolarRepair Botanicals help to boost skin resilience.
R
Sensitivity
Skin that is alkaline is often sensitive or sensitised. Alpha and Beta Hydroxy Acids gently recalibrate skin pH to a healthy acidic level, reducing irritation and strengthening barrier function. Australian SolarRepair Botanicals help to strengthen skin resilience.
S
Sun Damage
Alpha and Beta Hydroxy Acids gently recalibrate skin pH to a healthy acidic level which in turn, deactivates ageing enzymes that breakdown collagen and instead, activates youth enzymes that stimulate and promote collagen production. This results in a youthful, radiant complexion and increased skin firmness and hydration. Hydroxy Acids help to reduce inflammation within the skin and increase its resilience against sun damage. Australian SolarRepair Botanicals help to repair solar-induced DNA damage.
SD
Maroon Number Five

Catalyst Serum

This skin refining serum reactivates vital youth enzymes through recalibration of the skin's pH to youthful acidity, enhancing radiance, firmness, hydration and clarity. Australian SolarRepair Botanicals optimise solar repair process. Skin looks and feels immediately renewed, resurfaced and deeply luminous.

Benefits
  • Recalibrates skin to a healthy, acidic pH level 

  • Reactivates youth enzymes + deactivates ageing enzymes 

  • Improves skin tone and refines texture

  • Stimulates collagen synthesis 

  • Increases skin radiance 

  • Helps to decongest pores and prevent breakouts

  • Fades epidermal pigmentation

  • Promotes skin hydration

  • Reduces inflammation and improves skin barrier function 

Directions
  1. Smooth gently over face, neck, chest and back of hands each evening.

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

Active Ingredients

Alpha Hydroxy Acids (Lactic, Citric + Malic Acid) 

  • Recalibrates skin to a healthy, acidic pH 

  • Reduces ageing enzymes

  • Increases youth enzymes in the skin 

  • Stimulates collagen synthesis 

  • Increases skin hydration

  • Encourages skin cell renewal 

  • Brightens hyperpigmentation 

  • Treats and prevents the signs of sun damage


Beta Hydroxy Acid (Salicylic Acid) 

  • Decongests pores of dirt, debris and excess sebum 

  • Powerful anti-inflammatory, reduces redness and irritation 


Furanocoumarin

  • Reduces solar-induced inflammation 

  • Prevents oxidative damage within the skin 

  • Increases skin firmness and elasticity


Australian SolarRepair Botanicals

  • Enhances solar repair 

  • Strengthens barrier function

  • Reduces inflammation