Catalyst Serum

Step 5 of the Rationale Essential Six System. CATALYST reactivates 
vital skin enzymes through recalibration of skin pH, for a smoother, brighter and more luminous complexion.


Product Description

CATALYST SERUM reactivates vital youth enzymes through recalibration of the skin’s pH, enhancing radiance, firmness, hydration and clarity. By bringing skin pH back to youthful acidity, Pro-Vitality + Pro-Luminosity enzymes are activated. Australian PhotoRepair Botanicals provide unique rejuvenating abilities, reducing inflammation and reversing the signs of sun damage. Skin looks and feels immediately resurfaced, smooth and luminous.


- Improves skin tone and texture
- Helps unclog pores and prevent breakouts
- Fades epidermal pigmentation
- Promotes hydration levels
- Reduces inflammation
- Reduces oxidative damage maintaining healthy collagen and elastin synthesis
- Helps decrease sensitivity to topical irritants and improve stratum corneum barrier function
- Time release effect of acidic delivery for more efficient enzyme reactivation
- Increased hydration efficiency with incorporated immune modulators and Natural Moisturising Factors (NMFs)
- Reduction in irritancy is achieved through our new Isotropic Formulation.


-  Cleanse face and neck with  PROCERAMIDE CLEANSER or CATALYST CLEANSER each evening.
-  Smooth 1-2 drops of CATALYST SERUM onto face, neck, chest and backs of hands.
-  May cause a temporary tingling sensation on application.
-  Follow with DNA NIGHT CREAM for optimal nourishment and repair

Active Ingredients

Alpha Hydroxy Acids
- Lactic Acid
- Citric Acid
- Malic Acid

Beta Hydroxy Acid
- Salicylic Acid

- Active Constituents of native Australian flora, including Waratah, Banksia and Finger Lime Caviar
- Anti-inflammatory
- Reduces solar induced inflammation
- Reduces oxidative damage within the skin
- Maintains skin firmness and elasticity

Phytoceutical Extracts
Antioxidants: Juniper, Orange, Neroli, Grapefruit, Lemon
Anti-inflammatory: Clove, May Chang, Lavender, Lavandin, Geranium

Australian Photoprotective and Repair Botanical Extracts
Hydrophilic: Illawarra Flame Tree, Crown of Gold, Mountain Pepper Berry, Rosella, Waratah, Banksia, Native Snowflower, Davidson Plum, Kakadu Plum and Finger Lime Caviar
Lipophilic: Black Cypress, Blue Cypress, Native Sandalwood and Native Peach


"It literally knocks off a year of your age per week! I think it's the hero of the Essential Six!"Samantha (NSW)

"I've been using Catalyst for over 8 months now, it's the first time I used a serum. I've never had many skin issues so I never thought I needed active ingredients, but the visible difference is amazing!”- Kerrie (VIC)

“The proof of this product is in my skin. The tone is better and my skin is not sensitive anymore.” - Sally (NSW)

"All in all, this is MY holy grail of skin care products” -  Debbie (USA)


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Rationale Tax Message

As your order is to be delivered outside of Austraila, it may incur local customs duty, import taxes and/or fees determined by the destination country. The recipient of the shipment is responsible for all duties taxes and fees. If you refuse a shipment, you are responsible for the original shipping charges and any fees that are incurred on the package.