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NEW Rationale Catalyst Milk Concentrate

NEW Rationale Catalyst Milk Concentrate

Rejuvenate + Refine - Gently reawaken skin's own refining and retexturing processes for crystal clarity.

This rejuvenating Milk Concentrate employs powerful recalibrating Peptides to masterfully reactivate skin's pH back to a healthy, acidic level without irritation. Epidermal hydration is amplified while anti-inflammatory skin identical Zinc supports Australian Botanicals to fortify barrier function and enhance skin resilience.


- Calms, and rejuvenates reactive and sensitized skins

- Boosts skin resilience and solar defence mechanisms

- Recalibrates skin pH and inhibits bacteria in acne skins

- Prevents Trans-Epidermal Water Loss (TEWL) and enhances moisture transport

- Provides anti-bacterial properties to combat breakouts and acne

- Strengthens skin barrier function and reduces sensitivity


1. Apply 2-3 drops of RATIONALE Catalyst Milk Concentrate in the evening after cleansing. Smooth gently over face, neck and décolletage.

2. Directly follow with your RATIONALE night-time prescription.

Active Ingredients:

Zinc PCA:

- Powerful anti-inflammatory actives that work to reduce redness, strengthen barrier function and promote overall skin health.

- Moisturises the skin, promotes healing and reduces redness.

Amino Acids:

- Amplifies epidermal hydration and fortifies natural barrier function.

- Encourages healthy Glutathione production as a key antioxidant.

- Enhances skin resilience and strengthens barrier function.

- Rehydrates and locks in moisture by preventing TEWL.

- Enhances Natural Moisturising Factors (NMFs).

- Maintains skin smoothness and suppleness.


- Gently re-acidifies the stratum corneum.

- Restores healthy barrier function.

- Brighten epidermal pigmentation by normalizing the desquamation process.

Piroctone Olamine:

- Combats acne and sporadic breakouts by preventing the replication of bacteria on the skin's surface.

- Offers superior defence against Propionibacterium bacteria (P.acnes).

- Regulates sebum production in acne- or breakout-prone skin.

Australian Solar Repair Botanicals:

- Reduce inflammation within sensitive and irritated skin.

- Boosts natural Solar Repair protective functions and defence mechanisms.

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