Where to Start

We recommend starting with #1 The Strengthening Hydragel and #4 The Nourishing Crème as the building blocks of a skincare routine tailored to address the signs of sensitivity. In time, other key actives may be introduced to complete your at-home ritual.

Your Priority Formulations

Your Priority Formulations

#1 The Strengthening Hydragel

#1 The Strengthening Hydragel

$244.00

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Supports skin barrier defence with a proprietary Complex of B-Group vitamins, restoring luminosity as it comforts the complexion.
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#4 The Nourishing Crème

$238.00

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Restores skin barrier function with Intercellular Lipids and Ceramides, comforting the complexion while amplifying hydration.

Sensitivity – Reactive

Characterised by reactivity to certain active ingredients, and presenting as redness and stinging, dry, dehydrated skin, signs of irritation and inflammation.

Your Complete Ritual

In time, build towards introducing these formulations into your skincare routine to help support tolerance of new actives and boost the results of your priority formulations.

AM Ritual  

In the morning, three steps for daytime protection: strengthening skin resilience, antioxidant protection, and solar defence to address signs of solar ageing.

AM Ritual  

#1 The Strengthening Hydragel

#1 The Strengthening Hydragel

$244.00

Formulation Details Plus
Supports skin barrier defence with a proprietary Complex of B-Group vitamins, restoring luminosity as it comforts the complexion.
#2 The Brightening Light Crème
Bestseller

#2 The Brightening Light Crème

$222.00

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Defends skin from oxidative stress with the power of Vitamin C, brightening the complexion while soothing skin.
#3 The Brilliance Tinted Serum SPF50+
Bestseller

#3 The Brilliance Tinted Serum SPF50+

From $130.00

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Imparts an even, illuminated appearance while safeguarding skin with protective Zinc Fusion Technology.

“My skin looked calmer with less visible redness and irritation. [RATIONALE] has truly changed my skin!” – Olivia

Your PM Ritual  

In the evening, three steps for night-time nurture and repair: barrier fortification, maintaining skin pH, and renewed skin turnover to help correct signs of solar ageing.

Your PM Ritual  

#4 The Nourishing Cleanser
Bestseller

#4 The Nourishing Cleanser

From $88.00

Formulation Details Plus
Restores skin barrier function with Intercellular Lipids and Ceramides, comforting the complexion while removing all traces of the day.
#5 The Refining Milk Concentrate

#5 The Refining Milk Concentrate

$235.00

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Recalibrates skin pH balance with a unique Microbiome Complex, evening out skin tone and texture while promoting skin calmness.
RATIONALE 4 The Nourishing Creme Image 1

#4 The Nourishing Crème

$238.00

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Formulation Details Plus
Restores skin barrier function with Intercellular Lipids and Ceramides, comforting the complexion while amplifying hydration.

Protect by Day, Repair by Night

Our Philosophy

Based on our unique and profound understanding of skin anatomy and physiology, we have identified six pillars of skin health: a system of three collections for daytime protection, followed by three for overnight repair, providing all of the skin’s daily nutrients at the correct concentrations.

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