#4 The Cleanser
#4 The Cleanser
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The Integrity Collection
Integrity. Fulfilment. Harmony.
The Story
A restorative evening ritual.
This luxurious crème formulation re-establishes skin integrity as all remains of the day are gently removed. Your evening cleansing routine elevated to a rewarding skin ritual.
The Promise
• Skin appears more hydrated
• Skin feels softer and more supple
• Comforts skin, soothing the appearance of irritation
• Gently cleanses to optimally prepare skin for night-time actives
The Ritual
Massage cleanser over dry or damp skin. Rinse thoroughly with tepid water.
Follow with your RATIONALE Essential Six formulations for night.
The Research
The skin’s outermost layer, the Stratum Corneum, exists to perform its vital barrier function.
An exquisitely balanced composition of lipids, comprised of ceramides, cholesterol and triglycerides comprise a living barrier that keeps skin moist and supple, helping to prevent infection by providing a shield against sunlight and other environmental aggressors.
These ‘living lipids’ are also crucial to cell-to-cell communication and biochemical signalling, forming a dynamic, interactive interface between the skin and the outside world.
Stratum Corneum lipids and proteins are synthesised in the skin’s upper layers, but the efficiency of this process diminishes with age and environmental damage, leading to skin dryness and sensitivity. Topical lipid supplementation through the processes of cleansing and moisturising can replenish and stabilise this biological defensive function.

bisma's take
the dreamiest cleanser that truly restores the skin barrier and resuscitates the skin back to a level of BALANCE. this was a universal favorite among the aqs. team + research group! it is one to truly experience and treat your skin with. goes on thick creamy but rinses completely clean!
the skin protocol
the skin protocol
the full ingredient list
the full ingredient list
about rationale
about rationale
Since 1992, RATIONALE has delivered Luminous Skin for Life with a luxurious suite of formulations and treatment experiences that enlighten and transform.
From their world-leading research laboratory at RATIONALE HQ in Kyneton, RATIONALE remains compelled to develop superlative formulations which offer unparalleled environmental skin protection and repair, restoring natural beauty and radiance.
The Essential Six Collections have been crafted around the six facets of skin luminosity:
Resilience, Vitality, Brilliance, Integrity, Clarity and Renewal.
Every RATIONALE Ritual is built upon these six facets and is tailored to your unique skin needs.
The ultimate expression of a profound understanding of human skin, world-leading Australian solar research and Skin Identical technology, this suite of definitive formulations works synergistically with skin—and each other—to offer nourishing protection by day and revitalizing repair at night, reanimating skin’s natural radiance.
The result is Luminous Skin for Life.
About Essential Six
The cornerstone of the RATIONALE range is the Essential Six Collections—a system built around the six facets of skin health and luminosity, and acknowledged worldwide as the definitive skincare for skin protection and repair, restoring natural beauty and radiance. Tailored to every individual’s skin, an Essential Six Ritual acts as the skin’s daily nutrition, providing all the Skin Resilience Boosters, Antioxidants, Environmental Protection, Barrier Fortification, pH Recalibration and Nightly Repair needed for skin to glow with radiant health. By day, the Essential Six ritual offers vital support to skin’s innate resilience, antioxidant nourishment to boost skin vitality, and delivers comprehensive protection from the entire Solar Constant—made up of ultraviolet, visible light and infrared radiation—as well as against pollution and other environmental aggressors. By night, the Essential Six evening routine works to repair and reverse daytime damage by replenishing the skin’s lipid barrier and recalibrating skin’s pH to a healthy, acidic level. Repair processes are supported for overnight rejuvenation and cellular regeneration for a visibly more luminous complexion by morning.
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