#4 The Nourishing Cleanser
Bestseller
#4 The Nourishing Cleanser
#4 The Nourishing Cleanser
#4 The Nourishing Cleanser
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Nourishing
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This collection delivers a proprietary Complex of Ceramides and Lipids, which restore and nurture the skin’s barrier function—for strengthened, hydrated skin.

#4 The Nourishing Cleanser (Formerly #4 The Cleanser)

This award-winning cleanser restores skin barrier function with Intercellular Lipids and Ceramides, comforting the complexion while removing all traces of the day.

Suitable for all skin types.

Use in the PM

Benefits
Plus
Minus
Gently cleanses
Nourishes
Amplifies suppleness
Targets
Plus
Minus
Redness
Dryness
Dehydration
Ingredients
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Minus
Aqua (Water), Propanediol, Cetearyl Alcohol, Ceteareth-20, Glycerin, 1,2-Hexanediol, Citrus Aurantium Dulcis (Orange) Peel Oil, Tocopherol, Aloe Barbadensis (Aloe Vera) Leaf Juice, Tocotrienols, Caprylhydroxamic Acid, Helianthus Annuus (Sunflower) Seed Oil, Santalum Spicatum (Sandalwood) Seed Oil, Butylene Glycol, Elaeis Guineensis (Palm) Oil, Mica, 7-Dehydrocholesterol, Ceteareth-25, Pentylene Glycol, Magnesium Aspartate, Zinc Gluconate, Ethylhexylglycerin, Phenoxyethanol, Cetyl Alcohol, Banksia Serrata Flower Extract, Barklya Syringifolia Flower/Leaf Extract, Brachychiton Acerifolius Flower Extract, Citrus Australasica Fruit Extract, Davidsonia Pruriens Fruit Extract, Hibiscus Sabdariffa Flower Extract, Melaleuca Alternifolia (Tea Tree) Leaf Extract, Santalum Acuminatum Fruit Extract, Tasmannia Lanceolata Fruit Extract, Telopea Speciosissima Flower/Leaf Extract, Terminalia Ferdinandiana Fruit Extract, Citric Acid, Behenic Acid, Ceramide NP, Cholesterol, Copper Gluconate, Potassium Sorbate, Ceramide NS, Glycine, Sodium Benzoate, Serine, Glutamic Acid, Ceramide AP, Ceramide EOP, Ceramide EOS, Aspartic Acid, Leucine, Caprooyl Phytosphingosine, Caprooyl Sphingosine, Alanine, Lysine, Arginine, Tyrosine, Phenylalanine, Proline, Threonine, Valine, Isoleucine, Histidine, Limonene, CI 77891 (Titanium Dioxide), CI 77491 (Iron Oxides).
Aqua (Water), Propanediol, Cetearyl Alcohol, Ceteareth-20, Glycerin, 1,2-Hexanediol, Citrus Aurantium Dulcis (Orange) Peel Oil, Tocopherol, Aloe Barbadensis (Aloe Vera) Leaf Juice, Tocotrienols, Caprylhydroxamic Acid, Helianthus Annuus (Sunflower) Seed Oil, Santalum Spicatum (Sandalwood) Seed Oil, Butylene Glycol, Elaeis Guineensis (Palm) Oil, Mica, 7-Dehydrocholesterol, Ceteareth-25, Pentylene Glycol, Magnesium Aspartate, Zinc Gluconate, Ethylhexylglycerin, Phenoxyethanol, Cetyl Alcohol, Banksia Serrata Flower Extract, Barklya Syringifolia Flower/Leaf Extract, Brachychiton Acerifolius Flower Extract, Citrus Australasica Fruit Extract, Davidsonia Pruriens Fruit Extract, Hibiscus Sabdariffa Flower Extract, Melaleuca Alternifolia (Tea Tree) Leaf Extract, Santalum Acuminatum Fruit Extract, Tasmannia Lanceolata Fruit Extract, Telopea Speciosissima Flower/Leaf Extract, Terminalia Ferdinandiana Fruit Extract, Citric Acid, Behenic Acid, Ceramide NP, Cholesterol, Copper Gluconate, Potassium Sorbate, Ceramide NS, Glycine, Sodium Benzoate, Serine, Glutamic Acid, Ceramide AP, Ceramide EOP, Ceramide EOS, Aspartic Acid, Leucine, Caprooyl Phytosphingosine, Caprooyl Sphingosine, Alanine, Lysine, Arginine, Tyrosine, Phenylalanine, Proline, Threonine, Valine, Isoleucine, Histidine, Limonene, CI 77891 (Titanium Dioxide), CI 77491 (Iron Oxides).

New Names, Same Favourite Formulations

In the coming weeks and months, you’ll begin to see a shift in how our formulations and collections are named and presented on our packaging.

This change is small, but significant—and intended to support client navigation, education, and discoverability when it comes to exploring the RATIONALE range. It’s an evolution we’re proud to be bringing you on.

Learn More

The Results

77%

reported improved skin calmness and nourishment.

73%

noticed increased suppleness.

73%

experienced enhanced hydration.

*Based on a 28-day trial with 20 participants.

The Ritual

Dispense 1-2 pumps into palm.

Applying to the face, massage cleanser over dry or damp skin.

Rinse thoroughly with tepid water.

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.

Foaming cleansers tend to dry and strip the skin of precious nutrients and lipids, increasing dehydration and reactivity. The correctly balanced combination of intercellular lipids, vitamins and botanicals can gently remove daily debris, including sunscreens and pollution, while augmenting and reinforcing Stratum Corneum barrier structures.

The Ingredient Complexes

Ceramides
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Minus

Fortify skin barrier function and integrity, promoting overall hydration and a smoother complexion.

Multi-Vitamin Complex
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Replenishes moisture in the skin, leading to a more nourished and radiant appearance.

Intercellular Lipids
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Minus

Support the skin barrier to enhance overall hydration and a more moisturised complexion.

Sweet Orange Extract
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Minus

Fortifies the skin’s integrity with powerful strengthening and anti-bacterial properties.