200ML
100ML
#4 The Cleanser
#4 The Cleanser
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Step Four: Integrity
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This collection delivers a proprietary Complex of Ceramides and Lipids, which restore and nurture the skin’s barrier function.

#4 The Cleanser

Gentle Cream 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.

Benefits
Plus
Minus
Gently cleanses
Nourishes
Amplifies suppleness
Targets
Plus
Minus
Dryness
Ingredients
Plus
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).

Enjoy a gifted Calming Milk Essence with all orders.

Book a Complimentary Consultation

Connect with an Online Skin Therapist.

 Take the Skin Questionnaire

Discover your personalised skincare Ritual.
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).

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 Results

At RATIONALE, we’re pleased to report the proportion of participants who observed the following improvements in their skin after use of #4 The Cleanser* :

77% reported ↑ Skin calmness and nourishment
73% reported ↑ Suppleness
73% reported ↑ Hydration
*Based on a 28-day trial with 20 participants

The Integrity Actives

Skin Identical Ceramide Complex supports natural cleansing mechanisms, while amplifying hydration and increasing Natural Moisturising Factors (NMFs) to fortify barrier function and skin resilience

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Opposite: ‘Intercellular Lipids’
Illustration by Jessie Milligan

Ingredients: 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).

The Integrity Actives

Intercellular Lipids (Phospholipids + Cholesterol) nourish and reinforce the skin, replenishing natural lipid barrier reserves and preventing Trans-Epidermal Water Loss (TEWL) to encourage moisturising and healing processes.

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Opposite: ‘Intercellular Lipids’
Illustration by Jessie Milligan

Ingredients: 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).

The Integrity Actives

Amino Acids boost moisture retention, promoting elasticity.

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Opposite: ‘Intercellular Lipids’
Illustration by Jessie Milligan

Ingredients: 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).

The Integrity Actives

Vitamin E (Tocopherols + Tocotrienols) enhances the synthesis of NMFs. A powerful skin antioxidant, Vitamin E calms and promotes natural healing processes.

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Opposite: ‘Intercellular Lipids’
Illustration by Jessie Milligan

Ingredients: 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).

The Integrity Actives

Vitamin D3 PreCursor is activated by sunlight to simultaneously improve skin barrier function and protect against UV-induced damage and cellular senescence.

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Opposite: ‘Intercellular Lipids’
Illustration by Jessie Milligan

Ingredients: 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).

The Integrity Actives

Australian Botanicals have the potential to promote a luminous, healthy complexion through calming the skin and increasing micro-circulation.

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Opposite: ‘Intercellular Lipids’
Illustration by Jessie Milligan

Ingredients: 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).

The Ritual

Dispense 1-2 pumps into palm.

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

Rinse thoroughly with tepid water.

To discover how to introduce this formulation into your RATIONALE Ritual, connect with our Team of Online Skin Consultants.

Discover More

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.

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