#5 The Milk Concentrate

Rationale

Where to buy Possibly in stock

About this product

The Rationale #5 The Milk Concentrate is a serums, essence, ampoule. Our analysis of its 68 ingredients (49 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to dry skin.

Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
68
Low-risk
49
Fragrance
Fragrance-free
Origin
Australia

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 12/8
Good for dry skin
C10-18 Triglycerides Glutamic Acid Cetyl Alcohol Octyldodecanol Caprylyl Glycol Butylene Glycol Glycerin Cholesterol Polyglyceryl-6 Distearate Jojoba Esters Histidine Zinc PCA
Caution for dry skin
Behenic Acid Cetyl Alcohol Sodium Stearoyl Glutamate Xanthan Gum Glycerin Polyglyceryl-3 Beeswax Polyglyceryl-6 Distearate Ceteareth-25
Oily/Acne-Prone Skin No data
Sensitive Skin 3/28
Good for sensitive skin
Glycerin Jojoba Esters Copper Gluconate
Caution for sensitive skin
Glycine Glutamic Acid Lysine Litsea Cubeba Fruit Oil Juniperus Mexicana Oil Valine Serine Cetyl Alcohol Pelargonium Graveolens Oil Aspartic Acid Alanine Arginine Octyldodecanol Isoleucine Butylene Glycol Glycerin Tyrosine Threonine Phenylalanine Phenylpropanol Proline Histidine Citric Acid Sodium Benzoate Potassium Sorbate Phenoxyethanol Limonene Citral

Ingredients list

68 total
Lower hazard (1) Higher hazard (7)
All68 Skin Conditioning62 Fragrance30 Hair Conditioning27 Masking15 Antistatic Agent13 Solvent10 Perfuming10 Humectant8
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
A
Octyldodecanol
(Fragrance, Skin Conditioning, Emollient, Perfuming, Solvent)
1
Methylpropanediol
(Solvent)
1
C10-18 Triglycerides
(Emollient, Skin Conditioning, Solvent)
1
B
Polyglyceryl-6 Distearate
(Skin Conditioning, Emollient, Emulsifying, Surfactant)
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
1
B
Sodium Stearoyl Glutamate
(Hair Conditioning, Skin Conditioning, Surfactant Cleansingagent, Emulsifying)
1
A
Jojoba Esters
(Emollient, Moisturising, Skin Conditioning, Soothing)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
3
Zinc PCA
(Skin Conditioning, Humectant)
1
A
Cetyl Alcohol
(Emulsion Stabilising, Fragrance, Opacifying, Emulsifying, Surfactant, Foam Boosting, Viscosity Increasing Agent, Emollient, Masking, Viscosity Controlling)
1
B
Polyglyceryl-3 Beeswax
(Emulsifying, Surfactant)
Melaleuca Alternifolia Leaf
(Abrasive, Skin Conditioning)
Mentha Australis Leaf Extract
(Skin Conditioning)
1
Phenylpropanol
(Masking, Perfuming, Solvent)
2
Piroctone Olamine
(Cosmetic Biocide, Preservative)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
Yeast Extract
(Skin Conditioning)
Citrus Australasica Fruit Extract
(Antioxidant, Humectant, Skin Conditioning)
Citrus Aurantium Dulcis Oil
(Fragrance)
3
B
Ceteareth-25
(Cleansing, Emulsifying, Surfactant)
Citrus Aurantium Bergamia Fruit Oil
(Fragrance, Perfuming)
citrus grandis peel oil
(Fragrance, Perfuming, Skin Conditioning)
Citrus Limon Peel Oil
(Fragrance, Perfuming, Skin Conditioning)
1
Litsea Cubeba Fruit Oil
(Masking, Perfuming, Tonic)
Citrus Aurantium Bergamia Leaf Oil
(Astringent)
1
Juniperus Mexicana Oil
(Fragrance, Masking)
1
Pelargonium Graveolens Oil
(Masking, Perfuming)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
Citrus Aurantium Amara Flower Oil
(Fragrance, Skin Conditioning)
Eugenia Caryophyllus Leaf Oil
(Fragrance, Perfuming, Skin Conditioning, Tonic)
1
A
Magnesium Aspartate
(Skin Conditioning)
3
Zinc Gluconate
(Cosmetic Biocide, Skin Conditioning, Deodorant)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
1
Polylysine
(Film Forming, Hair Conditioning)
1
Soy Amino Acids
(Hair Conditioning, Skin Conditioning)
3
A
Potassium Sorbate
(Fragrance, Preservative)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
Behenic Acid
(Opacifying, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Behenic Acid., Emulsifying)
Fungal Acne
Fungal Acne Trigger
1
Ceramide NP
(Hair Conditioning, Skin Conditioning)
1
A
Cholesterol
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Emollient, Emulsifying, Stabilising, Viscosity Controlling)
2
Copper Gluconate
(Skin Conditioning, Skin Protecting)
Ceramide NS
(Hair Conditioning, Skin Conditioning)
1
A
Glycine
(Buffering Agent, Fragrance, Hair Conditioning, Skin Conditioning Agent Miscellaneous, Antistatic Agent, Skin Conditioning)
1
A
Serine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
A
Glutamic Acid
(Fragrance, Hair Conditioning, Humectant, Antistatic Agent)
Ceramide AP
(Hair Conditioning, Skin Conditioning)
Ceramide EOP
(Hair Conditioning, Skin Conditioning)
Ceramide EOS
(Hair Conditioning, Skin Conditioning)
1
A
Aspartic Acid
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
A
Leucine
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
A
Caprooyl Phytosphingosine
(Hair Conditioning, Skin Conditioning)
A
Caprooyl Sphingosine
(Hair Conditioning, Skin Conditioning)
1
A
Alanine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
A
Lysine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent)
1
A
Arginine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
A
Tyrosine
(Fragrance, Hair Conditioning, Proprietary, Skin Conditioning Agent Miscellaneous, Antistatic Agent, Masking, Skin Conditioning)
1
A
Phenylalanine
(Fragrance, Hair Conditioning, Skin Conditioning)
1
A
Proline
(Fragrance, Hair Conditioning, Skin Conditioning)
1
A
Threonine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Hair Waving Or Straightening)
1
A
Valine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
A
Isoleucine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent)
1
A
Histidine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Humectant)
6
Limonene
(Deodorant, Perfuming, Solvent)
Allergens
Allergens
7
Citral
(Flavoring Agent, Fragrance, Masking)
Allergens
Allergens

My Ingredient Notes

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Key ingredients

Octyldodecanol
Skin Conditioning, Emollient
C10-18 Triglycerides
Emollient, Skin Conditioning
Polyglyceryl-6 Distearate
Skin Conditioning, Emollient
Glycerin
Humectant, Skin Protecting
Caprylyl Glycol
Skin Conditioning, Emollient
Sodium Stearoyl Glutamate
Skin Conditioning

Benefits

Good for dry skin

Concerns

Contains paraben
Contains eu allergen
Not fungal acne (malassezia) safe
Citral — higher EWG
May not suit sensitive skin

EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Octyldodecanol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningEmollientPerfumingSolvent
Methylpropanediol
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
C10-18 Triglycerides
Emollient, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 EmollientSkin conditioningSolvent
Polyglyceryl-6 Distearate
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmollientEmulsifyingSurfactant
Caprylyl Glycol
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningEmollientHumectant
Sodium Stearoyl Glutamate
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningSkin conditioningSurfactant - cleansingagentEmulsifying
Jojoba Esters
Emollient, Moisturising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientMoisturisingSkin conditioningSoothing
Xanthan Gum
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingSkin conditioningSurfactant -emulsifying agentViscosity increasing agentBindingGel formingViscosity controlling
Zinc PCA
Skin conditioning, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 3 Skin conditioningHumectant
Cetyl Alcohol
Emulsion stabilising, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingFragranceOpacifyingEmulsifyingSurfactantFoam boostingViscosity increasing agentEmollientMaskingViscosity controlling
Polyglyceryl-3 Beeswax
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B EmulsifyingSurfactant
Melaleuca Alternifolia Leaf
Abrasive, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A AbrasiveSkin conditioning
Mentha Australis Leaf Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
+ 46 more — see the full ingredients list above
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Citric Acid
Chelating agent, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 2 CIR A Chelating agentFragrancePh adjusterBuffering agentMasking Bad for Sensitive Skin
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Behenic Acid
Opacifying, Sufactantsurfactant-cleansing agent is included as a function for the soap form of behenic acid.
Low-hazard ingredient.Read moreShow less
EWG 1 OpacifyingSufactantsurfactant-cleansing agent is included as a function for the soap form of behenic acid.Emulsifying Fungal-acne trigger
Limonene
Deodorant, Perfuming
Moderate-hazard ingredient.Read moreShow less
EWG 6 DeodorantPerfumingSolvent Allergens
Citral
Flavoring agent, Fragrance
Higher-hazard ingredient.Read moreShow less
EWG 7 Flavoring agentFragranceMasking Allergens

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning & evening: Suitable for both AM and PM use.

General guidance from this product's category and active ingredients — always follow the directions on the package.

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