Multi-Peptide Serum for Hair Density

The Ordinary

Multi-Peptide Serum for Hair Density

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About this product

The Ordinary Multi-Peptide Serum for Hair Density is a misc. Our analysis of its 36 ingredients (27 low-risk) rates it Excellent (95/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Misc
Ingredients
36
Low-risk
27
Fragrance
Fragrance-free
Origin
Canada

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 8/9
Good for dry skin
Gluconolactone Calcium Gluconate Butylene Glycol Glycerin Scutellaria Baicalensis Root Extract Camellia Sinensis Leaf Extract Lactic Acid Larix Europaea Wood Extract
Caution for dry skin
Maltodextrin Xanthan Gum Glycerin Scutellaria Baicalensis Root Extract PPG-26-Buteth-26 Camellia Sinensis Leaf Extract Polysorbate 20 PEG-40 Hydrogenated Castor Oil Zinc Chloride
Oily/Acne-Prone Skin 3/0
Good for oily/acne-prone skin
Scutellaria Baicalensis Root Extract Camellia Sinensis Leaf Extract Zinc Chloride
Sensitive Skin 7/12
Good for sensitive skin
Acetyl Tetrapeptide-3 Apigenin Glycerin Scutellaria Baicalensis Root Extract Camellia Sinensis Leaf Extract Sodium Metabisulfite Zinc Chloride
Caution for sensitive skin
Glycine Gluconolactone Arginine Caffeine Butylene Glycol Glycerin PPG-26-Buteth-26 Camellia Sinensis Leaf Extract Sodium Benzoate PEG-40 Hydrogenated Castor Oil Lactic Acid Phenoxyethanol

Ingredients list

36 total
Lower hazard (1) Higher hazard (4)
All36 Skin Conditioning24 Fragrance12 Humectant9 Solvent7 Hair Conditioning7 Viscosity Controlling6 Emulsion Stabilising6 Masking5
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
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
Caffeine
(Fragrance, Skin Conditioning, Masking)
1
Biotinoyl Tripeptide-1
(Hair Conditioning)
1
Acetyl Tetrapeptide-3
(Skin Protecting)
Larix Europaea Wood Extract
(Humectant, Skin Conditioning)
Pisum Sativum Extract
(Skin Conditioning, Skin Protecting)
1
Scutellaria Baicalensis Root Extract
(Astringent, Humectant, Soothing)
Triticum Vulgare Germ Extract
(Skin Conditioning, Skin Protecting)
Glycine Soja Germ Extract
(Skin Conditioning Miscellaneous)
Trifolium Pratense Flower Extract
(Astringent, Fragrance)
1
B
Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber)
Good for Oily Skin
Good for Oily Skin
1
Apigenin
(Antioxidant, Hair Conditioning)
1
Oleanolic Acid
(Skin Conditioning)
1
A
Arginine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
A
Glycine
(Buffering Agent, Fragrance, Hair Conditioning, Skin Conditioning Agent Miscellaneous, Antistatic Agent, Skin Conditioning)
1
A
Calcium Gluconate
(Skin Conditioning, Humectant, Oral Care Agent)
4
Zinc Chloride
(Cosmetic Astringent, Cosmetic Biocide, Drug Astringent Oral Health Care Drugs, Oralcare Agent, Oral Health Care Drug, Oral Care Agent, Soothing)
4
B
Lactic Acid
(Exfoliant, Fragrance, Humectant, Ph Adjuster, Skin Conditioning Agent Humectant, Skin Conditioning, Buffering Agent)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Gluconolactone
(Fragrance, Humectant, Solvent)
1
A
Dextran
(Binding Agent, Bulking Agent, Binding, Viscosity Controlling)
1
A
Maltodextrin
(Absorbent, Binding Agent, Emulsion Stabilising, Film Forming, Hair Conditioning, Skin Conditioning, Suspending Agent Nonsurfactant, Binding)
1
A
Hydroxyethylcellulose
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Binding, Stabilising, Viscosity Controlling)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
1
Dimethyl Isosorbide
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
3
B
Polysorbate 20
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
2
A
PPG-26-Buteth-26
(Fragrance, Hair Conditioning, Skin Conditioning, Emulsifying, Surfactant)
3
B
PEG-40 Hydrogenated Castor Oil
(Fragrance, Emulsifying, Surfactant, Perfuming)
Fungal Acne
Fungal Acne Trigger
1
Trisodium Ethylenediamine Disuccinate
(Chelating Agent)
4
A
Sodium Metabisulfite
(Antioxidant, Preservative, Reducing)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
2
A
Chlorphenesin
(Cosmetic Biocide, Antimicrobial, Preservative)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Butylene Glycol
Skin Conditioning, Humectant
Glycerin
Humectant, Skin Protecting
Caffeine
Skin Conditioning
Acetyl Tetrapeptide-3
Skin Protecting
Larix Europaea Wood Extract
Humectant, Skin Conditioning
Pisum Sativum Extract
Skin Conditioning, Skin Protecting

Benefits

Good for oily/acne-prone skin

Concerns

Contains paraben
Not fungal acne (malassezia) safe
May not suit dry skin
May not suit sensitive skin

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
Caffeine
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceSkin conditioningMasking
Biotinoyl Tripeptide-1
Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioning
Acetyl Tetrapeptide-3
Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 Skin protecting
Larix Europaea Wood Extract
Humectant, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A HumectantSkin conditioning
Pisum Sativum Extract
Skin conditioning, Skin protecting
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningSkin protecting
Scutellaria Baicalensis Root Extract
Astringent, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 AstringentHumectantSoothing
Triticum Vulgare Germ Extract
Skin conditioning, Skin protecting
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningSkin protecting
Glycine Soja Germ Extract
Skin conditioning miscellaneous
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning miscellaneous
Trifolium Pratense Flower Extract
Astringent, Fragrance
Limited public safety data.Read moreShow less
EWG N/A AstringentFragrance
Apigenin
Antioxidant, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 AntioxidantHair conditioning
Oleanolic Acid
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Arginine
Fragrance, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceHair conditioningSkin conditioningAntistatic agentMasking
Glycine
Buffering agent, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Buffering agentFragranceHair conditioningSkin-conditioning agent -miscellaneousAntistatic agentSkin conditioning
+ 14 more — see the full ingredients list above
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
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
Camellia Sinensis Leaf Extract
Antimicrobial, Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B AntimicrobialAntioxidantAstringentEmollientHumectantMaskingOral care agentSkin conditioningSkin protectingTonicUv absorber Good for Oily Skin
Lactic Acid
Exfoliant, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 4 CIR B ExfoliantFragranceHumectantPh adjusterSkin-conditioning agent -humectantSkin conditioningBuffering agent Bad for Sensitive Skin
Polysorbate 20
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
PEG-40 Hydrogenated Castor Oil
Fragrance, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B FragranceEmulsifyingSurfactantPerfuming Fungal-acne trigger
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben

How to use

How to use

  • 1 Morning only: Apply as the last step of your AM routine, after moisturiser, and reapply every ~2 hours of sun exposure.
  • 2 Wear SPF the next day: Acids and retinoids increase sun sensitivity — daily sunscreen is a must while using this.

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

Trust & honesty

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

AHA (acid exfoliant) 5–10% (OTC)

OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.

Lactic Acid

INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.

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