PRO Strength Lactic Pore Treatment

Peter Thomas Roth

Where to buy Possibly in stock

About this product

The Peter Thomas Roth PRO Strength Lactic Pore Treatment is a serums, essence, ampoule. Our analysis of its 27 ingredients (17 low-risk) rates it Excellent (98/100). 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
Serums, Essence, Ampoules
Ingredients
27
Low-risk
17
Fragrance
Fragrance-free
Origin
United States

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 4/6
Good for dry skin
Glycerin Propylene Glycol Lactic Acid Viola Tricolor Extract
Caution for dry skin
Punica Granatum Extract Lycium Barbarum Fruit Extract Glycerin Sodium Hydroxide Polysorbate 60 Vaccinium Myrtillus Fruit/Leaf Extract
Oily/Acne-Prone Skin 3/0
Good for oily/acne-prone skin
Punica Granatum Extract Lycium Barbarum Fruit Extract Vaccinium Myrtillus Fruit/Leaf Extract
Sensitive Skin 2/7
Good for sensitive skin
Glycerin Viola Tricolor Extract
Caution for sensitive skin
Disodium Phosphate Punica Granatum Extract Glycerin Propylene Glycol Benzoic Acid Potassium Sorbate Lactic Acid

Ingredients list

27 total
Lower hazard (1) Higher hazard (4)
All27 Skin Conditioning15 Fragrance8 Humectant5 Solvent4 Ph Adjuster4 Astringent4 Buffering Agent4 Masking3
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
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
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
Hydroxyethylcellulose
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Binding, Stabilising, Viscosity Controlling)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
Vitis Vinifera Seed Extract
(Anti Seborrheic, Antimicrobial, Antioxidant, Oral Care, Skin Protecting, Uv Absorber)
Citrus Limon Fruit Extract
(Fragrance, Skin Conditioning)
CITRUS AURANTIFOLIA FRUIT EXTRACT
(Skin Conditioning)
Citrus Aurantium Dulcis Fruit Extract
(Fragrance, Skin Conditioning)
Saccharum Officinarum Extract
(Moisturising, Skin Conditioning)
Acer saccharum extract
(Skin Conditioning)
Hamamelis Virginiana Water
(Astringent, Hair Conditioning, Skin Conditioning, Soothing)
Vaccinium Myrtillus Fruit/Leaf Extract
(Astringent, Refreshing, Skin Conditioning, Tonic)
1
Punica Granatum Extract
(Astringent, Masking, Tonic)
1
Aspalathus Linearis Extract
(Skin Conditioning)
1
Lycium Barbarum Fruit Extract
(Astringent, Hair Conditioning, Skin Conditioning)
Viola Tricolor Extract
(Emollient, Skin Protecting, Soothing)
1
Tilia Cordata Flower Extract
(Skin Conditioning)
1
Leuconostoc/Radish Root Ferment Filtrate
(Antidandruff Agent, Antimicrobial)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
3
A
Potassium Sorbate
(Fragrance, Preservative)
3
B
Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent)
1
B
Sodium Phosphate
(Buffering Agent)
1
B
Disodium Phosphate
(Buffering Agent, Anticorrosive, Fragrance, Ph Adjuster, Masking)
3
B
Polysorbate 60
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
3
B
Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
3
A
Benzoic Acid
(Fragrance, Ph Adjuster, Preservative, Bulking Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin

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

Lactic Acid
Exfoliant, Humectant
Glycerin
Humectant, Skin Protecting
Ethylhexylglycerin
Skin Conditioning
Vitis Vinifera Seed Extract
Antioxidant, Skin Protecting
Citrus Limon Fruit Extract
Skin Conditioning
CITRUS AURANTIFOLIA FRUIT EXTRACT
Skin Conditioning

Benefits

Good for oily/acne-prone skin

Concerns

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
Hydroxyethylcellulose
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingFilm formingViscosity increasing agentBindingStabilisingViscosity controlling
Ethylhexylglycerin
Deodorant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A DeodorantSkin conditioning
Vitis Vinifera Seed Extract
Anti seborrheic, Antimicrobial
Limited public safety data.Read moreShow less
EWG N/A Anti seborrheicAntimicrobialAntioxidantOral careSkin protectingUv absorber
Citrus Limon Fruit Extract
Fragrance, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A FragranceSkin conditioning
CITRUS AURANTIFOLIA FRUIT EXTRACT
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Citrus Aurantium Dulcis Fruit Extract
Fragrance, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A FragranceSkin conditioning
Saccharum Officinarum Extract
Moisturising, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A MoisturisingSkin conditioning
Acer saccharum extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Hamamelis Virginiana Water
Astringent, Hair conditioning
Limited public safety data.Read moreShow less
EWG N/A AstringentHair conditioningSkin conditioningSoothing
Vaccinium Myrtillus Fruit/Leaf Extract
Astringent, Refreshing
Limited public safety data.Read moreShow less
EWG N/A AstringentRefreshingSkin conditioningTonic
Punica Granatum Extract
Astringent, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 AstringentMaskingTonic
Aspalathus Linearis Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Lycium Barbarum Fruit Extract
Astringent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 AstringentHair conditioningSkin conditioning
Viola Tricolor Extract
Emollient, Skin protecting
Limited public safety data.Read moreShow less
EWG N/A EmollientSkin protectingSoothing
+ 7 more — see the full ingredients list above
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
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
Polysorbate 60
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
Propylene Glycol
Fragrance, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B FragranceHumectantSkin-conditioningagent - miscellaneousSolventViscosity decreasing agentSkin conditioningViscosity controlling Good for Dry Skin
Benzoic Acid
Fragrance, Ph adjuster
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A FragrancePh adjusterPreservativeBulking agentMasking Bad for Sensitive Skin

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning only: Apply as the last step of your AM routine, after moisturiser, and reapply every ~2 hours of sun exposure.
  • 3 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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