Peter Thomas Roth Oily Problem Skin Instant Mineral SPF 30

Peter Thomas Roth

Peter Thomas Roth Oily Problem Skin Instant Mineral SPF 30

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About this product

The Peter Thomas Roth Oily Problem Skin Instant Mineral SPF 30 is a sunscreen. Our analysis of its 32 ingredients (26 low-risk) rates it Excellent (88/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin.

Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Sunscreen
Ingredients
32
Low-risk
26
Fragrance
Fragrance-free
Origin
United States
SPF
30 · blocks 96.7% UVB

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 2/7
Good for dry skin
Aluminum Hydroxide Butylene Glycol
Caution for dry skin
Maltodextrin Stearic Acid Illite Kaolin Salicylic Acid Aluminum Starch Octenylsuccinate Silica
Oily/Acne-Prone Skin 2/0
Good for oily/acne-prone skin
Salicylic Acid Salix Alba (Willow) Bark Extract
Sensitive Skin 5/8
Good for sensitive skin
Zinc Oxide Ascorbyl Palmitate Aluminum Hydroxide Kaolin Tocopheryl Acetate
Caution for sensitive skin
Stearic Acid Ascorbyl Palmitate Carmine Butylene Glycol Salicylic Acid Retinyl Palmitate (Vitamin A) Potassium Sorbate Aluminum Powder

Ingredients list

32 total
Lower hazard (1) Higher hazard (9)
All32 Cosmetic Colorant11 Skin Conditioning8 Opacifying6 Viscosity Controlling6 Fragrance5 Colorant5 Absorbent5 Anticaking Agent5
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
3
Titanium/Titanium Dioxide
(Cosmetic Colorant, Opacifying)
2
3
Zinc Oxide
(Bulking Agent, Cosmetic Colorant, Skin Protecting, Sunscreen Agent)
Good for Oily Skin
Good for Oily Skin
1
Illite
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent)
1
2
A
Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling)
2
B
Barium Sulfate
(Cosmetic Colorant, Opacifying)
1
A
Tapioca Starch
(Viscosity Increasing Agent)
2
B
Aluminum Starch Octenylsuccinate
(Absorbent, Anticaking Agent, Viscosity Increasing Agent, Viscosity Controlling)
1
A
Aluminum Hydroxide
(Emollient, Humectant, Opacifying, Skin Protecting, Viscosity Controlling)
1
A
Stearic Acid
(Fragrance, Sufactant, Emulsifying, Surfactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Stearic Acid., Emulsion Stabilising, Masking, Refatting)
Bad for Oily Skin
Bad for Oily Skin
Fungal Acne
Fungal Acne Trigger
4
B
Salicylic Acid
(Antiacne Agent, Antidandruff Agent, Corn/Callus/Wart Remover, Denaturant, Exfoliant, Fragrance, Hair Conditioning, Skin Conditioning, Keratolytic, Masking, Preservative)
Good for Oily Skin
Good for Oily Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Salix Alba (Willow) Bark Extract
9
Retinyl Palmitate (Vitamin A) Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
1
A
Ascorbyl Palmitate
(Antioxidant, Masking)
Fungal Acne
Fungal Acne Trigger
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
1
A
Dimethicone/Vinyl Dimethicone Crosspolymer
(Viscosity Controlling)
1
A
Magnesium Myristate
(Anticaking Agent, Slip Modifier, Viscosity Increasing Agent, Opacifying, Viscosity Controlling)
1
A
Kaolin
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Skin Protecting, Slip Modifier)
1
A
Maltodextrin
(Absorbent, Binding Agent, Emulsion Stabilising, Film Forming, Hair Conditioning, Skin Conditioning, Suspending Agent Nonsurfactant, Binding)
1
Triethoxycaprylylsilane
(Binding Agent, Binding)
1
Water
(Solvent)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
2
A
Chlorphenesin
(Cosmetic Biocide, Antimicrobial, Preservative)
3
A
Potassium Sorbate
(Fragrance, Preservative)
2
A
Tetrasodium EDTA
(Chelating Agent)
1
Bismuth Oxychloride
(Colorant, Cosmetic Colorant)
2
Iron Oxides
(Colorant, Cosmetic Colorant)
1
Manganese Violet
(Colorant, Cosmetic Colorant)
2
5
Chromium Oxide Greens
(Cosmetic Colorant, Hair Dyeing)
2
4
Chromium Hydroxide Green
(Cosmetic Colorant, Hair Dyeing)
1
4
Ferric Ferrocyanide
(Colorant, Cosmetic Colorant)
4
9
Aluminum Powder
(Colorant, Cosmetic Colorant)
1
Carmine
(Cosmetic Colorant, Fragrance)

My Ingredient Notes

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Key ingredients

Zinc Oxide
Skin Protecting
Aluminum Hydroxide
Emollient, Humectant
Salicylic Acid
Exfoliant, Skin Conditioning
Ascorbyl Palmitate
Antioxidant
Tocopheryl Acetate
Antioxidant, Skin Conditioning
Kaolin
Skin Protecting

Benefits

Good for oily/acne-prone skin

Concerns

Not fungal acne (malassezia) safe
Retinyl Palmitate (Vitamin A) — higher EWG
Aluminum Powder — higher EWG
May not suit dry skin
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

Titanium/Titanium Dioxide
Cosmetic colorant, Opacifying
Low-to-moderate hazard.Read moreShow less
EWG 1–3 Cosmetic colorantOpacifying
Illite
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1 AbrasiveAbsorbentAnticaking agentBulking agent
Silica
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1–2 CIR A AbrasiveAbsorbentAnticaking agentBulking agentOpacifyingViscosity controlling
Barium Sulfate
Cosmetic colorant, Opacifying
Low-hazard ingredient.Read moreShow less
EWG 2 CIR B Cosmetic colorantOpacifying
Tapioca Starch
Viscosity increasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Viscosity increasing agent
Aluminum Starch Octenylsuccinate
Absorbent, Anticaking agent
Low-hazard ingredient.Read moreShow less
EWG 2 CIR B AbsorbentAnticaking agentViscosity increasing agentViscosity controlling
Aluminum Hydroxide
Emollient, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientHumectantOpacifyingSkin protectingViscosity controlling
Salix Alba (Willow) Bark Extract
Other
Low-hazard ingredient.Read moreShow less
EWG 1
Dimethicone/Vinyl Dimethicone Crosspolymer
Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Viscosity controlling
Magnesium Myristate
Anticaking agent, Slip modifier
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Anticaking agentSlip modifierViscosity increasing agentOpacifyingViscosity controlling
Kaolin
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AbrasiveAbsorbentAnticaking agentBulking agentOpacifyingSkin protectingSlip modifier
Maltodextrin
Absorbent, Binding agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AbsorbentBinding agentEmulsion stabilisingFilm formingHair conditioningSkin conditioningSuspending agent - nonsurfactantBinding
Triethoxycaprylylsilane
Binding agent, Binding
Low-hazard ingredient.Read moreShow less
EWG 1 Binding agentBinding
Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Chlorphenesin
Cosmetic biocide, Antimicrobial
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A Cosmetic biocideAntimicrobialPreservative
+ 8 more — see the full ingredients list above
Zinc Oxide
Bulking agent, Cosmetic colorant
Low-to-moderate hazard.Read moreShow less
EWG 2–3 Bulking agentCosmetic colorantSkin protectingSunscreen agent Good for Oily Skin
Stearic Acid
Fragrance, Sufactant
Potentially comedogenic - can block poresRead moreShow less
EWG 1 CIR A FragranceSufactantEmulsifyingSurfactantsurfactant-cleansing agent is included as a function for the soap form of stearic acid.Emulsion stabilisingMaskingRefatting Bad for Oily SkinFungal-acne trigger
Salicylic Acid
Antiacne agent, Antidandruff agent
Skin irritation can occur at high concentrationRead moreShow less
EWG 4 CIR B Antiacne agentAntidandruff agentCorn/callus/wart removerDenaturantExfoliantFragranceHair conditioningSkin conditioningKeratolyticMaskingPreservative Good for Oily SkinBad for Sensitive Skin
Retinyl Palmitate (Vitamin A)
Other
Higher-hazard ingredient.Read moreShow less
EWG 9 Good for Dry SkinFungal-acne trigger
Ascorbyl Palmitate
Antioxidant, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AntioxidantMasking Fungal-acne trigger
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Chromium Oxide Greens
Cosmetic colorant, Hair dyeing
Moderate-hazard ingredient.Read moreShow less
EWG 2–5 Cosmetic colorantHair dyeing
Aluminum Powder
Colorant, Cosmetic colorant
Higher-hazard ingredient.Read moreShow less
EWG 4–9 ColorantCosmetic colorant

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

Pregnancy & breastfeeding

Contains ingredients some choose to avoid or double-check while pregnant or nursing.

Often avoided
Retinoids (Vitamin A) (Retinyl Palmitate (Vitamin A))

Topical retinoids (retinol, retinaldehyde, retinyl esters) are widely advised against in pregnancy as a precaution. The strongest evidence is for ORAL retinoids; topical absorption is low, but most clinicians err on the side of caution.

Use with caution
BHA (salicylic) (Salicylic Acid)

Low-strength topical salicylic acid (BHA) is generally considered fine. Caution is usually reserved for high-strength leave-on products and salicylic peels.

This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.

Effective levels — general guide

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

Retinoids (Vitamin A) 0.01–1%

Most studied between 0.1% and 1%. Higher is not automatically better — irritation climbs with dose, so a well-formulated lower strength is often the sweet spot.

Retinyl Palmitate (Vitamin A)

Vitamin C (ascorbic) 5–20%

L-ascorbic acid is usually used at 5–20% (around 10–15% is common). Above ~20% adds little and tends to irritate more; it also needs a low pH to work.

Ascorbyl Palmitate

BHA (salicylic) 0.5–2%

Salicylic acid is OTC-capped at 2%; 0.5–2% is the usual leave-on range. Much below that it acts more as a soothing agent than an exfoliant.

Salicylic 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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