Instant Mineral SPF 45

Peter Thomas Roth

Where to buy Possibly in stock

About this product

The Peter Thomas Roth Instant Mineral SPF 45 is a sunscreen. Our analysis of its 16 ingredients (14 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to dry and sensitive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Sunscreen
Ingredients
16
Low-risk
14
Fragrance
Fragrance-free
Origin
United States
SPF
45 · blocks 97.8% 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 2/2
Good for dry skin
Aluminum Hydroxide Butylene Glycol
Caution for dry skin
Stearic Acid Silica
Oily/Acne-Prone Skin No data
Sensitive Skin 4/4
Good for sensitive skin
Zinc Oxide Ascorbyl Palmitate Aluminum Hydroxide Tocopheryl Acetate
Caution for sensitive skin
Stearic Acid Ascorbyl Palmitate Butylene Glycol Potassium Sorbate

Ingredients list

16 total
Lower hazard (1) Higher hazard (3)
All16 Skin Conditioning6 Opacifying4 Masking3 Fragrance3 Viscosity Controlling3 Preservative2 Solvent2 Antioxidant2
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
3
Titanium Dioxide
(Cosmetic Colorant, Opacifying, Sunscreen Agent, Uv Absorber)
Good for Sensitive Skin
Good for Sensitive Skin
2
3
Zinc Oxide
(Bulking Agent, Cosmetic Colorant, Skin Protecting, Sunscreen Agent)
Good for Oily Skin
Good for Oily Skin
1
2
A
Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, 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
1
Polymethylsilsesquioxane
(Opacifying)
1
Triethoxycaprylylsilane
(Binding Agent, Binding)
Retinyl Palmitate
(Skin Conditioning, Skin Conditioning Miscellaneous)
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
1
A
Ascorbyl Palmitate
(Antioxidant, Masking)
Fungal Acne
Fungal Acne Trigger
salix alba bark extract
(Astringent, Hair Conditioning, Skin Conditioning, Soothing, Tonic)
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)

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

Titanium Dioxide
Uv Absorber
Zinc Oxide
Skin Protecting
Aluminum Hydroxide
Emollient, Humectant
Retinyl Palmitate
Skin Conditioning
Tocopheryl Acetate
Antioxidant, Skin Conditioning
Ascorbyl Palmitate
Antioxidant

Benefits

No standout benefits flagged for this product.

Concerns

Not fungal acne (malassezia) safe

Ingredients explained

Silica
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1–2 CIR A AbrasiveAbsorbentAnticaking agentBulking agentOpacifyingViscosity controlling
Aluminum Hydroxide
Emollient, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientHumectantOpacifyingSkin protectingViscosity controlling
Polymethylsilsesquioxane
Opacifying
Low-hazard ingredient.Read moreShow less
EWG 1 Opacifying
Triethoxycaprylylsilane
Binding agent, Binding
Low-hazard ingredient.Read moreShow less
EWG 1 Binding agentBinding
Retinyl Palmitate
Skin conditioning, Skin conditioning miscellaneous
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningSkin conditioning miscellaneous
salix alba bark extract
Astringent, Hair conditioning
Limited public safety data.Read moreShow less
EWG N/A AstringentHair conditioningSkin conditioningSoothingTonic
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
Potassium Sorbate
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A FragrancePreservative
Tetrasodium EDTA
Chelating agent
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A Chelating agent
Titanium Dioxide
Cosmetic colorant, Opacifying
Low-to-moderate hazard.Read moreShow less
EWG 1–3 Cosmetic colorantOpacifyingSunscreen agentUv absorber Good for Sensitive Skin
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
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
Ascorbyl Palmitate
Antioxidant, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AntioxidantMasking Fungal-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

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)

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.

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 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

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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