Peter Thomas Roth Max Mineral Naked Broad Spectrum SPF 45

Peter Thomas Roth Max Mineral Naked Broad Spectrum SPF 45

SPF 45Efficacy90/100IrritancyMedium·3 UV filters
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Works for

2 of 2 advertised claims delivered

Sun protection
SPF 45 · 3 UV filters
Broad spectrum
SPF 45Broad spectrumMineral + chemical filtersWater-resistantTinted

This product offers a good level of protection against both UVB and UVA rays.

This sunscreen uses organic (so-called "chemical") sunscreen filters. Organic, or "chemical" filters usually provide reliable sun protection and rarely leave a white cast. Sunscreens with organic filters can sting eyes.

This product can be considered "reef safe" because it does not contain the UV filters (oxybenzone and octinoxate) that can be harmful to coral reefs when present in the water in high concentrations.

UV spectrum
UVB290–320 nmUVA II320–340 nmUVA I340–400 nm
Butyloctyl Salicylate
Titanium Dioxide
Zinc Oxide
FilterCoverageWhat it doesEst. amount
Butyloctyl SalicylateUVBA synthetic ester of salicylic acid that is used to help disperse pigments and boost effectiveness of sunscreen ingredients. It is able to absorb UV light (working as an organic, or chemical filter), but is not approved as a sunscreen ingredient on its own~8.7–10.6%
Titanium Dioxide Mineral UVBUVA2 Photo-stable Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin1.93%
Zinc Oxide Mineral UVBUVA Photo-stable A broad spectrum sunblock (protects from both UVA and UVB rays). Is suitable for most sensitive skins. In small concentrations, can be used as a colorant19.24%
~ marks concentrations estimated from label position and typical use levels
Reef-safe
No oxybenzone or octinoxate — the two filters banned in Hawaii, Florida Keys and Aruba.
Anti-aging
3 ingredients credited for this claim
Strong support
What the product description says
“Vitamin A boosts the production of collagen to alleviate skin damage that aging has caused, while vitamin C enhances your natural beauty by brightening dark spots to even your skin tone.”
Source: Dermstore

This product can help prevent early signs of skin aging because it offers a good level of broad spectrum sun protection. Sun damage is the main cause of premature skin aging, and protecting your skin from the sun is the best anti-aging strategy.

Ascorbic acidUnder-dosedEffect: HighThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging~0.25–0.45%
GluconolactoneUnder-dosedEffect: HighA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals~0.45–0.65%
Retinyl palmitateUnder-dosedEffect: MediumThree steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect~0.25–0.4%
Evens skin tone
Not advertised by the brand · 3 ingredients credited for this claim
Strong support

This product offers broad spectrum sun protection. It means that it can prevent hyperpigmentation and help keep the skin tone even (sun damage is the main factor causing age spots, darkening of post-acne marks and other discolorations).

Ascorbic acidUnder-dosedEffect: HighThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging~0.25–0.45%
GluconolactoneUnder-dosedEffect: HighA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals~0.45–0.65%
Retinyl palmitateUnder-dosedEffect: MediumThree steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect~0.25–0.4%
Moisturizing
Not advertised by the brand · 12 ingredients credited for this claim
Good support

This product can help soften the skin and reduce its moisture loss with emollients and occlusives: squalane, carthamus tinctorius seed oil.

Keep in mind that this product does not contain effective ingredients to attract water to the upper layer of the skin. This is why an additional product with humectants like glycerin or hyaluronic acid can be helpful (apply it before this product for the best results).

Carthamus tinctorius seed oilKey active· EmollientEffect: HighAn emollient that helps soften the skin and might help calm down inflammation~4.6–5.7%
Ethylhexyl olivateKey activeEffect: HighHelps soften the upper layer of the skin~1.3–1.6%
PolymethylsilsesquioxaneKey activeEffect: HighA silicone that improves product texture and helps dissolve other ingredients. Can form a non-greasy film on the skin to prevent moisture loss~0.6–0.9%
SqualaneKey active· Emollient, OcclusiveEffect: HighAn oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.~0.55–0.85%
Coco-caprylate/caprateKey active· EmollientEffect: MediumHelps to soften the upper layer of the skin without creating a greasy texture~2.2–2.7%
Cetyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together~2.7–3.3%
Isodecyl neopentanoate· Emollient, OcclusiveEffect: LowAn emollient that helps soften the skin. It also forms a protective on its surface to reduce water loss.~3.3–4.1%
Octyldodecanol· EmollientEffect: LowAn emollient that helps to soften the skin and create a pleasant product texture and stabilize the formulation~0.3–0.5%
Dicaprylyl carbonate· EmollientEffect: LowHelps products spread more easily and works as an emollient to soften skin~3.7–4.5%
Glyceryl stearate· EmollientEffect: LowAn emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together~1.2–1.4%
Peg-8 dimethiconeEffect: LowA type of silicone that can help create nice product texture and soften the upper layer of the skin~0.65–0.95%
GluconolactoneUnder-dosedEffect: HighA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals~0.45–0.65%

Can it cause trouble?

Irritancy
1 strong irritant: Retinyl palmitate
Medium risk
We flagged 10 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Ascorbic acidThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of agingHigh~0.25–0.45%est.
Retinyl palmitateThree steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effectHigh~0.25–0.4%est.
Butyloctyl salicylateA synthetic ester of salicylic acid that is used to help disperse pigments and boost effectiveness of sunscreen ingredients. It is able to absorb UV light (working as an organic, or chemical filter), but is not approved as a sunscreen ingredient on its ownMedium~8.7–10.6%est.
Oleth-3 phosphateHelps water and oil mix togetherMedium~0.75–1.1%est.
Polyhydroxystearic acidUsed to create a thicker product consistency and stabilize the formulationMedium~0.6–0.9%est.
Disodium edtaStabilizes the product formulationMedium~0.45–0.7%est.
GluconolactoneA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicalsMedium~0.45–0.65%est.
Isopropyl titanium triisostearateHelps water and oil mix togetherMedium~0.55–0.8%est.
Potassium sorbateA preservativeMedium~0.3–0.6%est.
Tocopheryl acetateA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.Medium~0.15–0.3%est.
Comedogenic
1 ingredient rated 2 or more on the 0–5 pore-clogging scale
1 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Oleth-3 phosphateHelps water and oil mix together3/5~0.75–1.1%est.
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Ingredients

Filter by role to see what each ingredient is doing.

Titanium dioxide1.93%
UV filterKey active
Irritation risk
Low
Works for
Sun protection

Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin

More about Titanium dioxide
Zinc oxide19.24%
UV filterKey active
Irritation risk
Low
Works for
Sun protection

A broad spectrum sunblock (protects from both UVA and UVB rays). Is suitable for most sensitive skins. In small concentrations, can be used as a colorant

More about Zinc oxide
Water~45–55%
Formula
Irritation risk
Low

Plain old water

More about Water
Butyloctyl salicylate~8.7–10.6%
UV filterKey activeIrritant · medium
Irritation risk
Medium
Works for
Sun protection

A synthetic ester of salicylic acid that is used to help disperse pigments and boost effectiveness of sunscreen ingredients. It is able to absorb UV light (working as an organic, or chemical filter), but is not approved as a sunscreen ingredient on its own

More about Butyloctyl salicylate
C9-12 alkane~6.5–8%
Formula
Irritation risk
Low

Helps dissolve other ingredients in a formulation

More about C9-12 alkane
Carthamus tinctorius seed oil~4.6–5.7%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-oxidation

An emollient that helps soften the skin and might help calm down inflammation

More about Carthamus tinctorius seed oil
Dicaprylyl carbonate~3.7–4.5%
Formula
Irritation risk
Low
Works for
Moisturizing

Helps products spread more easily and works as an emollient to soften skin

More about Dicaprylyl carbonate
Isodecyl neopentanoate~3.3–4.1%
Formula
Irritation risk
Low
Works for
Moisturizing

An emollient that helps soften the skin. It also forms a protective on its surface to reduce water loss.

More about Isodecyl neopentanoate
Cetyl alcohol~2.7–3.3%
Key active
Irritation risk
Low
Works for
CleansingMoisturizing

A non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together

More about Cetyl alcohol
Coco-caprylate/caprate~2.2–2.7%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps to soften the upper layer of the skin without creating a greasy texture

More about Coco-caprylate/caprate
Propanediol~1.7–2%
Formula
Irritation risk
Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol
Ethylhexyl olivate~1.3–1.6%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Ethylhexyl olivate
Glyceryl stearate~1.2–1.4%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

An emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together

More about Glyceryl stearate
Peg-100 stearate~1.1–1.3%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix togehter and creates a nice product texture

More about Peg-100 stearate
Cetearyl olivate~0.95–1.2%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Cetearyl olivate
Cetearyl phosphate~0.8–1.2%
Formula
Triethoxycaprylylsilane~0.9–1.1%
Formula
Irritation risk
Low

A type of silicone that helps oil and water mix well together. Helps to disperse other ingredients, e.g. pigments, evenly in a formulation

More about Triethoxycaprylylsilane
Phenoxyethanol~0.5–1%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Sorbitan olivate~0.75–1.15%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Sorbitan olivate
Oleth-3 phosphate~0.75–1.1%
Comedogenic 3/5Irritant · medium
Irritation risk
Medium
Comedogenicity
3/5
Works for
Cleansing

Helps water and oil mix together

More about Oleth-3 phosphate
Hdi/trimethylol hexyllactone crosspolymer~0.65–1%
Formula
Irritation risk
Low

Used to create a silky product texture and add volume to products

More about Hdi/trimethylol hexyllactone crosspolymer
Peg-8 dimethicone~0.65–0.95%
Formula
Irritation risk
Low
Works for
Moisturizing

A type of silicone that can help create nice product texture and soften the upper layer of the skin

More about Peg-8 dimethicone
Alumina~0.7–1.05%
Formula
Irritation risk
Low

The same compound that is used safely in dental implants and bone cements. In cosmetics, it is used to improve the consistency of products

More about Alumina
Xanthan gum~0.65–0.95%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Polymethylsilsesquioxane~0.6–0.9%
Key active
Irritation risk
Low
Works for
Moisturizing

A silicone that improves product texture and helps dissolve other ingredients. Can form a non-greasy film on the skin to prevent moisture loss

More about Polymethylsilsesquioxane
Polyhydroxystearic acid~0.6–0.9%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Used to create a thicker product consistency and stabilize the formulation

More about Polyhydroxystearic acid
Disodium edta~0.45–0.7%
Irritant · medium
Irritation risk
Medium

Stabilizes the product formulation

More about Disodium edta
Squalane~0.55–0.85%
Key active
Irritation risk
Low
Works for
Moisturizing

An oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.

More about Squalane
Gluconolactone~0.45–0.65%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
MoisturizingExfoliationEvens skin toneAnti-agingAnti-oxidationAnti-blemish

A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals

More about Gluconolactone
Isopropyl titanium triisostearate~0.55–0.8%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps water and oil mix together

More about Isopropyl titanium triisostearate
Sodium benzoate~0.25–0.5%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Hydrogen dimethicone~0.45–0.65%
Formula
Irritation risk
Low

Helps the function of sunscreen and pigment ingredients in the formulation

More about Hydrogen dimethicone
Potassium sorbate~0.3–0.6%
Irritant · medium
Irritation risk
Medium

A preservative

More about Potassium sorbate
Silica~0.5–0.8%
Formula
Irritation risk
Low

Used to absorb oil and can temporarily mattify skin

More about Silica
Mica~0.35–0.65%
Formula
Irritation risk
Low

Creates an illusion of smoother and more radiant skin tone. Adds shimmer to the skin by reflecting light

More about Mica
Ascorbic acid~0.25–0.45%
Under-dosedIrritant · high
Irritation risk
High
Works for
Anti-agingEvens skin toneAnti-oxidation

The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging

More about Ascorbic acid
Octyldodecanol~0.3–0.5%
Formula
Irritation risk
Low
Works for
Moisturizing

An emollient that helps to soften the skin and create a pleasant product texture and stabilize the formulation

More about Octyldodecanol
Retinyl palmitate~0.25–0.4%
Under-dosedIrritant · high
Irritation risk
High
Works for
Anti-agingEvens skin toneAnti-blemishExfoliation

Three steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect

More about Retinyl palmitate
Sodium propoxyhydroxypropyl thiosulfate silica~0.2–0.4%
Formula
Tocopheryl acetate~0.15–0.3%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.

More about Tocopheryl acetate
Diamond powder~0.2–0.35%
Formula
Irritation risk
Low

Does not have known skin benefits. Might help create an optical illusion of smoother skin

More about Diamond powder
Iron oxides~0.1–0.2%
Formula
Irritation risk
Low
Works for
Sun protection

An umbrella term for the following three colorants: CI 77491, CI 77492, CI 77499. They might be able to offer some protection against visible light, but the degree of the protection is not clear

More about Iron oxides
Ingredient list view

Titanium dioxide, Zinc oxide, Water, Butyloctyl salicylate, C9-12 alkane, Carthamus tinctorius seed oil, Dicaprylyl carbonate, Isodecyl neopentanoate, Cetyl alcohol, Coco-caprylate/caprate, Propanediol, Ethylhexyl olivate, Glyceryl stearate, Peg-100 stearate, Cetearyl olivate, Cetearyl phosphate, Triethoxycaprylylsilane, Phenoxyethanol, Sorbitan olivate, Oleth-3 phosphate, Hdi/trimethylol hexyllactone crosspolymer, Peg-8 dimethicone, Alumina, Xanthan gum, Polymethylsilsesquioxane, Polyhydroxystearic acid, Disodium edta, Squalane, Gluconolactone, Isopropyl titanium triisostearate, Sodium benzoate, Hydrogen dimethicone, Potassium sorbate, Silica, Mica, Ascorbic acid, Octyldodecanol, Retinyl palmitate, Sodium propoxyhydroxypropyl thiosulfate silica, Tocopheryl acetate, Diamond powder, Iron oxides

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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
Peter Thomas RothMax Mineral Naked Broad Spectrum SPF 45YOUR PRODUCTNEOSTRATASheer Physical Protection SPF 50DecreeDay Shield SPF 30ExuvianceSheer Daily Protector SPF 50 1.7 Ounce
Match—60%55%55%
Price$38.00$35.75−$2.25$93.00+$55.00$33.73−$4.27
Shared key ingredients—4 of 95 of 94 of 9
Key difference—Lactobionic AcidPalmitoyl Tripeptide-1Lactobionic Acid
Irritancy Medium Low Medium Low
SPFSPF 45SPF 50SPF 30SPF 50
Drying alcohol————
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Product summary

The ingredient list suggests that "Peter Thomas Roth - Max Mineral Naked Broad Spectrum SPF 45" can provide reliable sun protection. We love that it can protect from both UVA and UVB rays (not all sunscreens with SPF ratings give UVA protection. UVA rays do not cause sunburn, but still damage our skin and lead to early aging).

This product should also be hydrating enough to use without an additional moisturizer during the day. Like all broad-spectrum sunscreens, this product has an anti-aging benefit.

Sunscreen filters

This is a "mixed" sunscreen in the sense that it uses both mineral and organic (so-called "chemical") sun filters. The organic filters in the product are: butyloctyl salicylate. As for the mineral filters, this sunscreen uses both titanium dioxide and zinc oxide.

Irritation risk

This product contains actives that can be irritating. We assess the overall irritancy of it to be medium. For a detailed overview of all potential irritants: click here

You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.

Price

The product retails for 27.84£ in the United Kingdom and for 38.00$ in the United States.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 21 studies and safety reviews.

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Peter Thomas Roth Max Mineral Naked Broad Spectrum SPF 45
Peter Thomas RothMax Mineral Naked Broad Spectrum SPF 45

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As an Amazon Associate, WIMJ earns from qualifying purchases.