Mara Beauty Algae and Zinc Sea Kale Suncreen Sérum

Mara Beauty Algae and Zinc Sea Kale Suncreen Sérum

SPF 30Efficacy60/100IrritancyHigh·1 UV filter
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Works for

0 of 1 advertised claim delivered

Sun protection
SPF 30 · 1 UV filter · Broad spectrum
Weak protectionLow filter dose
SPF 30Broad spectrumMineral filtersNo white cast

This product uses a single UV filter (zinc oxide) in a relatively low concentration and might not be able to provide a reliable sun protection.

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
Zinc Oxide
FilterCoverageWhat it doesEst. amount
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 colorant~4.1–6.2%
~ 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-oxidation
Not advertised by the brand · Rubus idaeus seed oil, Vitis vinifera seed oil + 1 more
Moderate evidence

This product contains antioxidants (rubus idaeus seed oil) that might be able to help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is not enough evidence to confirm their effectiveness in skin though.

Rubus idaeus seed oilKey activeEffect: MediumA plant oil that might be able to help neutralize free radicals in skin~2.1–3.2%
Vitis vinifera seed oilEffect: LowA great emollient that can also have anti-oxidant properties~8.7–13.1%
Alaria esculenta extractEffect: Low, below effective doseWorks as a humectant helping to attract water to the upper layer of the skin and might be effective as an anti-oxidant.~0.3–0.75%
Moisturizing
Not advertised by the brand · Cannabis sativa seed oil, Helianthus annuus seed oil + 6 more
Good evidence

This product can help soften the skin and reduce its moisture loss with emollients and occlusives: caprylic/capric triglyceride, helianthus annuus 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).

Cannabis sativa seed oilKey active· EmollientEffect: HighA plant oil that due to its high linoleic acid content can help strengthen skin's barrier function and soften its upper layer~1.6–2.3%
Helianthus annuus seed oilKey active· Emollient, OcclusiveEffect: HighA great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function~4.5–6.7%
Persea gratissima oilKey active· EmollientEffect: HighAn emollient that helps soften the skin and could be helpful in repairing its barrier function~1.3–1.9%
Vitis vinifera seed oilKey active· EmollientEffect: HighA great emollient that can also have anti-oxidant properties~8.7–13.1%
Caprylic/capric triglycerideKey active· Emollient, OcclusiveEffect: HighA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~1.9–2.9%
Linum usitatissimum seed oilEffect: Low~2.5–3.8%
Moringa oleifera seed oil· EmollientEffect: LowA plant oil that helps soften the upper layer of the skin. Is unlikely to be helpful in restoring skin barrier function due to the low content of linoleic acid~22–33%
Alaria esculenta extractUnder-dosedEffect: MediumWorks as a humectant helping to attract water to the upper layer of the skin and might be effective as an anti-oxidant.~0.3–0.75%

Can it cause trouble?

Irritancy
4 strong irritants: Citrus aurantium amara flower oil, Linalool + 2 more — patch-test recommended
High risk
We flagged 11 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Citrus aurantium amara flower oilUsed as a fragrance. Can be irritatingHigh~0.5–1.1%est.
LinaloolA fragrance. Can be irritatingHigh~0.05–0.2%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.05–0.15%est.
GeraniolA fragrance. Can be irritatingHigh~0.01–0.1%est.
Moringa oleifera seed oilA plant oil that helps soften the upper layer of the skin. Is unlikely to be helpful in restoring skin barrier function due to the low content of linoleic acidMedium~22–33%est.
Vitis vinifera seed oilA great emollient that can also have anti-oxidant propertiesMedium~8.7–13.1%est.
Rubus idaeus seed oilA plant oil that might be able to help neutralize free radicals in skinMedium~2.1–3.2%est.
Caprylic/capric triglycerideA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerinMedium~1.9–2.9%est.
Cannabis sativa seed oilA plant oil that due to its high linoleic acid content can help strengthen skin's barrier function and soften its upper layerMedium~1.6–2.3%est.
Persea gratissima oilAn emollient that helps soften the skin and could be helpful in repairing its barrier functionMedium~1.3–1.9%est.
Polyhydroxystearic acidUsed to create a thicker product consistency and stabilize the formulationMedium~0.6–1.4%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged
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Ingredients

Filter by role to see what each ingredient is doing.

Moringa oleifera seed oil~22–33%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

A plant oil that helps soften the upper layer of the skin. Is unlikely to be helpful in restoring skin barrier function due to the low content of linoleic acid

More about Moringa oleifera seed oil
Vitis vinifera seed oil~8.7–13.1%
Key activeIrritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-oxidation

A great emollient that can also have anti-oxidant properties

More about Vitis vinifera seed oil
Helianthus annuus seed oil~4.5–6.7%
Key active
Irritation risk
Low
Works for
Moisturizing

A great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function

More about Helianthus annuus seed oil
Zinc oxide~4.1–6.2%
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
Linum usitatissimum seed oil~2.5–3.8%
Formula
Irritation risk
Low
Works for
Moisturizing
More about Linum usitatissimum seed oil
Rubus idaeus seed oil~2.1–3.2%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A plant oil that might be able to help neutralize free radicals in skin

More about Rubus idaeus seed oil
Caprylic/capric triglyceride~1.9–2.9%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin

More about Caprylic/capric triglyceride
Cannabis sativa seed oil~1.6–2.3%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

A plant oil that due to its high linoleic acid content can help strengthen skin's barrier function and soften its upper layer

More about Cannabis sativa seed oil
Persea gratissima oil~1.3–1.9%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

An emollient that helps soften the skin and could be helpful in repairing its barrier function

More about Persea gratissima oil
Polyhydroxystearic acid~0.6–1.4%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Used to create a thicker product consistency and stabilize the formulation

More about Polyhydroxystearic acid
Citrus aurantium amara flower oil~0.5–1.1%
Irritant · high
Irritation risk
High

Used as a fragrance. Can be irritating

More about Citrus aurantium amara flower oil
Alaria esculenta extract~0.3–0.75%
Under-dosed
Irritation risk
Low
Works for
MoisturizingAnti-oxidationAnti-aging

Works as a humectant helping to attract water to the upper layer of the skin and might be effective as an anti-oxidant.

More about Alaria esculenta extract
Aster tripolium extract~0.15–0.6%
Formula
Crambe maritima leaf extract~0.1–0.45%
Formula
Linalool~0.05–0.2%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Linalool
Limonene~0.05–0.15%
Irritant · high
Irritation risk
High

A common frangrance that can easily irritate skin, especially if exposed to air, light or heat

More about Limonene
Geraniol~0.01–0.1%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Geraniol
Ingredient list view

Moringa oleifera seed oil, Vitis vinifera seed oil, Helianthus annuus seed oil, Zinc oxide, Linum usitatissimum seed oil, Rubus idaeus seed oil, Caprylic/capric triglyceride, Cannabis sativa seed oil, Persea gratissima oil, Polyhydroxystearic acid, Citrus aurantium amara flower oil, Alaria esculenta extract, Aster tripolium extract, Crambe maritima leaf extract, Linalool, Limonene, Geraniol

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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
Mara BeautyAlgae and Zinc Sea Kale Suncreen SérumYOUR PRODUCTMara BeautyMara Algae + Zinc Sea Kale Sunscreen Serum SPF30
Match—51%
Price$60.16$61.49+$1.33
Shared key ingredients—7 of 7
Key difference——
Irritancy High Medium
SPFSPF 30SPF 30
Drying alcohol——
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Product summary

"MARA - Algae and Zinc Sea Kale Suncreen Sérum" uses a single UV filter (zinc oxide) in a relatively low concentration and might not be able to provide reliable sun protection.

It should also be hydrating enough to use without an additional moisturizer during the day.

Sunscreen filters

This sunscreen is a mineral sunscreen. It uses zinc oxide for sun protection. Zinc oxide almost never irritates the skin or stings eyes, but it can leave a white cast.

Irritation risk

We assess the overall irritancy of it to be high. 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 45.00£ in the United Kingdom.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 15 studies and safety reviews.

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Mara Beauty Algae and Zinc Sea Kale Suncreen Sérum
Mara BeautyAlgae and Zinc Sea Kale Suncreen Sérum

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