MARA Beauty Algae + Zinc® Sea Kale Sunscreen Sérum SPF 30 PA+++

MARA Beauty Algae + Zinc® Sea Kale Sunscreen Sérum SPF 30 PA+++

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Overview

What it is

Sunscreen with 14 ingredients that contains SPF

Cool Features

It is vegan and cruelty-free

Suited For

It has ingredients that are good for dry skin, sensitive skin and oily skin

Free From

It doesn't contain any harsh alcohols, common allergens, parabens, silicones or sulfates

Fun facts

MARA Beauty is from United States.

We independently verify ingredients and our claims are backed by peer-reviewed research. Does this product need an update? Let us know.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Explained

Cosmetic Colorant, Skin Protecting, UV Absorber

Zinc Oxide is a mineral broad-spectrum UV filter; it is the broadest UVA and UVB reflector approved by the FDA. It also has skin protectant and skin soothing properties.

Zinc oxide is one of the most effective broad-spectrum UV filters. It protects against UVB, UVAII, and UVAI. In comparison to its counterpart titanium dioxide, zinc oxide provides uniform and extended UVA protection.

Another great benefit? This ingredient is highly photostable so it won't degrade easily under sunlight.

A common myth is that mineral UV filters are widely believed to primarily reflect UV light.

However, modern research shows titanium dioxide absorbs UV radiation like chemical filters (~95% absorption & 5% reflection).

Zinc oxide has great skin soothing properties so you'll likely find this in sunscreens formulated for sensitive skin or babies/children. It is unlikely to cause "eye sting" like other sunscreen ingredients.
Regulatory agencies consider zinc oxide to be non-toxic and safe. It has also been shown to not penetrate the skin.

Unfortunately, this ingredient does leave a visible white cast. This is why mineral sunscreens are often less cosmetically elegant than chemical or hybrid ones.

In cosmetics, zinc oxide can be found in both non-nano and nano-sized forms. The nano version is used to reduce white cast and improve the texture of sunscreen formulas.

There are ongoing concerns surrounding nano-zinc oxide's impact on marine ecosystems and whether it can be absorbed into skin.

Regarding marine ecosystems and coral reefs, there is no conclusive evidence that any form of zinc oxide (or any other sunscreen ingredients) will cause harm. The science is still developing but many consumers are keeping a close eye on this issue.

Please note, many destinations have reef-safety sunscreen rules. For instance, the U.S. Virgin Islands advises all visitors to use non-nano mineral sunscreens.

There has also been some stir about whether micronized or nano zinc oxide has potential photoxicity and absorption through the skin/lungs.

An in-vitro (done in a test tube or petri dish) study demonstrated micronized zinc oxide to have potential phototoxicity. There's no need to fret; the EU Commission's Scientific Committee on Consumer Safety has stated, "The relevance of these findings needs to be clarified by appropriate investigations in vivo." Or in other words, further studies done on living organisms are needed to prove this.

Current research shows zinc oxide nanoparticles do not penetrate intact or sunburned skin. They either remain on the surface or in the outermost layer of dead skin (stratum corneum).

Zinc oxide is one of only two classified mineral UV filters with titanium dioxide being the other one.

Fun fact: Zinc has been used throughout history as an ingredient in paint and medicine. An Indian text from 500BC is believed to list zinc oxide as a salve for open wound. The Ancient Greek physician Dioscorides has also mentioned the use of zinc as an ointment in 1AD.

Learn more about Zinc Oxide
Emollient, Skin Conditioning

Moringa Oleifera Seed Oil is a lightweight oil from the seeds of the Moringa oleifera tree. In cosmetics, it's an emollient that forms a light film to slow water loss and soften skin.

Its fatty acid composition is dominated by oleic acid (70-78%), with smaller amounts of behenic, palmitic, and stearic acids (this profile is actually pretty similar to olive oil).

Notably, this ingredient is oxidatively stable for an oil and resists going rancid as fast as other oils.

A small, in vivo study on 32 participants found a cream with this ingredient increased skin hydration with no reported skin irritation. It also found the tocopherol content gave it some antioxidant activity as well.

One thing to flag for fungal acne:
Because this oil is so high in oleic acid, Malassezia can use it as a food source and this ingredient may not be fungal acne safe.

For everyone else, this ingredient is well-tolerated and nourishing with a good safety track record.

Learn more about Moringa Oleifera Seed Oil
Emollient, Skin Conditioning

Vitis Vinifera Seed Oil comes from the grape vine. Grape seeds are a byproduct of creating grape juice or wine.

The components of grape seeds have many skin benefits. Research has found it to be antimicrobial and anti-inflammatory. It also contains many potent antioxidants such as Vitamin E , Vitamin C, proanthocyanidins, polyphenols, flavonoids, and anthocyanins. Proanthocyanidin has been shown to help even out skin tone.

Antioxidants help fight free-radical molecules. Free-radical molecules are capable of damaging our cells and other genetic material. Antioxidants help stabilize free-radicals by donating extra electrons. Grape seed extract may help reduce the signs of aging.

The antimicrobial properties of grape seed may help treat acne. However, more research is needed to support this claim.

Grape seed has also been found to help absorb UV rays. Grape seed extract should not replace your sunscreen.

The fatty acids of grape seed oil give it emollient properties. Emollients help soothe and soften your skin by creating a film. This film traps moisture within, keeping your skin hydrated.

Learn more about Vitis Vinifera Seed Oil
Emollient, Masking, Skin Conditioning

Helianthus Annuus Seed Oil is a plant oil derived from the seeds of a sunflower.

It is rich in fatty acids, primarily linoleic acid and oleic acid. This gives it emollient and skin conditioning properties.

The reason this ingredient is so effective is because it forms a thin film on the skin that reduces transepidermal water loss (TEWL) while supplying linoleic acid to the stratum corneum to improve barrier strength.

The high linoleic acid content is particularly noteworthy for acne-prone skin.

Research suggests that acne-prone skin tends to be deficient in linoleic acid in sebum. Topical application may help replenish this to support a healthier follicular environment and less comedone-promoting sebum.

One randomized study found sunflower seed oil preserved skin barrier integrity in adult volunteers with and without atopic dermatitis (outperforming olive oil).

This ingredient is well-studied, gentle, and an effective emollient suitable for most skin types.

On fungal acne: This ingredient may not be Fungal acne (Malassezia folliculitis) safe. This is because it contains fatty acids with carbon chain lengths in the C11-C24 range.

Learn more about Helianthus Annuus Seed Oil
Perfuming, Skin Conditioning

This ingredient is also known as flaxseed oil or linseed oil. It is created by cold-pressing the seeds of the flax plant and is rich in fatty acids.

This oil is packed with omega-3 (ALA), omega-6, and omega-9 fatty acids that closely mimic the skin's own natural lipid barrier. The high omega-3 content gives it solid anti-inflammatory properties.

Clinical studies have found it can reduce water loss and improve smoothness/hydration, particularly in sensitive skin types. Studies also suggest it helps maintain the lipid layer that is compromised in atopic (eczema-prone) skin.

Wound healing studies showed that low-concentration linseed oil formulations (1-5%) produced significant barrier repair, but it should be noted that high concentrations showed diminishing returns.

Due to the rich fatty acid content, this ingredient may not be fungal acne safe.

Learn more about Linum Usitatissimum Seed Oil

Rubus Idaeus Seed Oil is created from the seeds of the raspberry fruit. Raspberries are native to northern Europe and Asia.

Raspberry seed oil is an emollient with antioxidant and anti-inflammatory properties. It is rich in fatty acids, tocopherols, flavonoids, Vitamin C, and Vitamin E.

As an emollient, raspberry seed oil helps hydrate your skin. Emollients prevent moisture from evaporating by creating a film on top.

Learn more about Rubus Idaeus Seed Oil
Masking, Skin Conditioning

Caprylic/Capric Triglyceride (aka MCT Oil) is a lightweight emollient, solvent, and texture enhancer. It is considered a skin-softener by helping to prevent moisture loss.

Though it behaves like an oil, it is not technically one due to its chemical composition. One perk of this ingredient is that it is very stable, resistant to oxidation, and unlikely to go rancid.

In practice, that translates to a long shelf life and a consistently elegant skin feel.

While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this. Just patch test if you have concerns.

Fractionated coconut oil and MCT Oil are both listed as Caprylic/Capric Triglyceride according to INCI. This is because INCI names are based on the ingredient’s final chemical composition and not its marketing name or source.

This ingredient is treated as the gold standard fungal acne safe oil. Even though it is coconut derived, the problematic lauric acid is stripped out.

This leaves just caprylic (C8) and capric (C10) acid. These chain lengths actually trend antifungal; a 2020 study found caprylic acid was enough to disrupt Malassezia furfur cell membrane, with a caprylic acid derivative damaging membrane structures at concentrations as low as 0.2%.

Learn more about Caprylic/Capric Triglyceride
Emollient, Skin Conditioning

Cannabis Sativa Seed Oil is the fixed oil expressed from the seeds of the Cannabis sativa plant. This is also known as hemp oil.

Hemp oil is an emollient and nourishes the skin. It contains many fatty acids such as linoleic acid, amino acids, phospholipids, and vitamin E.

The difference between hemp and cannabis is their psychoactive component. Hemp has low amounts of THC.

Learn more about Cannabis Sativa Seed Oil
Skin Conditioning

This ingredient is also known as Avocado oil. It's the cold-pressed oil from the flesh of the avocado fruit packed with fatty acids (mostly oleic acid).

The rich fatty acid profile allows it to function as a skin conditioning agent and emollient; it helps soften and smooth skin while reducing water loss.

Preclinical research has found that topical avocado oil increased collagen synthesis and reduced inflammation during wound healing, giving it some skin-repairing credibility.

The unsaponifiable fraction of the oil is also interesting: studies on avocado unsaponifiables showed that it helped skin produce more collagen and other structural compounds that support healing.

The CIR Expert Panel has found this ingredient to be non-irritating in formulations.

It's a great ingredient for dry or compromised skin. Just know it may not be fungal acne safe. This is because the oleic acid content falls within the range that Malassezia can use as a food source.

Learn more about Persea Gratissima Oil
Skin Protecting

Alaria Esculenta Extract is derived from a brown seaweed called badderlocks.

Alaria Esculenta Extract has antioxidant and hydrating properties.

Skin Protecting

We don't have a description for Aster Tripolium Extract yet.

Skin Conditioning

We don't have a description for Crambe Maritima Leaf Extract yet.

Masking, Skin Conditioning

This ingredient is also known as bitter orange flower oil, or neroli flower oil. It imparts a floral, sweet, and citrusy scent.

It is rich in linalool, linalyl acetate, limonene, and nerolidol.

Polyhydroxystearic Acid is a vegetable-derived soft wax made from castor oil. It's an emulsion stabilizer, thickener, and film former.

You'll likely see it in sunscreens because it helps disperse pigments and UV-reflecting minerals like titanium dioxide and zinc oxide evenly.

Depending on the concentration, it can drastically change the texture of a product from pasty solid (like lipstick) to sprayable liquid.

The CIR Expert Panel for Cosmetic Ingredient Safety has concluded this ingredient to be safe in cosmetics. The highest reported use concentration is 14.2% in lipsticks.

Learn more about Polyhydroxystearic Acid

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Oily 100%
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Where it's from

MARA Beauty is a American brand

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30 SPF Rating

With an SPF rating of 30, this product protects against 96.7% of UVB rays

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Verified by SkinSort

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The data we've presented on this page has been verified by a member of the SkinSort Team.

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· Published January 8, 2023 Added by Lapaki