Under Your Skin Heat Protection Spray

Under Your Skin Heat Protection Spray

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Overview

What it is

Heat protectant with 23 ingredients

Cool Features

It is vegan, cruelty-free, and reef safe

Suited For

It has ingredients that are good for dry skin, brightening skin, sensitive skin and scar healing

Free From

It doesn't contain any oils, parabens, silicones or sulfates

Fun facts

Under Your Skin is from Sweden.

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

Benefits

Concerns

Ingredients Explained

Skin Conditioning, Solvent

Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.

So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.

You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!

Learn more about Water
Skin Conditioning

Aloe Barbadensis Leaf Juice comes from leaves of the aloe plant. Aloe Barbadensis Leaf Juice is best known for helping to soothe sunburns. It is also anti-inflammatory, moisturizing, antiseptic, and can help heal wounds.

Aloe is packed with good stuff including Vitamins A, C, and E. These vitamins are antioxidants, which help fight free-radicals and the damage they may cause. Free-radicals are molecules that may damage your skin cells, such as pollution.

Aloe Barbadensis Leaf Juice also contains sugars. These sugars come in the form of monosaccharides and polysaccharides, folic acid, and choline. These sugars are able to help bind moisture to skin.

It also contains minerals such as calcium, 12 anthraquinones, fatty acids, amino acids, and Vitamin B12.

Learn more about Aloe Barbadensis Leaf Juice
Cleansing, Foaming

Caprylyl/Capryl Glucoside is an alkyl glucoside. This just means it is creating by reacting alcohol and sugar. It is a cleansing and foaming ingredient.

Caprylyl/Capryl Glucoside helps remove the dirt, oil, and other pollutants from your skin.

Saccharomyces Cerevisiae Extract comes from a yeast used in fermentation. It has skin conditioning properties due to its naturally occurring peptides, polysaccharides (including beta-glucans), amino acids, minerals, and vitamins.

Clinical research shows formulas that contain this ingredient can improve moisture levels and refine skin texture over time. This is associate with its ability to reduce free-radical activity and protect the skin against environmental damage.

Lab studies demonstrate that some peptide fractions in this ingredient possess antioxidant and anti-collegenase effects, helping to protect the structural proteins in skin and soothing inflammation.

Additionally, this ingredient has been shown to have antimicrobial effects against bacteria associated with acne.

Learn more about Saccharomyces Cerevisiae Extract
Humectant, Skin Conditioning, Skin Protecting

Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.

A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.

As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.

Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.

Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.

In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.

This ingredient is organic, colorless, odorless, and non-toxic.

Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.

Learn more about Glycerin
Humectant, Skin Conditioning

Xylitylglucoside is created from xylitol and glucose, two humectants.

Not surprisingly, this ingredient is also a humectant. It attracts and holds water in your skin, helping to maintain hydration.

This ingredient is most commonly found in a popular trio called Aquaxyl. Aquaxyl is made up of anhydroxylitol(24 - 34%), xylitylglucoside (35 - 50%), and xylitol (5 - 15%).

According to a manufacturer, Aquaxyl is known for a 3-D hydration concept and an anti-dehydration shield to reinforce the outer layer of skin.

Learn more about Xylitylglucoside
Humectant, Skin Conditioning

This ingredient is created from dehydrating xylitol in acidic conditions. Xylitol is a famous sugar and humectant.

Much like its predecessor, anhydroxylitol is a humectant. Humectants attract and hold water to moisturize the skin.

This ingredient is most commonly found in a popular trio called Aquaxyl. Aquaxyl is made up of anhydroxylitol (24 - 34%), xylitylglucoside (35 - 50%), and xylitol (5 - 15%).

According to a manufacturer, Aquaxyl is known for a 3-D hydration concept and an anti-dehydration shield to reinforce the outer layer of skin.

This ingredient is often derived from plants such as wood and sugarcane.

Learn more about Anhydroxylitol
Skin Conditioning

Hydrolyzed Rice Protein is protein extracted from rice. This ingredient is rich in antioxidants and peptides.

Studies show this ingredient may help with blocking the melanin creation process when skin is exposed to UV.

Skin Conditioning

We don't have a description for Hydrolyzed Quinoa yet.

Humectant, Skin Conditioning

Xylitol is a humectant and prebiotic. It can help with dry skin.

In studies, xylitol has been shown to improve dry skin. It decreased transepidermal water loss, or when water passes through the skin and evaporates. Xylitol also showed to help improve the biomechanical properties of the skin barrier.

The prebiotic property of xylitol may also help reinforce our skin's natural microbiome. Having a healthy microbiome prevents infection by bad bacteria and helps with hydration.

As a humectant, Xylitol helps draw moisture from both the air and from deeper skin layers. This helps keep skin hydrated.

Xylitol is a sugar alcohol and commonly used as a sugar substitute. It is naturally occurring in plants such as strawberries and pumpkin.

Learn more about Xylitol

Polycitronellol is derived from citronellol. it has film-forming and fragrance fixative properties.

This means polycitronellol helps make products have a nice texture and keep your skin soft. It also helps fragrance last longer in perfumes or fragranced products.

Unlike citronellol, this ingredient has been shown to be non-sensitizing to skin in manufacturer studies.

Fun fact: This ingredient is biodegradable and sustainably derived.

Learn more about Polycitronellol

We don't have a description for Polycitronellol Acetate yet.

Emollient, Skin Conditioning

Undecane is an emollient and helps create a lightweight base for products.

Is is not soluble in water and naturally occurring in some species.

Perfuming

Tridecane is a lightweight emollient and fragrancing ingredient. It is a paraffin and often called a silicone alternative.

According to official INCI guidelines, this ingredient is used to give a light odor to raw materials. It is often used as a starter ingredient to create parfum.

This ingredient can be derived from palm oil, or coconut oil. It is also naturally found in certain species of organisms.

According to the NOAA, this ingredient can cause skin sensitivity with prolonged use. However, this warning is taken from the Coast Guard and no studies have been done on this in relation to cosmetics.

Tridecane is not water soluble.

Learn more about Tridecane
Masking, Perfuming

Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.

Also called "fragrance", this ingredient can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "parfum" in the ingredients list is a different mixture.

For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations.

The term 'parfum' or 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.

For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance by INCI standards.

One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.

Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.

Parfum can also be used to mask or cover an unpleasant scent.

The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.

Learn more about Parfum
Skin Conditioning

Sodium levulinate is the a sodium salt of Levulinic Acid. If dissolved in an aqueous solution, the two ingredients become identical.

It is a skin conditioning agent, meaning it helps soften and hydrate your skin.

According to Cosmetic Ingredient Review, the highest amounts of sodium levulinate are found in mouthwashes at 0.62%.

Learn more about Sodium Levulinate
Antimicrobial

Sodium Anisate comes from fennel. It is used as a preservative and to add flavoring.

Sodium Anisate has antimicrobial properties.

Preservative

Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.

This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.

Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.

You'll often find this ingredient used with other preservatives.

Learn more about Potassium Sorbate

Leuconostoc/Radish Root Ferment Filtrate is a natural preservative. It comes from fermenting radish roots with a bacteria called leuconostoc.

Leuconostoc comes from lactic acid.

This ingredient has antimicrobial properties and helps prevent the growth of bacteria in a product.

Leuconostoc is used to make the traditional Korean side-dish, kimchi. It is also used to make sourdough bread (both incredibly yummy foods).

Learn more about Leuconostoc/Radish Root Ferment Filtrate

Sodium Phytate is the synthetic salt form of phytic acid. Phytic acid is an antioxidant and can be found in plant seeds.

Sodium Phytate is a chelating agent. Chelating agents help prevent metals from binding to water. This helps stabilize the ingredients and the product.

Perfuming, Preservative, Solvent

Benzyl Alcohol is most commonly used as a preservative. It also has a subtle, sweet smell. Small amounts of Benzyl Alcohol is not irritating and safe to use in skincare products. Most Benzyl Alcohol is derived from fruits such as apricots.

Benzyl Alcohol has both antibacterial and antioxidant properties. These properties help lengthen the shelf life of products. Benzyl Alcohol is a solvent and helps dissolve other ingredients. It can also improve the texture and spreadability.

Alcohol comes in many different forms. Different types of alcohol will have different effects on skin. This ingredient is an astringent alcohol.

Using high concentrations of these alcohols are drying on the skin. They may strip away your skin's natural oils and even damage your skin barrier. Astringent alcohols may also irritate skin.

Other types of astringent alcohols include:

According to the National Rosacea Society based in the US, you should be mindful of products with these alcohols in the top half of ingredients.

Any type of sanitizing product will have high amounts of alcohol to help kill bacteria and viruses.

Learn more about Benzyl Alcohol
Masking, Preservative

Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.

Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.

Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.

It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.

Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.

We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.

Learn more about Sodium Benzoate
Antimicrobial, Astringent, Masking

Alcohol comes in many different forms. Different types of alcohol will have different effects on skin. This ingredient is usually an astringent alcohol.

These alcohols are drying on the skin. They may strip away your skin's natural oils and even damage your skin barrier. Astringent alcohols may also irritate skin.

Other types of astringent alcohols include:

According to the National Rosacea Society based in the US, you should be mindful of products with these alcohols in the top half of ingredients.

Any type of sanitizing product will have high amounts of alcohol to help kill bacteria and viruses.

Fatty alcohols come from plant oils such as coconut oil. These can help hydrate the skin and are non-irritating. Some fatty alcohols include cetyl and stearyl alcohol.

Learn more about Alcohol

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Where it's from

Under Your Skin is a Swedish brand

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Verified by SkinSort

We're dedicated to providing you with the most up-to-date and science-backed ingredient info out there.

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

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· Updated November 30, 2025 Added by veronicall