Round Lab Birch Juice Moisturizing Sun Cream SPF50+ PA++++

Diethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB) is a chemical UVA absorber. It is formulated for high UVA protection (320-400 nm) and photostability.

DHHB has been approved by the EU, Japan, Taiwan, and South America for use up to 10%.

UV absorbers are an agent that absorbs UV rays. They protect your skin by using chemical reactions to convert UV rays into heat and energy.

UV rays are a form of electromagnetic radiation from the sun. Other sources include tanning beds and welding torches. Radiation is the emission of energy. UV Rays are divided into 3 groups. UVA (320-400 nm) contains the least amount of energy. They are linked to long term skin damage such as wrinkles and hyperpigmentation. UVB (290-320 nm) rays emit more energy than UVA rays. They are capable of damaging DNA in skin cells. UVB causes sunburns and are thought to be linked to skin cancer. UVC (200-280 nm) contains the highest amount of energy. Our ozone blocks UVC. UVC can also originate from welding torches, mercury lamps, and sanitizing bulbs.

Polymethylsilsesquioxane is a silicone used as a film forming agent.

When applied to the skin, this ingredient creates an invisible film on the surface. This film still allows oxygen to pass through, but prevents moisture from escaping. This can help condition and hydrate the skin. It also leaves a silky feel when applied.

Polymethylsilsesquioxane has not been shown to clog pores. It has been deemed safe to use up to 55%, but most cosmetics use much less.

If you have concerns about using this ingredient, we recommend speaking with a professional.

Ethylhexyl Triazone is a modern chemical sunscreen that protects from UV-B radiation.

It is the most effective of existing UV-B filters, as it provides the highest level of photo-stable absorption. It protects from the entire UV-B range (280 to 320nm), with it's highest level of protection at 314nm.

Ethylhexyl Triazone is oil soluble, oderless and colorless, which mean it is able to be incorporated into a variety of different formulations.

It is not currently available within the United States due to slow changing FDA regulations. Outside of the US, it is used in formulations at concentrations up to 5%.

Niacinamide has emerged as an all-star ingredient due to its many benefits.

It is known to treat acne by reducing inflammation. It also helps fade dark-spots and strengthen the skin by promoting the growth of the ceramide barrier.

Other benefits include smoothing wrinkles and minimizing redness.

Niacinamide can also help build keratin, a protein that keeps skin firm.

When incorporating Niacinamide into your routine, look out for concentration amounts. Typically, 5% Niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.

Niacinamide can be mixed with other ingredients to boost benefits. For instance, it has shown to be effective when used with copper, folic acid, and zinc to treat acne.

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (Tinosorb M) is a hybrid and broad-spectrum UV ingredient. It is both a UV absorber and filter.

UV absorbers are an agent that absorbs UV rays. They protect your skin by using chemical reactions to convert UV rays into heat and energy. UV filters physically reduce the amount of UV rays from reaching your skin.

Tinosorb M covers a range of 280-400 nm and is photostable. This ingredient is neither oil or water soluble.

Tinosorb M, similarly to Tinosorb S, is not available in the US. However, it is available in the EU and Asia.

Coco-Caprylate is created from fatty coconut alcohol and caprylic acid.

It is a lightweight emollient. Emollients create a thin barrier on the skin to trap moisture in. This helps keep your skin hydrated and soft.

Once applied, Coco-Caprylate is absorbed quickly and leaves a silky feel. It may help solubilize other ingredients, or help other ingredients be dispersed evenly.

Coco-Caprylate may not be fungal acne safe.

Caprylyl Methicone is a type of silicone.

It helps soften and soothe the skin by creating a thin film on top. This film helps trap moisture, keeping your skin hydrated.

Diethylhexyl Butamido Triazone is a photostable UV absorber. It protects in the UVB and UVA II range. UV absorbers are an agent that absorbs UV rays. They protect your skin by using chemical reactions to convert UV rays into heat and energy.

Diethylhexyl Butamido Triazone is oil soluble and highly photostable.

Glycerin is already naturally found in your skin and helps moisturize and protect your skin. A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.

Glycerin is a humectant, helping the skin stay hyrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.

Having moisturized skin helps improve the 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.

Glycerin is organic, colorless, odorless, and non-toxic.

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

1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.

In products that are water-based, this ingredient can help stabilize perfumes and fragrances. It can also help make the texture of products softer and more smooth.

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

• It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
• It is a humectant, which means that it helps attract moisture into the skin.
• It helps improve product application.

Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.

Sodium Hyaluronate is hyaluronic acid's salt form.

Sodium Hyaluronate is great at holding water and acts as a humectant. It plays a role in hydrating and soothing skin.

It is naturally occurring in our bodies and is mostly found in eye fluid and joints; it is commonly derived from sodium salt of hyaluronic acid.

These are some other common types of Hyaluronic Acid:

• Hyaluronic Acid
• Hydrolyzed Hyaluronic Acid
• Sodium Hyaluronate Crosspolymer

Hyaluronic acid is naturally found in healthy skin. It is a humectant, meaning it draws moisture to your skin. Hyaluronic Acid has the capacity to bind to large amounts of water.

Hyaluronic acid helps hydrate, soothe, and protect the skin. It is already naturally found in our bodies, such as the fluids of our eyes and our joints.

Other characteristics of hyaluronic acid include anti-inflammatory and anti-microbial. Studies show hyaluronic acid helps speed up wound-healing due to these traits.

These are some other common types of Hyaluronic Acid:

• Sodium Hyaluronate
• Hydrolyzed Hyaluronic Acid
• Sodium Hyaluronate Crosspolymer

Glyceryl Glucoside is made from glycerol and glucose.

It is a humectant. Humectants help hydrate your skin by drawing moisture to it from the air.

Some foods that contain glyceryl glucoside include sake, miso, and wines.

Dipotassium Glycyrrhizate comes from licorice root.

Extracts of licorice have demonstrated to have antibacterial, anti‐inflammatory, antiviral, antioxidant properties.

One component, glabridin, has extra potent antioxidant and soothing properties. It has also been found to block pigmentation from UVB rays in guinea pigs.

Licorice Root also contains a flavonoid. Flavonoids are a natural substance from in plants. Flavonoids also have antioxidant properties.

Another component, glycyrrhizin, has been found to have anti-inflammatory and antimicrobial benefits. This may make licorice root extract effective at treating acne. However, more research is needed to support this.

Liquiritin is one of the flavone compounds found in licorice. It has been found to help lighten skin by preventing tyrosinase from reacting with tyrosine. When the two react, protein is converted to melanin. Melanin is the substance in your body that gives your features pigmentation.

Licorice root is native to Southern Europe and Asia. It has been used in traditional Chinese medicine to help with respiratory issues.

Allantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.

Some studies have shown this ingredient can promote wound healing with higher concentrations.

Allantoin is derived from the comfrey plant but produced synthetically for cosmetic products to ensure purity.

Portulaca Oleracea Extract is an extract of the whole plant of the Purslane, Portulaca oleracea L., Portulacaceae. It has anti-inflammatory, antioxidant, and hydrating properties.

Purslane is very nutritious. It contains omega-3 fatty acids, NMFs, many vitamins, minerals, and antioxidants. The vitamins found in purslane include: Vitamin C, Vitamin A, and Vitamin E.

Purslane is a succulent with an extensive habitat. It is used in traditional Korean medicine to treat irritated skin.

Nowadays, it is becoming a superfood due to its highly nutritious content.

Artemisia Annua Extract comes from a plant more commonly known as annual mugwort.

Artemisia Annua contains flavonoids, a potent antioxidant. Ongoing studies are looking at its ability to increase wound-healing and soothe the skin.

This ingredient has been used in traditional Chinese medicine to help reduce fever.

Fun fact: Artemisia Annua Extract is used to treat Malaria due to its natural anti-malarial properties. The scientist who discovered this has been awarded a Nobel Prize in Medicine.

We don't have a description for Pinus Sylvestris Leaf Extract.

Anthemis Nobilis Flower Oil comes from the Roman Chamomile flower. Anthemis Nobilis Flower Oil is the volatile oil distilled from the dried flower heads of the Anthemis nobilis L., Asteraceae tree.

Chamomile is rich in antioxidants and has anti-inflammatory properties. Several compounds found in chamomile help with soothing, such as bisbolol.

We don't have a description for Rosin Acrylate.

Sodium Stearoyl Glutamate is an emulsifier and helps condition the skin. It is amino acid-based.

In higher amounts, it may act as a cleansing agent.

Polyacrylate Crosspolymer-6 is a texture enhancer and pH adjuster.

It is be used to thicken water-based products and create a gel-texture with a velvet feel.

One manufacturer claims this ingredient to have a pH range of 2-8 and to be biodegradable.

Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.

You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.

Ascorbic Acid is is pure Vitamin C. Ascorbic Acid contains large amounts of antioxidants. It is the largest amount of vitamin C found naturally in our skin. Not only is Vitamin C great for your overall health and immune system, it also has plenty of benefits on your skin.

Vitamin C is best used for brightening skin, such as improving dark spots, acne scars, and hyperpigmentation. This is because Vitamin C has been shown to block the process of skin darkening.

Your skin uses Vitamin C to build collagen. Collagen production plays a role in having a strong skin barrier and having plump skin.

Vitamin C is also a key component in helping your skin regulate collagen, thus making it effective in improving wrinkles and fine lines. As an antioxidant, it helps fight free-radicals. Free-radicals are molecules that may damage your skin cells. These antioxidants also protect skin against UV damage.

Vitamin E helps stabilize and provide a boost in the benefits of ascorbic acid. It helps aid in UV protection but becomes unstable when exposed to UV and air.

Vitamin C does not replace sunscreen!

Ascorbic acid is generally compatible with other ingredients. However, using ascorbic acid with other active ingredients might cause irritation. Two ingredients: copper ions and benzoyl peroxide, will inactivate ascorbic acid completely.

Read more about other types of Vitamin C:

• Sodium Ascorbyl Phosphate
• 3-O-Ethyl Ascorbic Acid
• Ascorbyl Glucoside
• Ascorbyl Palmitate

Foods rich with vitamin C include oranges, strawberries, broccoli, bell peppers, and more. When consuming Vitamin C, your skin receives a portion of the nutrients.

Adenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.

Adenosine has many benefits when used. These benefits include hydrating the skin, smoothing skin, and reducing wrinkles. Once applied, adenosine increases collagen production. It also helps with improving firmness and tissue repair.

Studies have found adenosine may also help with wound healing.

In skincare products, Adenosine is usually derived from yeast.

Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.

The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.

This property also makes Pentylene Glycol a great texture enhancer. It can help thicken or emulsify a product. Emulsifiers help stabilize a product. It does this by preventing certain ingredients from separating.

Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.

Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.

Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.

A type of fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product. They are usually derived from natural fats and oils and therefore do not have the same drying or irritating effect as traditional alcohols.

Emollients help keep your skin soft and hydrated by creating a film that traps moisture in.

Behenyl Alcohol is usually derived from the fats in vegetable oils.

In 2000, Behenyl Alcohol was approved by the US as medicine to reduce the duration of cold sores.

We don't have a description for Poly C10-30 Alkyl Acrylate.

Polyglyceryl-3 Methylglucose Distearate is created from the diester of stearic acid and the condensation product of methylglucose and Polyglycerin-3.

As an emulsifier, it is used to bind ingredients together. Many ingredients, such as oils and water, separate naturally. Emulsifiers prevent them from separating to ensure even consistency in texture.

One of the manufacturer for this ingredient states it is vegetable-based. It is also claimed to be stable at both high and low temperatures.

This ingredient may not be safe for fungal acne. We recommend speaking with a professional if you have any concerns.

Decyl Glucoside is a glucose-based surfactant. Surfactants help clean the skin by trapping oil, sebum, and dirt to be washed away.

It is created from the fatty acids in coconut oil.

Decyl Glucoside also helps stabilize the ingredients in a product by preventing them from separating.

This ingredient is biodegradable and non-toxic. This ingredient is commonly found in baby shampoos.

Decyl Glucoside is sometimes used to stabilize the UV filter Tinosorb.

Tromethamine is an aliphatic compound. An aliphatic compound is an organic compound with open-chained carbon atoms. It is synthetically created. Tromethamine is used to balance pH and improve texture.

As an emulsifier, Tromethamine prevents oil and water ingredients from separating. This helps stabilize the product and elongate a product's shelf life. Tromethamine also makes a product thicker.

Tromethamine helps balance the pH level of a product. Normal pH level of skin is slightly acidic (~4.75-5.5). The acidity of our skin is maintained by our glands and skin biome. Being slightly acidic allows our skin to create an "acid mantle". This acid mantle is a thin barrier that protects our skin from bacteria and contaminants.

Oral Tromethanmine is an anti-inflammatory drug but plays the role of masking, adding fragrance, and/or balancing pH in skincare.

1,3-Propanediol, 2-amino-2-(hydroxymethyl)-

Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.

On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.

Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.

A type of fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product. They are usually derived from natural fats and oils and therefore do not have the same drying or irritating effect as traditional alcohols.

In the case of T Butyl Alcohol, it is most commonly used as a solvent.

Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.

Vitamin E also provides some UV protection by reducing the damage caused by UVB rays. Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.

Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.

Vitamin E aids in stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.

There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.

Carbomer is a polymer of acrylic acid. Its main role is to create gel consistency within products.

Carbomer is commonly found in many types of cosmetics products. It is found to be safe in concentrations up to 15%. However, a high amount of carbomer can cause pilling or balling up of products. Most products contain 1% of less of carbomer.