Explore Routine Login
Versus

Estelle & Thild Super Bioadvanced 10% Vitamin-C Glow Booster Versus Blue Lagoon Iceland BL+ The Serum

Serum
Serum
Swedish Brand Sweden
Icelander Brand Iceland

Updated on April 24, 2024

Overview

What they are

These products are both vegan, cruelty-free, fungal acne (malassezia) safe, and reef safe serums. They have a total of 6 ingredients in common

Cool Features

They both contain hyaluronic acid and Vitamin C

Suited For

They're both likely to be good for anti aging, dry skin, brightening skin, scar healing, dark spots and better texture

Free From

They both do not contain any harsh alcohols, common allergens, fragrances, oils, parabens, silicones or sulfates

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.

Ingredient Info

Click any item below to learn more and see relevant ingredients

Free from

Safety & Ethics

Swedish Brand

Brand country of origin

Free from

Safety & Ethics

Icelander Brand

Brand country of origin

At a glance

Click on any of the items below to learn more

Ingredients, at a glance

What's in this product, and how it might affect your skin.

Notable Ingredients

Benefits

Ingredients, at a glance

What's in this product, and how it might affect your skin.

Notable Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Super Bioadvanced 10% Vitamin-C Glow Booster
Water 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.

Loved by users
Learn more
Malus Domestica Fruit Water Emollient, Skin Conditioning

We don't have a description for Malus Domestica Fruit Water yet.

Not enough ratings
Learn more
Ascorbyl Glucoside Antioxidant
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps brighten skin Icon

Ascorbyl Glucoside is a stable form of Vitamin C. It is created by combining glucose from starch.

Liked by users
Vitamin CVitamin C IconAntioxidantAntioxidant Icon6 Benefits
Learn more
Pentylene Glycol Skin Conditioning, Solvent

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.

Mixed reviews
Learn more
Glycerin Humectant, Skin Conditioning, Skin Protecting
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon

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

0 Com. / 0 Irr.
Loved by users
2 Benefits
Learn more
Sodium Hydroxide Buffering

Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.

Mixed reviews
Learn more
Sodium Hyaluronate Humectant, Skin Conditioning
0 / 0 Hyaluronic Acid Icon

Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.

0 Com. / 0 Irr.
Loved by users
Hyaluronic AcidHyaluronic Acid Icon
Learn more
Lactobacillus Ferment Skin Conditioning

Lactobacillus Ferment is created by fermenting the Lactobacillus bacteria. It helps keep our skin's natural barrier and microbiome healthy.

Liked by users
Learn more
Lactobacillus Skin Conditioning

Lactobacillus is a type of bacteria. It makes up most of the food fermenting lactic acid bacteria. It is used to create wine, yogurt, cheese, sauerkraut, pickles, beer, cider, kimchi, cocoa, kefir.

Liked by users
Learn more
Cocos Nucifera Fruit Extract Emollient, Skin Conditioning

Cocos Nucifera Fruit Extract comes from the meat of the coconut fruit. It is an emollient and skin conditioner with antioxidant properties.

Disliked by users
Learn more
Aloe Barbadensis Leaf Juice Powder Skin Conditioning

Aloe Barbadensis Leaf Juice Powder comes from the aloe plant.

Liked by users
Learn more
Sodium Gluconate Skin Conditioning

This is the synthetic salt of gluconic acid, a form of PHA and mild exfoliant.

Loved by users
Learn more
BL+ The Serum
Sea Water Humectant, Solvent

We don't have a description for Sea Water yet.

Loved by users
Learn more
Water 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.

Loved by users
Learn more
Glycerin Humectant, Skin Conditioning, Skin Protecting
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon

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

0 Com. / 0 Irr.
Loved by users
2 Benefits
Learn more
Propanediol Solvent

Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.

Liked by users
Learn more
Pentylene Glycol Skin Conditioning, Solvent

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.

Mixed reviews
Learn more
Ascorbyl Glucoside Antioxidant
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps brighten skin Icon

Ascorbyl Glucoside is a stable form of Vitamin C. It is created by combining glucose from starch.

Liked by users
Vitamin CVitamin C IconAntioxidantAntioxidant Icon6 Benefits
Learn more
Sodium Hyaluronate Humectant, Skin Conditioning
0 / 0 Hyaluronic Acid Icon

Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.

0 Com. / 0 Irr.
Loved by users
Hyaluronic AcidHyaluronic Acid Icon
Learn more
Sodium Levulinate Skin Conditioning

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

Liked by users
Learn more
Sodium Anisate Antimicrobial

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

Liked by users
Learn more
Sodium Hydroxide Buffering

Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.

Mixed reviews
Learn more
Lecithin Emollient, Emulsifying, Skin Conditioning

Lecithin is a term for a group of substances found in plants, animals, and humans. They are made up of mixture of fatty acids. These fatty acids usually are a mixture of phosphoric acid's choline ester connected to stearic, oleic, and palmitic acids. Most lecithins are created from plant ingredients scuh as sunflower.

Mixed reviews
Learn more
Biosaccharide Gum-1 Skin Conditioning

Biosaccharide Gum-1 is a sugar created from fermented sorbitol. Most sorbitol is made from potato starch.

Loved by users
Learn more
Algae Extract Emollient, Humectant, Masking
May worsen Oily Skin Icon

Algae Extract is a confusing name. This is because algae is an informal term for a group of 30,000 aquatic organisms that can photosynthesize.

Disliked by users
May worsen Oily SkinMay worsen Oily Skin Icon
Learn more
Silica Abrasive, Absorbent
Exfoliant IconMay worsen Eczema IconMay worsen Rosacea Icon

Silica is a mineral naturally found in our skin. It helps to thicken and smooth the texture of a product. It also acts as an agent for other ingredients by increasing the absorption of other ingredients into the skin.

Disliked by users
ExfoliantExfoliant Icon2 Concerns
Learn more
Glyceryl Caprylate Emollient, Emulsifying

Glyceryl Caprylate comes from glycerin and caprylic acid, a fatty acid from coconut.

Mixed reviews
Learn more
Citric Acid Buffering, Masking
AHA IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation IconMay worsen Rosacea Icon

Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).

Disliked by users
AHAAHA Icon4 Benefits2 Concerns
Learn more
Tocopherol Antioxidant, Masking, Skin Conditioning
0-3 / 0-3 Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation Icon

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.

0-3 Com. / 0-3 Irr.
Liked by users
Vitamin EVitamin E IconAntioxidantAntioxidant Icon4 BenefitsMay cause irritationMay cause irritation Icon
Learn more

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Skin Conditioning, Solvent
Loved

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
Antioxidant
Liked

Ascorbyl Glucoside is a stable form of Vitamin C. It is created by combining glucose from starch.

When applied to skin, Ascorbyl Glucoside turns into Ascorbic Acid.

Ascorbyl Glucoside is an antioxidant. Antioxidants help fight free-radicals, or molecules that may damage skin cells.

It can help to reduce redness, improve skin texture, reduce the effects of aging, reduce the visibility of dark spots, and brighten skin.

Read more about other types of Vitamin C:

Learn more about Ascorbyl Glucoside
Skin Conditioning, Solvent
Mixed

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.

Learn more about Pentylene Glycol
Humectant, Skin Conditioning, Skin Protecting
Loved

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
Buffering
Mixed

Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.

In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.

Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.

"Alkaline" refers to a high pH level. A low pH level would be considered acidic.

Learn more about Sodium Hydroxide
Humectant, Skin Conditioning
Loved

Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.

Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.

Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.

These are some other common types of Hyaluronic Acid:

Learn more about Sodium Hyaluronate

When to use

1 Routine
0% use in am
100% use in pm
100% use every day
7 Routines
57% use in am
43% use in pm
71% use every day