Versus

Tatcha The Silk Serum Versus Tata Harper Superkind Bio-Barrier Serum

Serum
Serum
American Brand United States
American Brand United States

Updated on July 19, 2023

Overview

What they are

These products are both cruelty-free and reef safe serums. They have a total of 9 ingredients in common

Suited For

They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin and dark spots

Free From

They both do not contain any harsh alcohols, parabens, silicones or sulfates

What's Inside

They both contain common allergens, fragrances and oils

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

About this product

About this product

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
The Silk Serum

Water

Skin Conditioning

Saccharomyces/Rice Ferment Filtrate

Skin Conditioning

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon

Betaine

Humectant
Helps hydrate Dry Skin IconHelps reduce irritation IconGood for Dark Spots Icon

Pentylene Glycol

Skin Conditioning
Superkind Bio-Barrier Serum

Calendula Officinalis Flower/Leaf/Stem Juice

Skin Conditioning

Propanediol

Solvent

Water

Skin Conditioning

Helianthus Annuus Seed Oil

Emollient
0 / 0 Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon

Butylene Glycol

Humectant
1 / 0 Helps hydrate Dry Skin Icon

Lactobacillus Ferment

Skin Conditioning

Lauryl Laurate

Skin Conditioning
Not safe for Fungal Acne Icon

Leuconostoc Ferment Filtrate

Antimicrobial

Punica Granatum Sterols

Skin Conditioning
Not safe for Fungal Acne Icon

Caprylic/Capric Triglyceride

Masking

Glyceryl Stearate Citrate

Emollient
Not safe for Fungal Acne Icon

Shea Butter Ethyl Esters

Emollient
Not safe for Fungal Acne Icon

Squalane

Emollient
1 / 0 Helps hydrate Dry Skin Icon

Ceramide NP

Skin Conditioning
Ceramide IconHelps hydrate Dry Skin IconHelps reduce irritation IconHelps with Anti-Aging Icon

Ophiopogon Japonicus Root Extract

Skin Conditioning

Centella Asiatica Extract

Cleansing
Helps reduce Skin Redness IconHelps reduce irritation Icon

Oenothera Biennis Oil

Emollient
3 / 2 Oil IconHelps reduce irritation IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Pyrus Malus Seed Oil

Emollient
Oil Icon

Ricinus Communis Seed Oil

Masking
0-1 / 0 Fragrance IconOil IconNot safe for Fungal Acne Icon

Vitis Vinifera Seed Oil

Emollient
2-3 / 0 Oil IconNot safe for Fungal Acne Icon

Salvia Miltiorrhiza Root Extract

Skin Conditioning

Avena Sativa Kernel Oil

Skin Conditioning
Oil IconNot safe for Fungal Acne Icon

Sodium Hyaluronate

Humectant
0 / 0 Hyaluronic Acid Icon

Alaria Esculenta Extract

Skin Protecting

Rhododendron Ferrugineum Extract

Masking

Borago Officinalis Leaf Extract

Skin Conditioning

Calendula Officinalis Flower Extract

Masking
Fragrance IconHelps reduce Skin Redness IconHelps reduce irritation Icon

Chamomilla Recutita Flower Extract

Masking
Helps reduce Skin Redness IconHelps reduce irritation Icon

Lavandula Angustifolia Extract

Skin Conditioning
May cause irritation IconEU Allergen Icon

Medicago Sativa Extract

Tonic

Bacillus Ferment

Skin Conditioning
Not safe for Fungal Acne Icon

Chlorella Vulgaris Extract

Skin Conditioning

Algae Extract

Emollient
May worsen Oily Skin Icon

Laminaria Digitata Extract

Skin Protecting

Glycyrrhiza Glabra Root Extract

Bleaching
Good for Dark Spots Icon

Butyrospermum Parkii Butter

Skin Conditioning
Helps hydrate Dry Skin IconMay worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Glyceryl Glucoside

Humectant

Saccharide Isomerate

Humectant

Stevioside

Masking

Magnolia Officinalis Bark Extract

Antimicrobial

Simmondsia Chinensis Seed Oil

Emollient
0-2 / 0 Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon

Hydrogenated Lecithin

Emulsifying

Polyglyceryl-3 Stearate

Emulsifying
Not safe for Fungal Acne Icon

Xanthan Gum

Emulsifying

Maltodextrin

Absorbent

Phenethyl Alcohol

Masking

Phytic Acid

AHA IconGood for Oily Skin IconHelps brighten skin IconMay worsen Rosacea Icon

Citric Acid

Buffering
AHA IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay worsen Rosacea Icon

Sodium Citrate

Buffering

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

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
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
Masking, Skin Conditioning

This ingredient is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.

It helps thicken a product's formula and makes it easier to spread by dissolving clumping compounds.

Caprylic Triglyceride is made by combining glycerin with coconut oil, forming a clear liquid.

While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this.

Learn more about Caprylic/Capric Triglyceride
Solvent

Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin. 

It’s often used to:

Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.

Learn more about Propanediol
Emollient, Skin Conditioning

Squalane is an emollient that helps the skin hold onto moisture. It's an oily liquid that occurs naturally in certain types of fish and plant oils.

Because squalane boosts hydration in the skin, it also comes with plenty of benefits: it is an antioxidant and can help fight free radicals and skin damage. Squalane is also found to have a detoxifying effect when applied.

Squalane comes from squalene, which occurs naturally within the sebum of our skin. It is one of the oils our skin produces to keep itself hydrated. Squalane is the hydrogenated version of squalene and has a longer shelf life.

Research shows that squalane is non-irritating (even at 100% concentration).

In general, it's a fantastic ingredient. It does a great job at hydrating the skin, and it's suitable for those with sensitive skin.

The source of squalane may impact malassezia / fungal acne. This is because olive oil derived squalane can contain impurities such as fatty acids and plant waxes. Sugarcane derived squalane is recommended for anyone with malassezia concerns.

Is squalane vegan?

This depends on the source. Squalane can be derived from both plants and animals. Most squalane used in skincare comes from plants.

Please note: the source of squalane is only known if disclosed by the brand. We recommend reaching out to the brand if you have any questions about their squalane.

Read more about squalene with an "e".

Learn more about Squalane
Emollient, Masking, Skin Conditioning

Helianthus Annuus Seed Oil is the oil derived from the seeds of a Sunflower. Sunflower seed oil is non-fragrant. It is an emollient, meaning it helps to soften the skin.

Sunflower seed oil contains many fatty acids. The fatty acids found in sunflower seeds include (from highest amount to least): linoleic acid, myristic acid, palmitic acid, stearic acid, arachidic acid, oleic acid, and linolenic acid.

These fatty acids help the skin create ceramides. Ceramides play a role in repairing the skin barrier.

Helianthus Annuus Seed Oil helps moisturize the skin. This in turn helps the skin look more rejuvenated and smoother.

Sunflowers are rich in vitamin E.

Historians believe Indigenous cultures of North America domesticated sunflowers before corn. Thus they relied on sunflower oil for a variety of uses. One such use is moisturizing skin and hair.

Sunflower seed oil may not be fungal acne safe. We recommend speaking with a professional if you have any concerns.

Learn more about Helianthus Annuus Seed Oil
Humectant, Masking, Skin Conditioning

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.
  • It has mild preservative properties.

Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.

Buffering, Masking

Sodium Citrate is the sodium salts of citric acid. In skincare, it is used to alter pH levels and acts as a preservative.

Its main functions are to maintain the pH of a product and neutralize metal ions.

The acidity of our skin is maintained by our glands and skin biome; normal pH level of skin is slightly acidic (~4.75-5.5).

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.

Learn more about Sodium Citrate
Buffering, Masking

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

As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and even out skin tone.

If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.

Read more about some other popular AHA's here:

Learn more about Citric Acid

When to use

45 Routines
44% use in am
58% use in pm
84% use every day
When to use See routines that use it ->
3 Routines
67% use in am
33% use in pm
100% use every day