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Shiseido WASO KOSHIRICE Acne Calming Spot Treatment Ingredients Explained

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Published on June 18, 2023 Submitted by sofifizig

Overview

What it is

Facial treatment with 23 ingredients that contains BHA

Cool Features

It is vegan, fungal acne (malassezia) safe, and reef safe

Suited For

It has ingredients that are good for fighting acne, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing and dark spots

Free From

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

Fun facts

Shiseido is from Japan. This product is used in 6 routines created by our community.

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

You should know

Here's our breakdown of the notable ingredients, benefits, and concerns we determined from the ingredients in this product. Click any item to learn more.

Notable Ingredients

BHA

Benefits

Hydrating
Good For Oily Skin
Redness Reducing
Reduces Irritation
Reduces Large Pores
Dark Spots
Scar Healing
Acne Fighting
Brightening (2)

Concerns

Drying
Irritating
Rosacea
Eczema (2)

Ingredient Info

Click any item below to learn more and view relevant ingredients.
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free

Ingredients Overview

Here's our quick-to-read summary of the ingredients in this product. Keep scrolling if you'd like to learn more about what each ingredient does!
Ingredient
Features
1
Masking, Preservative, Skin Conditioning
BHA IconPreservative IconCan worsen Dry Skin IconGood for Oily Skin IconMay cause irritation IconGood for Minimizing Pores IconGood for Scar Healing IconHelps fight Acne IconMay worsen Eczema IconMay worsen Rosacea IconHelps brighten skin Icon
2
Skin Conditioning, Solvent
3
Humectant, Masking, Skin Conditioning, Solvent
1 / 0
4
Masking, Solvent
5
Emollient, Skin Conditioning, Skin Protecting
1 / 0
Silicon Icon
6
Humectant, Solvent
7
Humectant, Solvent
8
Stabilising
9
Humectant, Moisturising, Skin Conditioning
10
Humectant, Skin Conditioning, Skin Protecting, Solvent
0 / 0
Helps hydrate Dry Skin IconHelps brighten skin Icon
11
Skin Conditioning
12
Humectant, Skin Conditioning
Helps reduce Skin Redness IconHelps reduce irritation IconGood for Dark Spots Icon
13
Skin Conditioning
14
Skin Conditioning
15
Humectant
16
Emollient, Skin Conditioning
Fatty Alcohol Icon
17
Emulsion Stabilising, Gel Forming
1 / 0
18
Buffering
19
Buffering
20
Emulsion Stabilising
21
Antioxidant, Masking
Antioxidant Icon
22
Preservative
Preservative Icon
23
Masking, Preservative
Preservative IconMay worsen Eczema Icon

Ingredients Explained

This product contains 23 ingredients. Click on any ingredient to learn more about it
1
What it does: Masking, Preservative, Skin Conditioning
Community Rating: Liked

Salicylic Acid (also known as beta hydroxy acid or BHA) is one of the most well-known ingredients for treating skin that struggles with blackheads and acne. It helps to exfoliate both the skin's surface and pores, and also acts as an anti-inflammatory agent.

This multitasking property makes it a great ingredient for cleaning out pores, controlling oil production, and reducing inflammation.

Unlike AHAs which are water soluble, Salicylic Acid is oil soluble. This means that it's able to exfoliate the inside of pores and reduce blackheads.

Concentrations of 0.5-2% are recognized by the U.S. FDA as an over-the-counter topical acne product.

It can cause irritation and/or dryness if one's skin already has a compromised moisture barrier, so it's best to focus on repairing that before introducing a Salicylic Acid into your routine.

In general, Salicylic Acid is a great ingredient for oily acne-prone skin.

While salicylic acid does not increase sun-sensitivity, we still recommend wearing SPF.

If you are looking for the ingredient called BHA or Butylated Hydroxyanisole, click here.

Learn more about Salicylic Acid
2
What it does: Skin Conditioning, Solvent
Community Rating: 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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!

Learn more about Water
3
What it does: Humectant, Masking, Skin Conditioning, Solvent
Community Rating: Mixed

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.

4
What it does: Masking, Solvent
Community Rating: Disliked

Dipropylene Glycol is a synthetically created stabilizer and solvent. It is a part of the glycol class in the alcohol family.

Dipropylene Glycol helps dissolve and evenly distribute ingredients. It also helps decrease viscosity and thin out texture.

As a masking agent, Dipropylene Glycol can be used to cover the smell of other ingredients. However, it does not have a scent.

Studies show Dipropylene Glycol is considered safe to use in skincare.

Learn more about Dipropylene Glycol
5
What it does: Emollient, Skin Conditioning, Skin Protecting
Community Rating: Very Disliked

Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.

Dimethicone has been found increase absorption in skin, boosting the benefits of other ingredients. While there is concern for the safety of dimethicone, the levels used in skincare are safe for use.

6
What it does: Humectant, Solvent

We don't have a description for Peg-6.

7
What it does: Humectant, Solvent

We don't have a description for Peg-32.

We don't have a description for Peg-240/Hdi Copolymer Bis-Decyltetradeceth-20 Ether.

9
What it does: Humectant, Moisturising, Skin Conditioning

You might know this ingredient as a sugar substitute in foods. It is a sugar alcohol with humectant properties.

Humectants attract water to your skin (like glycerin or hyaluronic acid).

Fun fact: Erythritol can be naturally found in some fermented foods.

Learn more about Erythritol
10
What it does: Humectant, Skin Conditioning, Skin Protecting, Solvent
Community Rating: 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
11
What it does: Skin Conditioning

We don't have a description for Peg/Ppg-14/7 Dimethyl Ether.

12
What it does: Humectant, Skin Conditioning
Community Rating: Liked

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.

Learn more about Dipotassium Glycyrrhizate
13
What it does: Skin Conditioning

We don't have a description for Paeonia Albiflora Root Extract.

14
What it does: Skin Conditioning
Community Rating: Loved

We don't have a description for Hydrolyzed Rice Extract.

15
What it does: Humectant

We don't have a description for Citrus Depressa Peel Extract.

16
What it does: Emollient, Skin Conditioning
Community Rating: Very Disliked

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.

17
What it does: Emulsion Stabilising, Gel Forming
Community Rating: Disliked

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.

18
What it does: Buffering
Community Rating: Very Disliked

Potassium hydroxide is commonly known as caustic potash. It is used to fix the pH of a product or as a cleaning agent in soap. In cleansers, it is used for the saponification of oils.

Sapnification is the process of creating fatty acid metal salts from triglycerides and a strong base. During this process, Potassium Hydroxide is used up and is not present in the final product.

Using high concentrations of Potassium Hydroxide have shown to irritate the skin.

Learn more about Potassium Hydroxide
19
What it does: Buffering

We don't have a description for Sodium Metaphosphate.

20
What it does: Emulsion Stabilising
Community Rating: Very Disliked

Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken and improve the texture of products.

Acrylates/C10-30 Alkyl Acrylate Crosspolymer is also an emulsifier. Due to its properties, it can prevent water and oil ingredients from separating.

21
What it does: Antioxidant, Masking
Community Rating: Very Disliked

BHT is a synthetic antioxidant. As an antioxidant, it helps your body fight off free-radicals. Free-radicals are molecules that may damage your skin cells.

BHT also helps stabilize products and prevent them from degrading. Many products are sensitive to air and light. BHT prevents them from breaking down when exposed.

22
What it does: Preservative
Community Rating: Very Disliked

Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and microbial growth. By itself, it has a scent that is similar to that of a rose.

It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.

23
What it does: Masking, Preservative
Community Rating: Disliked

Benzoic Acid is used to preserve and adjust the pH of products.

The antimicrobial property of Benzoic Acid helps elongate a product's shelf life. Its main role is to reduce fungi growth and is not found to be effective at fighting bacteria. Therefore Benzoic Acid is always added along with other preservatives.

In its pure form, Benzoic Acid looks like a white crystalline solid. It has slight solubility in water.

The name of Benzoic Acid comes from gum benzoin, which used to be the sole source of deriving this ingredient. Benzoic Acid is the most simple aromatic carboxylic acid.

Benzoic Acid is naturally occuring in strawberries, mustard, cinnamon, and cloves. It has a slight scent but is not considered to be a fragrance.

Learn more about Benzoic Acid
Embed Ingredients

Here's what our community thinks of the 23 ingredients in this product ✨

22% are loved or liked
4% have mixed ratings
39% are disliked or very disliked
35% have no rating yet

When to use

Here's some more info on how this product is used by our community.

When to use

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