Overview
What it is
Facial treatment with 8 ingredients
Cool Features
It is fungal acne (malassezia) safe and reef safe
Suited For
It has ingredients that are good for dry skin, scar healing and dark spots
Free From
It doesn't contain any harsh alcohols, common allergens, fragrances, oils, parabens, silicones or sulfates
Fun facts
Asahi Labo is from Japan.
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
Key Ingredients
Benefits
Concerns
Ingredients Explained
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. Remember to stay hydrated!
Learn more about WaterGlycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinHydroquinone is a classic ingredient dermatologists use to fade dark spots (things like melasma, acne marks, sun spots, and freckles).
It works in two ways:
1. By blocking an enzyme called tyrosinase; your skin uses this to make melanin, or the pigment that causes dark spots.
2. By interfering with the pigment making cells themselves so less pigment shows up over time
Just know this ingredient fades spots near the surface of skin and not the deeper ones. It's usually used at 2-4% / twice a day for 3 months, and ALWAYS with sunscreen.
This ingredient is usually well tolerated with short-term use under medical guidance. But possible reactions include irritation, contact dermatitis, and lightening of the skin around the spot you're treating.
You might hear hydroquinone called "cancer-causing". That concern comes from studies where rats were fed high oral doses; no skin cancer cases have been linked to it after more than 50 years of people putting it on their skin.
Long-term, high-strength, and unsupervised use can lead to a condition called ochronosis. This is where the skin turns blue-grey color and sometimes causes nails to turn dark as well.
The rules around it vary by country.
The EU bans it in regular cosmetics and it is prescription only in the US, EU, Japan, Canada, and Australia. Anything you see on the shelf without a prescription is technically not allowed.
Check out the European alternative to hydroquinone here.
SkinSort would like to remind friends from around the world that all skin tones are beautiful!
Learn more about HydroquinonePhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent 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.
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 CitrateSodium metabisulfite is also known as Sodium Pyrosulfite. It is a preservative, antioxidant, and disinfectant.
As a preservative, it helps stabilize cosmetic formulas without affecting their color or scent.
We don't have a description for Caramel yet.
Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.
Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.
However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.
Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH.
In skincare formulas, citric acid can:
While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.
Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations.
Read more about some other popular AHA's here:
Learn more about Citric AcidReviews
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Where it's from
Asahi Labo is a Japanese brand
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.
Read more about usยท Updated March 13, 2026 • Added by I_M
