Kiku-Masamune Sake Brewing Sake Skin Care Lotion Versus Kiku-Masamune Sake Brewing Sake Skin Care Lotion
This brightening toner is formulated around Rice Ferment Filtrate and Arbutin to brighten dull-looking skin.
This hydrating toner is formulated around Ceramide NP and Niacinamide to hydrate skin and strengthen the skin barrier.
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningButylene Glycol
HumectantArginine
MaskingGlutamic Acid
HumectantRice Ferment Filtrate
Skin ConditioningArbutin
AntioxidantPotassium Ascorbyl Tocopheryl Phosphate
AntioxidantSodium Tocopheryl Phosphate
AntioxidantLeucine
Skin Conditioning1,2-Hexanediol
Skin ConditioningCitric Acid
BufferingStyrene/Acrylates Copolymer
Dipotassium Glycyrrhizate
HumectantRetinyl Palmitate
Skin ConditioningArachis Hypogaea Oil
Skin ConditioningHydrogenated Lecithin
EmulsifyingPEG-60 Hydrogenated Castor Oil
EmulsifyingGlycerin
HumectantSodium Citrate
BufferingTocopherol
AntioxidantPhenoxyethanol
PreservativeMethylparaben
PreservativeParfum
MaskingWater, Butylene Glycol, Arginine, Glutamic Acid, Rice Ferment Filtrate, Arbutin, Potassium Ascorbyl Tocopheryl Phosphate, Sodium Tocopheryl Phosphate, Leucine, 1,2-Hexanediol, Citric Acid, Styrene/Acrylates Copolymer, Dipotassium Glycyrrhizate, Retinyl Palmitate, Arachis Hypogaea Oil, Hydrogenated Lecithin, PEG-60 Hydrogenated Castor Oil, Glycerin, Sodium Citrate, Tocopherol, Phenoxyethanol, Methylparaben, Parfum
Water
Skin ConditioningGlycerin
HumectantButylene Glycol
HumectantDipropylene Glycol
HumectantRice Ferment Lees
HumectantGlutamic Acid
HumectantArginine
MaskingLeucine
Skin ConditioningCeramide NP
Skin ConditioningCeramide AP
Skin ConditioningNiacinamide
SmoothingPlacental Extract
Arbutin
AntioxidantDipotassium Glycyrrhizate
HumectantWhey Protein
Skin ConditioningTriethylhexanoin
MaskingEthylhexylglycerin
Skin ConditioningMethyl Gluceth-10
EmulsifyingPolysorbate 20
EmulsifyingPolysorbate 80
EmulsifyingAcrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingPEG-60 Hydrogenated Castor Oil
EmulsifyingIsoceteth-20
EmulsifyingHydroxyethylcellulose
Emulsion StabilisingSodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingSodium Hydroxide
BufferingPhenoxyethanol
PreservativeParfum
MaskingWater, Glycerin, Butylene Glycol, Dipropylene Glycol, Rice Ferment Lees, Glutamic Acid, Arginine, Leucine, Ceramide NP, Ceramide AP, Niacinamide, Placental Extract, Arbutin, Dipotassium Glycyrrhizate, Whey Protein, Triethylhexanoin, Ethylhexylglycerin, Methyl Gluceth-10, Polysorbate 20, Polysorbate 80, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, PEG-60 Hydrogenated Castor Oil, Isoceteth-20, Hydroxyethylcellulose, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sodium Hydroxide, Phenoxyethanol, Parfum
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Arbutin is a naturally occurring molecule (found in bearberry, cranberry, and blueberry) that is used in skincare as a gentle brightening agent to fade dark spots, melasma, and post-inflammatory hyperpigmentation.
Chemically, it is a sugar-bound form of hydroquinone.
It works mainly by inhibiting tyrosinase, the enzyme your skin uses to make melanin. This means less new pigment gets produced over time.
There are two forms you'll see on labels: beta-arbutin (listed as just "Arbutin") and alpha-arbutin (the more stable and effective of the two).
The evidence behind this is solid: it's less cytotoxic to melanocytes than hydroquinone and comparably effective with kojic acid for hyperpigmentation.
One human study using a 10% solution reduced UVR-induced hyperpigmentation by 43.5% (jumping to 63.3% when paired with aloesin).
More recent clinical work backs it up too; a 2025 study on a 5% alpha-arbutin + 2% kojic acid cream found it comparable to triple combination prescription formulas but with lower recurrence for melasma.
Typical usage in cosmetics serums land in the 1-2% range.
It's a well-tolerated, non-irritating, and non-photoreactive ingredient that also gives some antioxidant benefits too.
Learn more about ArbutinArginine is a semi-essential amino acid. This just means our bodies can product a bit on its own, but sometimes needs a little boost from food sources.
It is a part of your skin's natural moisturizing factor (NMF), or the water-loving molecules in your outermost layer of skin (stratum corneum) that keeps everything hydrated and happy.
Here's an interesting thing about Arginine: your skin converts it into urea through the Krebs-Henseleit urea cycle. Urea is one of the most effective humectants your skin naturally produces.
A clinical study showed applying 2.5% arginine hydrochloride to atopic dermatitis skin showed significant urea levels in the stratum corneum and improved moisture in just four weeks.
Arginine is also a precursor to nitric oxide; nitric oxide improves microcirculation and supports wound healing and collagen synthesis.
One study found that an amino acid complex containing Arginine reduced skin irritation, improved hydration, and accelerated skin repair in clinical / in-vivo studies.
Arginine itself is an amino acid and not a fatty acid, oil, or ester. On its own, it's not a direct food source for Malassezia, or the yeast that causes fungal acne.
Learn more about ArginineButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.
Learn more about Butylene GlycolDipotassium 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 GlycyrrhizateGlutamic Acid is an amino acid that is found in all living organisms. Our bodies use this to help nerve cells in the brain communicate with other cells.
In cosmetics, glutamic acid is a famous humectant. It draws water from the air to your skin, keeping your skin hydrated (like hyaluronic acid).
An in-vitro study from 2024 found glutamic acid to play a role in inhibiting inflammation and thus a potential skin-soothing ingredient.
Other studies show it to be have potential wound healing, skin barrier repair, and hair growth properties.
Glutamic acid has poor solubility in water and other solvents.
Learn more about Glutamic AcidGlycerin (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 GlycerinLeucine is a small amino acid and one of the building blocks your body uses to make proteins.
It's also naturally found in your skin as part of your Natural Moisturizing Factor (NMF). Your NMF is a mix of water-binding molecules that keeps the outer skin layer hydrated and flexible.
In skincare, it's mainly used as a skin conditioning ingredient that helps reinforce the same moisture-retention function.
You'll usually see it used at low percentages (generally under 5%) which is in line with how amino acids are used in cosmetics.
Learn more about LeucineParfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Also called "fragrance", this ingredient can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "parfum" in the ingredients list is a different mixture.
For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations.
The term 'parfum' or 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.
For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance by INCI standards.
One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.
Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.
Parfum can also be used to mask or cover an unpleasant scent.
The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.
Learn more about ParfumPeg-60 Hydrogenated Castor Oil comes from hydrogenated castor oil. It is a solubilizer and emulsifier.
As a solubilizer, it helps dissolve ingredients into a water-based version. It is also an emulsifer. Emulsifier help prevent oils and water from separating. Both these properties help create evenly-spread and uniform products.
Basically, Peg-60 Hydrogenated Castor Oil helps hold ingredients together.
Learn more about PEG-60 Hydrogenated Castor OilPhenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.
On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.
Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.
Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.
Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.
Learn more about PhenoxyethanolWater. 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 Water