KuSu Sunscreen Cream PP Pro Tone-Up Base SPF50+ PA++++

Aisei

KuSu Sunscreen Cream PP Pro Tone-Up Base SPF50+ PA++++

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About this product

The Aisei KuSu Sunscreen Cream PP Pro Tone-Up Base SPF50+ PA++++ is a sunscreen. Our analysis of its 40 ingredients (35 low-risk) rates it Excellent (99/100). Based on its ingredients, it looks well-suited to dry and sensitive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Sunscreen
Ingredients
40
Low-risk
35
Fragrance
Fragrance-free
Origin
Japan
SPF
50 · blocks 98.0% UVB · PA++++
Data updated
May 2026

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 11/5
Good for dry skin
Diisostearyl Malate Dipotassium Glycyrrhizate Squalane Aluminum Hydroxide Butylene Glycol Glycerin Trimethylsiloxysilicate Triethylhexanoin Polygonum Aviculare Extract Dimethicone Cyclopentasiloxane
Caution for dry skin
Diisostearyl Malate Sorbitan Sesquioleate Sorbitan Sesquiisostearate Stearic Acid Glycerin
Oily/Acne-Prone Skin No data
Sensitive Skin 6/5
Good for sensitive skin
Zinc Oxide Arbutin Ascorbyl Glucoside Aluminum Hydroxide Glycerin Dimethicone
Caution for sensitive skin
Sodium Chloride Stearic Acid Butylene Glycol Glycerin Triethylhexanoin

Ingredients list

40 total
Lower hazard (1) Higher hazard (6)
All40 Skin Conditioning29 Hair Conditioning9 Emollient8 Viscosity Controlling7 Skin Protecting6 Solvent5 Humectant5 Emulsion Stabilising4
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
3
A
Cyclopentasiloxane
(Hair Conditioning, Skin Conditioning, Emollient, Solvent)
Silicone
Silicone
2
3
Zinc Oxide
(Bulking Agent, Cosmetic Colorant, Skin Protecting, Sunscreen Agent)
Good for Oily Skin
Good for Oily Skin
1
3
Titanium/Titanium Dioxide
(Cosmetic Colorant, Opacifying)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
A
Triethylhexanoin
(Fragrance, Hair Conditioning, Antistatic Agent, Emollient, Masking, Refatting, Skin Conditioning, Solvent)
3
A
PEG-10 Dimethicone
(Hair Conditioning, Skin Conditioning)
1
Polymethylsilsesquioxane
(Opacifying)
1
Diphenylsiloxy Phenyl Trimethicone
(Antifoaming Agent, Hair Conditioning, Skin Conditioning)
1
A
Disteardimonium Hectorite
(Stabilising, Viscosity Controlling)
1
A
Sorbitan Sesquiisostearate
(Emulsifying, Surfactant)
1
A
Dipotassium Glycyrrhizate
(Flavoring Agent, Skin Conditioning, Humectant)
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
1
A
Aluminum Dimyristate
(Anticaking Agent, Emulsion Stabilising, Viscosity Increasing Agent, Opacifying, Viscosity Controlling)
1
Polygonum Aviculare Extract
(Emollient)
1
Vaccinium Myrtillus Fruit Extract
(Skin Conditioning)
1
Ascorbyl Glucoside
(Antioxidant)
1
Arbutin
(Antioxidant, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
Tremella Fuciformis Polysaccharide
(Emulsion Stabilising, Film Forming, Skin Conditioning)
Ceramide AP
(Hair Conditioning, Skin Conditioning)
1
Ceramide NP
(Hair Conditioning, Skin Conditioning)
1
A
Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning)
oxothiazolidine
(Skin Protecting)
BUTYROSPERMUM PARKII BUTTER EXTRACT
(Skin Conditioning)
1
Alteromonas Ferment Extract
(Skin Conditioning)
1
Rosa Roxburghii Fruit Extract
(Tonic)
1
Coix Lacryma-Jobi Ma-yuen Seed Extract
(Skin Conditioning)
1
Fullerenes
(Antimicrobial, Skin Conditioning)
1
A
Dimethicone/Vinyl Dimethicone Crosspolymer
(Viscosity Controlling)
4
6
A
PEG-3 Dimethicone
(Hair Conditioning, Skin Conditioning)
1
A
Diisostearyl Malate
(Skin Conditioning, Emollient, Surfactant)
1
A
Aluminum Hydroxide
(Emollient, Humectant, Opacifying, Skin Protecting, Viscosity Controlling)
1
Sodium Chloride
(Bulking Agent, Masking, Oral Care Agent, Viscosity Controlling)
2
Iron Oxides
(Colorant, Cosmetic Colorant)
1
A
Synthetic Fluorphlogopite
(Bulking Agent, Viscosity Increasing Agent, Viscosity Controlling)
1
A
Stearic Acid
(Fragrance, Sufactant, Emulsifying, Surfactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Stearic Acid., Emulsion Stabilising, Masking, Refatting)
Bad for Oily Skin
Bad for Oily Skin
Fungal Acne
Fungal Acne Trigger
1
Triethoxycaprylylsilane
(Binding Agent, Binding)
1
A
Sorbitan Sesquioleate
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
B
Trimethylsiloxysilicate
(Antifoaming Agent, Emollient, Skin Conditioning)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Ceramides
Locks in moisture and supports skin barrier.
Mineral UV Filter
Reflects UV rays using mineral barriers.
Antioxidants
Shields skin from free radical damage.
Vitamin C
Brightens, evens tone, and supports collagen.
Arbutin
Gently brightens and evens skin tone.

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Barrier RepairStrengthen and restore your skin's natural barrier.
Reduces IrritationEases discomfort and supports skin resilience.
Redness ReducingSoothes visible redness and calms irritation.
Scar HealingImproves the look of marks and scars.
Anti-AgingSoftens lines and helps skin look youthful.
BrighteningRestores radiance to dull, tired skin.
Good For Oily SkinBalances oil and helps reduce shine.

Concerns

Contains silicone
Not fungal acne (malassezia) safe

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Titanium/Titanium Dioxide
Cosmetic colorant, Opacifying
Low-to-moderate hazard.Read moreShow less
EWG 1–3 Cosmetic colorantOpacifying
Triethylhexanoin
Fragrance, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceHair conditioningAntistatic agentEmollientMaskingRefattingSkin conditioningSolvent
PEG-10 Dimethicone
Hair conditioning, Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Hair conditioningSkin conditioning
Polymethylsilsesquioxane
Opacifying
Low-hazard ingredient.Read moreShow less
EWG 1 Opacifying
Diphenylsiloxy Phenyl Trimethicone
Antifoaming agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Antifoaming agentHair conditioningSkin conditioning
Disteardimonium Hectorite
Stabilising, Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A StabilisingViscosity controlling
Sorbitan Sesquiisostearate
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmulsifyingSurfactant
Dipotassium Glycyrrhizate
Flavoring agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Flavoring agentSkin conditioningHumectant
Aluminum Dimyristate
Anticaking agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Anticaking agentEmulsion stabilisingViscosity increasing agentOpacifyingViscosity controlling
Polygonum Aviculare Extract
Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 Emollient
Vaccinium Myrtillus Fruit Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Ascorbyl Glucoside
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 Antioxidant
Tremella Fuciformis Polysaccharide
Emulsion stabilising, Film forming
Limited public safety data.Read moreShow less
EWG N/A Emulsion stabilisingFilm formingSkin conditioning
Ceramide AP
Hair conditioning, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningSkin conditioning
+ 16 more — see the full ingredients list above
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
Cyclopentasiloxane
Hair conditioning, Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Hair conditioningSkin conditioningEmollientSolvent Silicone
Zinc Oxide
Bulking agent, Cosmetic colorant
Low-to-moderate hazard.Read moreShow less
EWG 2–3 Bulking agentCosmetic colorantSkin protectingSunscreen agent Good for Oily Skin
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger
Arbutin
Antioxidant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 AntioxidantSkin conditioning Good for Dry Skin
PEG-3 Dimethicone
Hair conditioning, Skin conditioning
Moderate-hazard ingredient.Read moreShow less
EWG 4–6 CIR A Hair conditioningSkin conditioning
Stearic Acid
Fragrance, Sufactant
Potentially comedogenic - can block poresRead moreShow less
EWG 1 CIR A FragranceSufactantEmulsifyingSurfactantsurfactant-cleansing agent is included as a function for the soap form of stearic acid.Emulsion stabilisingMaskingRefatting Bad for Oily SkinFungal-acne trigger
Sorbitan Sesquioleate
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmulsifyingSurfactant Fungal-acne trigger

How to use

How to use

  • 1 Morning only: Apply as the last step of your AM routine, after moisturiser, and reapply every ~2 hours of sun exposure.

General guidance from this product's category and active ingredients — always follow the directions on the package.

Trust & honesty

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

Vitamin C (ascorbic) 5–20%

L-ascorbic acid is usually used at 5–20% (around 10–15% is common). Above ~20% adds little and tends to irritate more; it also needs a low pH to work.

Ascorbyl Glucoside

INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.

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