Shigaisen Yohou Smooth UV Gel SPF 45

Ishizawa Labs

Shigaisen Yohou Smooth UV Gel SPF 45

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About this product

The Ishizawa Labs Shigaisen Yohou Smooth UV Gel SPF 45 is a sunscreen. Our analysis of its 27 ingredients (18 low-risk) rates it Excellent (95/100). Based on its ingredients, it looks well-suited to oily / acne-prone, dry, and sensitive skin.

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Sunscreen
Ingredients
27
Low-risk
18
Fragrance
Fragrance-free
Origin
Japan
SPF
45 · blocks 97.8% UVB

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 7/3
Good for dry skin
Dipotassium Glycyrrhizate Sodium Acetylated Hyaluronate Butylene Glycol Sodium Hyaluronate Hydrolyzed Collagen Scutellaria Baicalensis Root Extract Aloe Barbadensis Leaf Extract
Caution for dry skin
Polyglyceryl-10 Laurate Scutellaria Baicalensis Root Extract Silica
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Scutellaria Baicalensis Root Extract
Sensitive Skin 5/4
Good for sensitive skin
Sodium Bicarbonate Alpha-Arbutin Anthemis Nobilis Flower Extract Scutellaria Baicalensis Root Extract Aloe Barbadensis Leaf Extract
Caution for sensitive skin
Cellulose Gum Anthemis Nobilis Flower Extract Butylene Glycol Phenoxyethanol

Ingredients list

27 total
Lower hazard (1) Higher hazard (6)
All27 Skin Conditioning21 Humectant8 Emulsion Stabilising4 Viscosity Controlling4 Antioxidant4 Fragrance4 Masking3 Skin Protecting3
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
6
Ethylhexyl Methoxycinnamate
(Uv Absorber, Uv Filter)
Bad for Oily Skin
Bad for Oily Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
1
2
A
Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling)
2
Diethylamino Hydroxybenzoyl Hexyl Benzoate
(Uv Absorber, Uv Filter)
1
Orange Roughy Oil
(Skin Conditioning)
1
A
Dipotassium Glycyrrhizate
(Flavoring Agent, Skin Conditioning, Humectant)
1
Alpha-Arbutin
(Antioxidant, Skin Conditioning)
Vitis Vinifera Fruit Extract
(Skin Conditioning)
Salvia Officinalis Extract
(Anti Seborrheic, Antimicrobial, Antioxidant, Astringent, Cleansing, Deodorant, Skin Conditioning, Skin Protecting, Soothing, Tonic)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
Sodium Acetylated Hyaluronate
(Humectant)
1
Scutellaria Baicalensis Root Extract
(Astringent, Humectant, Soothing)
Morus Alba Extract
(Antifoaming, Astringent, Humectant, Skin Conditioning)
1
Anthemis Nobilis Flower Extract
(Masking, Perfuming, Skin Conditioning)
Good for Sensitive Skin
Good for Sensitive Skin
Good for Dry Skin
Good for Dry Skin
Malpighia Emarginata Fruit Extract
(Hair Conditioning, Skin Conditioning)
1
A
Hydrolyzed Collagen
(Hair Conditioning, Nail Conditioning Agent, Skin Conditioning, Antistatic Agent, Emollient, Film Forming, Humectant)
1
3
B
Aloe Barbadensis Leaf Extract
(Emollient, Humectant, Oral Care Agent, Skin Conditioning)
Good for Sensitive Skin
Good for Sensitive Skin
4
5
Silver
(Colorant, Cosmetic Colorant)
Platinum
(Antimicrobial, Antioxidant, Skin Conditioning)
1
A
Cellulose Gum
(Binding Agent, Emulsion Stabilising, Film Forming, Fragrance, Viscosity Increasing Agent, Binding, Masking, Viscosity Controlling)
1
A
Sodium Bicarbonate
(Abrasive, Buffering Agent, Deodorant, Oral Care Agent, Oral Health Care Drug, Phadjuster, Skin Protecting)
1
B
Polyglyceryl-10 Laurate
(Skin Conditioning, Emulsifying, Surfactant)
3
B
Potassium Hydroxide
(Ph Adjuster, Buffering Agent)
1
A
Carbomer
(Emulsion Stabilising, Viscosity Increasing Agent, Gel Forming, Viscosity Controlling)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben

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

Antioxidants
Shields skin from free radical damage.
Hyaluronic Acid
Hydrates by attracting and holding water.
Chemical UV Filter
Absorbs UV rays to help prevent sun damage.
Exfoliators
Removes dead skin cells to smoothe texture.
Vitamin E
Protects skin and soothes irritation.
Arbutin
Gently brightens and evens skin tone.
Show all 6 key ingredients

Benefits

Redness ReducingSoothes visible redness and calms irritation.
HydratingBoosts hydration and relieves dry, tight skin.
Anti-AgingSoftens lines and helps skin look youthful.
Reduces IrritationEases discomfort and supports skin resilience.
Barrier RepairStrengthen and restore your skin's natural barrier.
BrighteningRestores radiance to dull, tired skin.
Dark SpotsFades dark spots for even skin tone.
Good For Oily SkinBalances oil and helps reduce shine.

Concerns

Contains paraben

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Silica
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1–2 CIR A AbrasiveAbsorbentAnticaking agentBulking agentOpacifyingViscosity controlling
Diethylamino Hydroxybenzoyl Hexyl Benzoate
Uv absorber, Uv filter
Low-hazard ingredient.Read moreShow less
EWG 2 Uv absorberUv filter
Orange Roughy Oil
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Dipotassium Glycyrrhizate
Flavoring agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Flavoring agentSkin conditioningHumectant
Alpha-Arbutin
Antioxidant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 AntioxidantSkin conditioning
Vitis Vinifera Fruit Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Salvia Officinalis Extract
Anti seborrheic, Antimicrobial
Limited public safety data.Read moreShow less
EWG N/A Anti seborrheicAntimicrobialAntioxidantAstringentCleansingDeodorantSkin conditioningSkin protectingSoothingTonic
Sodium Acetylated Hyaluronate
Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 Humectant
Scutellaria Baicalensis Root Extract
Astringent, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 AstringentHumectantSoothing
Morus Alba Extract
Antifoaming, Astringent
Limited public safety data.Read moreShow less
EWG N/A AntifoamingAstringentHumectantSkin conditioning
Malpighia Emarginata Fruit Extract
Hair conditioning, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningSkin conditioning
Hydrolyzed Collagen
Hair conditioning, Nail conditioning agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningNail conditioning agentSkin conditioningAntistatic agentEmollientFilm formingHumectant
Platinum
Antimicrobial, Antioxidant
Limited public safety data.Read moreShow less
EWG N/A AntimicrobialAntioxidantSkin conditioning
Cellulose Gum
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingFilm formingFragranceViscosity increasing agentBindingMaskingViscosity controlling
+ 5 more — see the full ingredients list above
Ethylhexyl Methoxycinnamate
Uv absorber, Uv filter
Potentially a skin irritantRead moreShow less
EWG 6 Uv absorberUv filter Bad for Oily SkinBad for Sensitive Skin
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Anthemis Nobilis Flower Extract
Masking, Perfuming
Low-hazard ingredient.Read moreShow less
EWG 1 MaskingPerfumingSkin conditioning Good for Sensitive SkinGood for Dry Skin
Aloe Barbadensis Leaf Extract
Emollient, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 1–3 CIR B EmollientHumectantOral care agentSkin conditioning Good for Sensitive Skin
Silver
Colorant, Cosmetic colorant
Moderate-hazard ingredient.Read moreShow less
EWG 4–5 ColorantCosmetic colorant
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben

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.

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