Cool-Down Hydro Light Sunscreen SPF 50+

Blocks

Cool-Down Hydro Light Sunscreen SPF 50+

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About this product

The Blocks Cool-Down Hydro Light Sunscreen SPF 50+ is a sunscreen. Our analysis of its 55 ingredients (47 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Sunscreen
Ingredients
55
Low-risk
47
Fragrance
Contains fragrance
Origin
South Korea
SPF
50 · blocks 98.0% UVB
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 20/7
Good for dry skin
Glucose Glyceryl Stearate Diisopropyl Sebacate Lauryl Lactate Behenyl Alcohol Sodium Acetylated Hyaluronate Sodium Hyaluronate Crosspolymer Sorbitol Pseudoalteromonas Ferment Extract Caprylyl Glycol Butylene Glycol Sodium Hyaluronate Glycerin Palmitic Acid Hydroxypropyltrimonium Hyaluronate Hydrolyzed Glycosaminoglycans Hydrolyzed Hyaluronic Acid Hyaluronic Acid Dibutyl Adipate Streptococcus Thermophilus Ferment
Caution for dry skin
C20-22 Alkyl Phosphate Sodium Stearoyl Glutamate Sorbitan Olivate Stearic Acid Glycerin Palmitic Acid Silica
Oily/Acne-Prone Skin No data
Sensitive Skin 2/8
Good for sensitive skin
Glycerin Hydroxyacetophenone
Caution for sensitive skin
Dipropylene Glycol Lauryl Lactate Sorbitol Stearic Acid Butylene Glycol Glycerin Palmitic Acid Tromethamine

Ingredients list

55 total
Lower hazard (1) Higher hazard (2)
All55 Skin Conditioning36 Humectant19 Solvent11 Viscosity Controlling10 Hair Conditioning9 Fragrance9 Emollient7 Plasticizer5
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
A
Dibutyl Adipate
(Plasticizer, Skin Conditioning, Emollient, Solvent, Film Forming)
1
Ethylhexyl Triazone
(Uv Absorber, Uv Filter)
Terephthalylidene Dicamphor Sulfonic Acid
(Uv Absorber, Uv Filter)
1
2
A
Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
A
Diisopropyl Sebacate
(Plasticizer, Skin Conditioning, Emollient, Solvent)
1
A
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing)
1
A
Dipropylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Masking, Viscosity Controlling)
2
A
Tromethamine
(Fragrance, Ph Adjuster, Buffering Agent, Masking)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
Sphingomonas Ferment Extract
(Skin Conditioning)
1
Pseudoalteromonas Ferment Extract
(Humectant)
Streptococcus Thermophilus Ferment
(Humectant, Skin Conditioning)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
Hydrolyzed Hyaluronic Acid
(Hair Conditioning, Humectant, Skin Conditioning)
1
A
Hyaluronic Acid
(Skin Conditioning, Viscosity Increasing Agent, Antistatic Agent, Humectant, Moisturising)
2
Diethylamino Hydroxybenzoyl Hexyl Benzoate
(Uv Absorber, Uv Filter)
2
Polysilicone-15
(Uv Absorber, Uv Filter)
1
A
Vinyl Dimethicone
(Viscosity Controlling)
1
A
1,2-Hexanediol
(Solvent)
1
A
Palmitic Acid
(Fragrance, Opacifying, Sufactant, Surfactant Emulsifying Agentsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Palmitic Acid., Emollient)
Bad for Oily Skin
Bad for Oily Skin
Fungal Acne
Fungal Acne Trigger
1
B
Cetearyl Olivate
(Hair Conditioning)
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
Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
(Skin Conditioning, Uv Absorber, Uv Filter)
1
Caprylyl Methicone
(Skin Conditioning)
1
B
Lauryl Lactate
(Fragrance, Skin Conditioning, Emollient)
1
A
Synthetic Fluorphlogopite
(Bulking Agent, Viscosity Increasing Agent, Viscosity Controlling)
1
A
Sorbitan Olivate
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
A
Glyceryl Stearate
(Emollient, Emulsifying)
Fungal Acne
Fungal Acne Trigger
1
B
C20-22 Alkyl Phosphate
(Emulsifying, Surfactant)
1
Hydroxyacetophenone
(Antioxidant)
1
Methylpropanediol
(Solvent)
1
Polyether-1
(Viscosity Increasing Agent, Viscosity Controlling)
1
Sorbitol
(Flavoring Agent, Fragrance, Humectant, Plasticizer, Skin Conditioning)
1
B
Sodium Stearoyl Glutamate
(Hair Conditioning, Skin Conditioning, Surfactant Cleansingagent, Emulsifying)
1
Adenosine
(Skin Conditioning)
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
Cutibacterium Acnes Ferment Filtrate
(Antioxidant, Skin Conditioning Miscellaneous)
Staphylococcus Epidermidis Ferment Filtrate
(Humectant, Skin Conditioning)
Benzyl Glycol
(Solvent)
1
Hydrolyzed Glycosaminoglycans
(Hair Conditioning, 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
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
1
A
Glucose
(Flavoring Agent, Humectant, Skin Conditioning Agent Miscellaneous)
1
Sodium Hyaluronate Crosspolymer
(Humectant, Skin Conditioning)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
1
Hydroxypropyltrimonium Hyaluronate
(Film Forming, Humectant)
1
A
Biotin
(Hair Conditioning, Skin Conditioning, Antiseborrhoeic)
1
Sodium Acetylated Hyaluronate
(Humectant)
1
A
Behenyl Alcohol
(Binding Agent, Emulsion Stabilising, Viscosity Increasing Agent, Binding, Emollient, Viscosity Controlling)
1
C20-22 Alcohols
(Binding Agent, Emulsion Stabilising, Viscosity Increasing Agent, Binding, Viscosity Controlling)
1
A
Disodium EDTA
(Chelating Agent, Viscosity Controlling)
PARFUM
(Fragrance, Perfuming)

My Ingredient Notes

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Key ingredients

Hyaluronic Acid
Hydrates by attracting and holding water.
Chemical UV Filter
Absorbs UV rays to help prevent sun damage.
Antioxidants
Shields skin from free radical damage.
Niacinamide
Strengthens, smooths, and brightens skin.
Exfoliators
Removes dead skin cells to smoothe texture.

Benefits

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

Concerns

Not fungal acne (malassezia) safe
May not suit sensitive skin

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Dibutyl Adipate
Plasticizer, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A PlasticizerSkin conditioningEmollientSolventFilm forming
Ethylhexyl Triazone
Uv absorber, Uv filter
Low-hazard ingredient.Read moreShow less
EWG 1 Uv absorberUv filter
Terephthalylidene Dicamphor Sulfonic Acid
Uv absorber, Uv filter
Limited public safety data.Read moreShow less
EWG N/A Uv absorberUv filter
Silica
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1–2 CIR A AbrasiveAbsorbentAnticaking agentBulking agentOpacifyingViscosity controlling
Diisopropyl Sebacate
Plasticizer, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A PlasticizerSkin conditioningEmollientSolvent
Niacinamide
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningSmoothing
Dipropylene Glycol
Fragrance, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSolventViscosity decreasing agentMaskingViscosity controlling
Tromethamine
Fragrance, Ph adjuster
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A FragrancePh adjusterBuffering agentMasking
Pentylene Glycol
Skin conditioning, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSolvent
Sphingomonas Ferment Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Pseudoalteromonas Ferment Extract
Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 Humectant
Streptococcus Thermophilus Ferment
Humectant, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A HumectantSkin conditioning
Hydrolyzed Hyaluronic Acid
Hair conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningHumectantSkin conditioning
+ 32 more — see the full ingredients list above
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Palmitic Acid
Fragrance, Opacifying
Potentially comedogenic - can block poresRead moreShow less
EWG 1 CIR A FragranceOpacifyingSufactantSurfactant -emulsifying agentsurfactant-cleansing agent is included as a function for the soap form of palmitic acid.Emollient Bad for Oily SkinFungal-acne trigger
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 Olivate
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmulsifyingSurfactant Fungal-acne trigger
Glyceryl Stearate
Emollient, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientEmulsifying Fungal-acne trigger
Panthenol
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningSkin conditioning 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

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.

Niacinamide 2–5% (up to 10%)

Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.

Niacinamide

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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