Kate Somerville HydraKate Illuminating SPF 50+ Drops

Name: Kate Somerville - HydraKate Illuminating SPF 50+ Drops
Brand: Kate Somerville

USD46.00

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Efficacy90/100

medium

Works for:

based on ingredients and %

Sun protection
Evens skin tone
Anti-aging
Moisturizing

Can it cause trouble?

Irritation risk: medium
Comedogenic risk ingredients: 0

Key actives

Tocopherol0.3% - 0.7%Zinc oxide24.5Caprylic/capric triglyceride3.1% - 4.7%

See all ingredients

USD46.00

Price as of May 17, 2026.

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Appears in 2 routines

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Product Summary

We believe that "Kate Somerville - HydraKate Illuminating SPF 50+ Drops" can provide reliable sun protection based on the ingredients listed. It can protect from both UVA and UVB rays. This is great news because not all sunscreens with SPF ratings give UVA protection. (UVA rays do not cause sunburn, but still damage our skin and lead to early aging).

Because it includes good moisturizing ingredients, it can also work as a hydrating day cream. This product prevents early signs of aging by protecting against sun damage (all broad spectrum sunscreens do that).

Sunscreen filters

It is a mineral sunscreen. It uses zinc oxide for sun protection. Zinc oxide almost never irritates the skin or stings eyes, but it can leave a white cast.

Irritation risk

This product contains some common irritants, including those without a benefit for the skin. We assess the overall irritancy of this sunscreen to be medium. For a detailed overview of all potential irritants: click here

You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.

About the brand

According to Cruelty-Free Kitty "Kate Somerville" is cruelty free, but its parent company is not.

Anti-aging

This product can help prevent early signs of skin aging because it offers a good level of broad spectrum sun protection. Sun damage is the main cause of premature skin aging, and protecting your skin from the sun is the best anti-aging strategy.

Tocopherol0.3% - 0.7%

Irritation risk:Concentration:Insufficient!

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

Evens skin tone

This product offers broad spectrum sun protection. It means that it can prevent hyperpigmentation and help keep the skin tone even (sun damage is the main factor causing age spots, darkening of post-acne marks and other discolorations).

Sun protection

This product offers a good level of protection against both UVB and UVA rays.

It is a mineral sunscreen. In other words, it contains non-organic UV filters. It will probably not sting your eyes but might leave a white cast.

This product can be considered "reef safe" because it does not contain the UV filters (oxybenzone and octinoxate) that can be harmful to coral reefs when present in the water in high concentrations.

Zinc oxide24.5%

Irritation risk:Concentration:Effectiveness:HIGH

A broad spectrum sunblock (protects from both UVA and UVB rays). Is suitable for most sensitive skins. In small concentrations, can be used as a colorant

Moisturizing

What does the product description say?

Hydra Kate Illuminating SPF 50+ Drops

Source: From product name

This product can help soften the skin and reduce its moisture loss with emollients and occlusives: caprylic/capric triglyceride.

Keep in mind that this product does not contain effective ingredients to attract water to the upper layer of the skin. This is why an additional product with humectants like glycerin or hyaluronic acid can be helpful (apply it before this product for the best results).

Caprylic/capric triglyceride3.1% - 4.7%

Irritation risk:Concentration:Effectiveness:HIGH

A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin

Ectoin1.1% - 1.7%

Irritation risk:Concentration:Effectiveness:HIGH

Softens the upper layer of the skin and can support skin barrier function

Tocopherol0.3% - 0.7%

Irritation risk:Concentration:Insufficient!

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

Lecithin0.5% - 1.2%

Irritation risk:Concentration:Insufficient!

Used mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin

Key Actives

Tocopherol0.3% - 0.7%

Irritation risk:

Works for:Anti-oxidation, Anti-inflammatory, Anti-aging, Moisturizing

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

Zinc oxide24.5%

Irritation risk:

Works for:Sun protection

A broad spectrum sunblock (protects from both UVA and UVB rays). Is suitable for most sensitive skins. In small concentrations, can be used as a colorant

Caprylic/capric triglyceride3.1% - 4.7%

Irritation risk:

Works for:Moisturizing

A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin

Ectoin1.1% - 1.7%

Irritation risk:

Works for:Moisturizing

Softens the upper layer of the skin and can support skin barrier function

Potential irritants

Parfum0.4% - 0.9%

Irritation risk:

An aromatic blend of unspecified and possibly irritating ingredients

Citrus aurantium dulcis peel oil0.4% - 0.9%

Irritation risk:

An essentil oil from orange peel. Potential allergen and can be irritating

Ethyl macadamiate3.6% - 5.3%

Irritation risk:

Helps water and oil mix together

Caprylic/capric triglyceride3.1% - 4.7%

Irritation risk:

A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin

Polyhydroxystearic acid2.4% - 3.6%

Irritation risk:

Used to create a thicker product consistency and stabilize the formulation

Polyglyceryl-4 diisostearate/polyhydroxystearate/sebacate1.7% - 2.5%

Irritation risk:

Helps water and oil mix together

Polyglyceryl-3 polyricinoleate1.4% - 2.1%

Irritation risk:

Helps oil and water mix together

Trisodium ethylenediamine disuccinate0.45% - 1.05%

Irritation risk:

Used to improve stability of the formulation

Triethyl citrate0.2% - 0.8%

Irritation risk:

Used as a fragrance. Rarely causes irritation

Ethylhexylglycerin0.15% - 0.55%

Irritation risk:

A preservative

Comedogenic ingredients

We couldn't find any comedogenic ingredients in this product

All ingredients

Zinc oxide24.5%

Irritation risk:

A broad spectrum sunblock (protects from both UVA and UVB rays). Is suitable for most sensitive skins. In small concentrations, can be used as a colorant

C13-15 alkane24% - 36%

Irritation risk:

Helps dissolve other ingredients in the formula

Water8.4% - 12.6%

Irritation risk:

Plain old water

Ethyl macadamiate3.6% - 5.3%

Irritation risk:

Helps water and oil mix together

Caprylic/capric triglyceride3.1% - 4.7%

Irritation risk:

A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin

Polyhydroxystearic acid2.4% - 3.6%

Irritation risk:

Used to create a thicker product consistency and stabilize the formulation

Propanediol2% - 3%

Irritation risk:

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

Polyglyceryl-4 diisostearate/polyhydroxystearate/sebacate1.7% - 2.5%

Irritation risk:

Helps water and oil mix together

Polyglyceryl-3 polyricinoleate1.4% - 2.1%

Irritation risk:

Helps oil and water mix together

Ectoin1.1% - 1.7%

Irritation risk:

Softens the upper layer of the skin and can support skin barrier function

Hydroxyectoin0.95% - 1.45%

Irritation risk:

Isostearic acid0.8% - 1.2%

Irritation risk:

Used to create a nice product texture

Lecithin0.5% - 1.2%

Irritation risk:

Used mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin

Trisodium ethylenediamine disuccinate0.45% - 1.05%

Irritation risk:

Used to improve stability of the formulation

Quaternium-90 bentonite0.45% - 1%

Irritation risk:

Parfum0.4% - 0.9%

Irritation risk:

An aromatic blend of unspecified and possibly irritating ingredients

Citrus aurantium dulcis peel oil0.4% - 0.9%

Irritation risk:

An essentil oil from orange peel. Potential allergen and can be irritating

Triethyl citrate0.2% - 0.8%

Irritation risk:

Used as a fragrance. Rarely causes irritation

Tocopherol0.3% - 0.7%

Irritation risk:

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

Malic acid0.2% - 0.75%

Irritation risk:

Helps adjust the product pH

Stearyl triethoxysilane0.15% - 0.65%

Irritation risk:

Sodium chloride0.15% - 0.65%

Irritation risk:

Used to stabilize mixtures of oil and water, and create thicker, gel-like product textures

Ethylhexylglycerin0.15% - 0.55%

Irritation risk:

A preservative

Phenoxyethanol0.1% - 0.45%

Irritation risk:

A preservative. It helps prevent bacterial growth in cosmetic products

Unknown

Irritation risk:

The ingredient is not recognized

Potassium oxide0.1% - 0.4%

Irritation risk:

Ci 774910.1% - 0.35%

Irritation risk:

A red colorant made of iron oxide. Typically is not irritating

Unknown

Irritation risk:

The ingredient is not recognized

Potassium oxide0.1% - 0.35%

Irritation risk:

Ci 774920.05% - 0.25%

Irritation risk:

A colorant. Usually well-tolerated

Unknown

Irritation risk:

The ingredient is not recognized

Potassium oxide0.05% - 0.2%

Irritation risk:

Ci 774990.05% - 0.1%

Irritation risk:

An iron oxide. Used as a colorant. Is usually well tolerated

Ingredient list view

Zinc oxide, C13-15 alkane, Water, Ethyl macadamiate, Caprylic/capric triglyceride, Polyhydroxystearic acid, Propanediol, Polyglyceryl-4 diisostearate/polyhydroxystearate/sebacate, Polyglyceryl-3 polyricinoleate, Ectoin, Hydroxyectoin, Isostearic acid, Lecithin, Trisodium ethylenediamine disuccinate, Quaternium-90 bentonite, Parfum, Citrus aurantium dulcis peel oil, Triethyl citrate, Tocopherol, Malic acid, Stearyl triethoxysilane, Sodium chloride, Ethylhexylglycerin, Phenoxyethanol, Unknown, Potassium oxide, Ci 77491, Unknown, Potassium oxide, Ci 77492, Unknown, Potassium oxide, Ci 77499

USD46.00

Amazon US Lowest price

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Kate Somerville HydraKate Illuminating SPF 50+ Drops

Works for:

Can it cause trouble?

Key actives

Product Summary

Sunscreen filters

Irritation risk

About the brand

What can the product work for?

Works for

Anti-aging

Evens skin tone

Sun protection

Moisturizing

What does the product description say?

Honesty Check

How honest is this product?

Buy Now

Can it cause trouble?

Potential irritants

Comedogenic ingredients

User Reviews

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Key Actives

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