Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen Review

Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen
3.2
/ 10
Moisturizing
4.0 Humectancy icon Humectancy
2.3 Occlusivity icon Occlusivity
50
SPF icon
SPF
Review

Does Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen Work?

 
According to CreamScan AI's analysis of the ingredient list, here’s what Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen has to offer:
 
✅ Light moisturizing. It has a moisturizing rating of 3.2 out of 10.
✅ Very high sun protection for prolonged sun exposure, such as spending the day at the beach, hiking, or outdoor sports.

  

Key Benefits of Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen

 
These are the key benefits you can expect from using Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen:
 

🔵 Lightweight Moisturizer Suitable for Combination and Oily Skin

According to CreamScan analysis, Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen is lightly moisturizing, with a moisturizing rating of 3.2 out of 10.

Is it more humectant or occlusive? Rather humectant. It has a low occlusivity of 2.3 out of 10 and a moderate humectancy of 4.0 out of 10, primarily due to Glycerin (est. ≈1.3%), Butylene Glycol (est. ≈0.3%) and Sodium Hyaluronate (est. ≈0.3%).

This type of moisturizer is suitable for people with oily and combination skin who want essential hydration in a relatively lightweight, non-greasy formula. It combines a substantial amount of humectants with a limited amount of occlusive ingredients to enhance moisturizing efficacy without feeling too heavy.

💧 A Humectant Add-on for Any Skincare Routine

But it’s not limited to combination and oily skin - since it contains a moderate amount of humectants, such a humectant add-on will also positively contribute to the moisturizing efficacy of any skincare routine when used as a step before applying the main moisturizer.

Please refer to the Ratings section below for details of the moisturizing rating calculation.

☀️☀️☀️ Very High Sun Protection for Prolonged Sun Exposure, All Skin Types, and High-risk Conditions

With an SPF of 50, Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen provides very high sun protection, suitable for intense sun exposure in tropical climates, beach vacations, or high-altitude environments.

This level of SPF blocks 98% or more of UVB rays, offering the highest level of defense against sunburn. Broad-spectrum formulations also provide strong protection against UVA rays, which are responsible for skin aging, pigmentation, and DNA damage.

❗️For optimal protection, choose products labeled broad-spectrum to ensure defense against both UVA rays, which contribute to skin aging and pigmentation, and UVB rays that cause sunburn.

This level of SPF is ideal for all skin types, particularly fair, sensitive, or post-treatment skin (e.g., after laser or chemical procedures). It is also highly recommended for individuals at greater risk of skin cancer.

For extended outdoor activities or water exposure, choose a water-resistant formula and reapply every two hours for maximum effectiveness.

📌 Please note that this is not a complete list of benefits. We are in the process of enhancing our AI model to incorporate anti-pigmentation, exfoliation and anti-acne ratings.

Things to Be Aware Of: Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen

 
CreamScan AI identified a few things to consider before adding Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen to your skincare routine:
 

⚠️ Questionable anti-wrinkle efficacy

If one of your main reasons for choosing Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen is its potential anti-aging effects, please note that, according to CreamScan analysis, it currently has a zero anti-wrinkle rating.

It contains some ingredients often marketed as effective in reducing wrinkles, specifically Adenosine, Palmitoyl Oligopeptide, and Palmitoyl Tetrapeptide-7. However, the studies supporting the anti-wrinkle claims of these ingredients provide insufficient evidence of efficacy according to CreamScan Research Evaluation Standards. 

While this does not categorically rule out the possibility that these ingredients may reduce wrinkles, their efficacy is not supported by convincing, vehicle-controlled, double-blind clinical studies - at least none that were available to the CreamScan team at the time of publication.

Therefore, these ingredients do not generate the anti-wrinkle rating.

📌 Moisturizers, when used regularly, are proven to prevent wrinkle formation and even reduce existing wrinkles. Therefore, this product, like any other moisturizer, can deliver some anti-wrinkle effects through its moisturizing action.

Please refer to the Ratings section below for details of the anti-wrinkle rating calculation.

Pros & Cons of Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen

 
Here’s an overview of the pros and cons of Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen to help you decide if it’s the right choice for your skincare routine:
 

🟩 Pros:

✅ When used alone: Provides moderate humectant moisturizing suitable for combination and oily skin
✅ As part of a routine: A humectant moisturizing enhancement, beneficial for any skin type
✅ Lightweight texture
✅ Provides very high sun protection, ideal for intense sun exposure in tropical climates, high-altitude environments, and beach vacations, suitable for all skin types
 

⭕ Cons: 

⚠️ Questionable anti-wrinkle efficacy
   

Summary: Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen

 
Based on the ingredient list analysis, CreamScan AI suggests that Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen
, when used alone, delivers  lightweight, moderate humectant moisturizing, suitable for combination and oily skin. As part of a moisturizing routine, it provides a subtle humectant enhancement, beneficial for all skin types.
 
With an SPF of 50, Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen delivers very high sun protection, perfect for intense sun exposure in tropical climates, high-altitude settings, and beach vacations, and suitable for all skin types.
 
That said, there are some things about Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen worth noting.
 
If one of your main reasons for considering Kate Somerville Daily Deflector Waterlight Broad Spectrum SPF 50+ PA+++ Anti-Aging Sunscreen is its potential anti-aging effects, please note that, according to CreamScan analysis, its anti-wrinkle efficacy is questionable. None of the ingredients in this product provide substantial evidence of their anti-wrinkle efficacy according to CreamScan Research Evaluation Standards.
 
❗️ Fact check. At CreamScan, we are committed to accuracy and fairness. If you spot any errors or something that doesn’t seem right, please click here to let us know. We regularly update the ingredient lists and monitor the latest research on ingredient efficacy to ensure that our information remains as complete and precise as possible.

 

Ingredients

Est. % Ingredient Origin Functions
55
12.6
8.3
4
3
2.5
2
1.5
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Est. %
Water
Function:
Origin:
Zinc Oxide
Function:
Origin:
Titanium Dioxide (CI 77891)
Function:
Origin:
Isododecane
Function:
Origin:
Dimethicone
Function:
Origin:
Butyloctyl Salicylate
Function:
Origin:
C12-15 Alkyl Benzoate
Function:
Origin:
Coco-Caprylate/Caprate
Function:
Origin:
Glycerin
Function:
Origin:
Caprylyl Methicone
Function:
Origin:
Dicaprylyl Ether
Function:
Origin:
Nylon-6/12
Function:
Origin:
Dicaprylyl Carbonate
Function:
Origin:
Butylene Glycol
Function:
Origin:
Cetyl PEG/PPG-10/1 Dimethicone
Function:
Origin:
Coconut Alkanes
Function:
Origin:
Methylcellulose
Function:
Origin:
Stearic Acid
Function:
Origin:
Polyhydroxystearic Acid
Function:
Origin:
Sodium Hyaluronate
Function:
Origin:
Tocopheryl Acetate
Function:
Origin:
Adenosine
Function:
Origin:
Lentinus Edodes Extract
Function:
Origin:
Trehalose
Function:
Origin:
Triacetin
Function:
Origin:
Tocopherol
Function:
Origin:
Palmitoyl Oligopeptide
Function:
Origin:
Palmitoyl Tetrapeptide-7
Function:
Origin:
Urea
Function:
Origin:
Sodium PCA
Function:
Origin:
Fragrance
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:
Polysorbate 20
Function:
Origin:
Polyquaternium-51
Function:
Origin:
Carbomer
Function:
Origin:
Pentylene Glycol
Function:
Origin:
Sodium Lactate
Function:
Origin:
Disodium EDTA
Function:
Origin:
Benzoic Acid
Function:
Origin:
Potassium Sorbate
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Alumina
Function:
Origin:

Ratings

All humectants
4.0
1.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
4.6
3.0
1.0
0.3
0.3
Benchmark
20
Moisturizing rating
3.2
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 4.0 10
4.0
1.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Occlusivity All occlusives 4.6 20
2.3
3.0
1.0
0.3
0.3
Moisturizing rating
3.2
Ingredient Est. % Benchmark Humectancy
1.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All humectants 4.0 10
4
All humectants
4.0
1.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
3
1
0.3
0.3
All occlusives 4.6 20
2.3
All occlusives
4.6
3.0
1.0
0.3
0.3
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
n/a
- 0.3 -
n/a
- 0.3 -
n/a
- 0.3 -
Total
0
Adenosine
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Palmitoyl Oligopeptide
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Palmitoyl Tetrapeptide-7
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
0
Ingredient Est. % Benchmark
Rich in Antioxidants
0.3
0.3
0.3
All antioxidants 0.9 3 No
All antioxidants
0.9
Sodium Hyaluronate
0.3
Tocopheryl Acetate
0.3
Tocopherol
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
None
All soothing 0 5 No
All soothing
0
None
Benchmark
5

Ingredients explained

Water
Est. %55
Function
Origin
WaterThe most used ingredient in skincare. Its concentration defines the product texture: rich creams may have about 50% of water while a light jelly about 90%. Water doesn’t moisturize the skin by itself and is used in skincare as a solvent for other ingredients.
Zinc Oxide
Est. %12.6
Function
Origin
Zinc OxideA white mineral powder mainly used in skincare as a physical sunscreen. It protects against UVA light that leads to visible signs of aging, including wrinkles and fine lines. Zinc oxide can also be used as a colorant to enhance the whiteness of a product.
Titanium Dioxide (CI 77891)
Est. %8.3
Function
Origin
Titanium Dioxide (CI 77891)One of two the most commonly used mineral sunscreens. It can absorb UV light, including UVB – which causes burning, tanning, and even skin cancer. Also used as a colorant, titanium dioxide gives a product a bright white color.
Isododecane
Est. %4
Function
Origin
IsododecaneAn emollient derived from petroleum with high spreadability. It is often used as a replacement for oils and silicones because it leaves no residue behind on the skin. When a product is labeled as “oil-free” it may contain isododecane instead of heavier oils.
Dimethicone
Est. %3
Function
Origin
DimethiconeThe most common silicone in skincare. It forms a silky, smooth film on the skin’s surface and can help to prevent water loss. It also aids in wound healing and can treat and soften scars. Dimethicone is considered to be very safe for use.
Butyloctyl Salicylate
Est. %2.5
Function
Origin
Butyloctyl SalicylateA synthetic emollient and solvent. It is primarily used as a carrier oil to disperse minerals in, including pigments and sunscreen minerals. It can also absorb UV light, thus boosting the SPF of sunscreen products.
C12-15 Alkyl Benzoate
Est. %2
Function
Origin
C12-15 Alkyl BenzoateA synthetic emollient ester. It works to improve the appearance of the skin by filling in the microcracks on the surface, thereby making the skin appear softer and smoother. It imparts a lightweight, velvety feel.
Coco-Caprylate/Caprate
Est. %1.5
Function
Origin
Coco-Caprylate/CaprateA naturally-derived emollient ester. It is a blend of caprylates and caprates and, relative to other emollients, is lightweight and dry on the skin. As a result, coco-caprylate/caprate serves as a natural alternative to volatile silicones.
Glycerin
Est. %1.3
Function
Origin
Glycerin

The most popular moisturizing ingredient in the world. It is a powerful humectant – cheap yet very effective.

Caprylyl Methicone
Est. %1
Function
Origin
Caprylyl MethiconeA liquid silicone with occlusive moisturizing properties. Being compatible with natural oils is a challenge for most silicones, but caprylyl methicone plays well with all types of oils.
Dicaprylyl Ether
Est. %0.3
Function
Origin
Dicaprylyl EtherA fast-spreading and very lightweight emollient. It is used to reduce the tack and oiliness of oil-based formulas and gives the skin a dry, silky after-feel. It is also a great solvent.
Nylon-6/12
Est. %0.3
Function
Origin
Nylon-6/12
Dicaprylyl Carbonate
Est. %0.3
Function
Origin
Dicaprylyl CarbonateA very fast-spreading emollient that gives a product an incredibly lightweight feel. Dicaprylyl carbonate works well as a solvent for suspending insoluble solids such as mineral sunscreens or iron oxide pigments.
Butylene Glycol
Est. %0.3
Function
Origin
Butylene Glycol

A clear, colorless liquid humectant that draws moisture to the skin. The humectancy of butylene glycol, owed to its two hydroxyl groups, is quite considerable, although not as powerful as glycerin, which contains three hydroxyl groups.

Cetyl PEG/PPG-10/1 Dimethicone
Est. %0.3
Function
Origin
Cetyl PEG/PPG-10/1 DimethiconeA silicone-based powerful emulsifier that helps to create lightweight and pleasant feeling lotions and creams.
Coconut Alkanes
Est. %0.3
Function
Origin
Coconut AlkanesAn occlusive moisturizing and emollient mixture that is similar to paraffin. It is produced from coconut oil and can allegedly form a soft, non-greasy film on the skin’s surface. It can be used as an alternative to silicones.
Methylcellulose
Est. %0.3
Function
Origin
Methylcellulose
Stearic Acid
Est. %0.3
Function
Origin
Stearic AcidA saturated fatty acid found in vegetable butter and animal fats. It is an occlusive moisturizing and emollient ingredient and also helps to maintain the barrier function of the skin.
Polyhydroxystearic Acid
Est. %0.3
Function
Origin
Polyhydroxystearic AcidA soft and malleable amber wax naturally derived from vegetable sources. It allows minerals to be very finely dispersed, which can improve SPF, decrease the white cast in sunscreens, and increase the color expression in pigmented products.
Sodium Hyaluronate
Est. %0.3
Function
Origin
Sodium Hyaluronate

A sodium salt of famous hyaluronic acid. A potent humectant that hydrates the skin, supports collagen function, and fills out small wrinkles. Sodium hyaluronate also offers soothing and antioxidant properties.

Tocopheryl Acetate
Est. %0.3
Function
Origin
Tocopheryl Acetate

An antioxidant derivative of tocopherol (vitamin E). It helps to protect cells from free radicals and UV damage through the conversion to active vitamin E in the skin. It is more stable than tocopherol.

Adenosine
Est. %0.3
Function
Origin
Adenosine

A key molecule responsible for energy transportation, signaling, and enzyme activity. Adenosine is a popular anti-wrinkle ingredient, however, the key study about its anti-wrinkle efficacy (1) does not meet CreamScan Research Evaluation Standards as it is not double-blind.

Lentinus Edodes Extract
Est. %0.3
Function
Origin
Lentinus Edodes Extract
Trehalose
Est. %0.3
Function
Origin
TrehaloseA sweet-tasting saccharide that can be found in various yeasts and fungi and that is manufactured from starch for cosmetic purposes. It is one of the most popular sugars in skincare and is mainly used for its humectant properties.
Triacetin
Est. %0.3
Function
Origin
Triacetin
Tocopherol
Est. %0.3
Function
Origin
Tocopherol

Simply another name for vitamin E. Tocopherol is a fantastic ingredient and especially beneficial for dry and inflamed skin. It has occlusive moisturizing, emollient, antioxidant, and photoprotective properties.

Palmitoyl Oligopeptide
Est. %0.3
Function
Origin
Palmitoyl Oligopeptide

This is an old INCI name that can refer to several other peptides. They are all short fragments of collagen or elastin and function as signal molecules, telling the skin to repair and restructure the dermis, resulting in anti-wrinkle activity.

Palmitoyl Tetrapeptide-7
Est. %0.3
Function
Origin
Palmitoyl Tetrapeptide-7

A synthetic peptide that mimics the activity of immunoglobulin G and signals to the skin to stop the inflammation. It has been shown in studies to reduce wrinkles and enhance collagen content.

Urea
Est. %0.3
Function
Origin
UreaUrea can be found in urine, skin, and other tissues as a degradation product of proteins. In concentrations below 5%, urea is humectant moisturizing. At concentrations above 10% it is keratolytic, that helps to break away old, flaking, and cracked skin.
Sodium PCA
Est. %0.3
Function
Origin
Sodium PCAOne of the most important parts of the skin's Natural Moisturizing Factor, a mixture of various compounds that keeps the skin’s surface well hydrated. Sodium PCA is used in skincare for its fantastic humectant properties.
Fragrance
Est. %0.3
Function
Origin
FragranceUnder trade secret law, manufacturers have the right not to disclose what exactly went into the fragrance and use the unspecific word Fragrance or Parfum instead. Many fragrances are highly allergenic.
Ethylhexylglycerin
Est. %0.3
Function
Origin
EthylhexylglycerinA preservative booster derived from glycerin. It is commonly paired with other preservatives to improve their efficacy. Ethylhexylglycerin is also a humectant due to its chemical base of glycerin.
Polysorbate 20
Est. %0.3
Function
Origin
Polysorbate 20A viscous, amber-colored liquid that functions as a solubilizer to disperse small amounts of oil into a large water phase. Polysorbate 20 is frequently used to solubilize fragrance oils into water-based emulsions.
Polyquaternium-51
Est. %0.3
Function
Origin
Polyquaternium-51A biocompatible phospholipid copolymer that is designed to mimic the lipid-based cell membrane found in human skin. Its main function is as a humectant moisturizer.
Carbomer
Est. %0.3
Function
Origin
CarbomerA synthetic ingredient with the ability to gel water. When used in emulsions, such as lotions and creams, carbomer can also act as an emulsion stabilizer.
Pentylene Glycol
Est. %0.3
Function
Origin
Pentylene Glycol

A naturally or synthetically derived preservative that exhibits effective antifungal and antibacterial traits. It also acts as a booster for more traditional preservatives. Pentylene glycol can also serve as a moisturizing humectant and solvent.

Sodium Lactate
Est. %0.3
Function
Origin
Sodium LactateA sodium salt of lactic acid. Its main function is as a humectant but it can also serve as a pH adjuster. Additionally, sodium lactate can also be used as a chemical exfoliant due to its close chemical relation to lactic acid.
Disodium EDTA
Est. %0.3
Function
Origin
Disodium EDTAA synthetic chelator that helps to maintain the look and smell of a product by 'locking up' troublesome metal ions.
Benzoic Acid
Est. %0.3
Function
Origin
Benzoic AcidA preservative effective against fungi, yeast, and some bacteria. It is commonly paired with phenoxyethanol to create a broad spectrum preservation system. Benzoic acid can also serve as a pH adjuster, fragrance, and bulking agent.
Potassium Sorbate
Est. %0.3
Function
Origin
Potassium SorbateA preservative widely used in food and personal care products, available from natural sources or synthetically produced. Potassium sorbate works by inhibiting the growth of yeasts, molds, and some bacteria.
Phenoxyethanol
Est. %0.3
Function
Origin
PhenoxyethanolThe most frequently used preservative in skincare. It is a clear, oil-like liquid synthetic substance that protects products from harmful bacteria and yeast, whilst still leaving skin microflora unharmed. It is confirmed by research to be harmless.
Alumina
Est. %0.3
Function
Origin
AluminaA mineral derived from the metal ore known as aluminum. It is commonly used as an abrasive and also acts as a thickening viscosity controlling agent (and thus as a bulking agent). Alumina is also a great opacifier.