Circadia Circa-Shield Mineral Sunscreen SPF 30 Review

Circadia Circa-Shield Mineral Sunscreen SPF 30
3.8
/ 10
Moisturizing
0.3 Humectancy icon Humectancy
7.2 Occlusivity icon Occlusivity
Rich
in Antioxidants
30
SPF icon
SPF
Review

Does Circadia Circa-Shield Mineral Sunscreen SPF 30 Work?

 
According to CreamScan AI's analysis of the ingredient list, here’s what Circadia Circa-Shield Mineral Sunscreen SPF 30 has to offer:
 
✅ Light moisturizing. It has a moisturizing rating of 3.8 out of 10.
✅ Antioxidant protection
✅ Moderate to high sun protection for daily outdoor activities.

  

Key Benefits of Circadia Circa-Shield Mineral Sunscreen SPF 30

 
These are the key benefits you can expect from using Circadia Circa-Shield Mineral Sunscreen SPF 30:
 

🔵🔵 Moisturizer with the Right Occlusivity for Normal to Dry Skin

According to CreamScan analysis, Circadia Circa-Shield Mineral Sunscreen SPF 30 is lightly moisturizing, with a moisturizing rating of 3.8 out of 10.

Is it more humectant or occlusive? Significantly more occlusive. It has a low Humectancy of 0.3 out of 10 and a high Occlusivity of 7.2 out of 10, primarily due to the high content of Olea Europaea (Olive) Fruit Oil (est. ≈11.0%).

This type of product, when used as a standalone moisturizer, may provide a significant level of occlusive hydration that is adequate for normal to dry skin.

The occlusive profile of Circadia Circa-Shield Mineral Sunscreen SPF 30 suggests a texture that is rich and creamy but not overly thick, offering the potential to absorb into the skin without leaving a greasy afterfeel in most cases.

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

🍀 Rich in Skin-Protecting Antioxidants

We estimate that Circadia Circa-Shield Mineral Sunscreen SPF 30 is rich (> 3%) in antioxidants, specifically Olea Europaea (Olive) Fruit Oil (est. ≈11.0%).

A key benefit of antioxidants is their ability to reduce oxidative stress caused by free radicals and therefore prevent accelerated skin aging. Studies also show that antioxidants can protect against environmental damage such as UV radiation and pollution, and help reduce inflammation and skin redness.

☀️☀️ Moderate to High Sun Protection for Daily Outdoor Activities

With an SPF of 30, Circadia Circa-Shield Mineral Sunscreen SPF 30 provides moderate to high sun protection, making it suitable for daily use during moderate sun exposure, such as commuting or light outdoor activities.

This level of SPF offers excellent defense against UVB rays, blocking up to 97% of harmful radiation. When labeled as broad-spectrum, these products also protect against UVA rays, which are responsible for skin aging and hyperpigmentation.

📌 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 works well for skin types mildly prone to sunburn. It is particularly suitable for low-to-moderate UV index environments and non-tropical climates. However, it is not recommended for prolonged outdoor exposure or intense UV conditions. Reapplication every two hours is essential to maintain 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: Circadia Circa-Shield Mineral Sunscreen SPF 30

 
CreamScan AI identified a few things to consider before adding Circadia Circa-Shield Mineral Sunscreen SPF 30 to your skincare routine:
 

⚠️ Needs to Be Paired with Extra Humectants for Optimal Moisturizing Efficacy

An ideal moisturizer for any skin type should balance the right level of occlusivity (depending on skin type) with a significant amount of humectants, while Circadia Circa-Shield Mineral Sunscreen SPF 30 contains a low level of humectants.

People with normal to dry skin would definitely benefit from adding more humectants to their moisturizing routine beyond what this product offers. If this is your only moisturizer, it may be worth including a humectant-rich product, such as a serum, in your skincare routine.

⚠️ Questionable anti-wrinkle efficacy

If one of your main reasons for choosing Circadia Circa-Shield Mineral Sunscreen SPF 30 is its potential anti-aging effects, please note that, according to CreamScan analysis, it currently has a zero anti-wrinkle rating.

It contains Camellia Sinensis Leaf Extract and Fucus Vesiculosus Extract, two ingredients often marketed as effective in reducing wrinkles. 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 Circadia Circa-Shield Mineral Sunscreen SPF 30

 
Here’s an overview of the pros and cons of Circadia Circa-Shield Mineral Sunscreen SPF 30 to help you decide if it’s the right choice for your skincare routine:
 

🟩 Pros:

Provides the right level of occlusivity to moisturize normal to dry skin
Rich and creamy texture without being overly thick
✅ Rich in antioxidants that combat oxidative stress associated with accelerated skin aging and defend against environmental damage
Provides moderate to high sun protection, suitable for light outdoor activities in non-tropical climates
 

⭕ Cons: 

⚠️ Only if used as a standalone moisturizer - needs to be paired with extra humectants for optimal moisturizing efficacy
⚠️ Questionable anti-wrinkle efficacy
   

Summary: Circadia Circa-Shield Mineral Sunscreen SPF 30

 
Based on the ingredient list analysis, CreamScan AI suggests that Circadia Circa-Shield Mineral Sunscreen SPF 30
, as a moisturizer, provides an adequate level of occlusivity for normal to dry skin, delivered in a rich yet not overly thick formula.
 
With its high antioxidant content, Circadia Circa-Shield Mineral Sunscreen SPF 30 helps protect against free radical damage and offers multiple benefits for all skin types, including preventing premature aging, defending against environmental damage, and calming inflammation.
 
With an SPF of 30, Circadia Circa-Shield Mineral Sunscreen SPF 30 offers moderate to high sun protection, appropriate for light outdoor activities in non-tropical climates.
 
That said, there are some things about Circadia Circa-Shield Mineral Sunscreen SPF 30 worth noting.
 
If you use this product as your only moisturizer in a routine, please note that it contains only a small amount of humectants. Regardless of your skin type, adding extra humectants can enhance optimal moisturizing efficacy. Therefore, it may be worth pairing Circadia Circa-Shield Mineral Sunscreen SPF 30 with a humectant-rich product, such as a serum, in your skincare routine.
 
If one of your main reasons for considering Circadia Circa-Shield Mineral Sunscreen SPF 30 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. The information provided here is for informational purposes only and does not substitute professional advice. We do not guarantee the efficacy or safety of any product, as individual results may vary.

 

Ingredients

Est. % Ingredient Origin Functions
40
22
11
6
4
3
2
1.5
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
Est. %
C14-22 Alkane
Function:
Origin:
Zinc Oxide
Function:
Origin:
Olea Europaea (Olive) Fruit Oil
Function:
Origin:
Sorbitan Olivate
Function:
Origin:
Diisopropyl Adipate
Function:
Origin:
C9-12 Alkane
Function:
Origin:
Silica
Function:
Origin:
Oryza Sativa (Rice) Bran Wax
Function:
Origin:
Vegetable Oil
Function:
Origin:
Simmondsia Chinensis (Jojoba) Seed Oil
Function:
Origin:
Curcuma Longa (Turmeric) Root Extract
Function:
Origin:
Saccharomyces Ferment
Function:
Origin:
Polyglyceryl-6 Olivate
Function:
Origin:
Triethoxycaprylylsilane
Function:
Origin:
Coco-Caprylate/Caprate
Function:
Origin:
Glycine Soja (Soybean) Oil
Function:
Origin:
Polyhydroxystearic Acid
Function:
Origin:
Triethyl Citrate
Function:
Origin:
Lauroyl Lysine
Function:
Origin:
Bis(Cyano Butylacetate) Anthracenediylidene
Function:
Origin:
Polyglyceryl-3 Diisostearate
Function:
Origin:
Oryza Sativa (Rice) Germ Extract
Function:
Origin:
Oryza Sativa (Rice) Extract
Function:
Origin:
Caprylic/Capric Triglyceride
Function:
Origin:
Camellia Sinensis Leaf Extract
Function:
Origin:
Vanilla Planifolia Fruit Extract
Function:
Origin:
Linalyl Acetate
Function:
Origin:
Fucus Vesiculosus Extract
Function:
Origin:
Salvia Officinalis (Sage) Flower/Leaf/Stem Extract
Function:
Origin:
Rosmarinus Officinalis (Rosemary) Leaf Extract
Function:
Origin:
Lavandula Angustifolia (Lavender) Flower/Leaf/Stem Extract
Function:
Origin:
Salvia Triloba Leaf Extract
Function:
Origin:
Jasminum Officinale (Jasmine) Flower/Leaf Extract
Function:
Origin:
Rosa Damascena Flower Extract
Function:
Origin:
Linalool
Function:
Origin:

Ratings

All humectants
0.3
0.3
Benchmark
10
All occlusives
14.4
11.0
1.5
1.0
0.3
0.3
0.3
Benchmark
20
Moisturizing rating
3.8
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 0.3 10
0.3
0.3
Occlusivity All occlusives 14.4 20
7.2
11.0
1.5
1.0
0.3
0.3
0.3
Moisturizing rating
3.8
Ingredient Est. % Benchmark Humectancy
0.3
All humectants 0.3 10
0.3
All humectants
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
11
1.5
1
0.3
0.3
0.3
All occlusives 14.4 20
7.2
All occlusives
14.4
11.0
1.5
1.0
0.3
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 -
Total
0
Camellia Sinensis Leaf Extract
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Fucus Vesiculosus Extract
-
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
11
0.3
0.3
0.3
0.3
0.3
0.3
All antioxidants 12.8 3 Rich in antioxidants
All antioxidants
12.8
Olea Europaea (Olive) Fruit Oil
11
Curcuma Longa (Turmeric) Root Extract
0.3
Glycine Soja (Soybean) Oil
0.3
Camellia Sinensis Leaf Extract
0.3
Vanilla Planifolia Fruit Extract
0.3
Rosmarinus Officinalis (Rosemary) Leaf Extract
0.3
Lavandula Angustifolia (Lavender) Flower/Leaf/Stem Extract
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
0.3
0.3
0.3
0.3
0.3
0.3
All soothing 1.8 5 No
All soothing
1.8
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
5

Ingredients explained

C14-22 Alkane
Est. %40
Function
Origin
C14-22 Alkane
Zinc Oxide
Est. %22
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.
Olea Europaea (Olive) Fruit Oil
Est. %11
Function
Origin
Olea Europaea (Olive) Fruit Oil

A famous olive oil widely used in skincare as an emollient and occlusive moisturizer. It contains mainly unsaturated fatty acids, antioxidant flavonoids, and oleuropeins. Olive oil is listed as a common comedogenic ingredient by acne.org.

Sorbitan Olivate
Est. %6
Function
Origin
Sorbitan OlivateAn ester of sorbitol (a type of sugar alcohol) and olive oil fatty acids. It is used as an emulsifying agent to stabilize oil droplets in water (or vice versa).
Diisopropyl Adipate
Est. %4
Function
Origin
Diisopropyl AdipateA synthetic oil-like ingredient with a light feel and softening effect not just on skin, but for products as a whole.
C9-12 Alkane
Est. %3
Function
Origin
C9-12 Alkane
Silica
Est. %2
Function
Origin
SilicaA widely used cosmetic ingredient with the same chemical composition as the sand found on beaches. A common function of silica is its ability to control viscosity. In certain chemical forms, it can effectively thicken cream-style products.
Oryza Sativa (Rice) Bran Wax
Est. %1.5
Function
Origin
Oryza Sativa (Rice) Bran WaxA solid, strongly emollient, and occlusive moisturizing wax obtained from rice bran oil. It is also used as a formula helper.
Vegetable Oil
Est. %1
Function
Origin
Vegetable OilAn occlusive moisturizing and emollient fatty oil obtained from various plant sources. It consists mainly of triglycerides and saturated or unsaturated fatty acids.
Simmondsia Chinensis (Jojoba) Seed Oil
Est. %0.3
Function
Origin
Simmondsia Chinensis (Jojoba) Seed OilA liquid plant wax, also known as Jojoba oil, pressed from the seeds of Simmondsia chinensis. These seeds can contain up to 50% of liquid wax. It is used as an occlusive moisturizer, emollient, and emulsifier.
Curcuma Longa (Turmeric) Root Extract
Est. %0.3
Function
Origin
Curcuma Longa (Turmeric) Root ExtractAn extract derived from the thick roots of curcuma (turmeric), a famous yellow spice and a major ingredient in curry powder. It is used in skincare for its proven antioxidant and anti-inflammatory properties.
Saccharomyces Ferment
Est. %0.3
Function
Origin
Saccharomyces Ferment
Polyglyceryl-6 Olivate
Est. %0.3
Function
Origin
Polyglyceryl-6 Olivate
Triethoxycaprylylsilane
Est. %0.3
Function
Origin
TriethoxycaprylylsilaneA binding and coating ingredient that allows pigments like iron oxides and mica to disperse better in oily environments. This leads to more vibrant colors.
Coco-Caprylate/Caprate
Est. %0.3
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.
Glycine Soja (Soybean) Oil
Est. %0.3
Function
Origin
Glycine Soja (Soybean) OilAn occlusive moisturizing oil expressed from soybeans. It does not leave an oily feeling on the skin due to its low content of saturated fatty acids. Glycine soja oil contains emollient fatty acids and a significant amount of antioxidants.
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.
Triethyl Citrate
Est. %0.3
Function
Origin
Triethyl Citrate
Lauroyl Lysine
Est. %0.3
Function
Origin
Lauroyl LysineA synthetic insoluble powder that improves the texture of a product, leaving the skin silky smooth and absorbing oils and sweat.
Bis(Cyano Butylacetate) Anthracenediylidene
Est. %0.3
Function
Origin
Bis(Cyano Butylacetate) Anthracenediylidene
Polyglyceryl-3 Diisostearate
Est. %0.3
Function
Origin
Polyglyceryl-3 DiisostearateA vegetable-based ingredient that stabilizes mixtures of oil and water.
Oryza Sativa (Rice) Germ Extract
Est. %0.3
Function
Origin
Oryza Sativa (Rice) Germ Extract
Oryza Sativa (Rice) Extract
Est. %0.3
Function
Origin
Oryza Sativa (Rice) ExtractAn abrasive rice extract rich in various emollient fatty acids, amino acids, and vitamin E.
Caprylic/Capric Triglyceride
Est. %0.3
Function
Origin
Caprylic/Capric TriglycerideA natural occlusive moisturizing and emollient ingredient, it is a blend of glycerin and two fatty acids, caprylic and capric acid. It creates an oil-based protective layer on the skin, thereby preventing water loss.
Camellia Sinensis Leaf Extract
Est. %0.3
Function
Origin
Camellia Sinensis Leaf Extract

An antioxidant green tea extract. In the deeper layers, it slows down the destruction of collagen, elastin, and hyaluronic acid – thus delaying the signs of aging. It also acts as an anti-acne, soothing, moisturizing, and emollient ingredient.

Vanilla Planifolia Fruit Extract
Est. %0.3
Function
Origin
Vanilla Planifolia Fruit ExtractA fragrant and flavoring extract derived from vanilla pods. Vanillin is the main compound responsible for its scent and taste. Other compounds present in the vanilla pod are antioxidant and soothin tannins, polyphenols, and free amino acids.
Linalyl Acetate
Est. %0.3
Function
Origin
Linalyl Acetate
Fucus Vesiculosus Extract
Est. %0.3
Function
Origin
Fucus Vesiculosus ExtractAn extract from a brown sea algae called bladderwrack. It was shown to increase skin elasticity in one study and boost collagen and HA production in another. Polysaccharides are able to treat irritated and dry skin.
Salvia Officinalis (Sage) Flower/Leaf/Stem Extract
Est. %0.3
Function
Origin
Salvia Officinalis (Sage) Flower/Leaf/Stem Extract
Rosmarinus Officinalis (Rosemary) Leaf Extract
Est. %0.3
Function
Origin
Rosmarinus Officinalis (Rosemary) Leaf ExtractA soothing and astringent extract derived from the fragrant, spicy leaves of rosemary. It has strong antioxidant properties. Rosemary extract can reduce signs of inflammation and also acts as an emollient and antimicrobial agent.
Lavandula Angustifolia (Lavender) Flower/Leaf/Stem Extract
Est. %0.3
Function
Origin
Lavandula Angustifolia (Lavender) Flower/Leaf/Stem ExtractAn extract obtained from various parts of true lavender. It mainly contains fragrant essential oil and also offers other beneficial phytochemicals with antioxidant, astringent, and cleansing effects.
Salvia Triloba Leaf Extract
Est. %0.3
Function
Origin
Salvia Triloba Leaf Extract
Jasminum Officinale (Jasmine) Flower/Leaf Extract
Est. %0.3
Function
Origin
Jasminum Officinale (Jasmine) Flower/Leaf ExtractObtained from the leaves and fragrant flowers of jasmine, this soothing and occlusive moisturizing extract has a beautiful heavy, sweet, jasmine scent.
Rosa Damascena Flower Extract
Est. %0.3
Function
Origin
Rosa Damascena Flower ExtractDerived from the flowers of the Damask rose, this extract contains the luxurious fragrant rose essential oil and astringent tannins.
Linalool
Est. %0.3
Function
Origin
LinaloolA fragrant, volatile compound naturally present in many essential oils. It has a pleasant scent and is often used in skincare products as a fragrance. People with sensitive skin should try to avoid it, or at least do a patch test before using it.