Works for:
based on ingredients and %- Anti-aging
- Moisturizing
- Sun protection
- Evens skin tone
Can it cause trouble?
- Irritation risk: high
- Comedogenic risk ingredients: 3
Key actives
Product Summary
We believe that "belif - Dew Guard Glow Boost Serum SPF 40" 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).
It contains good moisturizing ingredients and can double as a hydrating day cream. Like all broad-spectrum sunscreens, this product has an anti-aging benefit.
Sunscreen filters
This sunscreen uses a mixture of both mineral and organic (so-called "chemical") UV filters. Here are the organic filters this product uses: avobenzone, octisalate, homosalate and octocrylene. As for the mineral filters, this sunscreen uses titanium dioxide.
Irritation risk
There are quite a few common irritants in this product, including ingredients without particular skin benefits. We would not recommend it for sensitive skin. We assess the overall irritancy of this sunscreen to be high. 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.
Anti-aging
What does the product description say?
Belif's dew guard glow boost serum spf 40 is a three-in-one formula, delivering lightweight hydration, sun protection, and sun-kissed illumination.This korean sunscreen gives your skin a golden glow and creates a 촉촉 (chok-chok) effect — the look and feel of hydrated, bouncy, and plump skin.
Source: N/A
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.
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation
Might be helpful in restoring skin barrier function and, when combined with zinc carbonate and malonic acid, reducing fine lines and wrinkles by stimulating elastin production. Also helps stabilize the product formulation
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
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).
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
Moisturizing
What does the product description say?
Belif's dew guard glow boost serum spf 40 is a three-in-one formula, delivering lightweight hydration, sun protection, and sun-kissed illumination.This korean sunscreen gives your skin a golden glow and creates a 촉촉 (chok-chok) effect — the look and feel of hydrated, bouncy, and plump skin.
Source: N/A
This product can help improve hydration of the skin with the two types of ingredients.
The first type is called “humectants”:
these ingredients help attract water.
When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from
within deeper layers of the skin. The following ingredients in this product do the job:
glycerin, hyaluronic acid.
This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: dimethicone, isododecane.
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: panthenol
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
Helps attract water to the upper layer of the skin and can help improve skin barrier function
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
Attracts water into the upper layer of the skin
A type of hyaluronic acid that works as an excellent moisturizer by attracting water into the upper layer of the skin. Is typically feels less sticky on the skin compared to the usual hyaluronic acid
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin
Attracts water into the upper layer of the skin
A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish
Seaweed extract that might help to attract water to the upper layer of the skin and have some anti-oxidant properties
A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture
An emollient that helps soften the skin and can decrease moisture loss. Helps create a nice product texture
Used to preserve products, dissolve other ingredients and create a nice product texture
An emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together
An emollient that can also help water and oil mix together, as well as prevent bacteria growth in products
Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
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
Sun protection
This product offers a good level of protection against both UVB and UVA rays.
This sunscreen uses organic (so-called "chemical") sunscreen filters. Organic, or "chemical" filters usually provide reliable sun protection and rarely leave a white cast. Sunscreens with organic filters can sting eyes.
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.
A weak sunscreen that protects against the sun rays that cause sunburn (UVB) and is somewhat effective against the UVA rays. It is quite stable and can help stabilize other, more vulnerable, sunscreen ingredients like Avobenzone. It is an organic, or so called "chemical" sunscreen
Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin
Avobenzone. An organic, or so-called "chemical" UV filter. Protects against both UVA and UVB rays. Needs to be combined with other filters in a formulation to be stable.
A weak sunscreen that offers some protection against the sun rays that cause sunburn (UVB), but does not offer meaningful protection against protect against the most aging sun rays (UVA). It loses its effectiveness quickly when exposed to sunlight. It is an organic, or so called "chemical" sunscreen. When used in low concentrations, helps to stabilize the product formulation
An umbrella term for the following three colorants: CI 77491, CI 77492, CI 77499. They might be able to offer some protection against visible light, but the degree of the protection is not clear
Octisalate. A UV filter. It offers some protection against the sun rays that cause sunburn (UVB), but does not protect against the most aging sun rays (UVA). It loses its effectiveness quickly when exposed to sunlight. It is an organic, or so called "chemical" sunscreen
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Sun protection | |
| Anti-aging | |
| Moisturizing |
Total Promises Fulfilled score: 100/100.
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Potential irritants
Comedogenic ingredients
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| Product | Similarity | Price | Irritancy |
|---|---|---|---|
 belif Dew Guard Glow Boost Serum SPF 40 | Current | - | |
e.l.f. SUNTOUCHABLE! WHOA GLOW SPF 30 | 90% | $14.00 | |
 La Roche-Posay Anthelios UV Correct SPF 70 Daily Anti-Aging Face Sunscreen | 89% | $32.99 | |
 Cetaphil Daily Oil-Free Facial Moisturizer With Sunscreen Spf 35 For Sensitive, Combination Skin, 3 Ounces | 88% | $14.92 | |
 Dr. Ceuracle Hyal Reyouth Moist Sun SPF50+ PA++++ | 84% | $19.80 | |
Boots SPF+ Invisible Face Daily Suncare Face Fluid SPF50 | 84% | - |
Key Actives
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
Helps attract water to the upper layer of the skin and can help improve skin barrier function
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation
A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish
Avobenzone. An organic, or so-called "chemical" UV filter. Protects against both UVA and UVB rays. Needs to be combined with other filters in a formulation to be stable.
A weak sunscreen that offers some protection against the sun rays that cause sunburn (UVB), but does not offer meaningful protection against protect against the most aging sun rays (UVA). It loses its effectiveness quickly when exposed to sunlight. It is an organic, or so called "chemical" sunscreen. When used in low concentrations, helps to stabilize the product formulation
A weak sunscreen that protects against the sun rays that cause sunburn (UVB) and is somewhat effective against the UVA rays. It is quite stable and can help stabilize other, more vulnerable, sunscreen ingredients like Avobenzone. It is an organic, or so called "chemical" sunscreen
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin
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
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin
Attracts water into the upper layer of the skin
A type of hyaluronic acid that works as an excellent moisturizer by attracting water into the upper layer of the skin. Is typically feels less sticky on the skin compared to the usual hyaluronic acid
Seaweed extract that might help to attract water to the upper layer of the skin and have some anti-oxidant properties
Attracts water into the upper layer of the skin
Potential irritants
An aromatic blend of unspecified and possibly irritating ingredients
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
Used as a fragrance and can be irritating
Plant extract that has some anti-bacterial properties. Can be used as a fragrance. Can be irritating
A common frangrance that can easily irritate skin, especially if exposed to air, light or heat
Avobenzone. An organic, or so-called "chemical" UV filter. Protects against both UVA and UVB rays. Needs to be combined with other filters in a formulation to be stable.
A weak sunscreen that offers some protection against the sun rays that cause sunburn (UVB), but does not offer meaningful protection against protect against the most aging sun rays (UVA). It loses its effectiveness quickly when exposed to sunlight. It is an organic, or so called "chemical" sunscreen. When used in low concentrations, helps to stabilize the product formulation
A weak sunscreen that protects against the sun rays that cause sunburn (UVB) and is somewhat effective against the UVA rays. It is quite stable and can help stabilize other, more vulnerable, sunscreen ingredients like Avobenzone. It is an organic, or so called "chemical" sunscreen
Used to stabilize the product formulation protecting it from sun light
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
A plant extract that might have some anti-oxidant properties, but evidence is lacking
Used to preserve products, dissolve other ingredients and create a nice product texture
Attracts water into the upper layer of the skin
Comedogenic ingredients
A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture
Seaweed extract that might help to attract water to the upper layer of the skin and have some anti-oxidant properties
All ingredients
Avobenzone. An organic, or so-called "chemical" UV filter. Protects against both UVA and UVB rays. Needs to be combined with other filters in a formulation to be stable.
A weak sunscreen that offers some protection against the sun rays that cause sunburn (UVB), but does not offer meaningful protection against protect against the most aging sun rays (UVA). It loses its effectiveness quickly when exposed to sunlight. It is an organic, or so called "chemical" sunscreen. When used in low concentrations, helps to stabilize the product formulation
Octisalate. A UV filter. It offers some protection against the sun rays that cause sunburn (UVB), but does not protect against the most aging sun rays (UVA). It loses its effectiveness quickly when exposed to sunlight. It is an organic, or so called "chemical" sunscreen
A weak sunscreen that protects against the sun rays that cause sunburn (UVB) and is somewhat effective against the UVA rays. It is quite stable and can help stabilize other, more vulnerable, sunscreen ingredients like Avobenzone. It is an organic, or so called "chemical" sunscreen
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish
A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture
A mineral that is used as an optical filter (makes the skin looks nicer through light reflection) and to improve the texture of cosmetic products
Used to stabilize the product formulation protecting it from sun light
Helps attract water to the upper layer of the skin and can help improve skin barrier function
Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin
An emollient that can also help water and oil mix together, as well as prevent bacteria growth in products
An emollient that helps soften the skin and can decrease moisture loss. Helps create a nice product texture
An emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
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
An aromatic blend of unspecified and possibly irritating ingredients
An umbrella term for the following three colorants: CI 77491, CI 77492, CI 77499. They might be able to offer some protection against visible light, but the degree of the protection is not clear
Might be helpful in restoring skin barrier function and, when combined with zinc carbonate and malonic acid, reducing fine lines and wrinkles by stimulating elastin production. Also helps stabilize the product formulation
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
An umbrella term for the following three colorants: CI 77491, CI 77492, CI 77499. They might be able to offer some protection against visible light, but the degree of the protection is not clear
A colorant that can add a pearl-like appearance to the formulation
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin
Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation
Attracts water into the upper layer of the skin
A type of hyaluronic acid that works as an excellent moisturizer by attracting water into the upper layer of the skin. Is typically feels less sticky on the skin compared to the usual hyaluronic acid
A type of silicone that helps oil and water mix well together. Helps to disperse other ingredients, e.g. pigments, evenly in a formulation
Used as a fragrance and can be irritating
A plant extract that might have some anti-oxidant properties, but evidence is lacking
Used to preserve products, dissolve other ingredients and create a nice product texture
Plant extract that has some anti-bacterial properties. Can be used as a fragrance. Can be irritating
Seaweed extract that might help to attract water to the upper layer of the skin and have some anti-oxidant properties
Attracts water into the upper layer of the skin
A common frangrance that can easily irritate skin, especially if exposed to air, light or heat
Ingredient list view
Butyl methoxydibenzoylmethane, Homosalate, Ethylhexyl salicylate, Octocrylene, Water, Glycerin, Dimethicone, Cetearyl alcohol, Synthetic fluorphlogopite, 1,2-hexanediol, Benzotriazolyl dodecyl p-cresol, Panthenol, Potassium cetyl phosphate, Titanium dioxide, Ci 77891, Glyceryl caprylate, Isododecane, Glyceryl stearate, Niacinamide, Caprylic/capric triglyceride, Acrylates/polytrimethylsiloxymethacrylate copolymer, Parfum, Cetearyl olivate, Inulin lauryl carbamate, Iron oxides, Ci 77491, Sorbitan olivate, Sodium polyacryloyldimethyl taurate, Magnesium aluminum silicate, Xanthan gum, Tromethamine, Sodium hyaluronate, Trisodium edta, Iron oxides, Ci 77499, Tin oxide, Myristica fragrans extract, Hydrolyzed hyaluronic acid, Melissa officinalis flower/leaf/stem water, Rosmarinus officinalis leaf water, Butylene glycol, Ascorbic acid, Hyaluronic acid, Hydrolyzed sodium hyaluronate, Hydroxypropyltrimonium hyaluronate, Sodium acetylated hyaluronate, Triethoxycaprylylsilane, Eucalyptus globulus leaf extract, Mentha rotundifolia leaf extract, Rosa canina fruit extract, Pentylene glycol, Thymus vulgaris leaf extract, Ecklonia cava extract, Hizikia fusiforme extract, Laminaria japonica extract, Ethylhexylglycerin, Sodium hyaluronate crosspolymer, Limonene, Citronellol, Geraniol, Linalool, Citral
- Opinion on Homosalate - Scientific Committee on Consumer Products
- Glycerol and the skin: holistic approach to its origin and functions
- Dimethicone as a protective ingredient in topical medications
- Final Report on the Safety Assessment of Dimethicone Copolyol
- The influence of alkane chain length on the skin irritation potential of 1,2-alkanediols
- Skin moisturizing effects of panthenol-based formulations
- Safety Assessment of Panthenol, Pantothenic Acid, and Derivatives as Used in Cosmetics
- Niacinamide - mechanisms of action and its topical use in dermatology
- Gehring, W. (2004). Nicotinic acid/niacinamide and the skin. Journal of Cosmetic Dermatology, 3(2), 88–93. doi:10.1111/j.1473-2130.2004.00115.x
- Final report on the safety assessment of aluminum silicate, calcium silicate, magnesium aluminum silicate, magnesium silicate, magnesium trisilicate, sodium magnesium silicate, zirconium silicate, attapulgite, bentonite, Fuller's earth, hectorite, kaolin, lithium magnesium silicate, lithium magnesium sodium silicate, montmorillonite, pyrophyllite, and zeolite
- Extracellular matrix in cutaneous ageing: the effects of 0.1% copper-zinc malonate-containing cream on elastin biosynthesis
- Safety Assessment of Tromethamine as Used in Cosmetics
- Hyaluronic acid: A key molecule in skin aging
- Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin care
- Final report on the safety assessment of EDTA, calcium disodium EDTA, diammonium EDTA, dipotassium EDTA, disodium EDTA, TEA-EDTA, tetrasodium EDTA, tripotassium EDTA, trisodium EDTA, HEDTA, and trisodium HEDTA
- Safety Assessment of Tin(IV) Oxide as Used in Cosmetics
- Efficacy of a New Topical Nano-hyaluronic Acid in Humans
- Physiochemical properties and application of hyaluronic acid: a systematic review
- Acetylated Hyaluronic Acid: Enhanced Bioavailability and Biological Studies
- Annex I: Clinical evidence regarding sensitisation to individual fragrance chemicals and to natural extracts