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Sesderma Azelac RU Luminous Fluid SPF 50
Sesderma

Sesderma Azelac RU Luminous Fluid SPF 50

SPF 50Efficacy90/100IrritancyHigh·6 UV filters
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Works for

4 of 4 advertised claims delivered

Sun protection
SPF 50 · 6 UV filters
Broad spectrum
SPF 50Broad spectrumChemical filtersNano filters

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.

UV spectrum
UVB290–320 nmUVA II320–340 nmUVA I340–400 nm
Octinoxate
Uvinul T
Octisalate
Titanium Dioxide
Tinosorb S
Avobenzone
FilterCoverageWhat it doesEst. amount
OctinoxateEthylhexyl MethoxycinnamateUVBOctinoxate. When used in higher concentrations, works as a sunscreen protecting the skin from UVB rays. When used in lower concentration, helps to preserve the product formulation. Is shown to be harmful to coral reefs - consider avoiding bathing in coral reef areas when wearing a product with this ingredient. It can be irritating~5.2–6.3%
Uvinul TEthylhexyl TriazoneUVB Photo-stable Uvinul T. A UV filter. Effective against UVB rays. It is photostable. Can increase water resistance properties of the sunscreen. Unfortunately, not approved by the FDA (US) yet~3.3–4%
OctisalateEthylhexyl SalicylateUVBOctisalate. 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~2.6–3.2%
Titanium Dioxide Mineral UVBUVA2 Photo-stable 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~0.55–0.85%
Tinosorb SBis-ethylhexyloxyphenol Methoxyphenyl TriazineUVBUVA Photo-stable Tinosorb S. One of the most effective broad spectrum sunscreen ingredients. Protects from both UVA and UVB rays. It is photostable. Unfortunately, not approved by FDA (US) yet.~2–2.4%
AvobenzoneButyl MethoxydibenzoylmethaneUVA1Avobenzone. 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.~1.7–2.1%
~ marks concentrations estimated from label position and typical use levels
Anti-aging
3-o-ethyl ascorbic acid, Tocopherol + 1 more
Strong evidence
What the product description says
“Working to treat as well as prevent the visible signs of ageing, the fluid is infused with active ingredients to help reduce the appearance of age spots and blemishes.”
Source: Lookfantastic

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.

3-o-ethyl ascorbic acidEffect: LowA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products~0.3–0.55%
TocopherolEffect: Low, below effective dosePure 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~0.15–0.3%
Ascorbyl palmitateEffect: Low, below effective doseBeing a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.~0.25–0.5%
Anti-blemish
Azelaic acid
Strong evidence
What the product description says
“Working to treat as well as prevent the visible signs of ageing, the fluid is infused with active ingredients to help reduce the appearance of age spots and blemishes.”
Source: Lookfantastic

This product can help reduce breakouts and clogged pores because it contains the following ingredient: azelaic acid. This ingredient is used for treating acne and can have a noticeable effect.

Azelaic acidHeroEffect: HighIs produced by a yeast that lives on normal human skin. It is used in medicine as a topical treatment for mild to moderate acne. It has a mild exfoliating effect. It can also help reduce hyperpigmentation, helps calm down inflammation and can help neutralize free radicals~0.3–0.5%
Evens skin tone
Undecylenoyl phenylalanine, Azelaic acid + 2 more
Strong evidence
What the product description says
“Offering de-pigmenting action, the fluid helps to even the skin tone and reduce the intensity of existing imperfections, while providing a protective shield to help prevent the formation of new blemishes.”
Source: Lookfantastic

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).

Undecylenoyl phenylalanineKey activeEffect: HighAn amino-acid based compound that is effective in reducing hyperpigmentation. It can help lighten sun spots and support more even skin tone.~0.1–0.2%
Azelaic acidKey activeEffect: HighIs produced by a yeast that lives on normal human skin. It is used in medicine as a topical treatment for mild to moderate acne. It has a mild exfoliating effect. It can also help reduce hyperpigmentation, helps calm down inflammation and can help neutralize free radicals~0.3–0.5%
Tranexamic acidKey activeEffect: HighAn amino acid that is effective in reducing hyperpigmentation and evening out the skin tone. It can also help in skin barrier recovery. It is used to treat melasma, especially with injections and when taken orally~0.1–0.2%
3-o-ethyl ascorbic acidKey activeEffect: MediumA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products~0.3–0.55%
Anti-oxidation
Not advertised by the brand · Azelaic acid, 3-o-ethyl ascorbic acid + 2 more
Strong evidence

This product contains antioxidants (azelaic acid) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).

The following ingredients - 3-o-ethyl ascorbic acid also can have an antioxidant effect, but there is less evidence to confirm their effectiveness in skin.

Azelaic acidKey activeEffect: HighIs produced by a yeast that lives on normal human skin. It is used in medicine as a topical treatment for mild to moderate acne. It has a mild exfoliating effect. It can also help reduce hyperpigmentation, helps calm down inflammation and can help neutralize free radicals~0.3–0.5%
3-o-ethyl ascorbic acidKey activeEffect: MediumA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products~0.3–0.55%
TocopherolUnder-dosedEffect: HighPure 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~0.15–0.3%
Ascorbyl palmitateEffect: Low, below effective doseBeing a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.~0.25–0.5%
Moisturizing
Not advertised by the brand · Dimethicone, Glycerin + 12 more
Good evidence

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, bis-peg-18 methyl ether dimethyl silane.

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, cyclopentasiloxane.

DimethiconeKey active· Emollient, OcclusiveEffect: HighA 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~0.35–0.6%
GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~0.3–0.55%
Tranexamic acidKey activeEffect: HighAn amino acid that is effective in reducing hyperpigmentation and evening out the skin tone. It can also help in skin barrier recovery. It is used to treat melasma, especially with injections and when taken orally~0.1–0.2%
Isostearyl alcoholKey active· EmollientEffect: MediumHelps soften the upper layer of the skin~0.5–0.75%
CyclopentasiloxaneKey active· EmollientEffect: MediumA silicone that helps improve the product texture and spreadability. Can absorb oil creating a short-term mattifying effect on the skin~1.7–2.1%
Propylene glycol· HumectantEffect: LowHelps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating~3.2–3.9%
Bis-peg-18 methyl ether dimethyl silane· Humectant, EmollientEffect: LowA type of silicone that helps soften the upper layer of the skin and create a nice product texture~0.7–1.05%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.3–0.55%
Glyceryl stearate· EmollientEffect: LowAn emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together~0.3–0.6%
Butylene glycol· HumectantEffect: LowUsed 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~4.3–5.2%
Polysilicone-11Effect: LowA silicone that forms a light film on the skin surface helping to bind water and temporarily absorb oils creating a matt and powdery feel~0.25–0.5%
Caprylic/capric triglycerideUnder-dosedEffect: HighA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~0.35–0.6%
TocopherolEffect: Low, below effective dosePure 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~0.15–0.3%
LecithinEffect: Low, below effective doseUsed mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin~0.3–0.55%

Can it cause trouble?

Irritancy
3 strong irritants: Bellis perennis flower extract, Melissa officinalis leaf extract + 1 more — patch-test recommended
High risk
We flagged 25 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Ethylhexyl methoxycinnamateOctinoxate. When used in higher concentrations, works as a sunscreen protecting the skin from UVB rays. When used in lower concentration, helps to preserve the product formulation. Is shown to be harmful to coral reefs - consider avoiding bathing in coral reef areas when wearing a product with this ingredient. It can be irritatingHigh~5.2–6.3%est.
Propylene glycolHelps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritatingHigh~3.2–3.9%est.
Bellis perennis flower extractA plant extract. Used as a fragrance. Can be irritatingHigh~0.55–0.8%est.
3-o-ethyl ascorbic acidA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in productsHigh~0.3–0.55%est.
AlcoholCan be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial propertiesHigh~0.3–0.55%est.
Alcohol denat.Produces temporary toning effect. Can help dissolve other ingredients or preserve productsHigh~0.3–0.55%est.
Decyl glucosideHelps oil and water mix together. Can be irritatingHigh~0.35–0.65%est.
Glyceryl oleateHelps oil and water mix together. Can be irritatingHigh~0.3–0.55%est.
Melissa officinalis leaf extractA plant extract that is added for its fragrance. Can be irritatingHigh~0.25–0.5%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.25–0.45%est.
Phenethyl alcoholA fragrance. Can be irritatingHigh~0.25–0.5%est.
Undecylenoyl phenylalanineAn amino-acid based compound that is effective in reducing hyperpigmentation. It can help lighten sun spots and support more even skin tone.High~0.1–0.2%est.
Ethylhexyl triazoneUvinul T. A UV filter. Effective against UVB rays. It is photostable. Can increase water resistance properties of the sunscreen. Unfortunately, not approved by the FDA (US) yetMedium~3.3–4%est.
Bis-ethylhexyloxyphenol methoxyphenyl triazineTinosorb S. One of the most effective broad spectrum sunscreen ingredients. Protects from both UVA and UVB rays. It is photostable. Unfortunately, not approved by FDA (US) yet.Medium~2–2.4%est.
Butyl methoxydibenzoylmethaneAvobenzone. 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.Medium~1.7–2.1%est.
Acrylates/c10-30 alkyl acrylate crosspolymerMaintains the texture of skincare products. Allows the product to spread evenly. Helps oil and water mix togetherMedium~0.45–0.65%est.
Ascorbyl palmitateBeing a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.Medium~0.25–0.5%est.
BhtA preservativeMedium~0.25–0.5%est.
Butylene glycol cocoateHelps oil and water mix togetherMedium~0.3–0.55%est.
Caprylic/capric triglycerideA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerinMedium~0.35–0.6%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.3–0.55%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.25–0.5%est.
Disodium edtaStabilizes the product formulationMedium~0.25–0.5%est.
EthylhexylglycerinA preservativeMedium~0.25–0.5%est.
Hexylene glycolHelps create a more spreadable product textureMedium~0.25–0.5%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged
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Alternatives
Cheaper, or higher on efficacy
Anthelios UV Control Sunscreen SPF 50
La Roche-Posay Anthelios UV Control Sunscreen SPF 50
CheaperHigher efficacy · 100/10073% match
$33.41
Pigmentbio Brightening Face Cream SPF50+
Bioderma Pigmentbio Brightening Face Cream SPF50+
CheaperHigher efficacy · 100/10071% match
$24.73
View all alternatives

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Ingredients

Filter by role to see what each ingredient is doing.

Water~45–55%
Formula
Irritation risk
Low

Plain old water

More about Water
Ethylhexyl methoxycinnamate~5.2–6.3%
UV filterKey activeIrritant · high
Irritation risk
High
Works for
Sun protection

Octinoxate. When used in higher concentrations, works as a sunscreen protecting the skin from UVB rays. When used in lower concentration, helps to preserve the product formulation. Is shown to be harmful to coral reefs - consider avoiding bathing in coral reef areas when wearing a product with this ingredient. It can be irritating

More about Ethylhexyl methoxycinnamate
Butylene glycol~4.3–5.2%
Formula
Irritation risk
Low
Works for
Moisturizing

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

More about Butylene glycol
Propylene glycol~3.2–3.9%
Irritant · high
Irritation risk
High
Works for
Moisturizing

Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating

More about Propylene glycol
Ethylhexyl triazone~3.3–4%
UV filterKey activeIrritant · medium
Irritation risk
Medium
Works for
Sun protection

Uvinul T. A UV filter. Effective against UVB rays. It is photostable. Can increase water resistance properties of the sunscreen. Unfortunately, not approved by the FDA (US) yet

More about Ethylhexyl triazone
Ethylhexyl salicylate~2.6–3.2%
UV filter
Irritation risk
Low
Works for
Sun protection

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

More about Ethylhexyl salicylate
Cyclopentasiloxane~1.7–2.1%
Key active
Irritation risk
Low
Works for
MattifyingMoisturizing

A silicone that helps improve the product texture and spreadability. Can absorb oil creating a short-term mattifying effect on the skin

More about Cyclopentasiloxane
Bis-ethylhexyloxyphenol methoxyphenyl triazine~2–2.4%
UV filterKey activeIrritant · medium
Irritation risk
Medium
Works for
Sun protection

Tinosorb S. One of the most effective broad spectrum sunscreen ingredients. Protects from both UVA and UVB rays. It is photostable. Unfortunately, not approved by FDA (US) yet.

More about Bis-ethylhexyloxyphenol methoxyphenyl triazine
Butyl methoxydibenzoylmethane~1.7–2.1%
UV filterKey activeIrritant · medium
Irritation risk
Medium
Works for
Sun protection

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.

More about Butyl methoxydibenzoylmethane
Polymethyl methacrylate~1–1.2%
Formula
Irritation risk
Low

Is used to enhance product texture and can help to optically mask skin imperfections

More about Polymethyl methacrylate
Bis-peg-18 methyl ether dimethyl silane~0.7–1.05%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

A type of silicone that helps soften the upper layer of the skin and create a nice product texture

More about Bis-peg-18 methyl ether dimethyl silane
Bellis perennis flower extract~0.55–0.8%
Irritant · high
Irritation risk
High

A plant extract. Used as a fragrance. Can be irritating

More about Bellis perennis flower extract
Mica~0.65–0.95%
Formula
Irritation risk
Low

Creates an illusion of smoother and more radiant skin tone. Adds shimmer to the skin by reflecting light

More about Mica
Isostearyl alcohol~0.5–0.75%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Isostearyl alcohol
Titanium dioxide~0.55–0.85%
UV filterUnder-dosed
Irritation risk
Low
Works for
Sun protection

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

More about Titanium dioxide
Titanium dioxide~0.55–0.85%
UV filterUnder-dosed
Irritation risk
Low
Works for
Sun protection

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

More about Titanium dioxide
Acrylates/c10-30 alkyl acrylate crosspolymer~0.45–0.65%
Irritant · medium
Irritation risk
Medium

Maintains the texture of skincare products. Allows the product to spread evenly. Helps oil and water mix together

More about Acrylates/c10-30 alkyl acrylate crosspolymer
Nicotiana benthamiana hexapeptide-40 sh-polypeptide-2~0.35–0.6%
Formula
Irritation risk
Low
More about Nicotiana benthamiana hexapeptide-40 sh-polypeptide-2
3-o-ethyl ascorbic acid~0.3–0.55%
Key activeIrritant · high
Irritation risk
High
Works for
Evens skin toneAnti-oxidationAnti-aging

A vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products

More about 3-o-ethyl ascorbic acid
4-butylresorcinol~0.3–0.55%
Formula
Irritation risk
Low
More about 4-butylresorcinol
Alcohol~0.3–0.55%
Irritant · high
Irritation risk
High
Works for
Antibacterial

Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties

More about Alcohol
Alcohol denat.~0.3–0.55%
Irritant · high
Irritation risk
High

Produces temporary toning effect. Can help dissolve other ingredients or preserve products

More about Alcohol denat.
Ascorbyl palmitate~0.25–0.5%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidationAnti-aging

Being a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.

More about Ascorbyl palmitate
Azelaic acid~0.3–0.5%
Hero · Anti-blemish
Irritation risk
Low
Works for
Anti-blemishAnti-oxidationEvens skin toneExfoliation

Is produced by a yeast that lives on normal human skin. It is used in medicine as a topical treatment for mild to moderate acne. It has a mild exfoliating effect. It can also help reduce hyperpigmentation, helps calm down inflammation and can help neutralize free radicals

More about Azelaic acid
Bht~0.25–0.5%
Irritant · medium
Irritation risk
Medium

A preservative

More about Bht
Butylene glycol cocoate~0.3–0.55%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Butylene glycol cocoate
Caprylic/capric triglyceride~0.35–0.6%
Under-dosedIrritant · medium
Irritation risk
Medium
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

More about Caprylic/capric triglyceride
Caprylyl glycol~0.3–0.55%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Carbomer~0.25–0.5%
Formula
Irritation risk
Low
Works for
Cleansing

Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations

More about Carbomer
Citric acid~0.25–0.5%
Irritant · medium
Irritation risk
Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid
Decyl glucoside~0.35–0.65%
Irritant · high
Irritation risk
High
Works for
Cleansing

Helps oil and water mix together. Can be irritating

More about Decyl glucoside
Diacetyl boldine~0.25–0.5%
Formula
Irritation risk
Low
More about Diacetyl boldine
Dimethicone~0.35–0.6%
Key active
Irritation risk
Low
Works for
MoisturizingMattifying

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

More about Dimethicone
Dipotassium phosphate~0.25–0.5%
Formula
Irritation risk
Low

Used to adjust the pH of the product

More about Dipotassium phosphate
Disodium edta~0.25–0.5%
Irritant · medium
Irritation risk
Medium

Stabilizes the product formulation

More about Disodium edta
Disodium phosphate~0.25–0.5%
Formula
Irritation risk
Low

Helps adjust the product pH and stabilize the formulation

More about Disodium phosphate
Ethylcellulose~0.3–0.55%
Formula
Irritation risk
Low
More about Ethylcellulose
Ethylhexylglycerin~0.25–0.5%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Glycerin~0.3–0.55%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Glyceryl oleate~0.3–0.55%
Irritant · high
Irritation risk
High
Works for
Cleansing

Helps oil and water mix together. Can be irritating

More about Glyceryl oleate
Glyceryl stearate~0.3–0.6%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

An emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together

More about Glyceryl stearate
Hexylene glycol~0.25–0.5%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps create a more spreadable product texture

More about Hexylene glycol
Lecithin~0.3–0.55%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

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

More about Lecithin
Melissa officinalis leaf extract~0.25–0.5%
Irritant · high
Irritation risk
High

A plant extract that is added for its fragrance. Can be irritating

More about Melissa officinalis leaf extract
Parfum~0.25–0.45%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Phenethyl alcohol~0.25–0.5%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Phenethyl alcohol
Phenoxyethanol~0.25–0.5%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Polysilicone-11~0.25–0.5%
Formula
Irritation risk
Low
Works for
MattifyingMoisturizing

A silicone that forms a light film on the skin surface helping to bind water and temporarily absorb oils creating a matt and powdery feel

More about Polysilicone-11
Polysorbate 20~0.25–0.5%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Polysorbate 20
Potassium phosphate~0.25–0.45%
Formula
Irritation risk
Low

Helps regulate the pH of the formulation

More about Potassium phosphate
Silica~0.35–0.65%
Formula
Irritation risk
Low

Used to absorb oil and can temporarily mattify skin

More about Silica
Sodium chloride~0.2–0.4%
Formula
Irritation risk
Low

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

More about Sodium chloride
Sodium cholate~0.15–0.3%
Formula
Irritation risk
Low
More about Sodium cholate
Sodium hydroxide~0.15–0.3%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
Tocopherol~0.15–0.3%
Under-dosed
Irritation risk
Low
Works for
Anti-oxidationAnti-agingAnti-inflammatoryMoisturizing

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

More about Tocopherol
Tranexamic acid~0.1–0.2%
Key active
Irritation risk
Low
Works for
Evens skin toneMoisturizing

An amino acid that is effective in reducing hyperpigmentation and evening out the skin tone. It can also help in skin barrier recovery. It is used to treat melasma, especially with injections and when taken orally

More about Tranexamic acid
Undecylenoyl phenylalanine~0.1–0.2%
Key activeIrritant · high
Irritation risk
High
Works for
Evens skin tone

An amino-acid based compound that is effective in reducing hyperpigmentation. It can help lighten sun spots and support more even skin tone.

More about Undecylenoyl phenylalanine
Ingredient list view

Water, Ethylhexyl methoxycinnamate, Butylene glycol, Propylene glycol, Ethylhexyl triazone, Ethylhexyl salicylate, Cyclopentasiloxane, Bis-ethylhexyloxyphenol methoxyphenyl triazine, Butyl methoxydibenzoylmethane, Polymethyl methacrylate, Bis-peg-18 methyl ether dimethyl silane, Bellis perennis flower extract, Mica, Isostearyl alcohol, Titanium dioxide, Titanium dioxide, Acrylates/c10-30 alkyl acrylate crosspolymer, Nicotiana benthamiana hexapeptide-40 sh-polypeptide-2, 3-o-ethyl ascorbic acid, 4-butylresorcinol, Alcohol, Alcohol denat., Ascorbyl palmitate, Azelaic acid, Bht, Butylene glycol cocoate, Caprylic/capric triglyceride, Caprylyl glycol, Carbomer, Citric acid, Decyl glucoside, Diacetyl boldine, Dimethicone, Dipotassium phosphate, Disodium edta, Disodium phosphate, Ethylcellulose, Ethylhexylglycerin, Glycerin, Glyceryl oleate, Glyceryl stearate, Hexylene glycol, Lecithin, Melissa officinalis leaf extract, Parfum, Phenethyl alcohol, Phenoxyethanol, Polysilicone-11, Polysorbate 20, Potassium phosphate, Silica, Sodium chloride, Sodium cholate, Sodium hydroxide, Tocopherol, Tranexamic acid, Undecylenoyl phenylalanine

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Amazon UKPrice as of 10/17/2026 21:56 GMT
≈ $46.72
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Lookfantastic
≈ $61.40
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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
SesdermaAzelac RU Luminous Fluid SPF 50YOUR PRODUCTLa Roche-PosayAnthelios UV Control Sunscreen SPF 50BiodermaPigmentbio Brightening Face Cream SPF50+Jack BlackDual Defense Face Moisturizer SPF 30
Match—73%71%70%
Price$46.79$33.41−$13.38$24.73−$22.06$35.00−$11.79
Shared key ingredients—4 of 146 of 145 of 14
Key difference—Helianthus Annuus Seed WaxNiacinamideNiacinamide
Irritancy High Low Medium Medium
SPFSPF 50SPF 50SPF 50SPF 30
Drying alcohol Contains drying alcohol ———
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Product summary

The ingredient list suggests that "Sesderma - Azelac RU Luminous Fluid SPF 50" can provide reliable sun protection. We love that it can protect from both UVA and UVB rays (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).

Its formula is also hydrating, so you might not need an additional moistruizer during the day. Like all broad-spectrum sunscreens, this product helps prevent early signs of aging.

Sunscreen filters

This is a "mixed" sunscreen in the sense that it uses both mineral and organic (so-called "chemical") sun filters. The organic filters in the product are: tinosorb s, avobenzone, octinoxate, octisalate and uvinul t. 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 moisturizer 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.

Price

The product retails for 63.50$ in the United States and from 32.75£ up to 46.00£ in the United Kingdom.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 17 studies and safety reviews.

  1. 1
    Surfactants and experimental irritant contact dermatitisncbi.nlm.nih.gov
  2. 2
    Propylene Glycolpubmed.ncbi.nlm.nih.gov
  3. 3
    Skin-sensitizing and irritant properties of propylene glycolonlinelibrary.wiley.com
  4. 4
    Antioxidant Ability and Stability Studies of 3-O-Ethyl Ascorbic Acid, a Cosmetic Tyrosinase Inhibitorncbi.nlm.nih.gov
  5. 5
    Ecofriendly surfactant is allergen of the yearmdedge.com
  6. 6
    Dimethicone as a protective ingredient in topical medicationsjaad.org
Sesderma Azelac RU Luminous Fluid SPF 50
SesdermaAzelac RU Luminous Fluid SPF 50
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As an Amazon Associate, WIMJ earns from qualifying purchases.