PRODUCT REVIEW
Sesderma Azelac RU Luminous Fluid SPF 50
Buy from Amazon UK £32.15
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Price as of 2/12/2025 2:55 GMT.
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Product summary
What can the product work for?
Sun protection
Irritation risk:
UVA I protection: UVA II protection: UVB protection: Photo stable: Ingredient type Organic
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.
butyl methoxydibenzoylmethane
1.7% -
2.1%
Irritation risk:
UVA I protection: UVA II protection: UVB protection: Photo stable: Ingredient type Organic
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.
ethylhexyl methoxycinnamate
5.2% -
6.3%
Irritation risk:
UVA I protection: UVA II protection: UVB protection: Photo stable: Ingredient type Organic
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
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Anti-blemish
What does the product description say?
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.
azelaic acid
0.3% -
0.5%
Irritation risk:
Concentration: Effectiveness: HIGH
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
Anti-aging
What does the product description say?
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.
3-o-ethyl ascorbic acid
0.35% -
0.6%
Irritation risk:
Concentration: Insufficient!
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
tocopherol
0.15% -
0.3%
Irritation risk:
Concentration: Insufficient!
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
ascorbyl palmitate
0.3% -
0.55%
Irritation risk:
Concentration: Insufficient!
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.
Evens skin tone
What does the product description say?
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.
azelaic acid
0.3% -
0.5%
Irritation risk:
Concentration: Effectiveness: HIGH
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
tranexamic acid
0.1% -
0.2%
Irritation risk:
Concentration: Effectiveness: HIGH
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
undecylenoyl phenylalanine
0.1% -
0.2%
Irritation risk:
Concentration: Effectiveness: HIGH
An amino-acid based compound that is effective in reducing hyperpigmentation. It can help lighten sun spots and support more even skin tone.
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Moisturizing
glycerin
0.3% -
0.55%
Irritation risk:
Concentration: Effectiveness: HIGH
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
tranexamic acid
0.1% -
0.2%
Irritation risk:
Concentration: Effectiveness: HIGH
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
dimethicone
0.35% -
0.6%
Irritation risk:
Concentration: Effectiveness: HIGH
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
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Anti-oxidation
azelaic acid
0.3% -
0.5%
Irritation risk:
Concentration: Effectiveness: HIGH
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
tocopherol
0.15% -
0.3%
Irritation risk:
Concentration: Insufficient!
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
3-o-ethyl ascorbic acid
0.35% -
0.6%
Irritation risk:
Concentration: Insufficient!
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
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Honesty check
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Sun protection | |
| Anti-aging | |
| Evens skin tone | |
| Anti-blemish |
Total Promises Fulfilled score:
90/100.
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Can it cause trouble?
- Overall product irritation risk
- Acne & comedogenic risk ingredients: 0
Potential irritants
ethylhexyl methoxycinnamate
5.2% -
6.3%
Irritation risk:
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
propylene glycol
3.2% -
3.9%
Irritation risk:
Works for:
Moisturizing
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
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Comodogenic ingredients
No comodogenic ingredients detected
User reviews (0)
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71%
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| Irritancy | IRRITANCY
HIGH
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MEDIUM
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HIGH
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HIGH
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MEDIUM
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LOW
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MEDIUM
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Ingredients & concentrations
All ingredients
Key Actives
azelaic acid
0.3% -
0.5%
Irritation risk:
Works for:
Anti-oxidation,
Evens skin tone,
Anti-blemish,
Exfoliation
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
3-o-ethyl ascorbic acid
0.35% -
0.6%
Irritation risk:
Works for:
Evens skin tone,
Anti-oxidation,
Anti-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
Show more
Potential irritants
ethylhexyl methoxycinnamate
5.2% -
6.3%
Irritation risk:
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
propylene glycol
3.2% -
3.9%
Irritation risk:
Works for:
Moisturizing
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
Show more
Comodogenic ingredients
We couldn't find any comodogenic ingredients in this product
All ingredients
ethylhexyl methoxycinnamate
5.2% -
6.3%
Irritation risk:
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
butylene glycol
4.3% -
5.2%
Irritation risk:
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
Show more
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, 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
Sources
- Surfactants and experimental irritant contact dermatitis
- Propylene Glycol
- Skin-sensitizing and irritant properties of propylene glycol
- Antioxidant Ability and Stability Studies of 3-O-Ethyl Ascorbic Acid, a Cosmetic Tyrosinase Inhibitor
- Ecofriendly surfactant is allergen of the year
- Dimethicone as a protective ingredient in topical medications
- Final Report on the Safety Assessment of Dimethicone Copolyol
- Glycerol and the skin: holistic approach to its origin and functions
- Contact Sensitization to Emulsifying Agents: An Underrated Issue?
- Final Report on the Safety Assessment of Phenethyl Alcohol
- Vitamin E in dermatology
- Vitamin E and Skin Health
- Effect of tranexamic acid on melasma: a clinical trial with histological evaluation
- Tranexamic acid accelerates skin barrier recovery and upregulates occludin in damaged skin
- The amelioration effect of tranexamic acid in wrinkles induced by skin dryness
- Efficacy and possible mechanisms of topical tranexamic acid in melasma