All scans / Sunscreens / ISDIN Fotoprotector Fusion Water SPF 50
ISDIN Fotoprotector Fusion Water SPF 50 ingredients: is it worth it?
Strong daily UV protection, weakened by fragrance and limited transparency about the actual filter concentrations.

Strong daily UV protection, weakened by fragrance and limited transparency about the actual filter concentrations.
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The 3.9/5 efficacy score comes primarily from the multi-filter UV system covering UVB and UVA wavelengths, with broad-spectrum support from avobenzone and Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine; sodium hyaluronate and antioxidant ingredients are positioned too low to drive the score, and no finished-product UVA-PF or filter percentages are provided. The 3.4/5 safety score reflects fragrance and octocrylene exposure potential, although the formula contains no denatured alcohol and the published list does not show harsh surfactants or essential oils.
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DemythSkin rates ISDIN Fotoprotector Fusion Water SPF 50 4.1/5 for efficacy and 4.0/5 for safety.
CONTAINS COMMON SENSITISERS⌄
Fragrance components and essential oils that more often cause reactions in sensitive skin: Parfum (Fragrance). Most people tolerate them; patch test if your skin reacts easily.
ACTIVE INGREDIENTS BY TIER
Gold Standards
High clinical proof | Skin-transformativeReliable
Proven resultsPotent
Developing evidenceOverhyped | Marketing
Hype | Limited dataDocumented Irritants
Evidence-backed flagFORMULATION BASE (13)⌄
FULL INGREDIENT LIST⌄
Aqua (Water), Octocrylene, Propanediol, Butyl Methoxydibenzoylmethane, Ethylhexyl Salicylate, Polymethyl Methacrylate, Dimethicone, Phenylbenzimidazole Sulfonic Acid, Polysilicone-15, Propylene Glycol Dicaprylate/Dicaprate, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Silica, Dimethicone/Vinyl Dimethicone Crosspolymer, 1,2-Hexanediol, Hydroxyacetophenone, Polysorbate 60, PEG-10 Dimethicone, Sodium Hyaluronate, Tocopheryl Acetate, Xanthan Gum, Caprylyl Glycol, Parfum (Fragrance), Disodium EDTA, PEG-8, Tocopherol, Tropolone, Ascorbyl Palmitate, Ascorbic Acid, Citric Acid.
WHAT EACH INGREDIENT DOES (24)⌄
- Aqua (Water)
- Formula solvent
- Octocrylene
- UVB and UVA filter
- Propanediol
- Humectant and solvent
- Butyl Methoxydibenzoylmethane
- UVA filter
- Ethylhexyl Salicylate
- UVB filter and solvent
- Polymethyl Methacrylate
- Texture and soft-focus agent
- Dimethicone
- Silicone emollient
- Phenylbenzimidazole Sulfonic Acid
- Water-soluble UVB filter
- Polysilicone-15
- UVB filter and photostabilizer
- Propylene Glycol Dicaprylate/Dicaprate
- Light emollient
- Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
- Broad-spectrum UV filter
- Silica
- Oil-absorbing texture agent
- Dimethicone/Vinyl Dimethicone Crosspolymer
- Silicone texture modifier
- 1,2-Hexanediol
- Humectant and preservative booster
- Hydroxyacetophenone
- Antioxidant and preservative booster
- Polysorbate 60
- Emulsifier
- PEG-10 Dimethicone
- Silicone emulsifier
- Sodium Hyaluronate
- Humectant
- Tocopheryl Acetate
- Vitamin E derivative
- Xanthan Gum
- Thickener and stabilizer
- Caprylyl Glycol
- Humectant and preservative booster
- Parfum (Fragrance)
- Fragrance
- Disodium EDTA
- Chelating agent
- PEG-8
- Humectant and solvent
EXTERNAL CITATIONS
Butyl Methoxydibenzoylmethane: UVA-filter function in the official formula
Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine: Broad-spectrum UV-filter function in the official formula
Sodium Hyaluronate: Humectant function in the official formula
DISCLAIMER: THIS ANALYSIS IS FOR INFORMATION ONLY. NOT MEDICAL ADVICE. AI-GENERATED DATA BASED ON PUBLICLY AVAILABLE INGREDIENT LISTS. VERIFY WITH A MEDICAL PROFESSIONAL.
ISDIN Fotoprotector Fusion Water SPF 50: common questions
Is ISDIN Fotoprotector Fusion Water SPF 50 worth it?
ISDIN Fotoprotector Fusion Water SPF 50 scores 4.1 out of 5.0 for efficacy (Effective) and 4.0 out of 5.0 for safety (Gentle) on DemythSkin's independent ingredient analysis. Strong daily UV protection, weakened by fragrance and limited transparency about the actual filter concentrations.
What are the key active ingredients in ISDIN Fotoprotector Fusion Water SPF 50?
ISDIN Fotoprotector Fusion Water SPF 50 contains these gold-standard actives with strong clinical evidence: Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Ascorbic Acid.
Does ISDIN Fotoprotector Fusion Water SPF 50 contain fragrance or known irritants?
DemythSkin flags these ingredients in ISDIN Fotoprotector Fusion Water SPF 50 as documented irritants: Parfum (Fragrance). This product does contain fragrance.
How is ISDIN Fotoprotector Fusion Water SPF 50 scored?
DemythSkin grades every product on two independent scores: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are graded S through D against a database of over 3,000 compounds. Brand and price are not part of the score, and no brand pays for one.
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