A daily city sunscreen that protects and keeps skin smooth and hydrated
Biotherm Urban UV Defense Protective Hydrating Fluid SPF50+ is a very high protection face sunscreen for everyday use in the city, suited to all skin types. It combines a broad-spectrum filter system with Life Plankton, Biotherm's signature ferment, and hyaluronic acid. Together they help protect the skin from UV while keeping it hydrated and smoother day after day. In Biotherm's tests, 91% of women felt their skin hydrated after the first use, and most found it smoother and softer after four weeks.
The texture
A breathable fluid with a light cream feel that absorbs quickly and invisibly. It leaves no white marks, no greasy shine and no sticky film, so it layers well under makeup.
Who it suits
- Anyone who wants SPF50+ as the last step of the morning routine
- Normal to combination skin that dislikes heavy sunscreens
- Dehydrated skin that needs extra comfort
- City days with regular sun exposure
Worth knowing before you buy: The formula contains alcohol and fragrance, which very sensitive or reactive skin may not tolerate. For long days outdoors or at the beach, reapply often.
How long one bottle lasts
Used every morning on the face, the 30ml bottle lasts about 4 weeks.
Complete the routine

Aquasource Deep Serum
A hydrating serum to wear underneath.
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Aquasource Hyalu Plump Gel
A light gel-cream for hydration.
Shop →Characteristics
- Texture: light fluid
- Skin type: all skin types
- Concerns: daily UV exposure, dehydration, rough texture
- When to apply: every morning and before sun exposure
- Main benefits: very high UVA/UVB protection, hydrates, smooths the skin
How to use
Apply generously to the face as the last step of your morning routine, just before sun exposure. Reapply frequently, especially after swimming, sweating or towelling. Keep babies and young children out of direct sunlight.
Active ingredients
- Life Plankton (Vitreoscilla ferment): Biotherm's signature ferment that supports the skin
- Hyaluronic acid (sodium hyaluronate): hydrates and smooths
- UVA and UVB filters: very high broad-spectrum protection
- Tocopherol: antioxidant
Ingredients
AQUA/WATER/EAU · ISOPROPYL MYRISTATE · ALCOHOL DENAT. · ETHYLHEXYL TRIAZONE · DIISOPROPYL ADIPATE · PROPYLENE GLYCOL DICAPRYLATE/DICAPRATE · METHYLENE BIS-BENZOTRIAZOLYL TETRAMETHYLBUTYLPHENOL · DROMETRIZOLE TRISILOXANE · PROPANEDIOL · BIS-ETHYLHEXYLOXYPHENOL METHOXYPHENYL TRIAZINE · BUTYL METHOXYDIBENZOYLMETHANE · DIISOPROPYL SEBACATE · SILICA · CETEARYL ALCOHOL · TOCOPHEROL · DIETHYLAMINO HYDROXYBENZOYL HEXYL BENZOATE · PEG-100 STEARATE · HYDROXYACETOPHENONE · CAPRYLYL GLYCOL · POLYGLYCERYL-10 LAURATE · BUTYLENE GLYCOL · AMMONIUM ACRYLOYLDIMETHYLTAURATE/VP COPOLYMER · SODIUM STEAROYL GLUTAMATE · CETEARYL GLUCOSIDE · GLYCERIN · CARBOMER · PARFUM/FRAGRANCE · PEG-20 · SODIUM HYALURONATE · TRISODIUM ETHYLENEDIAMINE DISUCCINATE · INULIN LAURYL CARBAMATE · PHENOXYETHANOL · VITREOSCILLA FERMENT · T-BUTYL ALCOHOL
Formulations are updated by the manufacturer from time to time. Always check the packaging you receive.
Manufacturer information
Brand: Biotherm
Address: 14 rue Royale, 75008 Paris, France
EAN: 3614273708685
