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4D Intensive Moisturizing Serum

4D Intensive Moisturizing Serum

ALL TYPES OF DEHYDRATED SKIN - AGE 30+ - HYDRATE - PLUMP - SMOOTH

$129.00

(read 2 reviews)

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« An ultra-concentrated moisturizing serum for visible, rapid and long-lasting results. »

Our highest concentration of hyaluronic acids in a serum. Composed of 4 different types of hyaluronic acids, this ultra-concentrated serum with its unique, incomparably fine texture will keep water at the heart of the skin. Also ideal as a post-injection filler.

SCIENTIFIC INNOVATION: Inspired by dermal filler injections, our researchers have used an encapsulation technology that provides the most comfortable touch and feel, and enables optimal penetration of ingredients thanks to Submicronic Emulsion Technology (SME). An encapsulated submicron emulsion with the dual advantage of allowing ingredients to penetrate even more rapidly, ensuring optimal diffusion for enhanced efficacy.

Our 4 forms of hyaluronic acid in this serum:

High molecular weight vectorized H.A. - deep hydration.
Low molecular weight H.A. - captures moisture and improves firmness.
Fragmented H.A. - multi-layer hydration with a plumping effect.
H.A. filling spheres - fills the appearance of deep wrinkles and provides continuous hydration.

See the full list of ingredients here.

Beauty result

The skin is intensely moisturized and smoothed; deep and fines lines seem filled in. It’s proven, a better hydrated skin is plumped up, more radiant and smoother.

Scientifically proven effectiveness:

+46% immediate hydration*

*Instrumental measurement on 10 volunteers, 2 hours after application.

Usage tips

On cleansed skin, before your cream, gently massage over face, neck and décolleté.

Skin type: all types of dehydrated skin.
Age: ideal from age 30 and up.
Use: morning and evening.
Quantity to use: equivalent to the size of a pea (around 1 pump).

Do you have any questions? Check out our FAQ or contact us - we'll be happy to help.

Capacity

Glass Bottle with pump 30 ml

Dija Toubi

a year ago

I had a fantastic experience at my visit. From the moment I walked in, I was impressed by the welcoming atmosphere and the incredible scents of their products—so fresh and natural, you can immediately tell there's quality behind every item. What...

Catherine Sirois

11 months ago

J’adore les produits ! Je les utilise depuis plusieurs années et je ne m’en passerai plus. Ma peau est tellement belle et il y a des choix pour tous les types de peau. J’adore les odeurs, c’est doux et frais ! Je les ai d’ailleurs recommandé à...

Valerie

a year ago

J’adore leurs produits! Les conseillers sont super professionnels ils m’ont fait une routine de jour et nuit qui fait vraiment bien à mon type de peau. Pour la première fois de ma vie je n’ai pas besoin de me maquiller pour aller au travail! Ma...

Kelledstyle Blog

2 years ago

J’ai testé quelques produits de la gamme Radiance qui sont formulés à base d’abricot et j’ai été très satisfaite des résultats. Mon teint est radieux et j’ai beaucoup apprécié la texture des produits. J’ai utilisé le sérum et le masque pour le...

Marylou St-pierre

11 months ago

J'adore leurs produits, mais par dessus tout, l'accompagnement personnalisé. Les conseils et les produits sont toujours adaptés! J'apprécie particulièrement la gamme radiance et l'exfoliant en poudre! Top choix pour moi!

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Featured ingredients

HIGH MOLECULAR WEIGHT HYALURONIC ACID

Hydrates and plumps the skin.

HYALURONIC ACID LOW MOLECULAR WEIGHT

Hydrates and improves firmness.

FRAGMENTED HYALURONIC ACID

Multilayer hydration with a plumping action.

FILLING SPHERES

Fills in deep lines and hydrate long lastingly.

Composition +

INGREDIENTS : • WATER • PROPANEDIOL • ISOSTEARYL NEOPENTANOATE • ISONONYL ISONONANOATE • PANTHENOL • LAURYL PEG/PPG-18/18 METHICONE • OCTYLDODECANOL • GLYCERIN • ETHYLHEXYL PALMITATE • UNDECANE • XYLITYLGLUCOSIDE • ANHYDROXYLITOL • OCTYLDODECYL XYLOSIDE • PEG-30 DIPOLYHYDROXYSTEARATE • TRIDECANE • SODIUM HYALURONATE • CHONDRUS CRISPUS POWDER • POLYMETHYLSILSESQUIOXANE • POTASSIUM PHOSPHATE • ETHYLHEXYLGLYCERIN • XYLITOL • HYDROXYETHYL ACRYLATE/SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER • FRAGRANCE (PARFUM) • ISOSTEARYL ALCOHOL • PHENYLPROPANOL • AGAR •TRIHYDROXYSTEARIN • POLYSORBATE 60 • SORBITAN ISOSTEARATE • XYLOSE • HEXYL LAURATE • TOCOPHEROL • POLYSORBATE 20 • SORBITAN TRIOLEATE

Testimonials

Our goal is to provide you with quality customer service that is as personalized as our products!

5.0
2 review(s)

Chanel Doye

Verified purchase

08/05/2025

Excellent sérum

Excellent sérum! Il est riche, mais peur etre utilisé même en été si combiné avec une crème légère

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Olivia C.

Verified purchase

08/22/2024

Meilleur sérum hydratant que j'ai essayé

La texture est incroyable, fluide et fondante dans la peau, j'adore! J'utilise ce sérum surtout quand je travailles, je suis hôtesse de l'air et les voyages en avion sont tellement déshydratant pour ma peau et ce sérum est mon sauveur. Je l'utilise aussi à la maison aux changements de saisons, car ma peau devient très déshydratée. Ce sérum en combinaison avec le gommage resurfaçant ont empêché que ma peau deviennent ''flacky'' et texturé l'hiver passé et ce printemps.

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Frequent questions

A doubt? A question? Our experts answer you

Why choose Académie Group products?

What sets Académie Scientifique de Beauté apart is simple — over 130 years of scientific excellence, fused with French elegance and a deep respect for your skin and the planet. Every formula is developed in-house, backed by dermatological research, and crafted with clean, traceable ingredients. You're not just choosing skincare — you're choosing proven results, sustainable luxury, and personalized care. While others mass-produce, we customize. While others follow trends, we lead with innovation. When you choose Académie, you’re choosing visible results and invisible compromise.

How long can I keep my product once opened?

On the packaging of each product, you'll find an icon in the shape of an open jar. This is the shelf life after opening, given that the product is kept in a cool, dry place: ‘'9M’' corresponds to 9 months, ‘'12M’' to 12 months, and so on.

I am a journalist/blogger and I would like to get in touch with your company. How should I do?

Thank you for your interest in our brand, and we invite you to write us an email at [email protected]. Our PR service will contact you as soon as possible.