Hydrabio Hyalu+ serum

The 1st self-rehydrating replumping ecobiological serum.


Dehydrated sensitive skin

Hyalu+ Technology

For who?


What ingredients?

View its composition

Proven efficacy

+60% hydration in 30 minutes (1) Skin is plumped: 94% (2)

Rehydrates & replumps immediately & lastingly

Reduces visible signs of aging

Strengthens the skin barrier 

Protects from oxidative stress 

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All BIODERMA products are formulated according to the ecobiology principles, which is at the heart of NAOS' approach to respect the skin's ecosystem and preserve its health in a lasting way.

Inspired by the pioneering NAOS approach of ecobiology, and thanks to its understanding of the biological dysfunction responsible for dehydration, Hydrabio Hyalu+ serum empowers the skin to reactivate its natural hydration mechanisms and retain the water essential to its balance.

The complementary action of rightly dosed active ingredients: biomimetic low molecular weight (LMW) Hyaluronic Acid, Niacinamide, Carnosine and the Hyalu+ Technology (combination of biomimetic, high molecular weight (HMW) Hyaluronic Acid and a self-rehydrating sugar) act on the internal causes of dehydration and the visible signs of aging, to provide lasting effectiveness.

An immediate moisturising and plumping action: HMW Hyaluronic Acid which creates a film on the surface, preventing the water loss, plus a new self-rehydrating sugar that helps skin synthetize and preserve Hyaluronic Acid.

A toning action using LMW Hyaluronic Acid, which helps to stimulate collagen to gain in fimness and elasticity.

A strengthening action using Niacinamide, which consolidates the barrier function to reduce dehydration. 


Apply about 5 drops morning and/or evening directly to the face and neck after cleansing with a Hydrabio hygiene product.

  • Step 1 Cleanse your skin ideally with a Hydrabio hygiene product
  • Step 2 Cleanse your skin ideally with a Hydrabio hygiene product
  • Step 3 Gently massage until absorbed
  • Step 4 Apply your daily Hydrabio Crème or Gel-crème

Eco-design of our products: Every day, we work on the improvement of our products to minimise their environmental impact. Most of our products are made of 100% recyclable plastic and all our outer boxes are 100% recyclable and made of paper from sustainably managed forests. Sorting instructions: Please refer to local sorting instructions to recycle your product properly.

Dehydration is a transitory state for skin, which all skin types can experience (normal, mixed, dry, oily). Environmental stressors (UV rays, air conditioning, pollution, sudden changes in temperature, cold, wind…) can dehydrate the skin and alter its barrier function, which weakens it and increases water loss. Over time, the natural aging processes also change the quantity and quality of hyaluronic acid in skin. And yet, this ‘sponge’ molecule, able to hold up to 1,000 times its weight in water, is key to hydration. When less is stored, skin is dehydrated.

Tested under dermatological control

After 28 days :

Skin is plumped: 94% (2B)

+20% of skin density (2A)

+32% of skin firmness (2A)

+21% of skin elasticity  (2A)

+25% of complexion radiance (2A)

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This product has been formulated according to the ecobiological approach of the NAOS Laboratories to take care of you. At the heart of this product :

HYALU+ Technology combines a high-molecular-weight hyaluronic acid for immediate and intense surface hydration and a self-rehydrating sugar to boost hyaluronic acid synthesis and protect its life cycle.

See the list of ingredients