Definitive

Definitive Hyaluron Activator Serum

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A sophisticated hydrating serum engineered with a growth-factor complex to initiate regenerative responses, delivering a profoundly hydrated and supple complexion. Experience the luxurious, multi-layered hydration of five molecular weights of Hyaluronic Acid, each carefully selected to rejuvenate and enhance the skin's natural radiance, restoring a firmer, more radiant finish.

$33050ml (1.7oz)

FocusHydration, Density & Volume, Longevity & Prevention, Balance & Clarity

ShippingComplimentary US shipping from $100.

The Definitive Collection

Engineered for hydration, density, and barrier reinforcement. Every compound at clinical concentration, in a delivery system designed for that specific formula. Made in Germany.

How AUTEUR formulates

Key actives

The Formulation

Epidermal Growth Factor Complex

Activates skin regeneration and supports collagen, elastin, and hyaluronic acid production to visibly improve firmness, density, and elasticity.

Collagen-Organising Tetrapeptide

Optimises collagen network formation for a smoother, firmer appearance and enhanced structural resilience.

Scandinavian Red Algae

Supports natural hyaluronic acid production to visibly plump and smooth deep lines.

Hyaluronic Complex

Multi-molecular blend of five micro-low to high molecular weights of hyaluronic acid, providing deep, long-lasting hydration while supporting skin elasticity.

Allantoin

Calms and hydrates the skin while supporting cell renewal, reducing irritation, and revealing a smoother texture.

Peony Root Extract

Brightening and anti-inflammatory super antioxidant that reduces hyperpigmentation and restores a more even, radiant skin tone.

AUTEUR Hyaluron Activator Serum editorial lifestyle

The ritual

How to use

When

Morning and/or evening
May be used twice daily

How

Apply 1 pump to the face, and an additional pump to the neck and décolleté
Allow to absorb fully before following with your favourite AUTEUR cream

Expert guidance

Universally hydrates all skin types and balances moisture levels
May be used with LED light therapy and Microcurrent for optimised results
Safe for blemish-prone and sensitive skin

Add to bag · $330 The full application guide

Full list

Ingredients

Full ingredient list

Aqua/Water, Pentylene Glycol, Sodium Lactate, Sodium PCA, Urea, Xanthan Gum, Lactic Acid, Sodium Hyaluronate, Butylene Glycol, Allantoin, Alpinia Galanga Extract, Sodium Acetylated Hyaluronate, Caprylic/Capric Triglyceride, Caprylyl Glycol, Sodium Hyaluronate Crosspolymer, Acetyl Glutamine, Lecithin, Tripeptide-10 Citrulline, Hydrolyzed Sodium Hyaluronate, Magnolia Officinalis Bark Extract, Paeonia Lactiflora Root Extract, 1,2 Hexanediol, Bacillus/Folic Acid Ferment Extract, sh-Oligopeptide-1, sh-Oligopeptide-2, shPolypeptide-1, sh-Polypeptide-11, sh- Polypeptide-9

Definitive Hyaluron Activator Serum

The Formulation

How to use

Ingredients

Reviews