NEW
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new-release
5.0 , 9 reviews
New

Definitive Line Serum

Targeted wrinkle treatment

Ein hochaktives Serum zur Straffung der Haut enthüllt straffere, glattere Haut und reduziert Oberflächenlinien und Falten. Erleben Sie ein anspruchsvolles Serum, das die glättenden und straffenden Effekte kosmetischer chirurgischer Behandlungen von Linien und Falten durch topische Anwendung nachahmt. Das wirksame SYN®-AKE Peptid und unterstützende Wirkstoffe arbeiten zusammen, um Linien auf der Hautoberfläche zu straffen und zu glätten, sofort. Intelligente Neurotransmitter-hemmende Peptide entspannen tieferliegende Mikromuskeln, um horizontale und laterale Linien freizusetzen, zu glätten und anzuheben, während sie die natürliche Kollagensynthese unterstützen und die Bildung weiterer Falten verhindern.

Größe:

Features

Features

Cellular Renewal
40
4/10
Collagen Support
40
4/10
Firmness & Elasticity
70
7/10
Hydration
20
2/10
Texture Refinement
50
5/10
Line & Wrinkle Reduction
70
7/10
Immediate Lift & Tightening
90
9/10
Antioxidant Protection
50
5/10

Active Ingredients

Active Ingredients

SYN®-AKE Peptide

Precision peptide that visibly relaxes expression lines, revealing firmer, smoother skin with an immediate tightening effect.

Arginine Ferulate

Strengthens skin resilience, calms visible irritation, and defends against environmental stressors for a smoother, more balanced complexion.

Ergothioneine

Powerful antioxidant that reverses photoageing and cellular damage caused by UVA, UVB, and oxidative stress.

Liftiss®

Delivers an instant lifting and firming effect while improving water flow within the skin for enhanced definition and radiance.

Resveratrol

Neutralises environmental damage, strengthens the barrier, and enhances radiance with a potent antioxidant effect.

Ectoin

A multifunctional extremolyte that protects skin from environmental stress, locks in hydration, and reduces visible inflammation.

All the ingredients

Water/Aqua, Alcohol Denat., Glycerin, Pentylene Glycol, Pullulan, Adansonia Digitata Pulp Extract, Maltodextrin, Saccharide Isomerate, Xanthan Gum, Propylene Glycol, Butylene Glycol, Alcohol, Ectoin, Lecithin, Citrullus Lanatus Fruit Extract, Plankton Extract, Prunus Persica Leaf Extract, Resveratrol, Sodium Tocopheryl Phosphate, Mannitol, Sodium Hyaluronate, Sodium Acetylated Hyaluronate, Citric Acid, Sodium Citrate, Arginine Ferulate, Sodium Hyaluronate Crosspolymer, Ascorbic Acid, Hydrolyzed Sodium Hyaluronate, Prunus Idaeus Fruit Extract, Pyrus Malus Fruit Extract, Magnolia Officinalis Bark Extract, Paeonia Lactiflora Root Extract, Ergothioneine, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Lycopene, Leuconostoc/Radish Root Ferment Filtrate.

How to use

How to use

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Discover transformative
active ingredients

Experience the age-defying power of intelligent phytoactive Bioplasma FA, as it enhances skin's detoxification capabilities, stimulates cellular metabolism, and reduces wrinkle depth.

  • SYN®-AKE Peptide

    How it works

    A precision peptide that visibly relaxes expression lines, revealing firmer, smoother skin with an immediate tightening effect.

  • Arginine Ferulate

    How it works

    Strengthens skin resilience, calms visible irritation, and defends against environmental stressors for a smoother, more balanced complexion.

  • Ergothioneine

    How it works

    A powerful antioxidant that reduces photoageing and cellular damage caused by UVA, UVB, and oxidative stress.

  • Liftiss

    How it works

    Delivers an instant lifting and firming effect while improving water flow within the skin for enhanced definition and radiance.

  • Resveratrol

    How it works

    Neutralises environmental damage, strengthens the barrier, and enhances radiance with a potent antioxidant effect.

  • Ectoin

    How it works

    A multifunctional extremolyte that protects skin from environmental stress, locks in hydration, and reduces visible inflammation.

Discover transformative
active ingredients

Experience the age-defying power of intelligent phytoactive Bioplasma FA, as it enhances skin's detoxification capabilities, stimulates cellular metabolism, and reduces wrinkle depth.

SYN®-AKE Peptide

How it works

A precision peptide that visibly relaxes expression lines, revealing firmer, smoother skin with an immediate tightening effect.

Arginine Ferulate

How it works

Strengthens skin resilience, calms visible irritation, and defends against environmental stressors for a smoother, more balanced complexion.

Ergothioneine

How it works

A powerful antioxidant that reduces photoageing and cellular damage caused by UVA, UVB, and oxidative stress.

Liftiss

How it works

Delivers an instant lifting and firming effect while improving water flow within the skin for enhanced definition and radiance.

Resveratrol

How it works

Neutralises environmental damage, strengthens the barrier, and enhances radiance with a potent antioxidant effect.

Ectoin

How it works

A multifunctional extremolyte that protects skin from environmental stress, locks in hydration, and reduces visible inflammation.

The potent skin-smoothing serum for minimising fine lines and wrinkles. A harmony of advanced peptide technology and naturally derived ingredients. A firmer, more even skin finish, with facial contours refined.

Experience high-performance topical wrinkle reduction with neurotransmitter peptide technology

Within this serum, intelligent neurotransmitter-inhibiting peptides relax deep-lying micro-muscles to release, smooth and lift horizontal and lateral lines while supporting natural collagen synthesis, preventing further wrinkle formation.

01

Reduces the appearance of lines

SYN®-AKE blocks the neuromuscular signaling that creates muscular contractions on skin's surface

02

Decreases the depth of wrinkles

Skin’s detoxification abilities are enhanced and cellular metabolism stimulated by Bioplasma FA

03

Repairs signs of damage and reinforces cellular functions

Further skin damage is prevented and skin barrier functions boosted by high-performance antioxidants

Experience high-performance topical wrinkle reduction with neurotransmitter peptide technology

Within this serum, intelligent neurotransmitter-inhibiting peptides relax deep-lying micro-muscles to release, smooth and lift horizontal and lateral lines while supporting natural collagen synthesis, preventing further wrinkle formation.

Definitive Collection
Serum Finder

Composition No. 1
Renewal Serum
Line Serum
Retinol Serum
Hyaluron Activator
Collagen Activator
Light Hydration
Intensive Hydration
Advanced Wrinkle Repair
Brightens and Evens Tone
Refines Texture
Antioxidant Protection
Promotes Collagen Regeneration
Contains Retinol
Liquid Oxygen Complex
Myo-relaxant Peptides (instantly reduce surface lines)

Explore how to use

Definitive Line Serum

Editorial Features

Mature Skin Secrets from JLo’s Facialist

Collagen decline is one of the most visible signs of aging, and addressing it requires consistency. During my facial, my facialist layered the Auteur Definitive Line Serum ($390), which combines bioengineered peptides and antioxidants to smooth fine lines and firm skin.

read article

AUTEUR is the skincare brand the experts are watching

“The German skincare brand, beloved by aestheticians, activates your skin’s own best function and appearance . Featuring over 100 active ingredients from around the world, all working in synchrony to accelerate cellular repair, German skincare brand AUTEUR is delivering next level results with its product line. Its encapsulated peptide delivery systems offer enhanced bioavailability and repair capabilities and lower weight molecular densities for better ingredient absorption.”

read article

If You Like Glowy, Dewy Skin, This Ultra-Luxe Brand Is Your New Secret Weapon

“I always approach luxury beauty with a healthy dose of skepticism. As a beauty editor with years of experience, I can still only count on one hand the number of high-end brands I use and love. While many provide some benefits, I don't always think it's enough to justify an insanely high price tag. In this case, however, I can say that aesthetician-loved brand Auteur is well worth the money.”

read article

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Schedule a consultation with our expert who will find the right routine skincare for you.

The Definitive
Collection

High-active compositions elevating regenerative skincare to an art form - and your deepest authentic beauty to the surface

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Definitive Enzyme Cleanser
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Brightening and exfoliating treatment

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Definitive Eye Cream
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Multi-faceted eye renewal treatment

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Definitive Neck and Décolleté Cream
Regular price $340.00
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Rich cream for restoration and repair

NEU
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Definitive Renewal Serum
Regular price $390.00
Regular price Sale price $390.00

Feuchtigkeitsspendendes Serum mit epidermalem Wachstumsfaktor

FAQ

How should I apply Line Serum for best results?

Line Serum should be applied to perfectly clean, dry skin. We recommend using an oil-free cleanser that rinses completely clean (such as Definitive Enzyme Cleanser or Cleansing Complex) to prime the skin. Apply sparingly—usually ½ pump is sufficient for the face - avoiding the hairline, eyebrows, and neck. Smooth gently across targeted areas where lines are most visible.

Why does the serum sometimes feel tight or slightly tacky?

This effect is intentional. Botanical extracts within the formula create an invisible mesh over the skin’s surface, holding it taut while peptides work beneath to relax expression lines. As the serum absorbs, skin will feel progressively smoother and more refined as skin becomes dry to the touch.

Will Line Serum replace a hydration-focused serum?

While not designed as a primary hydrating serum, Line Serum does contain Hyaluronic Acid that restores hydration and plumps fine dehydration lines. For deeper, long-term hydration, it layers beautifully paired under Renewal Serum, Hyaluron Activator Serum, or Collagen Activator Serum as a first step.

How does Line Serum work to improve wrinkles?

Neurotransmitter peptides like SYN®-AKE block the signaling that causes facial micro-contractions. This relaxes expression lines - such as crow’s feet or forehead creases - while supporting natural collagen production. Botanical extracts form an invisible net across the skin’s surface, providing an immediate taut, lifted appearance while peptides and antioxidants work on a deeper level.

Does it replace cosmetic procedures?

While not a substitute for medical treatments, Line Serum is designed as a non-invasive alternative to line-smoothing procedures - delivering visible results through precision-engineered peptide and antioxidant technology. As it does ease topical lines and wrinkles, it may extend the lifespan and benefits of in-office injectibles.

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Definitive Line Serum

Targeted wrinkle treatment

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