Auteur Definitive Line Serum

Results you can see on application.

 

Most serums ask for weeks of patience before showing results. Definitive Line Serum delivers both: an immediate visible smoothing and tightening effect from the first application, and a compounding collagen-building action that improves skin enduringly over time.

Benefits:

• Target and smooth lines
• Improve facial contours
• Restore a rested appearance
• Instant tightening effect
• Repair signs of oxidative damage

Dual-Action Performance:

On Application:

Instant smoothing and tightening of horizontal and lateral surface lines

Over Time:

Sustained collagen production and enduring skin smoothness

What It Addresses:

• Smoother-Horizontal and lateral surface lines visibly smoothed on application and over time.

• Tighter-Skin tightening and lifting effect from the first use. Improves structurally with continued application.
• Hydrated-Deep, thorough hydration at every skin depth. A rested, plumped appearance that endures.

Beyond Cleansing:

• Dissolves pollution, makeup, and excess oils completely
• Delivers unparalleled hydration and nourishment during the cleanse
• Elevates the skin's own regenerative abilities
• Supports skin cell longevity with every use

The Formulation: At the core of this serum is SYN®-AKE Peptide, regarded as the industry benchmark for collagen production and topical skin tightening. It mimics the smoothing effects of cosmetic-surgical procedures through topical application alone. In collaboration with Cyclopeptide-5, it tightens and smooths lines both horizontally and laterally from first contact. A unique complex of multi-molecular weight Hyaluronic Acids ensures hydration reaches every depth of the skin, while Vitamin E and Resveratrol neutralise oxidative damage at the surface.

Generous. Potent. Immediately visible.

A uniquely generous serum texture that delivers a high concentration of actives in every application. Skin feels smoother, more taut, and noticeably more rested from first use. Enduring smoothness builds with consistent application.

• SYN®-AKE Peptide: The industry benchmark for topical collagen production and skin tightening. Mimics the smoothing and lifting effects of cosmetic-surgical procedures through topical application. Delivers visible line reduction on contact and builds structural improvement over time.
• Cyclopeptide-5 Works in concert with SYN®-AKE to tighten and smooth both horizontal and lateral surface lines instantly. Amplifies the immediate visible effect of the peptide complex.
• Multi-Molecular Hyaluronic Acid Complex: A unique blend of Hyaluronic Acids at varying molecular weights ensures hydration is delivered at every depth of the skin. Surface plumping is immediate; deep structural hydration builds with continued use.
• Vitamin E and Resveratrol: A dual antioxidant defence that neutralises free radical damage and reduces visible signs of environmental stress. Protects collagen already present from oxidative breakdown.

Visible results:

Fuller: Amplified plumping effect. Volume restored through collagen activation and deep hydration.

Smoother: Dryness and fine lines eliminated. A visibly refined lip surface and contour.

Defined: Structural tissue restored. Lip contour more articulated with consistent use.

How to use:

Use in the morning as a spot treatment for expression lines, and in the evening as an all-over treatment for face and neck.

Apply to cleansed, toned, dry skin—1 pump on lines in the AM, 1–2 pumps over face and neck in the PM, allowing it to dry before other steps.

Layer under Collagen Activator or Renewal Serum in the morning and under Retinol Serum at night; avoid cream/oil cleansers, eyebrows, and hairline, and may be paired with LED for enhanced results.

Shipping Policy

We unfortunately do not offer Free Shipping, because we offer the best prices and the best premium gifts with purchase.

Below we show our current shipping prices along with delivery times. These prices and delivery times may be affected during the holidays.

Expedited Shipping (Delivered with in 1-4 Working Days)$7.99 USDExpress 2 Day Air (1 - 2 Business Days)$12.99 USDStandard Delivery (Delivered within 4-7 Working Days)$5.99 USDVIP Expedited (1 - 3 Business Days)$8.99 USD

Returns Policy

To process your return, a link will be provided, that will walk you through the step by step instructions on how to proceed the Return.

We'll process your return within two weeks and issue a store credit, or exchange. If you have any questions, please reach out to our customer service team through your account. Note that we reserve the right to deny any return requests store credit if we suspect the policy or program was abused.

We understand that receiving a damaged package can be disappointing, but please note that if the product inside is still functional, we unfortunately cannot offer a resolution. Transit can be unpredictable and these types of incidents are beyond our control.

Read More about our Return Policy Here