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Signal Theory Serum

Advanced Peptide Complex for Visible Smoothing + Firmness

$38.00

Out of stock

Your skin needs the right signals.

This multi-layered peptide serum is designed to visibly soften expression lines, support skin structure, and improve overall smoothness—without heaviness, irritation, or unnecessary filler.

Formulated with a concentrated blend of next-generation peptides, barrier-supporting hydrators, and tone-refining actives, it works with your skin - not against it - to create a more refined, resilient appearance over time.

What it does

  • Visibly softens the look of expression lines

  • Improves skin smoothness and elasticity

  • Supports long-term firmness and structure

  • Enhances hydration without weight or residue

  • Helps refine uneven tone and texture

Key Ingredients

  • Multi-Peptide Complex (Argireline® + SNAP-8 + Matrixyl® 3000 + Uplevity™)
    Targets the appearance of dynamic lines and supports collagen signaling for smoother, firmer-looking skin

  • N-Acetyl Glucosamine (NAG) + Niacinamide
    A strategic pairing that helps refine tone, support barrier function, and improve overall skin clarity

  • Beta-Glucan + Panthenol
    Calm, hydrate, and reinforce the skin barrier while reducing visible irritation

  • Hyaluronic Acid (multi-level hydration)
    Draws in and retains moisture for a plump, smooth finish

  • Propanediol + Glycerin
    Enhance hydration delivery and improve overall skin feel

  • Sodium Phytate
    Supports formula stability and skin compatibility

Texture + Experience

A lightweight, cushiony gel-serum that absorbs cleanly.
Layers effortlessly under moisturizer and SPF.

How to use

Apply 1–2 pumps to clean skin in the morning. Apply after toners and light serums. Let dry down and follow with moisturizer and SPF.

Aqua, Propanediol, Acetyl Hexapeptide-8 (Argireline), Niacinamide, Glycerin, Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7 (Matrixyl 3000), Dipeptide Diaminobutyroyl Benzylamide Diacetate (SN-KE), Panthenol, N-Acetyl Glucosamine, Sodium Hyaluronate, Acetyl Tetrapeptide-2, Beta-Glucan, Hydroxyethylcellulose, Sodium Phytate, Phenoxyethanol, Ethylhexylglycerin