Elixir The Serum AA 50ml - anti-aging Japanese serum for wrinkles and firmness

Elixir The Serum aa 50ml

$93.80
$93.80 $96.16
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Elixir The Serum AA 50ml - anti-aging Japanese serum for wrinkles and firmness
Elixir The Serum aa 50ml
Elixir

Elixir The Serum aa 50ml

$93.80
$93.80 $96.16
In stock
  • ✅ Medicated quasi-drug with proven efficacy testing
  • ✅ Coreximide targets basement membrane firmness
  • ✅ Tranexamic acid suppresses dark spot formation
  • ✅ 21 beauty ingredients in one serum step
  • ✅ Fast-absorbing — effective even in minimal routines
  • ✅ Free from parabens and added colorants

🛡️ 100% Authentic – Japan domestic version
🚚 Ships from Tokyo
✨ Delivery in 4-6 business days

Description

Elixir The Serum aa 50ml is a quasi-drug medicated beauty serum for mature skin with simultaneous concerns of dryness-related wrinkles, dark spots, and firmness decline — using Coreximide (Shiseido's proprietary peptide that works at the basement membrane level) and Tranexamic Acid in a single serum that replaces multiple specialist products. Developed under Shiseido's Elixir research with 21 beauty ingredients formulated to address multiple aging signs in one daily application.

  • Coreximide (Hydroxyethylethyleneurea) — Shiseido-exclusive active that targets the skin's basement membrane to restore foundational firmness and density
  • Tranexamic Acid — quasi-drug certified brightening active that suppresses melanin production at the prostaglandin signal level
  • 21 beauty ingredients — comprehensive formulation including hyaluronic acid, collagen, ceramide, and botanical extracts in one serum
  • Fast-absorbing milky serum texture — penetrates quickly even on days when a full multi-step routine is abbreviated
  • 50ml pump — generous size for a prestige quasi-drug serum; approximately 2–3 months of twice-daily use
  • Japan-domestic quasi-drug classification — regulated efficacy standards beyond standard cosmetic serums

How it works: Coreximide operates at the dermal-epidermal junction — the basement membrane that anchors the epidermis to the dermis. This junction weakens with age, causing the epidermis to lose its structural anchorage and creating the "drooping" quality of aging skin. Coreximide supports the proteins that maintain basement membrane integrity — a different approach from surface-applied peptides or collagen that cannot reach this structural layer. Combined with Tranexamic Acid for brightening, the serum addresses both structural and pigmentary aging simultaneously.

Elixir The Serum aa vs standard anti-aging serums: The Coreximide basement membrane target is the functional differentiator — it addresses a structural level that most serums do not reach. For mature skin where surface-applied serums have plateaued in their visible effect, The Serum aa's basement membrane approach represents a mechanistically different intervention. The quasi-drug status means Tranexamic Acid is regulated at efficacy levels above cosmetic brightening serums.

Known in Japan as エリクシール シュペリエル ザ セラム ａａ 50mL.

Key Ingredients
  • Coreximide (Hydroxyethylethyleneurea) — Shiseido's proprietary active that works at the basement membrane level to help restore the skin's foundational firmness and density
  • Tranexamic Acid (Medicated Active) — suppresses melanin generation at the source, reducing dark spots and improving overall clarity over time
  • High-Concentration Water-Soluble Collagen — delivers a cushioned, plump skin feel and supports visible reduction in fine surface lines
  • Watercress Extract — a select botanical that contributes to skin conditioning and overall tone clarity
  • Glycerin Complex — multi-functional humectant base that aids rapid absorption of the full ingredient payload

HOW TO USE
  1. After applying toner, dispense two pumps into the palm.
  2. Spread across the face starting from the cheeks, working upward toward the eyes and forehead.
  3. Use morning and night before emulsion or cream.
  4. Follow with emulsion and, if desired, Elixir Advanced Emulsion or a night cream for additional moisture.
  5. Pro tip: When using in the morning, always follow with SPF — tranexamic acid efficacy is best preserved when UV exposure is controlled.

FAQ

What makes this a medicated (quasi-drug) serum?

In Japan, quasi-drug (医薬部外品) status means the product contains active ingredients — here tranexamic acid for whitening — that have undergone regulated efficacy testing. This is a higher standard than standard cosmetics and gives greater confidence in the whitening and wrinkle-related claims.

How does Coreximide work?

Coreximide is a compound developed through Shiseido's research into the skin's basement membrane — the structural layer between the epidermis and dermis. By supporting this layer, the ingredient helps skin recover its ability to hold its own shape and firmness over time, rather than addressing only surface texture.

Can I use this with retinol products?

Yes, this serum can be layered in the same routine as retinol. Apply this serum first after toner, then follow with retinol-based treatment if using one. Both morning and evening use is supported.

Is this the Japan-domestic version?

Yes. TokyoShelf sources directly from Matsumotokiyoshi and authorised Japanese drugstores. This is the Japan-domestic formula carrying the quasi-drug designation — the same version sold at pharmacies across Japan.

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