Firm Serum is a peptide firming serum designed to smooth the appearance of fine lines and promote a firmer, more refreshed-looking complexion. Its lightweight, oil-free texture absorbs quickly, leaving skin feeling hydrated and comfortable without a greasy finish.

The formula combines Palmitoyl Tetrapeptide-7 and Palmitoyl Tripeptide-1 with cucumber seed extract, glycerin and targeted skin-conditioning ingredients. Together, these ingredients support a smoother-looking complexion while helping maintain skin hydration. Chrysin and N-Hydroxysuccinimide complement the peptide blend in a formula designed to address the appearance of under-eye puffiness and dark circles. Fragrance-free, vegan and paraben-free, this daily serum fits naturally into both morning and evening skincare routines. Made in North America and packaged in recyclable materials, Posh Lana Firm Serum brings purposeful ingredients and practical skincare together.

Key actives

• Palmitoyl Tetrapeptide-7: A peptide used in skincare formulations targeting the appearance of fine lines and visible signs of aging.

• Palmitoyl Tripeptide-1: A skin-conditioning peptide that supports a smoother, firmer-looking appearance.

• Cucumber Seed Extract: Helps condition the skin and contributes to a refreshed-looking complexion.

• N-Hydroxysuccinimide: An ingredient commonly used in formulations targeting the appearance of under-eye discoloration.

• Chrysin: A cosmetic ingredient used in formulations targeting the appearance of dark circles.

• Glycerin: A humectant that attracts and helps retain moisture.

• Propanediol: Helps maintain moisture and supports the formula's lightweight texture.

Full ingredient list

Aqua (Water), Glycerin, Propanediol, Carbomer, Potassium Hydroxide, Steareth-20, Cucumis Sativus (Cucumber) Seed Extract, N-Hydroxysuccinimide, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1, Chrysin, 1-2 Hexanediol, Caprylhydroxamic Acid, Sodium Gluconate

• Skin type: All skin types, including sensitive skin.
• Concern: Visible fine lines, puffiness, dark circles and loss of skin firmness.
• Best suited to: Those seeking a lightweight peptide serum to support smoother, firmer and more refreshed-looking skin.

1. Begin with clean, dry skin.
2. Apply a small amount of Firm Serum to your fingertips.
3. Gently massage over the desired areas of the face.
4. Allow the serum to absorb completely.
5. Follow with your preferred moisturizer. In the morning, finish with broad-spectrum SPF 30 or higher.

Patch test: Test on a small area before first use and monitor for irritation over 24 hours.

Sun protection: Apply broad-spectrum SPF 30 or higher as the final step of your morning skincare routine.

When to us

Both AM and PM.

• Morning: Apply after cleansing and before moisturizer and sunscreen.
• Evening: Apply after cleansing and before your nighttime moisturizer.

When not to use:

• Avoid direct contact with the eyes.
• Do not apply to broken or irritated skin.
• Discontinue use if irritation occurs.

Free Shipping: On all orders.

Processing Time: 1–2 business days.

Estimated Delivery: USA: 3–5 business days | International: 6–11 business days.

Returns & Refunds

Final Sale: Due to hygiene and safety considerations, beauty and personal care products are non-returnable and non-exchangeable.

Damaged, Defective or Missing Orders: If your order arrives damaged, defective, is lost, or never arrives, contact us within 7 days of delivery (or expected delivery). 

We will review the issue and arrange an appropriate replacement or refund.

This policy does not limit your rights under applicable consumer protection laws.