6 Best Serums for Smile Lines in 2026

Skincare used to mean heavy creams that sat on your face like a mask. Today, we rely on thin, targeted liquids that actually absorb into the skin.

These formulas focus on specific cellular pathways to soften those stubborn creases around your mouth. Finding the best serums for smile lines is about matching ingredients to your skin's unique needs. Keep reading to see how these options compare.

Key Takeaways

  • Prioritize peptide-based formulas if you want to support your natural collagen production over time.
  • Always check the concentration of active ingredients like retinol or niacinamide to gauge overall potency.
  • Consider your skin sensitivity since high-strength retinoids can cause dryness or irritation during the first few weeks.
  • Look for hydrating components like hyaluronic acid to plump the skin and physically fill out fine lines temporarily.
  • Match the serum texture to your routine: thicker liquids work well alone, while watery ones layer best under moisturizer.

Our Top Best Serums For Smile Lines Picks

Targeted Expression Relaxer The Ordinary Argireline Solution 10% The Ordinary Argireline Solution 10% Lightweight water-based texture Focuses on expression lines Non-greasy application View on Amazon Read Review
Deep Crease Specialist No7 Laboratories Line Correcting Booster No7 Laboratories Line Correcting Booster High-potency peptide blend Targets deep-set wrinkles Improves skin firmness View on Amazon Read Review
Classic Retinoid Powerhouse RoC Retinol Correxion Deep Serum RoC Retinol Correxion Deep Serum Contains effective retinol Brightens dark spots Clinically studied results View on Amazon Read Review
Hydration Layering Essential The Ordinary Matrixyl 10% Serum The Ordinary Matrixyl 10% Serum Plumps skin surface Boosts elasticity Simple, clean ingredients View on Amazon Read Review
Advanced Korean Firming Medicube NAD EGF Firming Serum Medicube NAD EGF Firming Serum Supports skin elasticity Contains growth factors Great for neck skin View on Amazon Read Review
Gentle Overnight Resurfacer Meditherapy Retinal Skin Booster Meditherapy Retinal Skin Booster Contains powerful retinaldehyde Soothes with cica Calms skin redness View on Amazon Read Review

More Details on Our Top Picks

  1. The Ordinary Argireline Solution 10%

    The Ordinary Argireline Solution 10%

    Targeted Expression Relaxer

    View on Amazon

    Think of this serum like a gentle muscle relaxant for your face. It is specifically designed for people who notice that their smile lines become more pronounced when they make repeated facial expressions.

    The formula relies on a high concentration of acetyl hexapeptide-8 to target the skin around the mouth. Just remember that it works best on dynamic lines, so it might not be the right choice if you are looking for deep structural filling.

    • Brand:The Ordinary
    • Main Ingredient:Argireline
    • Product Type:Peptide serum
    • Volume:1 Fl Oz
    • Key Benefit:Reduces dynamic wrinkles
    • Skin Suitability:All skin types
    • Additional Feature:Oil-free liquid formula
    • Additional Feature:Vegan and cruelty-free
    • Additional Feature:Simple daily application
  2. No7 Laboratories Line Correcting Booster

    No7 Laboratories Line Correcting Booster

    Deep Crease Specialist

    View on Amazon

    This serum is built for those who want a concentrated treatment specifically for those stubborn, etched-in lines. It uses a potent blend of peptides to signal your skin to behave in a younger, more resilient way.

    The texture is thick enough to feel like it is providing real hydration while it works. It is quite strong, so you should introduce it slowly to your routine to make sure your skin stays happy.

    • Brand:No7
    • Main Ingredient:Collagen peptides
    • Product Type:Booster serum
    • Volume:15 ml
    • Key Benefit:Visible wrinkle reduction
    • Skin Suitability:All aging skin
    • Additional Feature:Precision applicator tip
    • Additional Feature:Concentrated formula
    • Additional Feature:Moisturizing properties
  3. RoC Retinol Correxion Deep Serum

    RoC Retinol Correxion Deep Serum

    Classic Retinoid Powerhouse

    View on Amazon

    If you want a proven industry standard for smoothing out texture, this is your go-to. By combining retinol with Vitamin C, it addresses both the depth of smile lines and the uneven tone that often accompanies them.

    Because it is a high-performance retinol, you must pair it with a good sunscreen during the day. It is excellent for fading post-acne marks while you work on those laugh lines.

    • Brand:RoC
    • Main Ingredient:Retinol and Ascorbic acid
    • Product Type:Anti-aging serum
    • Volume:1 Oz
    • Key Benefit:Deep wrinkle repair
    • Skin Suitability:Aging skin types
    • Additional Feature:Dermatologist-vetted formula
    • Additional Feature:Addresses skin discoloration
    • Additional Feature:Fast-absorbing texture
  4. The Ordinary Matrixyl 10% Serum

    The Ordinary Matrixyl 10% Serum

    Hydration Layering Essential

    View on Amazon

    This serum acts as a structural support system for your skin. It uses Matrixyl to encourage a firmer appearance while hyaluronic acid pulls moisture into the surface to plump up those fine smile lines immediately.

    It is a fantastic option if you prefer a minimalist skincare routine that still delivers visible results. You will find it layers perfectly under heavier moisturizers or oils without causing any pilling.

    • Brand:The Ordinary
    • Main Ingredient:Matrixyl and Hyaluronic acid
    • Product Type:Anti-aging serum
    • Volume:1 Fl Oz
    • Key Benefit:Improved skin elasticity
    • Skin Suitability:All skin types
    • Additional Feature:Non-sticky finish
    • Additional Feature:pH-balanced formula
    • Additional Feature:Lightweight consistency
  5. Medicube NAD EGF Firming Serum

    Medicube NAD EGF Firming Serum

    Advanced Korean Firming

    View on Amazon

    This serum brings innovative ingredients to the table, specifically NAD and EGF, which are popular for their ability to support skin density. It is perfect if your smile lines are appearing because your skin is starting to lose its natural bounce.

    The texture is rich and feels luxurious on the skin, making it a great addition to your evening routine. It is a bit more complex than a standard serum, so it is best for those who enjoy a high-tech approach to skincare.

    • Brand:Medicube
    • Main Ingredient:NAD and EGF peptides
    • Product Type:Firming serum
    • Volume:1.01 fl.oz
    • Key Benefit:Enhanced facial firmness
    • Skin Suitability:All skin types
    • Additional Feature:Includes added collagen
    • Additional Feature:Pore-refining benefits
    • Additional Feature:Non-irritating formula
  6. Meditherapy Retinal Skin Booster

    Meditherapy Retinal Skin Booster

    Gentle Overnight Resurfacer

    View on Amazon

    Retinal is often faster-acting than standard retinol, and this serum delivers it in a way that remains soothing for the skin. It is a great choice if you want to soften smile lines but are worried about the dryness that usually comes with active ingredients.

    With the inclusion of cica and niacinamide, this product calms redness while it smooths your complexion. It is versatile enough to use on both your face and your body if you have areas that need extra attention.

    • Brand:Meditherapy
    • Main Ingredient:Retinaldehyde and Niacinamide
    • Product Type:Hydrating booster serum
    • Volume:5.07 fl oz
    • Key Benefit:Smoother skin texture
    • Skin Suitability:All skin types
    • Additional Feature:Large bottle size
    • Additional Feature:Hydrating base ingredients
    • Additional Feature:Suitable for dull skin
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Factors to Consider When Choosing Best Serums For Smile Lines

Hydration And Plumping Agents

Smile lines often deepen when skin lacks moisture, so look for hyaluronic acid as a primary ingredient. This molecule acts like a sponge, drawing water into the top layers of your skin to create a temporary, plumped appearance. If your skin feels tight or dry, a serum with a high concentration of this will make those lines look less noticeable almost immediately.

Retinoids For Long Term Results

If you want to actually address the structural integrity of your skin, you need retinoids. These vitamin A derivatives accelerate cell turnover and encourage collagen production, which over time helps fill in the creases around your mouth. Start with a low percentage to avoid irritation, as the skin near the lips is quite sensitive.

Peptides For Structural Support

Think of peptides as the building blocks that keep your skin from sagging. These short chains of amino acids send signals to your cells to repair damage and maintain firmness. They are usually less irritating than retinoids, making them a safe choice for daily use in your morning and evening routines.

Antioxidants For Daily Defense

Environmental damage from pollution and sunlight breaks down the collagen that keeps your skin smooth. A serum containing Vitamin C or ferulic acid acts as a shield against these daily stressors. Applying this in the morning helps prevent your smile lines from getting deeper over time.

Texture And Layering Compatibility

A good serum should have a lightweight consistency that absorbs quickly without feeling sticky. You want a product that plays well with your moisturizer and sunscreen, as you will likely be layering it under both. If a formula leaves a film, it will likely pill when you apply makeup later in the day.

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Frequently Asked Questions

How long does it take to see results on smile lines?

Be patient, as skin cells take about four to six weeks to complete a cycle. While hydrating serums offer a quick, temporary fix by swelling the skin cells, structural changes from retinoids or peptides require at least three months of consistent use. Do not expect overnight miracles, but keep at it for a steady improvement.

Can I use the same serum for my smile lines as I do for my eyes?

Generally, yes, provided the formula is fragrance free and gentle. The skin around your mouth and eyes is thin and prone to irritation. If a product is safe enough for the delicate eye area, it is usually perfectly fine to apply to your nasolabial folds.

Should I apply the serum before or after my moisturizer?

Always apply your serum to clean skin before your moisturizer. Serums contain smaller molecules designed to penetrate deeply, while moisturizers create a barrier to lock everything in. If you apply the thicker cream first, the active ingredients in your serum will not reach the deeper skin layers effectively.

Will these serums get rid of my smile lines completely?

It is important to remember that smile lines are a natural part of human expression. Skincare can significantly soften their appearance and improve skin texture, but it will not erase them like a cosmetic procedure would. Think of these products as a way to keep your skin healthy and resilient rather than a permanent eraser.

Do I need a prescription strength product for deep lines?

Not necessarily, as many effective ingredients are available in over the counter concentrations. However, if your lines are very deep or you have specific concerns, a dermatologist might suggest a prescription retinoid. Start with high quality store bought options first to see how your skin reacts.

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James Wilson
James Wilson

Sunscreen expert James Wilson has spent years researching SPF formulas and skincare science, helping readers choose safe, effective sun protection through clear, practical, no-nonsense advice.

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