K-Beauty

Trusted by First 200+ Customers

30-Day Satisfaction Guarantee

A Comprehensive Look at COSRX, The 6-Peptide Skin Booster Serum, to Unlock Radiant Skin.

  • By Vickie Le

Published: Saturday, October 18, 2025

It might be difficult to locate skincare products that actually work in the always changing industry. The COSRX The 6 Peptide Skin Booster Serum 150ml is one item that has been making waves. COSRX, which is well-known for its dedication to effectiveness and quality, has created a serum that is intended to revitalize and nourish the skin. We'll go into great length about the product, examine its components, and offer advice on how to use it as part of your daily skincare routine in this blog article — especially if you’re exploring the daily skin care skin booster set options to upgrade your regimen.

 

Product Specifications

The lightweight, moisturizing COSRX The 6 Peptide Skin Booster Serum 150ml is designed to increase skin elasticity and encourage a more youthful appearance. Those who want to address aging symptoms like fine lines and firmness loss may find this serum very appealing. This product uses a special blend of peptides to deeply hydrate and improve the texture of the skin.

Important Attributes:

  • Dimensions: 150 ml
  • Texture: Absorbable and lightweight

Target Skin Issues: Dryness, elasticity loss, and fine lines
Skin Types: All skin types, even sensitive skin, can use it.

The carefully chosen ingredients in COSRX The 6 Peptide Skin Booster Serum 150ml are what give it its effectiveness. A closer look at the key elements is provided below:

 

Main Ingredients

1. Peptides
Six distinct peptides, which are short chains of amino acids, are blended into the serum to assist increase skin elasticity and promote the creation of collagen. Together, these peptides improve skin firmness and lessen the visibility of fine wrinkles. Many users even refer to it as one of the best peptide serum for face due to its visible firming results.

2. Hyaluronic Acid
Hyaluronic acid, which is well-known for its amazing moisturizing qualities, ensures deep hydration by drawing moisture from the surroundings into the skin. This component is essential for keeping skin looking youthful and dewy.

3. Niacinamide
Niacinamide, a kind of vitamin B3, brightens the skin and reduces the visibility of pores. It is advantageous for people with sensitive or acne-prone skin because it also contains anti-inflammatory qualities.

4. Panthenol
Panthenol, also referred to as provitamin B5, is a skin-soothing and hydrating agent. It is perfect for enhancing the general health of the skin because it has anti-inflammatory and healing qualities.

5. Squalane
This natural oil provides gentle hydration without blocking pores by imitating the oils found in the skin. Squalane enhances the function of the skin barrier and helps to retain moisture.

 

How to Use

Incorporating COSRX The 6 Peptide Skin Booster Serum 150ml into your skincare routine is simple and effective. Here’s a step-by-step guide:

Step 1: Cleanse
Start with a gentle cleanser to remove any impurities and prepare your skin for the serum. The COSRX Low pH Good Morning Gel Cleanser 150ml is a great option for maintaining your skin’s natural pH balance.

Step 2: Tone (Optional)
If you use a toner, apply it after cleansing. This helps to balance your skin’s pH and enhance the absorption of the serum.

Step 3: Apply the Serum
Using your fingertips, dispense a small amount (2–3 drops) of the serum and gently press it into your skin. Focus on areas that need extra hydration or show signs of aging.

Step 4: Moisturize
Follow up with your favorite moisturizer to seal in the serum’s benefits and provide additional hydration.

Step 5: Sunscreen (Morning Routine)
If applying in the morning, finish with a broad-spectrum sunscreen to protect your skin from UV damage.

 

Final Thoughts

For those looking to enhance the moisture and texture of their skin, COSRX The 6 Peptide Skin Booster Serum 150ml is an exceptional product. Many skincare enthusiasts who have tried the C peptide serum test have noted visible improvements in firmness and hydration. This serum is a flexible addition to any skincare routine because of its potent combination of peptides and nourishing ingredients, which are intended to address a variety of skin issues.

Whether you’re using it alone or as part of the daily skin care skin booster set, this serum is definitely one of the best peptide serum for face options worth considering to fight the signs of aging and improve overall skin vitality.

Frequently Asked Questions

1. What is COSRX The 6 Peptide Skin Booster Serum 150ml used for?

The COSRX The 6 Peptide Skin Booster Serum 150ml is designed to boost skin elasticity, reduce fine lines, and improve hydration. It combines six types of peptides, hyaluronic acid, and niacinamide to promote a firmer, smoother, and more radiant complexion — making it one of the best peptide serum for face for anti-aging care.

2. Can COSRX The 6 Peptide Skin Booster Serum be used with other products?

Yes! This serum can easily be layered with other skincare products. For example, you can use it after cleansing with the COSRX Low pH Good Morning Gel Cleanser 150ml and follow with your favorite moisturizer or sunscreen. It also works well when included in The Daily Skin Care Skin Booster Set for a complete daily routine.

3. How do you use COSRX The 6 Peptide Skin Booster Serum correctly?

After cleansing and toning, apply 2–3 drops of the COSRX The 6 Peptide Skin Booster Serum 150ml to your face and neck. Gently pat until absorbed, then follow with moisturizer. Use it twice daily — morning and night — for best results.

4. Is COSRX The 6 Peptide Skin Booster Serum suitable for sensitive skin?

Absolutely. The formula is fragrance-free, lightweight, and non-irritating, making it ideal for all skin types — even sensitive or acne-prone skin. Many people who have done a C peptide serum test found this COSRX serum gentle yet effective in improving elasticity without causing irritation.

5. What makes COSRX The 6 Peptide Skin Booster Serum different from other peptide serums?

Unlike standard peptide serums, COSRX The 6 Peptide Skin Booster Serum 150ml combines six peptides with niacinamide and squalane for a more comprehensive approach to firming and hydration. It’s often praised in C peptide serum test reviews as a powerful yet affordable option among the best peptide serum for face products on the market.

6. Can I use COSRX The 6 Peptide Skin Booster Serum every day?

Yes, the serum is gentle enough for daily use. For the best routine, start with the COSRX Low pH Good Morning Gel Cleanser 150ml, apply this serum, and finish with a moisturizer or sunscreen. If you prefer a complete regimen, try pairing it with The Daily Skin Care Skin Booster Set for optimal skin health and glow.

Hurry up! Sale 10% CODE SAVE10

Sale ends in:

00
Days
00
Hrs
00
Mins
00
Secs

Gentle and safe for sensitive skin

Boosts your skin’s natural regeneration

Packed with skin-loving polynucleotides and nutrients

Enhances skin strength and promotes firmness

Check Availability

30-day money back guarantee

Cosrx Collection

Unlock the secret to smoother, firmer, and healthier skin

  • Quality

  • Science

  • Beauty

Cart
Close
Back
Account
Close