Cosrx Peptide 132 Ultra Perfect Hair Bonding Oil Serum 28ml

COSRX Peptide 132 Ultra Perfect Hair Bonding Oil Serum 28ml – Deep Repair, Intense Shine, and Frizz-Free Smoothness

Hair that has been weakened by heat styling, chemical treatments, environmental exposure, or simply the cumulative stress of daily combing and brushing needs more than surface-level conditioning. It needs targeted repair at the structural level — the kind that reconnects broken internal bonds, seals the cuticle, and restores the hair's natural integrity from within. The COSRX Peptide 132 Ultra Perfect Hair Bonding Oil Serum 28ml is designed to deliver exactly this level of care. Combining the bond-repairing science of Peptide 132 with the nourishing and finishing properties of a carefully formulated oil serum, this product bridges the gap between a treatment and a styling finisher — repairing hair while simultaneously giving it the smoothness, shine, and softness that visibly healthy hair should have.

Whether applied before heat styling to protect and prepare, after washing to seal and nourish, or as a finishing touch to tame frizz and add luminosity, the COSRX Peptide 132 Hair Bonding Oil Serum adapts to multiple stages of your haircare routine, offering both immediate aesthetic improvement and long-term structural repair in a single compact 28ml bottle.

The Science Behind Hair Bonding Oil Serums

To understand why a hair bonding oil serum is different from a conventional hair oil or serum, it helps to know what happens to hair at the structural level when it is exposed to damage. Each strand of hair is composed of a cortex — the inner core where keratin proteins are held together by chemical bonds — surrounded by a cuticle, which is the outermost protective layer of overlapping scales. When hair is exposed to heat, bleach, mechanical stress, or environmental aggressors, both the cuticle and the internal bonds suffer. The cuticle lifts, causing frizz and roughness. The internal bonds break, causing weakness, elasticity loss, and eventual breakage.

A standard hair oil works only at the cuticle level, smoothing and sealing the surface for temporary shine and softness. A bonding treatment works within the cortex to repair the broken internal bonds. The COSRX Peptide 132 Ultra Perfect Hair Bonding Oil Serum combines both approaches — delivering bond-repairing peptides into the hair shaft while simultaneously coating and smoothing the cuticle with nourishing oils, offering a more comprehensive repair and finish than either approach alone.

Key Ingredients and Their Benefits

Peptide 132 Complex

At the heart of this formula is the Peptide 132 complex, COSRX's signature hair bonding ingredient. Peptides are short-chain amino acids, the building blocks of the keratin protein that makes up hair. The Peptide 132 complex is specifically formulated to seek out and reconnect weakened or broken bonds within the hair's internal structure, restoring strength, elasticity, and resilience over consistent use. With every application, the peptide complex contributes to a cumulative improvement in hair integrity, making strands progressively more resistant to breakage and damage over time.

Nourishing Oil Blend

Complementing the bond-repairing peptides is a lightweight blend of nourishing oils that coat the cuticle, reduce friction, and deliver moisture and lipids to the hair surface. This oil component provides the immediate sensory benefits of a hair oil — smoothness, softness, shine, and frizz reduction — while creating a protective layer over the hair shaft that helps shield against further environmental and thermal damage. Despite its oil content, the formula is designed to absorb without leaving a heavy, greasy residue, making it suitable for fine as well as coarser hair textures.

Amino Acids

Supporting the Peptide 132 complex, additional amino acids in the formula help reinforce the hair's protein structure and fill in gaps in the cuticle caused by damage. This contributes to a smoother surface texture, improved light reflection (which translates to greater visible shine), and enhanced resistance to further cuticle lifting under humidity and heat.

Heat and Environmental Protective Agents

The formula includes protective agents that help buffer the hair against thermal stress from styling tools and environmental damage from UV exposure, pollution, and humidity. When applied before heat styling, these agents reduce the degree of bond disruption that occurs during the styling process, preserving more of the hair's natural integrity with every session.

Who Should Use This Product?

The COSRX Peptide 132 Ultra Perfect Hair Bonding Oil Serum is suitable for all hair types and particularly beneficial for:

• Those who regularly use heat tools such as straighteners, curling irons, or blow dryers
• Hair that has been chemically treated through bleaching, coloring, perming, or relaxing
• Fine, limp hair that needs lightweight nourishment and shine without added weight
• Coarse or frizzy hair that needs smoothing, sealing, and definition
• Dry, brittle hair that lacks elasticity and snaps easily during styling or combing
• Anyone seeking a finishing product that improves appearance while simultaneously repairing structure

How to Use COSRX Peptide 132 Ultra Perfect Hair Bonding Oil Serum

Method 1 – Pre-Styling Application (Heat Protection and Bond Preservation)

After washing and towel-drying the hair to remove excess moisture, dispense two to three drops of the serum into your palms, rub them together to distribute evenly, and work the product through the mid-lengths and ends of damp hair. Avoid applying directly to the roots to prevent weighing the hair down. Comb through to distribute evenly, then style as usual with your heat tools. The serum creates a protective layer that reduces heat-induced bond damage during the styling process.

Method 2 – Post-Wash Finishing (Sealing and Nourishing)

After washing and conditioning, apply the serum to towel-dried hair as a leave-in treatment before air drying or blow drying. This seals the cuticle while the hair is in its most vulnerable damp state, locking in moisture and reducing frizz as the hair dries. The result is smoother, more defined, and more manageable hair with a natural, healthy-looking finish.

Method 3 – Dry Hair Finishing (Shine and Frizz Control)

Dispense one to two drops into your palms, lightly rub together, and smooth over the surface of dry, styled hair to add shine, tame flyaways, and control frizz. Use sparingly for a natural finish, or apply slightly more for a sleeker, more polished look. This method is particularly useful for touch-ups throughout the day.

How This Serum Fits into a Complete Haircare and Skincare Routine

Many people who invest in premium haircare also maintain a consistent skincare routine, and COSRX is one of the few brands that excels across both categories with the same commitment to evidence-driven formulation. If you are building a comprehensive COSRX routine that covers both hair and skin, pairing this hair bonding oil serum with targeted skincare treatments ensures you are caring for your appearance holistically.

For skin that needs calming and blemish support alongside a strong haircare routine, the COSRX Centella Blemish Cream for Sensitive Skin is an excellent companion product. Just as the hair bonding serum targets structural damage in hair, the blemish cream targets inflammation and barrier disruption in sensitive, blemish-prone skin — two different formulations addressing two different types of damage with the same careful, ingredient-led approach.

If your skin also benefits from regular gentle exfoliation, the COSRX AHA/BHA Clarifying Treatment Toner fits seamlessly into your daily skincare step as a mild, daily-use acid toner that keeps pores clear and skin texture refined without disrupting sensitivity — much like how this oil serum works gradually and consistently to improve hair quality over time rather than delivering a one-time fix.

For skin hydration that matches the nourishing philosophy of this hair serum, the COSRX Centella Water Alcohol-Free Toner provides a deeply soothing and hydrating toning step grounded in Centella Asiatica — reinforcing the skin barrier just as the hair bonding serum reinforces the hair's structural integrity.

Where to Buy in Bangladesh

Glowza BD is Bangladesh's most trusted platform for authentic Korean and international beauty, stocking the complete range of COSRX haircare and skincare products with verified authenticity and transparent pricing. For those searching for the best COSRX Peptide 132 Hair Bonding Oil Serum price in BD, Glowza BD provides reliable, up-to-date pricing directly on each product page so you can shop with confidence.

You can explore the full COSRX serum collection available in Bangladesh at Glowza BD, covering everything from skin serums to hair treatment serums across the complete COSRX range. And if you want to explore everything the brand has to offer across all product categories, the full COSRX collection at Glowza BD is your most comprehensive starting point — with the assurance that every product listed is genuine and every COSRX Peptide 132 Hair Bonding Oil Serum price in Bangladesh shown reflects current, fair market pricing.

Tips for Getting the Most from This Product

• Less is more — start with one to two drops and increase only if needed, as over-applying can weigh hair down
• Focus on mid-lengths and ends, which are the most damaged and porous parts of the hair shaft
• Use consistently over four to eight weeks to evaluate the full bond-repairing and strengthening benefits
• Combine with the COSRX Peptide 132 Hair Bonding Shampoo for a complete, coordinated bond-repair haircare routine
• Minimize additional heat styling during the initial repair phase to allow bonds to fully reconnect
• Store in a cool, dry place away from direct sunlight to preserve the stability of the peptide complex

Frequently Asked Questions (FAQs)

1. What is the COSRX Peptide 132 Ultra Perfect Hair Bonding Oil Serum?

It is a lightweight hair oil serum that combines the Peptide 132 bond-repairing complex with nourishing oils to repair broken internal hair bonds, smooth the cuticle, reduce frizz, and add shine to damaged or weakened hair.

2. How is this different from a regular hair oil?

A regular hair oil primarily coats the surface of the hair for temporary smoothness and shine. This serum goes further by delivering bond-repairing peptides into the hair shaft, addressing the structural damage that causes weakness and breakage rather than only improving surface appearance.

3. Can I use this on color-treated or bleached hair?

Yes, and it is particularly beneficial for chemically treated hair, which experiences some of the most significant bond damage during the treatment process. The Peptide 132 complex helps restore the structural integrity that chemical processes compromise.

4. Is this serum suitable for fine hair?

Yes. The lightweight formula is designed to absorb without leaving a heavy residue, making it appropriate for fine hair. Start with one drop and adjust based on your hair's thickness and response to avoid weighing strands down.

5. Can I apply this to dry hair as a finisher?

Yes. One to two drops smoothed through the surface of dry, styled hair adds shine, tames frizz and flyaways, and gives the hair a polished, healthy-looking finish without making it appear greasy.

6. Does this replace a heat protectant?

It offers a degree of thermal protection as part of its formulation, but for very high heat styling or professional-level thermal exposure, using a dedicated heat protectant in addition to this serum is recommended for maximum protection.

7. How many drops should I use per application?

One to three drops is typically sufficient depending on hair length and thickness. Short or fine hair requires less; long or coarse hair may benefit from slightly more. Always start with less and add more if needed.

8. Where can I find the COSRX Peptide 132 Hair Bonding Oil Serum price in Bangladesh?

The most current pricing is listed directly on the Glowza BD product page. Glowza BD keeps all COSRX product prices updated and clearly displayed so shoppers always know the exact cost before purchasing.

9. Can I use this alongside other hair treatments?

Yes. It layers well with other haircare products. For a comprehensive bond-repair routine, using it alongside the COSRX Peptide 132 Hair Bonding Shampoo provides both in-wash and post-wash repair for maximum cumulative benefit.

10. How long will a 28ml bottle last?

Since only one to three drops are used per application, a 28ml bottle provides a generous number of uses. With daily application, most users find it lasts between one and two months, making it a cost-effective treatment despite the small bottle size.