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What is Polyhexamethylene Biguanide (PHMB)? What is Polyhexamethylene Biguanide (PHMB) Used For?

Polyhexamethylene Biguanide (PHMB), also known as Polyaminopropyl Biguanide (PAPB), is a broad-spectrum antimicrobial that has become one of the most trusted preservation and disinfectant technologies worldwide. With strong efficacy, outstanding safety, and regulatory acceptance across multiple industries, PHMB is widely used in personal care, home care, water treatment, medical, and industrial applications.

As consumer safety standards continue to rise, formulators increasingly look for reliable and mild preservation systems. This has prompted strong global demand for quality polyhexamethylene biguanide manufacturers and PHMB suppliers that can deliver consistent quality and compliance.

In this article, we will explain:

  • What PHMB is and how it works

  • Why PHMB is considered a safer and more advanced antimicrobial

  • Key applications and recommended usage levels

  • How to choose a trusted PHMB manufacturer or polyhexamethylene biguanide supplier

Our goal is to help you fully understand PHMB and guide you to the right purchasing decision.

Polyhexamethylene Biguanide (PHMB) for wet wipes and other personal care, home care product
Polyhexamethylene Biguanide (PHMB) powder for aquaculture, spa care and swimming pool

What Is Polyhexamethylene Biguanide (PHMB)?

PHMB is a cationic polymer biocide composed of repeating biguanide units. It provides powerful antimicrobial protection at very low dosages. The positive charge of PHMB allows it to strongly bind to negatively charged microbial cell membranes, leading to membrane disruption and cell death.

Key Characteristics of PHMB

PropertyBenefit
Broad-spectrum activityEffective against bacteria, fungi, mold, and some viruses
Low toxicitySafe for human skin, eyes, and mucous membranes
Mild and non-sensitizingSuitable for sensitive skin formulations
Stable under wide pH rangeAllows flexible formulation
Compatible with surfactantsIdeal for personal and home care products
Non-VOC, non-flammableSafe for handling and transportation

Due to its strong microbial control and safety profile, PHMB is widely approved in international cosmetic regulations, including EU Cosmetic Regulation, FDA cosmetic guidelines, ASEAN, and China regulations.

As demand grows, selecting a reliable polyhexamethylene biguanide supplier with good manufacturing capability is increasingly important for product performance and compliance.

How Does PHMB Work as an Antimicrobial?

PHMB selectively targets harmful microorganisms while being extremely safe to humans. It works in three major modes:

  1. Electrostatic binding – PHMB is positively charged and attaches to negatively charged microbial walls

  2. Cell membrane disruption – It damages the structure of cell membranes

  3. Interference with DNA – It stops microbial cell division and reproduction

Because microbes cannot easily adapt to multiple modes of action, PHMB shows low resistance development, which is a significant advantage over traditional preservatives.

Why Is PHMB Considered a Safer and More Advanced Biocide?

Compared with traditional preservatives (like parabens, MIT/CMIT, formaldehyde releasers), PHMB provides:

Strong effectiveness with lower dosage
No strong irritation or sensitization
Excellent long-lasting protection
Good compatibility with cosmetic ingredients
Stable up to pH 3–12

This combination of mildness and performance has made PHMB the leading preservative solution in many modern product categories. Global brands are increasingly selecting PHMB for gentle yet reliable preservation.

If you are sourcing safe & compliant ingredients, partnering with a trustworthy PHMB supplier ensures consistent quality and regulatory support.

What Is Polyhexamethylene Biguanide (PHMB) Used For?

PHMB is extremely versatile, with applications covering personal care, household care, institutional disinfection, medical hygiene, and industrial treatment.

1️⃣ Personal Care Products

Used as a preservative or antimicrobial active in:

  • Skin care: lotions, creams, serums, toners

  • Wet wipes and baby wipes

  • Deo and footcare products

  • Eye products (e.g., cosmetic lens cleaners)

  • Haircare: shampoo, conditioner, scalp products

Typical dosage:
▪️ Preservative function: 0.05–0.3%
▪️ Antimicrobial active: 0.3–0.5%

PHMB is valued for its mildness, especially for baby and sensitive skin formulas.

2️⃣ Home Care & Cleaning Products

PHMB provides strong microbial control in:

  • Disinfectant sprays and surface cleaners

  • Household wipes

  • Laundry detergents and fabric sprays

  • Air fresheners and odor control products

It delivers long-lasting protection even after drying, a strong advantage over alcohol-based products.

3️⃣ Contact Lens & Medical Uses

Due to its safety and anti-biofilm performance, PHMB is found in:

  • Contact lens disinfecting solutions

  • Surgical hand rubs and hospital disinfectants

  • Wound irrigation solutions

  • Antiseptic gels and dressings

Its bactericidal yet gentle properties protect sensitive tissues effectively.

4️⃣ Water Treatment

PHMB helps maintain clean and safe water systems:

  • Swimming pools, spa systems

  • Cooling towers

  • Industrial circulating water

PHMB acts without producing harmful chlorine-based by-products and is effective in wide pH conditions.

5️⃣ Textile, Leather & Industrial Preservation

It prevents microbial damage to:

  • Textiles, leather goods

  • Emulsions and polymer products

  • Paper and coatings

PHMB offers anti-mold and antibacterial durability, which makes it ideal for long-term protection.

Comparison: PHMB vs. Conventional Preservatives

FeaturePHMBParabensMIT/CMITAlcohol Disinfectants
Mildness⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐
Broad-spectrum⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐
Long-lasting protection⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐
Sensitization riskVery LowMediumHighMedium
Regulatory acceptanceWidely acceptedRestricted in some regionsSevere restrictions in EULimited in cosmetics

Conclusion: PHMB offers the balance of safety + power that the industry needs.

How to Choose a Reliable PHMB Manufacturer or Supplier?

Selecting the right partner ensures stability, compliance, and long-term supply. A professional polyhexamethylene biguanide manufacturer should provide:

Evaluation CriteriaWhat to Look For
Product QualityHigh purity, consistent polymer chain distribution
Regulatory DocumentationTDS, COA, MSDS, safety & compliance support
Production CapabilityStable supply, suitable packaging sizes
Technical ServiceFormulation guidance, microbial challenge testing
Global Export ExperienceFamiliar with EU, US, ASEAN regulatory requirements
Competitive PricingSupports both bulk & private brand buyers

If your business needs reliable sourcing, our company can act as your long-term PHMB manufacturer and PHMB supplier, providing customized solutions for personal care and disinfection markets.

Why Work With Our Polyhexamethylene Biguanide Manufacturing Team?

As an experienced polyhexamethylene biguanide supplier, we offer:

  • ✔ High-purity PHMB liquid and powder grades

  • ✔ Globally compliant raw materials

  • ✔ Fast delivery and competitive price

  • ✔ Technical formulation support

  • ✔ Flexible MOQ for distributors

We support brands, factories, and distributors expanding in:

  • Skincare

  • Wet wipes

  • Disinfectants

  • Medical hygiene

  • Home care and textiles

If you are looking for a professional PHMB manufacturer with stable quality and global logistics capabilities, we are ready to support your project.

📧 Contact us: sales@szeasychem.com
📦 Bulk, OEM & private-label supply available
🌍 We ship worldwide

FAQ About PHMB

Is PHMB safe in cosmetic products?
Yes. PHMB is considered safe within approved dosages and widely used in cosmetics globally.

Does PHMB replace parabens or MIT/CMIT?
Yes, PHMB is commonly adopted as a safer alternative to restricted preservatives.

Is PHMB environmentally friendly?
PHMB biodegrades in water treatment systems and is safe when used according to regulations.

Can PHMB be combined with other preservatives?
Yes. Combination strategies further enhance microbial control.

Final Thoughts

Polyhexamethylene Biguanide (PHMB) is a next-generation antimicrobial that perfectly balances safety and strong performance. Its versatility makes it suitable for countless consumer and industrial applications.

As demand continues to grow, choosing a trusted polyhexamethylene biguanide manufacturer is key to safety, compliance, and cost-effectiveness.

If you are searching for:

  • PHMB manufacturer

  • Polyhexamethylene biguanide supplier

  • PHMB supplier for cosmetics or disinfectants

We are ready to support your needs with professional service and reliable quality.

📬 Contact Us

👉 Request samples & quotations now
📧 Email: sales@szeasychem.com

Grow your brand with a safer, stronger, and more modern preservative solution — PHMB.

Suzhou easy chemical co. ltd 

388, Dengyun Road,Kunshan, Jiangsu, China 

Email: sales@szeasychem.com 

Contact: Joyce Yu

MB: +86 13962653966

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