ZPT Zinc Pyrithione CAS 13463-41-7
Zinc Pyrithione: Overview
Zinc pyrithione is a compound formed by the complexation of zinc ions and pyrithione, with the molecular formula C₁₀H₈N₂O₂S₂Zn. Its core characteristic is its role as a highly effective broad-spectrum antifungal and antibacterial agent. Due to its unique chemical structure, it can effectively inhibit microbial growth. It is widely used as an additive in personal care products.

Why Choose YTBIO Zinc Pyrithione (ZPT)?
We own our factory with over 12 years of experience supplying cosmetic-grade broad-spectrum antimicrobial raw materials for anti-dandruff hair care, scalp soothing skincare and industrial biocide formulations. Our full production line holds complete international certifications: ISO9001, MSDS, SGS safety test report, fully compliant with global cosmetic raw material safety specifications.
Zinc Pyrithione (abbreviated ZPT) is synthesized via precision coordination complex reaction and recrystallization purification. Standard specification: 98% HPLC white fine crystalline powder, customized ultrafine particle size available for stable dispersion in surfactant systems.
certificate of analysis
|
ITEM |
STANDARD |
TEST RESULT |
|
Zinc Pyrithione |
98.0% |
98.6% |
|
Physical & Chemical |
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|
Appearance |
White to slight yellow powder |
Conforms |
|
Loss on Drying |
≤0.5% |
0.3% |
|
Microbiological Test |
||
|
Total number of colonies |
≤1000CFU/g |
Conforms |
|
Coliforms |
≤40MPN/100g |
Conforms |
|
Mold and yeast |
≤25CFU/g |
Conforms |
|
Conclusion |
Conform with specification |
|
|
Storage |
Store in cool and dry places. Keep away from strong light and heat |
|
|
Packing |
By 25kgs/Drum, inner by double plastic bag |
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|
Shelf Life |
24 months under the above condition,and in it’s original package |
|
Zinc Pyrithione: Main Functions
Its core mechanism of action is dual:
Inhibiting microbial growth: It can effectively penetrate and destroy the cell membranes of fungi (especially Malassezia, which is associated with dandruff) and bacteria, interfering with their energy metabolism and thus preventing their reproduction.
Regulating skin cell renewal: In addition to its direct antibacterial effect, it can also regulate the excessive proliferation and abnormal keratinization of scalp keratinocytes, reducing the accumulation of keratinous debris that leads to dandruff at its source.
Applications of Zinc Pyrithione: From Daily Chemicals to Industry
Based on its powerful antibacterial and antifungal properties, its applications are mainly concentrated in two areas:
Personal Care Products (formerly a primary area):
For a long time, it has been a highly effective dandruff agent, the core active ingredient in most anti-dandruff shampoos and conditioners, used to control dandruff and seborrheic dermatitis.
Industrial Applications:
As a preservative and antifouling agent, it is widely used in coatings, plastics, sealants, marine antifouling paints, and industrial cooling water systems to prevent the adhesion and damage of microorganisms, algae, and marine organisms.
Recommendations
·Usage Concentration
In dandruff rinse-out products, the maximum permissible concentration is 1.5%; in leave-on products, it is 0.1%. In actual use, it is recommended to start with a lower concentration (e.g., 0.5%-1%) and adjust according to scalp tolerance and effectiveness.
If used as a preservative, the maximum concentration in rinse-out products is 0.5%.
·Frequency of Use
Long-term continuous use is not recommended. It is suggested to use 2-3 times per week to avoid excessively suppressing the scalp's microbiome balance. If scalp problems are severe, the frequency of use can be increased briefly (2-4 weeks), then gradually reduced thereafter.
·How to Use
When shampooing, apply the shampoo containing zinc pyrithione evenly to wet hair and scalp, gently massage for 2-3 minutes to ensure the ingredients fully contact the scalp, then rinse thoroughly with water.
If using conditioner, avoid contact with the scalp to prevent rinsing away the anti-dandruff ingredients.

FAQ
Q: What certifications can you provide?
A: We hold GMP, ISO, HACCP, HALAL, KOSHER, FDA certificates, support OEM private label customization.
Q: What specifications do you supply?
A: ≥96% cosmetic grade Zinc Pyrithione powder. Each batch attached COA and third-party inspection reports.
Q: Product highlights?
A: High purity, low soluble salt impurities, uniform particle size, stable antibacterial activity batch by batch.
Q: Storage & shelf life?
Shelf life: 24 months. Seal tightly, store in cool, dry, dark warehouse, avoid high temperature and strong light to prevent discoloration.
Q: MOQ & delivery cycle?
A: Standard bulk MOQ 25kg. Production cycle 7–15 working days.
Q: After-sales support?
A: Formula matching guidance for anti-dandruff and antibacterial personal care products; return & exchange service for qualified quality defects.
Email: sales@sxytbio.com
WhatsApp/phone: +86 17782577059
Office Add: No.801, Building 3, Dahua Shuzhi Industrial Park, Tiangu 6th Road, Yanta District, Xi 'an, Shaanxi, China








