As the permanent makeup (PMU) industry accelerates toward professionalization and cross-regional expansion, industry stakeholders have increasingly recognized that the primary constraint on sustainable growth is not individual technical skill, but the long-standing absence of a unified, verifiable, and internationally aligned education and assessment system. This structural gap has made PMU techniques difficult to replicate, audit, and formally recognize across different markets.
Under conventional development models, most practitioners operate as independent technicians or localized instructors, with training heavily reliant on personal experience. Such approaches rarely translate into scalable or standardized systems. In contrast, Haixi Zhao has worked at the intersection of classroom instruction, hands-on training, and cross-regional education delivery. Through systematic analysis and verification of the key variables influencing PMU outcomes, she has transformed experience-based practices into reproducible, assessable, and traceable technical standards through continuous documentation and iterative refinement.
Building on this foundation, Zhao has led the development of a comprehensive educational framework centered on patented tools, standardized operating procedures (SOPs), modular curriculum structures, and auditable certification mechanisms. This framework converts region-specific experience into a transferable training system applicable across markets. It has already been implemented by vocational training institutions in multiple countries and regions and is widely regarded within the industry as a structural response to long-standing systemic challenges.
Establishing a Technical Baseline for Standardized PMU Education Through Patented Tools
In standardized vocational education systems, the absence of a stable technical baseline often renders evaluation inconsistent. Zhao’s education framework is anchored in a utility model patent authorized by the China National Intellectual Property Administration: “A Rotating Needle Tool for Permanent Makeup” (Patent No. ZL 2018 2 1457745.0). By optimizing needle structure, the patented tool enables more stable line output, controlled needle penetration depth, and consistent performance across different treatment areas.
This design allows instructional processes to be grounded in repeatable technical parameters rather than subjective “hand-feel” experience, providing a physical and technical foundation for cross-regional training and unified assessment. On this basis, Zhao further established a comprehensive SOP system covering skin classification, sterilization procedures, needle rhythm control, and post-treatment care. These elements are presented in traceable and auditable instructional units, enabling systematic review and verification of outcomes. Educators involved in cross-regional instruction have noted that this model brings PMU education closer to the evaluative logic applied to regulated technical professions.
Transforming Aesthetic Judgment Into an Assessable Technical Model: The Twin Brow System
Eyebrow design has long been regarded as the most difficult component of PMU education to standardize, as instruction traditionally relies on subjective aesthetic judgment. To address this persistent pedagogical bottleneck, Zhao developed the Twin Brow System, which is protected by a utility model patent granted by the China National Intellectual Property Administration: “A Permanent Makeup Eyebrow Design Assistance System” (Patent No. ZL 2017 2 0373153.X).
Through anchor-point positioning, rhythm segmentation, and a structured training workflow, the system deconstructs eyebrow design into verifiable technical steps. It establishes three evaluation checkpoints—front-section line direction, mid-section density control, and tail-section needle withdrawal—allowing outcomes produced in different teaching environments to be aligned and assessed consistently. The system has since been widely adopted in multilingual instructional settings across Asia and North America.
From Instructor to Education System Architect
As the education framework matured, Zhao’s professional role evolved accordingly. She was appointed as a technical lecturer for the Asian PMU Artist Database, a position typically reserved for professionals involved in curriculum standards and evaluation model development. She also serves as a core educator for the PCL Global Tour Program, where she is responsible for advancing standardized PMU education across North America, East Asia, and Southeast Asia. Her responsibilities include curriculum localization, alignment of scoring systems, and coordination of multilingual instruction.
Building Industry Consensus Through Public Professional Communication
Prior to the formal establishment of her education system, Zhao actively contributed to industry knowledge dissemination through high-impact public professional platforms. She was invited to participate in Together, Let’s Be Beautiful (《一起美吧》), a beauty-industry interview program produced by iQIYI. In the program, she provided systematic explanations of eyebrow design logic, skin analysis methods, technical control principles, and post-procedure care frameworks.
Industry observers note that such method-focused and standards-driven public discourse, delivered through mainstream media platforms, has played a meaningful role in guiding the PMU sector away from experience-dominated perceptions toward a more explainable and verifiable professional framework.
From Local Practice to Global Education Standards
Taken as a whole, Zhao’s work addresses a central and long-standing challenge within the PMU industry: how technically driven craft practices can achieve scalable standardization and cross-regional consistency. Her efforts span the full chain from patented tools and instructional models to global curriculum deployment and certification mechanisms. As the PMU industry continues to move toward greater regulation and international integration, Haixi Zhao is increasingly recognized as a key contributor to the formulation of professional education standards, with her systematic approach reshaping how PMU expertise is defined, evaluated, and transmitted on a global scale.
