NPI are protocols to be implemented with a target population, but they are merely specifications. They must be contextualized and personalized. The NPI Registry offers best practices and tips for optimal implementation. Furthermore, the NPIS recommends interdisciplinary training in health ethics for their application. The scientific society works with its partners to develop and recognize this foundational training, which could be conducted particularly in higher education institutions in collaboration with the Ministry of Health. This ethical training includes all the prerequisites of knowledge, skills, and attitudes necessary for interprofessional practice in health. Health professionals with practical experience, such as doctors, will have equivalencies.

Moving, eating, drinking, sleeping, talking, reading, writing, painting, listening to music, watching a movie, dancing, laughing, walking, singing, meditating, gardening, socializing, etc., are all activities of daily life. Some of these can generate joy, pleasure, personal growth, and well-being. In a democratic country, everyone is free to interpret and experience these activities in their own way. This relates to life philosophy, lifestyle, the art of living, and personal development. In other words, a daily activity is not an intervention, even if it can occasionally and randomly contribute to the health of certain individuals. Occupational activities and treatments for health problems identified by medicine are different.

The following products are not considered NPI:

• Hygiene and beauty products (shampoo, toothpaste, brush, body cream, etc.)
• Natural products (plants, food, mushrooms, essential oils, etc.)
• Health products (medications, implantable biological materials, dietary supplements, etc.)
• Medical devices (artificial organs, prosthetics, orthotics, digital applications, monitoring systems, etc.)

The following goods and services are not considered NPI:

• Cultural products or services (video games, books, podcasts, artistic practices, museum visits, theater, writing, etc.)
• Everyday consumer products or services (haircuts, aesthetic treatments, dining out, etc.)

The following actions are not considered NPI:

• Public health promotion activities (communication campaigns, videos, posters, booklets, websites, social media posts, etc.)
• Architectural adaptations (creating access ramps, etc.)
• Environmental adaptations (reforestation of a park, creation of a sports workshop, etc.)

The following approaches are not considered NPI:

• Professional disciplines (physiotherapy, psychology, dietetics, public health, etc.)
• Educational approaches (personal development, etc.)
• Esoteric practices (spiritual practices, religious worship, divination, witchcraft, etc.)

The following organizations are not considered NPI :

• Health organizations (networks, platforms, clinics, health centers, healthcare establishments, etc.)
• Health systems (digital platforms, etc.)

The following measures are not considered NPI :

• Health policies (strategies, plans, programs, etc.)
• Regulations (decrees, laws, etc.)
• Judicial decisions (warnings, convictions, etc.)

Immaterial practices of prevention and care have existed since ancient times. However, the diversification of practices, the multiplication of professions at the intersection of prevention, care, and social assistance, and the globalization of information systems have leveled these services and obscured them at a time when medicine has made significant advances in the early detection and diagnosis of health issues. The interdisciplinary and multisectoral approach of the NPIS generates a value chain, from the design of practices to their implementation, regulation, and financing.

Innovative economic model initiatives are emerging worldwide, including fee-for-service, bundled payments, social economy provisions, offers promoting sustainable development, e-health economy, human innovation bundles, and long-term economy (World Economic Forum, 2024). The NPIS Prospective Pole, led by Michel Noguès, documents these initiatives in books (Noguès, 2022; Noguès, 2024). The NPIS Forums invite all innovators to share their experiences.

Each NPI file in the NPI Registry has been submitted by a practitioner or researcher through the dedicated platform hosted by the NPIS. Each file undergoes review by an independent and integrated scientific committee. This committee invites relevant scientific societies and health authorities to validate the NPI files and/or to oversee the decisions made. Each validated file is then reviewed by a committee of users and professionals. Once labeled NPIS©, the file is translated into at least English and French and integrated into the NPI Registry.

The file contains standardized content supported by scientific studies that align with the NPIS definition of NPI, the expected specifications (Table 2), and the consensual evaluation framework for NPI, known as the NPIS Model. It includes a manual for professionals, an information notice for users, a section on funding options, and an area for anonymous user feedback. This ensures the file remains dynamic and part of a virtuous cycle of continuous improvement for the NPI.

A minimum of one prototypical study, one mechanistic study, two interventional studies, and one implementation study published in a peer-reviewed journal is required for an NPI proposal to be accepted by the expert committee tasked with validating the NPI file and awarding the NPIS© label. Specifically, experts must have evidence to anonymously vote on each criterion of the NPI file proposed to the NPIS by a submitter:

• Described (≥ 1 prototypical study)
• Explainable (≥ 1 mechanistic study)
• Effective (≥ 2 interventional studies)
• Safe (≥ 2 interventional studies)
• Implementable (≥ 1 implementation study in the country)

A professional must understand all the specifics of the NPI, the criteria justifying its use, how to implement its protocol, whom to contact, useful tips, required materials, and any prerequisite training needed.

An alliance for NPI is essential today in response to siloed proposals from various disciplines (biology, psychology, public health), professions (medical, paramedical, educational, social), sectors (prevention, care, support for autonomy, social services, education, end-of-life care, disability), and currents (traditional or scientific medicine) at both national and supranational levels. The NPIS brings together these scattered and sometimes divided stakeholders to foster better understanding, practice, and recognition of NPI. The scientific society contributes to developing an NPI ecosystem that is often overlooked. It mobilizes hundreds of professionals and users worldwide to address the public health challenges of the 21st century that are widely recognized.

It highlights essential NPI and best practices to be delivered to the right people at the right time in their journey without criticizing other health solutions. Specifically, the NPIS enables:

• Research stakeholders to develop, evaluate, and promote NPI.
• Care, prevention, and social support professionals to enhance their skills and access best practice recommendations and implementation tools for NPI.
• Health operators to choose, organize, track, consolidate, secure, and sustain investments in NPI.
• National and supranational health agencies to improve their knowledge for designing effective strategies regarding NPI.
• Governments, non-governmental organizations, user associations, and health actor federations to establish a common language within a defined scope to create just, equitable, and sustainable policies.

After establishing a standardized evaluation model, the NPIS contributes to an interprofessional, intersectoral, and bipartisan alliance in favor of NPI. Through an annual global summit, it gathers all stakeholders in the ecosystem during the third week of October, known as the NPIS Summit. This significant event discusses the economic and regulatory structuring of the ecosystem with all parties involved. The 2024 edition will take place in a highly symbolic venue, the Cité Universitaire in Paris, a quintessential humanist space open to the world, science, and peace, created between the two world wars last century. Everyone can participate and contribute to this international dynamic aimed solely at legitimizing NPI within health system offerings without disparaging other solutions. This coalition is called the NPIS Alliance.

Interoperability between the information systems of healthcare providers and funders is crucial for the efficiency of NPI. Assigning a unique code to an NPI enhances information sharing, decision-making, implementation quality, traceability, monetization, and impact analysis. This way, an NPI becomes an identifiable act within an institutional nomenclature. The characteristics of an NPI are described and justified by studies published in peer-reviewed scientific journals that meet international health research standards. They must conform to the NPIS Model. Innovative practices, through a process of standardization and independent expertise, become NPI labeled as NPIS©. They can be integrated into personalized health pathways by a professional, a multidisciplinary team, a health center, a care facility, a medico-social organization, a health network, a digital platform, or any other organization authorized to provide health solutions. With a unique coding system for each NPI that is interoperable with insurance and professional nomenclatures, authorities in a country and insurance systems can implement monitoring and feedback procedures regarding the use of NPI according to their risk management levels. Data from user experiences, professionals, healthcare providers, and institutions can lead to new research questions. Research can foster innovations, such as isolating more specific, effective, implementable, and efficient NPI within local platforms and organizations.