Terms of Use for Professionals & Experts

DOCUMENT INFORMATION

Applies to: Professional Users (Providers) offering services via the VivianLab Platform
Last amended: 5/12/2025
Related documents: Terms of Use for Consumers | Privacy Policy | Data Processing Agreement (Appendix 1)

Preamble

These Terms of Use apply exclusively to Professionals & Experts (also referred to as "Providers") who register and offer services through the website located at www.vivianlab.gr, www.vivianlab.com, and www.vivianlab.health, and related mobile applications (collectively, the "Platform").

The Platform is owned and operated by the company under the name “VIVIANLAB SINGLE MEMBER P.C." and the distinctive title “Vivian Lab", with headquarters in Athens, street 47 SAMOU STR, with no. G.E.MI. 179795401000, Tax NUMBER 802625789, Tax office AMAROUSION, electronic contact info@vivianlab.com (the “Company”).

All content, trademarks, and domain names (including www.vivianlab.gr, www.vivianlab.com, and www.vivianlab.health) are the exclusive property of the Company and are protected by copyright, trademark, and other applicable intellectual property rights.

The Company is committed to ensuring that the Platform is accessible to all users, including those with disabilities, in compliance with the European Accessibility Act (Directive (EU) 2019/882) and relevant technical standards.

1. DEFINITIONS

For purposes of these Terms of Use:

• “Professional User” or “Provider”: Any individual or legal entity registered on the Platform to offer professional services (including health specialists, consultants, and businesses active in the health and wellness sector).
• "Consumer" or "User": Any individual using the Platform to seek, book, or receive services or digital content from Professional Users.
• "Platform" or "Marketplace": The online environment operated by the Company under the brand name VivianLab, accessible via website and mobile applications.
• “Company": “VIVIANLAB SINGLE MEMBER P.C." with headquarters in Athens, street 47 SAMOU STR, with no. G.E.MI. 179795401000, Tax NUMBER 802625789, Tax office AMAROUSION, electronic contact info@vivianlab.com, the legal entity that owns and operates the Platform.
• “Services”: All intermediary services provided by the Company through the Platform, including profile display, appointment booking, video consultations, educational content, and AI-assisted tools.
• “Agreement”: These Terms of Use, together with the Privacy Policy and Data Processing Agreement .
• “Business Days”: Any day other than Saturday, Sunday, or public holiday in Greece.
• “Session” or “Appointment”: A scheduled consultation or service delivery between a Professional User and a Consumer via the Platform.
• “Professional Content”: Any information, advice, recommendations, educational material, or other content (including during webinars, sessions, articles, posts, and videos) provided by the Professional User through the Platform or in collaboration with the Company.
• “Co-Created Content”: Any content (including, but not limited to, videos, webinars, online courses, articles, social media content, interviews, and recordings) that is created jointly by the Professional User and the Company or produced by the Company featuring the Professional User.

2. ACCEPTANCE OF TERMS

By registering on or using the Platform, you (the Professional User) fully and unconditionally accept and agree to be bound by:

1. These Terms of Use for Professional Users;
2. The Privacy Policy;
3. Data Processing Agreement (Appendix 1); and
4. The Cookie Policy.

If you do not accept these terms, you must not register or use the Platform.

3. DATA PROTECTION AND GDPR ROLES

3.1 The Company as Data Controller

The Company acts as Data Controller for personal data you provide directly to the Company for purposes such as:

• Creating and managing your Professional User account
• Processing subscription payments
• Sending newsletters and marketing communications (with your consent)
• Platform administration and security

All information regarding purposes, legal bases for processing, retention periods, data recipients, and your rights as a data subject is detailed in our Privacy Policy.

3.2 The Company as Data Processor

When you provide services to Consumers via the Platform, you (the Professional User) act as the Data Controller for personal data related to those services (including appointment data, consultation notes, and any health data).

In this situation, the Company acts as the Data Processor, collecting and processing this data solely on your behalf and upon your explicit instructions.

The legal relationship, security measures, and data processing obligations are governed by the Data Processing Agreement (DPA), which is attached as Appendix 1 and forms an integral part of these Terms of Use.

By accepting these Terms of Use, you simultaneously accept the Data Processing Agreement (Appendix 1).

4. ONLINE SERVICES PROVIDED BY THE PLATFORM

The Platform is an intermediary marketplace specialising in health, wellness, and related consulting services. The Platform does not itself provide medical, health, or professional services; it provides only the technical means for Professional Users to connect with and deliver services to Consumers.

Services available through the Platform include:

• Professional profile display (contact details, qualifications, specialisations, services offered, pricing, working hours)
• Online appointment booking
• Video consultations (via Meet, Calendly, Jitsi, or the Platform’s own system)
• Group webinars and hotlines
• Chat and messaging services
• Educational content (articles, videos, recipes)
• AI-assisted tools (symptom tracking, personalised guidance)

The Company undertakes to ensure that the Platform and the means for providing online services conform to the contract and are fit for the purposes for which digital intermediary services would normally be used, with the professional diligence and skill expected.

5. PROFESSIONAL USER OBLIGATIONS

5.1 Registration and Profile Requirements

Professional Users must:

• Provide accurate, complete, and up-to-date information, including:
  • Full name (or legal entity name)
  • Professional address and headquarters
  • Contact information (phone, email, website)
  • Practice licence number (as issued by the relevant professional association or regulatory body)
  • Professional qualifications, certifications, and areas of specialization
• Update their profile promptly when information changes, including license renewals or expirations

The Professional User is solely responsible for submitting true and accurate information and guarantees both its legality and lawful possession and use. The Professional User is liable for any damages the Company may suffer due to violation of this obligation.

5.2 Compliance with Laws and Professional Standards

Professional Users must:

• Comply with all applicable national, European, and international laws, including but not limited to:
  • Consumer protection laws (Law 2251/1994, PD 131/2003)
  • E-commerce and electronic communications regulations
  • Data protection legislation (GDPR)
  • Professional codes of ethics and conduct
• Not engage in misleading advertising or unfair competition
• Ensure pricing complies with economic transparency requirements
• Maintain necessary insurance coverage for the services provided
• Issue proper tax documents (receipts, invoices) to Consumers and the Company as required by law

The Company does not set, control, or verify service pricing. Professional Users are solely responsible for setting fees and ensuring compliance with all applicable pricing and transparency laws.

5.3 Service Delivery and Professional Conduct

Professional Users must:

• Respond promptly to communications from the Company and Consumers
• Deliver services with professionalism and diligence
• Maintain confidentiality of all information received from Consumers
• Not misuse Consumer data for any purpose other than delivering the contracted service
• Act in good faith and with business ethics

Professional advice and information

Professional Users acknowledge and agree that:

• They are solely responsible for all advice, information, and content they provide to Consumers and to the public through the Platform or in any collaboration with the Company.
• They shall ensure that all advice and information is accurate, up to date, and compliant with applicable laws, professional standards, and ethical codes.
• They shall not provide medical advice or diagnosis if they are not duly licensed and authorised to do so under applicable law.
• They remain fully and exclusively responsible for any consequences arising from their advice, recommendations, or omissions.

If a Professional User fails to provide the agreed service within the specified timeframe without prior written notice and valid reason, the Company may, at its discretion, suspend or terminate the Professional User’s access, withhold or refund payments, or take other remedies as necessary. Repeated or unjustified failures may result in permanent removal from the Platform and/or legal action.

5.4 Prohibition on Unauthorised Appointments and Cancellations

If a Professional User cancels four (4) or more appointments scheduled through the Platform without valid reason, the Company reserves the right to terminate the cooperation and remove the Professional User's profile from the Platform.

5.5 Account Security

Professional Users are responsible for maintaining the confidentiality and security of their account credentials, including passwords and authentication information. Professional Users must choose strong, unique passwords and take reasonable steps to protect their accounts from unauthorised access. The Company is not liable for any loss or damage resulting from a Professional User’s failure to comply with these account security obligations.

6. PRICING, PAYMENTS, AND FINANCIAL TERMS

6.1 Service Pricing

• Professional Users set their own service prices.
• The Company does not intervene in pricing decisions.
• Professional Users are solely responsible for:
  • Ensuring pricing complies with all applicable economic and transparency laws
  • Issuing proper tax documentation (invoices, receipts) to Consumers

Professional Users may offer group sessions or hotlines for free or with payment facilitated by the Company. Professional Users offering free group sessions or hotlines acknowledge and agree that they are solely responsible for the content and delivery of such sessions and will not expect or claim any reimbursement, payment, or compensation from the Company under any circumstances, including cases where no Consumers participate.

6.2 Payment Processing

Payments are processed through Stripe, a third-party payment processor. By registering payment details, Professional Users accept Stripe’s Terms and Conditions.

The Company does not directly handle payments and is not responsible for payment processing issues.

Payment process:

1. When a Consumer books an appointment, their credit card is pre-authorised (not charged).
2. Within 7 days after the session, the Professional User must confirm completion via email or the payment platform.
3. Upon confirmation, the Consumer's card is charged, and funds are transferred to the Professional User's bank account within 5 business days.

If the Professional User does not confirm payment within 7 days, the Company reserves the right to return the payment to the Consumer. However, if the Professional User provides evidence that the session was completed, the Company may, at its discretion, process the payment to the Professional User accordingly.

6.3 Refunds and Withholding of Payment

The Company may refund the Consumer if it determines, based on documented evidence and after providing the Professional User with notice and an opportunity to respond, that the service was not fulfilled or completed as intended. In such cases, even if the Professional User has already received funds, the Company may request the return of such funds for the purpose of refunding the Consumer, provided that the process is conducted in accordance with applicable law and with proper justification and documentation.

The Company shall provide the affected Consumer with a concise explanation of the reasons for the refund decision upon request, unless prohibited by law or necessary for fraud prevention.

6.4 Vouchers and Promotional Payments

When a Consumer uses a voucher or promotional code provided by the Company, the Professional User will be paid directly by the Company (not by the Consumer). In such cases:

• The Professional User must issue an invoice or proof of service (not a receipt) to the Company within 7 days of the session.
• If the document is not issued within this timeframe, the Company reserves the right to refuse payment.

6.5 Technical Failures

If a technical problem prevents a Professional User or Consumer from participating in a scheduled session (e.g., platform malfunction, connection failure), the Company may cancel the session at its discretion. In such cases:

• No charge will occur
• The Professional User is not entitled to payment
• The session may be rescheduled free of charge

This remains at the sole discretion of the Company.

6.6 Automated Proof of Service

The Company's automated system issues proof of service provision for internal use. This automated proof does not replace the tax document (invoice or receipt) that the Professional User is required to issue under applicable tax and accounting laws.

7. RIGHT OF WITHDRAWAL (CONSUMER RIGHTS)

Consumers have the right to withdraw from a scheduled appointment within 14 calendar days from the date of booking, unless:

• The service has already been performed; or
• The Consumer expressly consents to commencement of service during the withdrawal period and acknowledges loss of the right of withdrawal.

For downloadable digital content (e.g., articles, eBooks, videos): By downloading, the Consumer expressly waives the right of withdrawal.

Cancellation policy for appointments:

• More than 24 hours before appointment: Full refund
• Less than 60 minutes before appointment: Cancellation fees apply; no refund

Refunds may take up to 14 business days to be returned to the Consumer's account due to processing requirements.

8. PROFESSIONAL INDEPENDENCE

8.1 Independent contractors

Professional Users are independent contractors, not employees, agents, or partners of the Company.

8.2 No exclusivity

This Agreement does not create an exclusive relationship. Professional Users may provide services to third parties and engage in other business activities.

8.3 Professional responsibility

Professional Users are solely responsible for:

• The content, quality, and delivery of their services
• Their own tax obligations, social insurance, and professional insurance
• Obtaining and maintaining all necessary licenses, permits, and certifications

Professional Users have no authority to enter into contracts, make commitments, or act on behalf of the Company.

Content Collaborations

From time to time, the Company may invite Professional Users to participate in content initiatives, such as webinars, masterclasses, group sessions, live streams (including on Instagram and other social media platforms), interviews, podcasts, or the creation of educational materials. Participation in such initiatives is voluntary, but once a Professional User agrees to participate, any resulting Co-Created Content shall be governed by Section 10.3 (Co-Created Content and Commissioned Materials). The Professional User shall not request removal, withdrawal, or limitation of the Co-Created Content, except where required by mandatory law.

9. PROHIBITED CONDUCT

Professional Users must not:

• Create fake accounts or engage in fraudulent activity
• Collect, store, or misuse personal data of Consumers
• Engage in misleading advertising or unfair competition
• Use offensive, threatening, or discriminatory language
• Harass Consumers or other users (harassment includes verbal or written expressions intended to cause mental or physical harm)
• Upload malware, viruses, or harmful software
• Copy, distribute, or reproduce Platform content without written permission
• Use the Company's trademarks, branding, or identity without consent

The main values governing the Platform are appreciation and respect. Discrimination based on gender, gender identity, nationality, religion, disability, sexual orientation, or age is strictly prohibited.

If these rules are not followed, the Company may:

• Immediately disable the Professional User's account
• Terminate the Agreement
• Contact law enforcement authorities
• Seek damages and other legal remedies

10. INTELLECTUAL PROPERTY RIGHTS

10.1 Company’s Rights

All content, design, trademarks, logos, and software on the Platform are the exclusive property of the Company and are protected by copyright, trademark, and other intellectual property rights.

Professional Users may not:

• Copy, reproduce, distribute, or display Platform content without prior written consent
• Use the Company’s trademark or branding to identify or promote third-party products or services
• Reverse-engineer, disassemble, or interfere with Platform software or systems

Trademark protection: "VivianLab" is a registered trademark protected under Article 6a of the Paris Convention and Directive (EU) 2015/2436 of the European Parliament and of the Council of 16 December 2015 to approximate the laws of the Member States relating to trade marks.

10.2 Professional User Profile Content

By uploading content to your profile (including photos, descriptions, articles, videos), you:

• Retain ownership of your content
• Grant the Company a non-exclusive, worldwide, royalty-free licence to use, display, and distribute your content on the Platform for the purpose of providing the Services
• Warrant that you have all necessary rights to such content and that it does not infringe third-party rights

10.3 Co-Created Content and Commissioned Materials

1. Assignment of Intellectual Property Rights
   To the extent permitted by law, the Professional User hereby irrevocably assigns, transfers, and conveys to the Company, on an exclusive basis, all worldwide intellectual property rights, including but not limited to copyright and related rights, in and to any Co-Created Content produced in collaboration with the Company (including, without limitation, webinars, video recordings, online courses, interviews, articles, blog posts, social media content, marketing materials, and any audio-visual recordings featuring the Professional User), for the entire duration of protection of such rights and for all countries worldwide.
2. Licence where assignment is not possible
   Where an assignment is not legally possible, the Professional User grants the Company an exclusive, worldwide, perpetual, irrevocable, transferable, and sublicensable licence to use, reproduce, modify, adapt, translate, distribute, publish, publicly perform, publicly display, communicate to the public, and otherwise exploit the Co-Created Content in any format and through any media, whether now known or hereafter developed, without any additional compensation.
3. Right to edit, translate, and adapt
   The Company shall have the right to edit, shorten, adapt, combine with other content, create derivative works from, and translate the Co-Created Content into any language, and to use it for any commercial, educational, or marketing purpose, including but not limited to global distribution on the Platform, social media, partner channels, and advertising campaigns.
4. Use of name, image, and likeness
   The Professional User grants the Company the right to use their name, professional title, image, voice, and likeness as incorporated in the Co-Created Content, solely for the purposes of promoting and exploiting such content in accordance with this clause.
5. No additional compensation
   Unless explicitly agreed otherwise in writing, the Professional User acknowledges that any agreed fee or commercial arrangement for the creation of Co-Created Content fully covers their compensation, and they shall not be entitled to any further payment, royalty, or participation in revenues arising from the exploitation of the Co-Created Content by the Company.
6. Moral rights
   To the extent permitted by applicable law, the Professional User waives any moral rights (or agrees not to enforce them) in relation to the Co-Created Content, including the rights of attribution and integrity, as against the Company and its licensees, successors, and assignees.

11. LIMITATION OF LIABILITY

11.1 Company’s Limitation

The Platform is provided for informational and intermediary purposes only. It does not provide medical, health, or professional advice or services.

To the fullest extent permitted by law:

The Company is not liable for:

• The content, quality, or outcome of services provided by Professional Users
• Cancellations, no-shows, or unfulfilled appointments
• Any damages, losses, or injuries arising from Professional User services or interactions with Consumers
• Loss of revenue, profits, contracts, or special, indirect, or consequential damages

The Platform is provided "as is" without warranties of any kind (express or implied), including but not limited to warranties of merchantability, fitness for a particular purpose, or uninterrupted operation.

However, this limitation of liability does not exclude or limit the Company’s liability for:

• Death or personal injury resulting from the Company’s own negligence or wilful misconduct
• Any mandatory statutory liability that cannot be excluded by law

For the avoidance of doubt, the Company is not responsible for, and shall have no liability arising out of, any advice, recommendations, statements, or omissions made by Professional Users during individual sessions, group webinars, hotlines, social media appearances, or in any Professional Content or Co-Created Content.

11.2 Professional User Indemnification

Professional Users agree to indemnify, defend, and hold harmless the Company from and against any and all:

• Claims, liabilities, damages, losses, and judgments
• Legal fees and costs

Arising out of or related to:

• The provision of services by the Professional User
• Breach of these Terms of Use
• Violation of applicable laws or third-party rights
• Negligence or wilful misconduct
• Any claim by a Consumer or third party relating to advice, information, or content provided by the Professional User, including Professional Content and Co-Created Content.

12. FORCE MAJEURE

The Company cannot be held liable for failure to perform obligations if such failure results from events beyond its reasonable control, including but not limited to:

• Acts of God, natural disasters
• War, terrorism, civil unrest
• Labor strikes or shortages
• Disruption of communication networks
• Unavailability of payment processors
• Government actions or legal restrictions

If a force majeure event occurs, the Company will notify affected Professional Users within 15 days and provide an estimate of the expected duration.

13. TERMINATION AND SUSPENSION

13.1 Termination by the Company

The Company may immediately suspend or terminate a Professional User’s access to the Platform, without prior notice, if:

• The Professional User violates these Terms of Use
• The Professional User engages in illegal, fraudulent, or harmful activity
• The Professional User cancels four (4) or more appointments without valid reason
• The Company receives a court order, government directive, or regulatory notice requiring suspension or termination
• Continued provision of services would expose the Company to legal or reputational risk

Written notification will be provided after such action is taken.

13.2 Termination by Professional User

Professional Users may terminate this Agreement at any time by:

• Closing their account via the Platform settings; or
• Sending written notice to the Company at

Upon termination, the Company will delete or return personal data in accordance with the Data Processing Agreement (Appendix 1) and applicable law.

13.3 Effects of Termination

Upon termination:

• The Professional User will no longer have access to the Platform
• All outstanding payments will be settled within a reasonable timeframe
• Data will be handled in accordance with the Privacy Policy and Data Processing Agreement
• Any provisions intended to survive termination (including confidentiality, indemnification, and liability) will remain in effect

14. MODIFICATION OF TERMS

The Company may modify these Terms of Use, the Privacy Policy, and related policies at any time for various legal reasons, including security, intellectual property protection, regulatory compliance, or business reasons.

If a modification substantially and negatively impacts a Professional User’s access to or use of the Platform, the Company will notify the Professional User in advance. The Professional User shall then have the right to terminate the Agreement within 30 days of the modification.

Continued use of the Platform after modifications take effect constitutes acceptance of the modified terms.

Professional Users may save or retain a copy of these Terms at the time of registration.

15. ASSIGNMENT OF RIGHTS

• Professional Users may not assign any rights or obligations under this Agreement without the Company's prior written consent.
• The Company may assign its rights and obligations under this Agreement to any third party at its discretion (e.g., in connection with a merger, acquisition, or sale of business).

16. LAW AND JURISDICTION

16.1 Governing Law

This Agreement is governed by Greek law, even when the Platform is accessed from outside Greece.

16.2 Dispute Resolution

Any dispute arising out of or related to this Agreement shall first be subject to mediation in accordance with the Mediation Regulation of the Greek Ministry of Justice.

If the dispute cannot be resolved through mediation, it shall be resolved exclusively by arbitration conducted in accordance with Arbitration Rules, or by the courts of Athens, which shall have exclusive jurisdiction.

16.3 Severability

If any provision of this Agreement is deemed invalid or unenforceable by a court, the remaining provisions shall remain in full force and effect.

17. ENTIRE AGREEMENT

These Terms of Use, together with the Privacy Policy and Data Processing Agreement (Appendix 1), constitute the entire agreement between the Professional User and the Company and supersede all prior agreements, understandings, or communications (whether written or oral) relating to the subject matter.

No other terms, conditions, or representations shall be binding unless agreed to in writing by the Company.

18. CONTACT INFORMATION

For questions or concerns regarding these Terms of Use, please contact:

Company: VIVIAL LAB LTD
Address: 47 SAMOU STREET ATHENS GREECE
Email: INFO@VIVIANLAB.COM
Tax Office: Amarousion
G.E.MI.: 179795401000
Tax Number: 802625789

19. IMPORTANT NOTICE: RESPECT AND APPRECIATION

The Platform is governed by the values of respect and appreciation. All Professional Users must observe these values in all interactions.

Zero tolerance for:

• Offensive, provocative, or threatening language
• Discrimination based on gender, gender identity, nationality, religion, disability, sexual orientation, or age
• Harassment of any kind

Violations may result in account deactivation and/or legal action.

THESE TERMS OF USE FOR PROFESSIONAL USERS WERE LAST AMENDED ON 5/12/2025

By clicking “I Accept” or by using the Platform, you acknowledge that you have read, understood, and agree to be bound by these Terms of Use, the Privacy Policy, and the Data Processing Agreement (Appendix 1).