Legal notice

Last updated: July 14, 2026

Commercial rules: Terms of Service.

1. Website operator

MASI SUNRISE, SLU (MASI Longevity Science)
Avinguda de Pau Casals 14, 08021 Barcelona, Spain
VAT B16741456
Barcelona Mercantile Registry: Volume 47957, Folio 76, Section 8, Sheet B-567478, entry 1
support@masi.eu · +34 648 63 18 42
Store hosted by Shopify

MASI group. MASI SUNRISE, SLU is part of the MASI group of companies, headed by MASI AG. The group operates the MASI, American Premium Vitamins and Alanta brands and their websites, including masi.eu, americanpremium.com and alanta.eu. The group's parent company is MASI AG, Bahnhofstrasse 21, 6300 Zug, Switzerland (UID CHE-434.932.636, Commercial Register Zug CH-170.3.052.112-4). MASI SUNRISE, SLU, Avinguda de Pau Casals 14, 08021 Barcelona, Spain (VAT B16741456) is a company within the MASI AG group. Group membership does not change who you contract with: the company named in this section is your counterparty for orders placed on this website, and is responsible for them.

2. Website use

Users must use masi.eu lawfully and must not interfere with the website, submit false information, introduce malicious code, or use MASI content without authorization.

3. Intellectual property

Website content, branding, text, graphics, images, and software are owned by or licensed to MASI. Unauthorized reproduction, distribution, resale, modification, or commercial exploitation is prohibited.

4. Health disclaimer

Content and statements on this website have not been evaluated by the Food and Drug Administration. Products are not intended to diagnose, treat, cure, or prevent any disease. Consult a qualified healthcare provider when making medical decisions.

5. Complaints

Email support@masi.eu. Include name, order or subscription number, issue, and requested resolution. MASI responds in a durable form. Spanish consumer complaints: as soon as possible and no later than 15 days after submission where that rule applies. Court rights under mandatory law remain available.

6. Applicable law

Spanish law governs this website. Mandatory consumer protections remain effective. See Terms §18.

7. Policies

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