MASI Longevity Science – NMN, Resveratrol, Spermidine & Fisetin

# MASI Longevity Science > MASI crafts premium German-made longevity supplements, including NMN, Resveratrol, Spermidine, and Fisetin, targeting the core causes of aging. Independently tested in Switzerland, all formulas use pure, certified raw materials for maximum safety, potency, and absorption. Vegan, allergen-free, and produced under strict German standards, MASI’s mission is to deliver clinically effective dosages for a longer, healthier life. The store serves anyone focused on proactive longevity, especially adults over 40 seeking to enhance vitality, slow aging, and maintain health with transparent, research-backed supplements. All products are made exclusively from EU-sourced ingredients — never from China or India — and lab-tested for purity. Subscriptions guarantee ongoing supply and can be canceled at any time. ## Products - [/collections/premium-longevity-supplements](https://masi.eu/collections/premium-longevity-supplements) — Full range of longevity supplements for anti-aging health. - [/products/nmn](https://masi.eu/products/nmn) — NMN to boost cellular vitality and energy. - [/products/resveratrol](https://masi.eu/products/resveratrol) — Resveratrol reactivating youth genes for healthy aging. - [/products/spermidine](https://masi.eu/products/spermidine) — Spermidine supports weight management and slows aging. - [/products/fisetin](https://masi.eu/products/fisetin) — Fisetin clears old cells for body renewal. - [/products/premium-hair-complex](https://masi.eu/products/premium-hair-complex) — Comprehensive hair supplement for growth and strength. ## Policies - [/policies/privacy-policy](https://masi.eu/policies/privacy-policy) — MASI’s privacy practices and data protection. - [/policies/refund-policy](https://masi.eu/policies/refund-policy) — Refunds and returns for all purchases. - [/policies/shipping-policy](https://masi.eu/policies/shipping-policy) — Delivery info and shipping conditions. - [/policies/subscription-p