Collection: Longevity & Healthy Aging

Longevity science asks a precise question: which biological processes change as we age, and which can be supported? Over the past two decades, researchers have mapped a set of recurring mechanisms, often called the hallmarks of aging, that include declining NAD+ levels, less efficient mitochondria, slower cellular recycling, and the accumulation of worn-out cells. The Welzo Ultra Purity Longevity & Healthy Aging collection is built around the ingredients most closely studied in that research, so you can shop by mechanism rather than by marketing claim.

What the research on healthy aging focuses on

NAD+ metabolism. Nicotinamide adenine dinucleotide is a coenzyme found in every living cell. It shuttles electrons during energy production and acts as a substrate for sirtuins and PARP enzymes, which are involved in DNA maintenance and cellular signaling. Levels are widely reported to decline with age, which is why precursors such as NMN and liposomal NAD+ sit at the center of most longevity protocols. Our dedicated NAD+ Boosters collection goes deeper on this pathway.

Mitochondrial function. Mitochondria convert nutrients into ATP, the molecule that powers every cell. PQQ is studied for its relationship with mitochondrial biogenesis, and urolithin A for mitophagy, the recycling of damaged mitochondria. See ATP & Mitochondrial Support for the full range.

Cellular housekeeping. Autophagy is the process by which cells clear and recycle damaged components. Spermidine is the most studied dietary autophagy inducer, while fisetin and luteolin are flavonoids researched for their role in clearing senescent cells. Both topics have their own collections: Autophagy Support and Senolytics.

Longevity ingredients in this collection

• NMN Pro in 300mg, 500mg, 1000mg and 1200mg strengths, at 99% purity, so you can start low and build.
• Liposomal NAD+ 1000, which encapsulates NAD+ in phospholipid liposomes designed to protect it through digestion.
• Trans-Resveratrol at 98% purity, the polyphenol most often paired with NMN because of its interaction with sirtuin enzymes.
• TMG (trimethylglycine), a methyl donor that replaces the methyl groups consumed by NAD+ metabolism.
• Spermidine, Fisetin Pro 500mg (98%), Neuronot Luteolin 500mg (98%) and MitoRenew Urolithin A 500mg, four next-generation longevity compounds offered at verified purity.
• PQQ 40mg and natural Astaxanthin for mitochondrial and antioxidant support.
• Longevity Elite, which combines NMN, trans-resveratrol and TMG in a single capsule, and Longevity One (LGX), a twelve-compound daily formula for those who want one bottle rather than six.
• Curated NAD+ & Longevity Stacks such as the Longevity Protocol Stack and Ultimate Longevity Stack, built from the same single-ingredient products at a bundle saving.

How to choose a longevity supplement

If you are new to the category, begin with an NAD+ precursor. NMN Pro 1000 is our most popular strength and the dose referenced most often in human research. Add trans-resveratrol and TMG once you are comfortable, or choose the Longevity Protocol Stack, which bundles all three. If you already run an NMN routine, the natural next layer is cellular housekeeping: spermidine for autophagy, fisetin for senescent-cell clearance, or urolithin A for mitochondrial renewal. Customers who want the simplest possible routine often choose Longevity One, which replaces several bottles with one formula.

Who this collection is for

This range suits adults who take a long-term, evidence-led view of their health: people in their thirties starting a preventive routine, people in their forties and fifties who want to support energy and resilience, and experienced longevity enthusiasts who want verified purity rather than proprietary blends. Many customers pair these supplements with full-body red and near-infrared light from our red light therapy range, which is studied for its interaction with mitochondria.

Why Welzo Ultra Purity

Welzo is a UK-founded health company trusted by more than 200,000 customers and backed by over 27,000 five-star reviews across the Welzo platform. Every Ultra Purity product is made to GMP standards, independently third-party tested for purity and potency, and supplied in vegan capsules with no fillers, binders or bulking agents. Batch certificates of analysis are available, and labels state the exact form, dose and purity of every ingredient. That transparency matters most in longevity, where you are building a routine you intend to keep for decades.

Frequently asked questions

What is the best longevity supplement to start with?

Most people begin with an NAD+ precursor such as NMN, because declining NAD+ is one of the best-documented changes in aging cells. NMN Pro 1000 is the usual starting point, with resveratrol and TMG added later.

Can I combine several longevity supplements?

Yes. NMN, trans-resveratrol and TMG are commonly taken together, and spermidine, fisetin or urolithin A are typically layered on top. Our stacks are designed around these pairings.

How long before I notice a difference?

Longevity supplements support slow biological processes, so consistency over months matters more than any single dose. Most customers commit to a minimum of three months before evaluating.

Explore the full longevity range below, or browse all supplements to see the complete Ultra Purity collection.