A lineup of dark blue supplement bottles with silver caps and clear glass flasks
Eight supplement bottles from the brand Somnium are arranged on two white marble risers against a dark navy blue background with dramatic leaf shadows. The bottles are dark blue with silver caps and white text, with some larger clear glass laboratory flasks behind them.
NZ'S #1 NMN BRAND
CELLULAR LONGEVITY SUPPORT
NZ'S #1 LONGEVITY BRAND
SCIENCE BACKED INGREDIENTS
NZ MADE
PREMIUM QUALITY ASSURED
MADE BY GOOD HEALTH
NZ'S #1 NMN BRAND
CELLULAR LONGEVITY SUPPORT
NZ'S #1 LONGEVITY BRAND
SCIENCE BACKED INGREDIENTS
NZ MADE
PREMIUM QUALITY ASSURED
MADE BY GOOD HEALTH
NZ'S #1 NMN BRAND
CELLULAR LONGEVITY SUPPORT
NZ'S #1 LONGEVITY BRAND
SCIENCE BACKED INGREDIENTS
NZ MADE
PREMIUM QUALITY ASSURED
MADE BY GOOD HEALTH
Jay Reeve uses Good Health NEXAGE NMN 500mg

Why Jay Reeve Trusts NexAge

As a broadcaster and high-performance media personality, Jay Reeve knows that energy, focus and performance aren't things you can fake. That's why he's chosen NexAge™ as part of his daily routine — science-backed nutrition designed to support the energy, focus and vitality he needs to show up at his best, every day.

"I want to feel sharp, stay energised, and be ready for whatever's next — that's exactly what NexAge is built for."
— Jay Reeve

SEE WHAT JAY USES

Featured in The New Zealand Herald

Why your healthspan matters more than your lifespan.

Discover the growing science behind healthspan and longevity.

READ THE ARTICLE
Two Good Health NMN supplement bottles, one 150mg and one 500mg, styled with glass laboratory equipment and a clear crystal ball against a dark blue background.
NZ'S #1 NMN

NMN 500MG

A high-strength NAD+ precursor that supports cellular energy and healthy ageing.

High-strength NAD+ production support

Delivers a potent dose of NMN to restore NAD+ levels, the key molecule that naturally declines with age.

Supports cellular energy & mitochondrial function

Helps your cells produce energy more efficiently, supporting stamina and vitality.

Supports healthy ageing at a cellular level

Helps maintain cellular repair processes for long-term metabolic and cognitive health.

NZ's #1 NMN supplement*

Trusted, science-backed formula from Good Health, NZ's most established natural health brand.

Trusted by New Zealanders for nearly 40 years

A faint light gray logo on a white background with the word 'goodhealth' and smaller text 'NATURALLY NEW ZEALAND' beneath it.

NexAge™ is the next evolution from Good Health - bringing modern healthcare science to everyday wellness.

A smiling man in a black wetsuit carrying a yellow and blue surfboard while walking into the ocean waves.

The Best Time to Start Is Now

When should you start supporting healthy ageing? Earlier than most people think. The systems that shape how you age — energy, metabolism, cellular repair — begin changing years before it's visible.

This is the healthspan gap: the difference between how long you live and how many of those years you spend feeling well. The sooner you start, the more energy and clarity you carry into every year ahead.

Because the goal was never just to live longer. It's to feel like you, for longer.

EXPLORE THE RANGE
A set of dark blue supplement jars with silver lids arranged on white pedestals alongside clear glass flasks against a dark studio background with dramatic lighting.
A set of dark blue supplement jars with silver lids arranged on white pedestals alongside clear glass flasks against a dark studio background with dramatic lighting.

BACKED BY SCIENCE

Every NexAge™ formula is built on researched ingredients and advanced delivery technology — not trends.

NMN (Nicotinamide Mononucleotide)

NMN is a direct precursor to NAD+, a key molecule that supports cellular energy production and naturally declines with age. Found in NexAge™ NMN 150mg and NMN 500mg.

Phytosome® Technology

Standard extracts are often poorly absorbed. Phytosome® binds active compounds to phospholipids, significantly improving how much your body actually absorbs and uses. Found in NexAge™ Berberine Advanced+ and Advanced Deep Sleep.

MenaQ7® Vitamin K2

A clinically researched form of Vitamin K2, backed by human studies supporting cardiovascular health — found in NexAge™ Vascular Cardio Care.

Relissa® Lemon Balm

Shown in a double-blind, placebo-controlled human study to significantly improve sleep quality after 3 weeks — found in NexAge™ Advanced Deep Sleep.

FAQs

What is NexAge™?

NexAge™ is Good Health's science-backed longevity range, formulated to support healthy ageing at a cellular level. The range includes formulas for sleep, metabolism, liver health, skin, and cellular energy, using researched ingredients like NMN, Berbevis® Berberine, and Relissa® Lemon Balm.

What is the difference between lifespan and healthspan?

Lifespan is how long you live. Healthspan is how many of those years you spend in good health — feeling strong, energetic, and capable. NexAge™ is designed to support healthspan, not just lifespan, by targeting the biological processes linked to healthy ageing.

When should you start taking longevity supplements?

Research shows the systems that determine how well you age — including cellular energy, metabolism, and muscle strength — begin changing in your 30s and 40s, not your 70s. Starting earlier gives your body more time to benefit from ongoing support.

Where can I buy NexAge™?

NexAge™ is available at Chemist Warehouse stores across New Zealand.

How is NexAge™ different from other supplements?

NexAge™ combines advanced delivery technology with clinically researched ingredients — including Phytosome®-enhanced extracts and MenaQ7® Vitamin K2 — to improve absorption and effectiveness. Each formula targets a specific biological process linked to healthy ageing, rather than offering general wellness support.

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Buy at Chemist Warehouse

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