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News
Ice baths vs saunas for longevity
7 min read

Ice Baths vs Saunas: Which Wins for Longevity?

Your social media feed is probably full of ice bath warriors and sauna evangelists, each claiming their method is the ultimate longevity hack. Wim Hof disciples swear by cold exposure, while Finnish sauna enthusiasts point to decades of research on heat therapy. So which extreme actually delivers better results for healthy aging? The answer might surprise you.

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NMN vs NAD+ supplement science
5 min read

NMN vs NAD+: The Science Behind the Hype

Let's get straight to the point about NMN and NAD+ supplements – what they actually do, why your body can't absorb NAD+ directly, and how to choose the right longevity supplement for your needs.

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PQQ vs CoQ10 for mitochondrial health
6 min read

PQQ vs CoQ10: The Mitochondrial Power Duo

You've probably heard of CoQ10 – it's been the darling of the supplement world for decades. But there's a newcomer that's got longevity researchers excited: PQQ. While most people debate which one is "better," the real question is why you'd choose between them when they work together like a perfectly orchestrated team.

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Longevity & Healthy Ageing

Ageing well isn't about defying the years. It's about making the most of them. The decisions you make now, the support you give your body, compound over time. Start where you are. Explore the Keeper range below. 

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Longevity & Healthy AgeingGut Health & BloatingMuscle Strength & RecoverySkin Health & BeautyEnergy & FatigueLiver Health & Support

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Longevity & Healthy AgeingGut Health & BloatingMuscle Strength & RecoverySkin Health & BeautyEnergy & FatigueLiver Health & Support

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  • Energy & vitality
  • Ageing support
  • Sharper focus
Keeper Complete Longevity NAD+ supplement powderKeeper Complete Longevity NAD+ supplement powder
Complete Longevity
Sale priceFrom $99.00
  • Skin elasticity & hydration
  • Hair & nail strength
  • Muscle tone & recovery
Keeper Body Boost creatine and collagen powder sachetsKeeper Body Boost creatine and collagen powder sachets
Body Boost
Sale price$99.00
  • Energy & vitalityEnergy & vitality
  • Ageing supportAgeing support
  • Sharper focusSharper focus
Complete Longevity 5-Day TrialKeeper Complete Longevity NAD+ supplement powder
Complete Longevity 5-Day Trial
Sale price$10.00

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"I feel so much better since I ditched my daily multivitamin and switched. I have energy. My stomach isn’t grumbling anymore. It gets delivered every month. It really couldn’t be any easier."

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We love questions

Which Keeper product is best for healthy ageing?

Complete Longevity is our dedicated longevity formula, with 18 active ingredients for NAD+ support, cellular energy and cellular maintenance. Body Boost complements it with collagen and creatine for skin and muscle as you age.

What are the best supplements for longevity?

There is no single supplement proven to extend human lifespan. Longevity supplements typically focus on areas such as cellular energy, NAD+ levels, mitochondrial function and healthy ageing. Complete Longevity combines 18 active ingredients, including NMN, NR, spermidine, CoQ10 as ubiquinol, PQQ, Ca-AKG, taurine and glycine, providing broad nutritional support across multiple longevity pathways.

What is NAD+ and why is it important for healthy ageing?

NAD+ is a coenzyme found in every cell and plays an essential role in cellular energy metabolism and other cellular processes. Levels can decline with age, which has driven interest in NAD+ precursors. Complete Longevity contains two NAD+ precursors, 500 mg NMN and 150 mg NR, rather than relying on a single precursor.

What is the difference between NMN, NR and NAD+?

NAD+ is a molecule used by cells in energy metabolism and other cellular processes. NMN and NR are precursors the body can use to produce NAD+. Complete Longevity provides both, with 500 mg NMN and 150 mg NR per daily serve, alongside other ingredients supporting cellular and mitochondrial function.

What is healthspan and how is it different from lifespan?

Lifespan describes how long you live. Healthspan describes the years you spend in good health while maintaining physical and cognitive function. Supporting healthspan therefore extends beyond supplements to areas such as muscle strength, exercise, nutrition, sleep and metabolic health. Keeper's approach to longevity is focused on supporting the quality of the years you live, not simply the number.

What ingredients should I look for in a longevity supplement?

Common longevity ingredients include NAD+ precursors such as NMN and NR, alongside ingredients such as spermidine, CoQ10, PQQ, Ca-AKG, taurine and glycine. Complete Longevity combines these within an 18 ingredient daily formula rather than requiring multiple individual supplements.

At what age should I start taking a longevity supplement?

Complete Longevity is designed for adults aged 18 and over. NAD+ levels tend to decline with age, and many people become interested in healthy ageing support from their 30s onwards, but there is no set age to start. If you have a medical condition or take prescription medication, speak with your healthcare professional before use.

Can I take Complete Longevity and Body Boost together?

Yes. Complete Longevity and Body Boost are designed to work together as part of one daily routine.

How long before I notice a difference with Complete Longevity?

Individual responses vary. Some customers may begin to notice changes from around week 2, while others may notice them sooner or take longer. Complete Longevity is designed for consistent daily use, so results can build over time rather than appearing all at once.

Can I try Complete Longevity before committing?

Yes. A Complete Longevity 5 Day Trial is available with free shipping.

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