Instructions |

Instructions |

Rejuvia

Wellness From the Inside Out

At Rejuvia, we believe that real wellness begins at the cellular level. Our mission is to empower you to take control of your health, vitality, and longevity — right from the comfort of your own home. Born from a passion for cellular rejuvenation and cutting-edge longevity science, Rejuvia was founded by a team driven by one question:

What if anti-aging  and wellbeing could be simplified, safe, and accessible?

Rejuvia Reviews

Rejuvia+ NAD has transformed my skin and my energy.

I noticed the difference within a week — clearer skin, more hydration, and a real boost in daily energy. My under-eyes look less tired, and I feel more confident even without makeup. This kit is a game-changer.
— Tanya G., Essex

My skin is glowing thanks to Rejuvia+ NAD!

I started using Rejuvia+ NAD for the wellness benefits, but the glow it’s given my skin is unreal. My complexion looks brighter, more even, and I’ve had so many compliments. It’s now a staple in my skincare and self-care routine.
— Amelia B., Surrey

NAD+ with real benefits I can feel

I was curious about NAD+ for cellular health, but what surprised me was how much better I feel overall. More clarity, more motivation, and even less afternoon fatigue. Rejuvia+ NAD just works.
— Michelle M, Bristol

The wellness boost I didn’t know I needed.

I didn’t expect to feel this good from such a simple kit. Rejuvia+ NAD gives me clean, natural energy without any crash. I feel healthier, more productive, and my mood has lifted too.
— Sophie M., Bristol

Rejuvia+ NAD makes me feel well — like truly well

It’s hard to explain, but I just feel more balanced since starting this. My sleep improved, I’m more focused during the day, and I recover faster after workouts. It’s like my body and brain are working together again.
— Leah R., Manchester

It’s like switching my brain back on

I was struggling with brain fog and low motivation — a friend recommended Rejuvia+ NAD and I’m so glad I tried it. Within a few doses, I felt mentally switched on and more energised. It’s subtle, but powerful.
— Mark H., Leeds

I feel clear, calm, and more focused

Rejuvia+ NAD has become part of my weekly routine and the mental clarity I get from it is incredible. I feel sharper at work, less overwhelmed, and much more present in my day-to-day life.
— Jess W., London

NAD+ with real benefits I can feel

I was curious about NAD+ for cellular health, but what surprised me was how much better I feel overall. More clarity, more motivation, and even less afternoon fatigue. Rejuvia+ NAD just works.
— Alex T., Brighton

The wellness boost I didn’t know I needed

I didn’t expect to feel this good from such a simple kit. Rejuvia+ NAD gives me clean, natural energy without any crash. I feel healthier, more productive, and my mood has lifted too.
— Sophie M., Bristol

Rejuvia+ NAD makes me feel well — like truly well

It’s hard to explain, but I just feel more balanced since starting this. My sleep improved, I’m more focused during the day, and I recover faster after workouts. It’s like my body and brain are working together again.
— Leah R., Manchester

Backed by Science. Designed for Real Life.

Our home-use NAD⁺ injection kit brings clinical-grade ingredients into a simple, self-managed routine. We’ve carefully designed every part of the Rejuvia experience — from high-purity NAD⁺ vials to sterile packaging and support materials — to ensure it meets the highest standards of quality and ease.

We’re inspired by the work of leading researchers in cellular aging, mitochondrial health, and metabolic resilience, and we aim to translate that science into tools that actually work for real people

Who We Are

Rejuvia is led by a UK-based health and wellness practitioner with a deep-rooted interest in the science of age reversal, cellular optimisation, and holistic wellbeing. With years of experience in aesthetics, client care, and clinical practice, our founder brings a unique balance of scientific curiosity and practical insight to the brand.

We’re not just product developers — we’re users, researchers, and wellness seekers ourselves.

Our Vision

To become the UK’s most trusted name in at-home NAD⁺ therapy, helping people unlock their ultimate wellbeing goals, have tons more energy, sharper focus, and better aging through safe, science-driven solutions

Rejuvia

Inspired by the work of leading researchers in cellular aging, mitochondrial health, and metabolic resilience.

Premium At-Home NAD⁺ Injection Kits

Rejuvia Mini Pen Kit – 500mg

Includes:
Refillable pen with 1 cartridge (500mg)
Smart carry case
Small sharps bin
Ice gel pack for painless injection
Alcohol wipes

Buy Online
Buy Online
Rejuvia Mini Pen Kit – 500mg
Rejuvia Pen Kit – 1000mg

Rejuvia Pen Kit – 1000mg

Includes:
Refillable pen with 2 cartridges (1000mg total)
Smart carry case
Small sharps bin
Ice gel pack for painless injection
Alcohol wipes

Buy Online
Buy Online

Rejuvia Vial Kit 1000mg

Includes:
1 x 1000mg blue vial
Small sharps bin
20 needles
Ice gel pack for painless injection
Alcohol wipes

Buy Online
Buy Online
Rejuvia Mini Pen Kit – 500mg
Rejuvia Mini Pen Kit – 500mg Refill

Rejuvia Mini Pen Kit – 500mg Refill

Includes:
1 cartridge (500mg)
Ice gel pack for painless injection
Alcohol wipes

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Subscribe & Save

Rejuvia Pen Kit – 1000mg Refill

Includes:

2 cartridges (1000mg total)
Ice gel pack for painless injection
Alcohol wipes

Subscribe & Save
Subscribe & Save
Rejuvia Pen Kit – 1000mg Refill

“Rejuvia has been my secret weapon for the last few months.”

“The results have been incredible, my energy is up, my focus is sharp and my anxiety has eased”

“I need to share this with you. Let me tell you my personal results”

“Rejuvia has given me more energy and more focus ”

Wellness From the Inside Out

Rejuvia+ NAD is a clinical-grade, self-administered NAD⁺ (Nicotinamide Adenine Dinucleotide) injection kit designed to help you restore cellular energy, support cognitive clarity, and promote healthy aging — from the comfort of home.

With a powerful 1000 mg NAD⁺ multi-dose vial, sterile delivery components, and easy-to-follow instructions, Rejuvia+ puts the science of longevity in your hands. Whether you’re seeking enhanced focus, better recovery, or deeper wellness, this kit is your trusted ally for inside-out rejuvenation.

Why Rejuvia+?

  • Boosts mitochondrial energy and reduces fatigue
  • May support mental clarity, mood, and sleep quality
  • Encourages cellular repair and longevity pathways
  • Designed for safe subcutaneous use
  • Premium packaging and UK-based quality assurance

Disclaimer:

This is not a prescription product. Not intended to diagnose, treat, or cure any medical condition. Always consult your GP or a healthcare professional before starting any injectable supplement. For adult use only. Store refrigerated after opening.

In The Press

“NAD⁺ supplementation shows promise in supporting healthy ageing and metabolic function.
(Read the review)

National Library of Medicine

“NAD⁺ plays a critical role in DNA repair, metabolism and signalling, and boosting NAD⁺ may support regenerative medicine.”
(Read the review)

National Library of Medicine

“Declining NAD⁺ is linked to ageing, and strategies to restore NAD⁺ may improve mitochondrial health.”
(Read the review)

Nature NPJ Metabolic Health & Disease

“NAD⁺ precursors show exciting therapeutic potential in ageing, metabolic and neurodegenerative disease models.”
(Read the review)

ScienceDirect

“The best NAD supplements, as recommended by experts.”
(Read the feature)

The Independent

“Slowing ageing: scientists discover how NAD energises cells.”
(Read the article)

Medical News Today

“Nicotinamide riboside shows anti-inflammatory properties and potential roles in disease contexts.”
(Read the study)

Science (AAAS