Why NAD+ matters
The research behind cellular energy, biological ageing, and the evidence for restoring it.
Less NAD+ every year.
You feel it every afternoon.
NAD+ is the coenzyme found in every living cell — fuelling energy production, DNA repair, and healthy ageing. Levels fall naturally with age, contributing to fatigue, slower recovery, and accelerated cellular decline.
Every batch of RevIVe NAD+ is sourced by our founder — an IV & longevity practitioner — and accepted only with a verified Certificate of Analysis. Injected subcutaneously, nothing is lost to digestion: the dose on the label is the dose your cells receive.
"I only source pharmaceutical-grade, COA-certified NAD+. The quality of what enters your body is the protocol — there's no room for compromise."
— Raquel Eldridge, Founder & Practitioner, RevIVe Your Health
NAD+ Levels by Age
Source: Verdin, E. (2015). Science. NAD+ in aging, metabolism, and neurodegeneration.
Straight to your cells
Pen delivery bypasses digestion entirely — so more of every dose actually reaches your cells.
Verified. Every batch.
COA-certified on every production run. Tested, retested, and verified before it reaches you.
Practitioner-vetted
Sourced by Raquel, our founder — an IV & longevity practitioner — and vetted against the same standard she holds in clinic.
Built on longevity science
Grounded in two decades of peer-reviewed NAD+ research.
Selected peer-reviewed research
- 01Verdin, E. (2015). NAD+ in aging, metabolism, and neurodegeneration. Science, 350(6265).
- 02Covarrubias, A.J. et al. (2021). NAD+ metabolism and its roles in cellular processes during ageing. Nature Reviews Molecular Cell Biology, 22.
- 03Yoshino, J., Baur, J.A. & Imai, S. (2018). NAD+ intermediates: the biology and therapeutic potential of NMN and NR. Cell Metabolism, 27(3).
- 04Katsyuba, E. et al. (2020). NAD+ homeostasis in health and disease. Nature Metabolism, 2.
- 05Elhassan, Y.S. et al. (2019). Nicotinamide riboside augments the aged human skeletal muscle NAD+ metabolome. Cell Reports, 28(7).
- 06Braidy, N. et al. (2019). NAD+ therapy in age-related degenerative disorders: a benefit/risk analysis. Experimental Gerontology, 132.
Research relates to NAD+ biology. RevIVe products support general wellness and are not intended to treat or prevent disease.
Before your first order
What's the difference between vials and pen starter kits?
Vials contain NAD+ in liquid form for those already equipped with the right administration tools. Starter kits include the pen device, cartridge, micro-needles and case — everything needed to begin the at-home wellness protocol, in one box.
Does it hurt?
The pen uses micro-needles designed for near-painless subcutaneous administration — most clients say it's far easier than they expected.
I've never self-administered anything — will I manage?
Yes. Every kit includes Raquel's step-by-step protocol guide, and the clinic is a WhatsApp message away whenever you need a hand.
When will I notice a difference?
Most clients notice a difference in energy and mental clarity within 3–4 weeks of consistent use. Sleep improvements are often reported earliest. Results deepen with continued use over 8–12 weeks.
What does COA-certified mean?
A Certificate of Analysis (COA) is an independent laboratory report confirming the purity and potency of each batch. Every batch of RevIVe NAD+ is COA-certified to 99.5%+ purity before it leaves the facility.
Can I pause or cancel my subscription?
Any time, with no fees. Pause, change or cancel before your next dispatch date — you're in full control.
Is a prescription required?
No prescription is required. RevIVe NAD+ is for adult wellness use. We always recommend consulting a healthcare professional if you have any existing conditions or are on medication.
Can I come in for a consultation?
Yes. Raquel offers in-clinic consultations at our Westcliff-on-Sea clinic for clients who prefer a guided introduction to the protocol before starting at home. WhatsApp us to book.
Pharmaceutical-grade NAD+.
Delivered to your door.
Seen the evidence?
Start small.
Begin with a single kit — one-time purchase, no commitment. Subscribe later if it earns it.
Start with a single kitVials from £140 · Kits from £175 · Free next-day tracked delivery
RevIVe products are intended to support general wellness. They are not intended to diagnose, treat, cure or prevent any disease or medical condition. Consult a healthcare professional before use, particularly if you are pregnant, breastfeeding, taking medication or managing an existing condition.