NMN has become one of the most discussed longevity molecules — but what does the peer-reviewed science actually say? We break down the key clinical trials and help you separate evidence from marketing claims.
Read on the Journal →Engineered Wellness
Supplements built on science, not hype
Premium formulations backed by peer-reviewed research. Manufactured in the UK to GMP code of practice. Zero fillers, zero compromise.
✦ GMP Manufactured
✦ 3rd Party Tested
✦ Vegan Friendly
✦ Free UK Delivery
✦ UK Seller
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Manufactured in the UK
Free UK Delivery
3rd-Party Lab Tested
Our Philosophy
Three principles. Zero exceptions.
Every ZENOA product is built on the same uncompromising foundation.
Evidence First
We only formulate with ingredients supported by peer-reviewed research. No proprietary blends, no trendy fillers.
Every ingredient is dosed at clinically relevant levels. We reference specific studies for each formulation on our product pages.
Radical Transparency
Full ingredient lists on every label. Exact dosages per capsule. No hidden fillers like rice flour or magnesium stearate.
Compare our NMN label to any competitor — we have 2 ingredients. Most have 5-8 including bulking agents and flow aids.
Engineered Delivery
From delayed-release capsules to bioavailability enhancers like black pepper extract, we engineer how nutrients reach your body.
Our NMN uses HPMC delayed release technology. Our Lion's Mane includes Black Pepper for up to 2000% absorption enhancement.
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Product Range
Curated for the modern optimiser
Each formula targets a specific pillar of wellness — longevity, cognition, resilience, and vitality.
Bestseller
VeganNo FillersDelayed Release
Longevity
NMN 500mg
60 Delayed Release Capsules · 2 Month Supply
Pharmaceutical grade β-NMN. Direct NAD+ precursor in a delayed release capsule for enhanced absorption. Zero fillers.
+38% blood NAD+ in 12 weeks
Igarashi et al., NPJ Aging 2022 — 250mg/day chronic NMN study
Only 14 left — restocking in 2 weeks
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−15%
Available
Vegan12:1 Extract+Vitamin C
Cognition
Lion's Mane Extract 1500mg
120 Capsules · 4 Month Supply
12:1 concentrated extract with 30% polysaccharides. Enhanced with Acerola Vitamin C and Black Pepper. Just 12p/day.
Cognitive scores improved over 16 weeks
Mori et al., Phytother Res 2009 — daily H. erinaceus in adults aged 50-80
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−15%
Pipeline
Launching across 2026
Each new SKU goes through formulation, third-party testing, and label review before release. We'd rather ship two products well than ten that compromise.
Magnesium Complex
Resilience
CoQ10 Plus 300mg
Longevity
Vitamin D3 + K2 MK-7
Vitality
Resveratrol 150mg
Longevity
5-Mushroom Complex
Cognition
NAC 600mg
Resilience
Stacks
Engineered combinations
Synergistic bundles designed to work together — backed by complementary mechanisms of action.
Best for 40+
The Longevity Stack
NMN + Resveratrol — the Sinclair-inspired combination. NMN provides the NAD+ precursor while Resveratrol activates sirtuins. Complementary pathways for cellular health.
NMN 500mg
Resveratrol 150mg
£34.99
£39.98
Save 12%
Focus & Clarity
The Cognitive Stack
Lion's Mane + 5-HTP — neurogenesis meets neurotransmitter support. Lion's Mane stimulates NGF for long-term plasticity while 5-HTP supports serotonin for mood and focus.
Lion's Mane 1500mg
5-HTP
£32.99
£37.98
Save 13%
Customer Reviews
What our customers say
Verified purchases from real customers on eBay.
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100% Positive Feedback · 8+ Years
★★★★★
"Arrived quickly, well packaged and as described. Great quality product — the label looks genuinely premium. Will be ordering again."
★★★★★
"One capsule a day and it lasts 4 months — incredible value. The added Vitamin C and Black Pepper show they've thought about the formulation properly."
★★★★★
"Clean ingredients, no fillers, and the delayed release capsule is a nice touch. Hard to find this quality at this price point in the UK."
●
"Two ingredients done properly beats eight done cheaply."
From the Founder
I started ZENOA because I couldn't find a UK supplement I'd take myself.
Walk into any high-street pharmacy and you'll find shelves of NMN, Lion's Mane and magnesium. Pick up a bottle and read the label — bulking agents, flow agents, undisclosed sourcing, doses lower than the studies they cite.
ZENOA exists for the people who actually read the back of the bottle. Every formulation starts with the peer-reviewed dose, sourced from manufacturers we've audited, made in the UK to GMP code of practice. If a filler doesn't earn its place, it doesn't go in.
This is a small operation, run by hand. You're not buying from a private-equity holding company — you're buying from someone who takes the same capsules every morning.
Ulas Celik
Founder · ZENOA Wellness
Independent Review
Formulations under independent science review
We're commissioning a registered nutritionist (RNutr) to audit each formulation against current peer-reviewed evidence. The reviewer's name and credentials will be published here once the review concludes. We'd rather wait and name a real expert than fill this space with marketing.
Reviewer search in progressThe Science
NAD+ declines with age. NMN can help restore it.
Nicotinamide Adenine Dinucleotide (NAD+) is a coenzyme present in every living cell. It's essential for cellular energy production, DNA repair, and gene expression regulation.
Research shows NAD+ levels decline by approximately 50% between ages 40 and 60. NMN (Nicotinamide Mononucleotide) is a direct biosynthetic precursor — the body converts NMN into NAD+ through a well-characterised enzymatic pathway.
ZENOA NMN uses a delayed release HPMC capsule designed to bypass stomach acid degradation and deliver intact NMN to the small intestine.
Key References
[1]Yoshino J, et al. NAD+ Intermediates: The Biology and Therapeutic Potential of NMN and NR. Cell Metabolism, 2018;27(3):513-528.
[2]Shade C. The Science Behind NMN. Integr Med (Encinitas), 2020;19(1):12-14.
[3]Igarashi M, et al. Chronic NMN supplementation elevates blood NAD+ levels in healthy older men. NPJ Aging, 2022;8(1):5.
~50%
NAD+ Decline
Average reduction between ages 40–60, affecting cellular energy and repair.
500mg
Clinical Dose
Pure β-NMN per capsule, with zero fillers or bulking agents.
DR
Delayed Release
HPMC technology targets intestinal absorption for improved bioavailability.
Learn
Knowledge is the best supplement
Evidence-based guides to help you make informed choices.
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Read on the Journal →Watch & Learn
From the experts we trust
Independent researchers discussing the molecules in our range.