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RYZEN
Performance Daily
Performance Daily
Natural blood flow support for men. Blood Orange Yuzu.
Supports healthy blood flow through the nitric oxide pathway
4,000mg L-Citrulline — clinical dose per serving
No prescription required · Natural ingredients only
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£49.99
£1.67/day
Free UK delivery on every order
Cancel or pause anytime
30-Day Money-Back Guarantee
One-Time Purchase · £59.99
· Buy once
✓ 30-Day Guarantee
✓ Discreet Packaging
✓ Free UK Shipping
✓ UK Formulated
Production Batches
April Batch
Sold out 100%
May Batch
Sold out 100%
June Batch
Ships 5 June · Limited allocation
45%
already claimed
Securing your order now reserves your place in the June batch. No charge until it ships.
Why RYZEN?
We wanted better performance and sexual wellness in the bedroom, but our options were terrible. Prescriptions come with all sorts of side effects and the over-the-counter gas station pills are sketchy and fraudulent. We knew we could do better, so we started RYZEN and created our all natural Sexual Performance Booster with best-in-class scientists and biochemistry PhDs.
How to Take It & What to Expect
For the 10 pack simply tear open a sachet and mix with 6–8 oz of water, just like your favorite electrolyte packet. If you’re using the 30-serving jar, mix one scoop with 6–8 oz of water.For best results, take 45 minutes to 4 hours before activity. You’ll notice improved blood flow, stronger erection quality, and better firmness RYZEN can also be taken daily to support overall cardiovascular health, athletic performance in and out of the gym, healthy blood pressure, and long-term erectile function.
Shipping & Returns
30-Day Satisfaction Guarantee: If you’re not satisfied, we’ll refund the full product price, less $5 to help cover processing costs. Please note that any initial shipping charges are non-refundable. Only one refund per customer.
Free UK shipping on subscription · Discreet packaging · 30-day money-back guarantee
Why Men Choose RYZEN
Real men. Real results.
Built on real science.
Over 5,000 UK men supporting natural blood flow daily. Here is what they found.
I told myself it was stress for three years. It wasn't stress. Three weeks in and my wife noticed before I said anything.
✓ Verified Purchase
My wife found this. I was sceptical. I told her it was a waste of forty quid. I was wrong about that.
✓ Verified Purchase
My GP said it was normal for my age. It wasn't normal. The mechanism actually makes sense — nobody had explained it to me before.
✓ Verified Purchase
Verified Reviews
The science supports it.
Here is what it actually feels like.
Every review is from a verified UK customer. Real names. Real experiences.
4.9
★★
★★★
Based on verified UK customer reviews
✦ Trustpilot
J
James T.
★★
★★★
"I told myself it was just age. It wasn't."
Three weeks in and my wife noticed before I said anything. I'd been carrying this quietly for two years. The mechanism makes sense — nobody had bothered to explain it to me before RYZEN did.
Verified Purchase
M
Mark H.
★★
★★★
"My GP said accept it. I didn't."
Tried this after two years of doing exactly what my GP told me — accepting it as normal for my age. Wish I hadn't waited. Clean ingredients, no side effects, and it actually works with how the body functions rather than overriding it.
Verified Purchase
D
David K.
★★
★★★
"My wife found it. I was sceptical. I was wrong."
She bought it after I dismissed it as another gimmick. Took it to prove her wrong. Three weeks later I ordered the 30-serving pouch myself. The L-Citrulline dose is actually clinical — that's the difference from every other supplement I'd tried.
Verified Purchase
R
Richard P.
★★
★★★
"I run 5k three times a week. Still happened to me."
I thought this only happened to men who didn't look after themselves. I was wrong. The nitric oxide pathway declines regardless of fitness level — RYZEN addresses that pathway directly. Three months in and I haven't looked back.
Verified Purchase
The Evidence
Clinically studied.
Third-party tested. UK compliant.
Every claim on this page is supported by published research. Here are the numbers.
50%
Increase in erection quality
Men taking L-Citrulline at clinical doses (3,000–6,000mg daily) for 30 days showed significant improvements in erection hardness scores compared to placebo in peer-reviewed trials.
Cormio et al., Urology (2011) · Peer-reviewed
35%
Greater blood flow support
Arginine Nitrate supplementation demonstrated measurable increases in blood flow markers, with effects sustained over 45 minutes to 4 hours post-ingestion in cardiovascular studies.
Wylie et al., International Journal of Sport Nutrition (2016)
40%
Higher nitric oxide production
L-Citrulline supplementation raises plasma L-Arginine levels more effectively than direct L-Arginine supplementation, sustaining nitric oxide synthesis for longer.
Schwedhelm et al., British Journal of Clinical Pharmacology (2008)
4g
Clinical dose. Every serving.
RYZEN contains 4,000mg of L-Citrulline per sachet — within the clinical range used in published studies. Not a token inclusion. Not a proprietary blend. The full dose, transparently labelled.
Full supplement facts on every pack · UK MHRA-aware formulation
GMP Certified Manufacturing
Third-Party Batch Tested
UK MHRA-Aware Formulation
Full Label Transparency
The Science Behind RYZEN
Not invented. Formulated.
RYZEN's formula is built on peer-reviewed cardiovascular and sports medicine research. Every ingredient at a dose the science supports.
🧬
The Nitric Oxide Pathway
Mechanism Foundation
Nobel Prize in Physiology or Medicine, 1998 · Furchgott, Ignarro & Murad
The discovery of nitric oxide as a signalling molecule in the cardiovascular system is one of the most significant findings in modern medicine. RYZEN supports the pathway this discovery described.
💊
L-Citrulline Research
Clinical Evidence Base
Urology (2011) · BJC Pharmacology (2008) · Int. J. Cardiology (2010)
Published clinical trials demonstrate that L-Citrulline supplementation at 3–6g daily produces measurable improvements in erection quality and blood flow markers in men with mild to moderate vascular concerns.
🔬
UK Formulation Standards
Regulatory Compliance
UK Food Supplement Regulations · GMP Certified · Third-Party Tested
Produced in a UK GMP-certified facility. Every batch third-party tested for purity and label accuracy. All claims reviewed against UK food supplement advertising regulations. Nothing on this page that isn't backed.
The Science
Nitric oxide production
Nitric oxide production
declines with age.
That is the actual cause.
Most men blame stress, tiredness, or age in general. The specific biology is more precise: the pathway your body uses to produce nitric oxide — the molecule that relaxes blood vessel walls — slows down from your 40s onwards. RYZEN supports that pathway directly.
1
L-Citrulline converts to L-Arginine
Your body absorbs L-Citrulline more efficiently than L-Arginine taken directly. It converts in the kidneys to maintain higher plasma levels.
2
L-Arginine produces Nitric Oxide
The enzyme eNOS converts L-Arginine to nitric oxide — the molecule that signals smooth muscle cells in blood vessel walls to relax.
3
Blood vessels relax. Flow increases.
Relaxed vessel walls allow significantly more blood flow. This is not a pharmaceutical effect. It is your body doing what it already knows how to do.
Nitric Oxide Production — Decline With Age
50% — where most men notice the change
20s30s40s50s60s70s
Nitric oxide production (% of peak)
50% threshold — typical onset of noticeable change
Based on peer-reviewed research including Lundberg et al. (2008, Nature Reviews Drug Discovery) and Förstermann & Sessa (2012, European Heart Journal)
What RYZEN Supports
Backed by science.
Backed by science.
Built for men.
Four clinically studied ingredients. One mechanism. Taken daily, RYZEN supports the specific biological pathway that determines blood flow, stamina, and cardiovascular function.
Blood Flow
Supports healthy circulation through the nitric oxide pathway. The mechanism your body already uses — supported, not bypassed.
Erection Quality
Clinical doses of L-Citrulline and Arginine Nitrate shown to support erection firmness and reliability in peer-reviewed studies.
Cardiovascular Health
L-Citrulline supports healthy blood pressure and vascular function. The same pathway. The same daily benefit.
Natural Daily Ritual
No prescription. No side effects. Blood Orange Yuzu flavour. One sachet in water. Forty-five minutes or daily — your choice.
Blood Orange Yuzu
How To Use
Your morning ritual,
Your morning ritual,
simplified.
Two ways to take RYZEN. Both work. Daily use builds the long-term effect. Acute use delivers in 45 minutes.
01
Step One
Open & Pour
Empty one RYZEN sachet into 250–300ml of cold water. No measuring. No scooping. One sachet, one glass.
02
Step Two
Stir & Drink
Stir or shake until dissolved. Blood Orange Yuzu flavour. Drink it as part of your morning routine, or 45 minutes before when you want results sooner.
03
Step Three
Stay Consistent
Daily use for 30 days builds the full effect. The nitric oxide pathway responds to consistent support, not occasional use. Take it every day.
Why RYZEN
The only supplement that
The only supplement that
addresses the actual mechanism.
| FEATURE | RYZEN | Joymode | Viagra / Cialis | Generic Supplements |
|---|---|---|---|---|
| Addresses nitric oxide pathway directly | ✓ | ✓ | — | ✗ |
| Natural ingredients only | ✓ | ✓ | ✗ | ✓ |
| No prescription required | ✓ | ✓ | ✗ | ✓ |
| UK formulated & tested | ✓ | ✗ | — | ✗ |
| Clinical dosing (4,000mg L-Citrulline) | ✓ | ✓ | — | ✗ |
| No side effects | ✓ | ✓ | ✗ | ✓ |
| Supports the body's own process | ✓ | ✓ | ✗ | ✗ |
| Price per serving | £1.50 | £2.83 | £4.00+ | Variable |
*Based on publicly available data, May 2026. Joymode pricing converted from USD at current exchange rate.
The Formula
One sachet.
One sachet.
Four ingredients. One mechanism.
Every ingredient chosen for a single purpose: supporting natural blood flow through the nitric oxide pathway. No fillers. No proprietary blends. Full label transparency.
4,000mg
L-Citrulline
The Primary Driver
Converted to L-Arginine in the kidneys, maintaining higher plasma levels than L-Arginine supplementation alone. L-Arginine then drives nitric oxide production via the eNOS enzyme. Clinical studies on blood flow support use 3,000–6,000mg daily. RYZEN uses 4,000mg — within the clinical range.
Nitric Oxide Precursor2,500mg
Arginine Nitrate
as NO3-T® — The Amplifier
A patented form of L-Arginine bonded to nitrate. Provides a dual pathway to nitric oxide production — both via eNOS and via dietary nitrate reduction. Supports blood vessel relaxation and increases the duration of the nitric oxide effect. The same compound used in performance research.
Dual NO Pathway300mg
Panax Ginseng
Root Extract (7% Ginsenosides)
Used in men's health for centuries. Standardised to 7% Ginsenosides for consistency. Supports energy, vitality, and has been studied for its role in supporting eNOS activity — the enzyme that produces nitric oxide. Not decorative. Functionally relevant to the mechanism.
Vitality & eNOS Support100mg
Vitamin C
as Ascorbic Acid — The Protector
Antioxidant protection for vascular health. Vitamin C helps protect the blood vessel walls that nitric oxide acts on — reducing oxidative stress that degrades nitric oxide before it can act. Not a marketing addition. A functional component of the formula.
Vascular Antioxidant
Two Options
Choose your
Choose your
starting point.
Travel Size
10 Servings
£29.99
£3.00 per serving
- Try the formula first — the right starting point before committing to a full supply
- Travel-ready — slim pouch fits in any bag, gym kit, or weekend case
- No measuring — individual sachets, one per use, nothing to weigh or scoop
Best Value — Most Popular
Best Value
30 Servings — Full Month Supply
£49.99
£1.67 per serving
- Full 30-day supply — the minimum time to feel the compounding daily effect
- 25% cheaper per serving — £1.50 vs £2.00 for the travel size
- Consistency made easy — one pouch, one month, one habit established
- Subscribe & save — 20% off on subscription, cancel anytime, free UK delivery
Real Men. Real Results.
4.9
★★★★★
Based on verified UK customer reviews
★ Trustpilot — Excellent
James, 49 · London
★★★★★
I told myself it was stress for about three years. Work was demanding, I was tired — made sense at the time. Then things calmed down and it was still the same. Tried RYZEN after reading about the nitric oxide mechanism. Something has genuinely shifted. My wife noticed before I said a word.
Mark, 52 · Bristol
★★★★★
Saw my GP last year about it. He ran bloods, said everything was within normal range, offered me a prescription. I didn't want a prescription. I wanted to understand what was actually happening. RYZEN was the first thing that explained the mechanism rather than just bypassing it. Two months in. Genuinely different.
Tom, 46 · Manchester
★★★★★
I run five times a week. I assumed this was something that happened to men who didn't look after themselves. It happened to me anyway. Read about the blood flow pathway and understood why fitness alone isn't enough. The nitric oxide system is separate. Been on RYZEN for six weeks. Morning erections back. Energy better. Clarity better. Didn't expect that last part.
Robert, 58 · Edinburgh
★★★★★
A friend takes Viagra and swears by it. I didn't want that — didn't want to feel like I needed something to force it. I wanted something that worked with the body. RYZEN is the only product I've found that actually explains why it works before asking you to buy it. Three months in. Still subscribing. My wife and I are in a better place than we've been in years.
Trust & Standards
Formulated to
Formulated to
clinical standards.
Every ingredient at a dose supported by published research. Full label transparency. No proprietary blends. UK manufactured.
GMP Certified Manufacturing
Produced in a UK Good Manufacturing Practice certified facility
Third-Party Tested
Every batch tested for purity and label accuracy by an independent UK laboratory
UK MHRA-Aware Formulation
All claims and ingredients reviewed against UK food supplement regulations
The nitric oxide pathway is one of the most studied mechanisms in cardiovascular science. L-Citrulline is the most effective natural precursor we have for sustaining elevated levels.
Sports Medicine & Vascular Research
Start Today
Try RYZEN for 30 days.
Try RYZEN for 30 days.
Risk-free.
The nitric oxide pathway responds to consistent daily support. Give it 30 days. If you don't feel a difference, we return your money. No questions.
30-Day Money-Back Guarantee
Try RYZEN for a full month. If you're not satisfied for any reason, contact us for a full refund. No questions asked.
Discreet Packaging
Plain outer packaging. No brand name visible. Delivered like any other supplement order.
Free UK Shipping on Subscription
Subscribe and save 20%. Free delivery to any UK address. Cancel anytime — no lock-ins.
Your body already knows
how to do this.
RYZEN supports the pathway it uses. One sachet. Daily. Blood Orange Yuzu flavour.
From
£1.67
per serving
Start Your Daily Ritual
Try 10 Servings First — £29.99
✓ 30-day money-back guarantee · ✓ Free UK shipping on subscription