Mendurance vs Blue Power: Honest Comparison (2026)

By Blue Power Research Team  ·  13 June 2026  ·  8 min read

Mendurance is one of the most visible men's health supplements in the UK — available in Boots, Superdrug, Tesco, Sainsbury's, and ASDA. With "mendurance" getting over 2,100 monthly UK searches and "mendurance max" adding another 1,100, it's clear that men are looking for honest reviews before buying. This comparison breaks down how Mendurance Max stacks up against Blue Power across every metric that matters: ingredients, dosages, clinical evidence, price per serving, and transparency.

Full disclosure: This article is published by Blue Power. We've worked to make this comparison factual and evidence-based — every ingredient claim is checkable, every dosage is listed, and where Mendurance has genuine advantages, we say so. You can verify Mendurance's ingredients on their official website or on any retailer product page.

How Does Mendurance Compare to Blue Power?

The most important thing to understand is that these are fundamentally different types of supplement. Mendurance Max is designed as an "as-needed" product — you take 2 capsules 40 minutes before activity. Blue Power is a daily tablet intended to be taken as part of a varied diet and healthy lifestyle. This difference in approach shapes everything about the formulations.

Where Blue Power Wins: Shilajit & Tongkat Ali

The biggest difference is ingredients that Mendurance simply doesn't include: Shilajit and Tongkat Ali. These are the two compounds with the strongest clinical evidence for testosterone support in the supplement space.

Shilajit: RCT Evidence for the Ingredient

In a 2016 double-blind, placebo-controlled RCT (Pandit et al., n=75, men aged 45–55), purified shilajit at 500mg/day was associated with a 20.45% change in total testosterone and 19.14% in free testosterone over 90 days (Pandit et al., Andrologia, 2016). This trial finding cannot be transferred to Blue Power as a label claim; Blue Power's shilajit dose is 50mg. Mendurance does not contain shilajit. For the full evidence breakdown, see our Shilajit UK guide.

Tongkat Ali: Meta-Analysis of 5 RCTs

A 2022 meta-analysis of 5 RCTs found tongkat ali was associated with a statistically significant change in total testosterone (SMD = 1.352, 95% CI: 0.565–2.138, P = 0.001) — classified as a "large" effect size (Leisegang et al., Medicina, 2022). In a separate RCT (Talbott et al., 2013, n=63), cortisol was reduced by 16% and testosterone changed by 37% over 4 weeks (Talbott et al., JISSN, 2013). These are trial findings for the ingredient and cannot be transferred to Blue Power as label claims; Blue Power's tongkat ali dose is 50mg. Mendurance does not contain tongkat ali. See our Tongkat Ali UK guide.

Where Mendurance Wins: Higher Individual Doses & Retail Availability

Credit where it's due — Mendurance Max has genuine advantages in certain areas:

Higher L-Arginine Dose

Mendurance Max provides 300mg L-Arginine per serving vs Blue Power's 50mg. L-Arginine is the direct precursor to nitric oxide, and while clinical studies typically use 3–6g/day, a higher dose in a supplement formula still provides more substrate for NO production. If L-Arginine dosage is your primary concern, Mendurance delivers 6x more per serving.

Higher Maca Root Dose

Mendurance Max provides 800mg Maca Root vs Blue Power's 50mg. Maca has clinical evidence for subjective improvements in sexual desire (though not through hormonal changes). The 800mg dose is closer to the amounts used in clinical trials. For a deep dive into maca forms, see our maca powder vs maca root guide.

High-Street Availability

You can buy Mendurance at Boots, Superdrug, Tesco, ASDA, and Sainsbury's — major UK retailers. This convenience factor is a real advantage. Blue Power is currently available direct from trybluepower.co.uk only.

Caffeine for Immediate Effect

Mendurance Max contains 180mg caffeine per serving — roughly equivalent to two espressos. This provides an immediate stimulant effect (alertness, energy, blood flow) within 30–40 minutes. Blue Power contains no caffeine by design — it's formulated for daily use where consistent caffeine intake is unnecessary and potentially disruptive to sleep.

The Caffeine Question: Stimulant vs Daily Support

This is the fundamental philosophical difference between the two products. Mendurance Max is an "event-based" supplement — take it when you need it, and the 180mg caffeine gives you a noticeable boost within 40 minutes. Blue Power is a "foundation" supplement — take it daily as part of a varied diet and healthy lifestyle over weeks and months.

Evidence Comparison: Which Ingredients Have Clinical Data?

Who Should Choose Mendurance?

Mendurance Max may be the better choice if you:

• Want an as-needed supplement rather than a daily tablet
• Respond well to caffeine and want an immediate energy/alertness boost
• Prefer to buy from high-street shops (Boots, Tesco, etc.)
• Want higher individual doses of L-Arginine (300mg) and Maca Root (800mg)
• Are interested in Saw Palmetto (prostate support) and Fenugreek

Who Should Choose Blue Power?

Blue Power may be the better choice if you:

• Want a daily supplement that builds consistent support over time
• Want to look at the cited trial evidence for individual ingredients — shilajit and tongkat ali both have published RCTs and/or meta-analyses (see references)
• Want a caffeine-free formula that won't disrupt sleep or interact with your coffee intake
• Are interested in Horny Goat Weed alongside L-Arginine in the formula
• Value Vitamin C, which contributes to the reduction of tiredness and fatigue

Frequently Asked Questions

The Bottom Line

Mendurance Max and Blue Power are different products for different needs. Mendurance is a stimulant-based, as-needed supplement — good for men who want an immediate caffeine-driven boost and prefer buying from Boots or Tesco. Blue Power is a daily, caffeine-free supplement that includes shilajit and tongkat ali — two ingredients with the most cited clinical trial evidence in this category — which Mendurance doesn't include.

If you want a daily supplement taken as part of a varied diet and healthy lifestyle, with ingredients that have published RCTs and meta-analyses behind them, Blue Power's formula is built for that purpose. If you want a quick-acting, event-based product with a caffeine kick, Mendurance Max delivers that. There's no single "best" — the right choice depends on what you're actually trying to achieve.

Explore further: Shilajit UK Benefits Guide  ·  Tongkat Ali UK Guide  ·  Best Supplements for Men Over 40  ·  Horny Goat Weed Reviews