If you’ve scrolled past the loud MarsGHC Surge Max ads promising Olympian testosterone levels, you’ve already felt the supplement FOMO. But flashy funnels rarely reveal what’s actually inside the capsule—or whether the lab test even matches the label. Two ingredients with solid human data are Ashwagandha (KSM-66) and Shilajit (resin rich in fulvic acid):
• Ashwagandha (Withania somnifera) – shown to boost total T and lower cortisol in several peer-reviewed RCTs.
• Shilajit – double-blind trials report 20 % testosterone bumps after 90 days at 250 mg/day.
Our shortlist pulls only Amazon-UK listings with 4 ★+ averages and UK/EU lab certificates—so you can swerve mystery blends and buy with a Prime click.
| Slot | Product | Key Specs / Dose | Approx £ (15 Jul 2025) | Link |
|---|---|---|---|---|
| Budget | Nutravita Ashwagandha KSM-66 – 180 Caps | 1,500 mg root equiv. + Black Pepper; 6-month supply | ≈ £14 | Buy on Amazon UK |
| All-Rounder | WeightWorld Ashwagandha & Shilajit – 1100 mg, 60 Caps | 900 mg Shilajit (60 % fulvic) + 200 mg Ashwagandha | ≈ £18 | Buy on Amazon UK |
| Premium | Mountain Blood Himalayan Shilajit Resin 30 g + True Veda Organic Ashwagandha KSM-66 |
Pure resin (≈600 servings) + Soil-Assoc. organic caps | £35 + £20 | Buy Resin | Buy Ashwagandha |
Why these made the cut
| Product | 2-line verdict |
|---|---|
| Nutravita KSM-66 | UK-made, GMP batch-tested; black-pepper enhances absorption, and one capsule/day keeps cost to ≈ £2.30/month. |
| WeightWorld Combo | All-in-one stack saves cupboard space; 60 % fulvic acid meets clinical spec; veggie caps, no fillers. |
| Mountain Blood + True Veda | Full-spectrum resin you dissolve in warm water (zero fillers) + award-winning organic KSM-66 for gold-standard synergy. |
How we chose
- Human evidence ≥ 1 RCT on each ingredient.
- ≥ 4.0 ★ average from ≥ 500 verified UK buyers.
- Transparent origin (UK/EU GMP or third-party lab cert).
- No proprietary blends—label must show mg per ingredient.
Common questions
Is Surge Max bad?
Unknown. MarsGHC doesn’t publish full third-party certificates or dosage per cap—so it flunks our transparency test.
Can I double-stack Ashwagandha + Shilajit?
Yes; no known interactions. Keep total fulvic acid ≤ 500 mg/day to avoid GI upset.
How long to feel effects?
Studies show testosterone bumps after 8-12 weeks. Consistency > megadoses.
Final word
Skip mystery “Test boosters.” Stick to clinically-dosed Ashwagandha + Shilajit from brands that publish lab slips. Your wallet (and endocrine system) will thank you.
As an Amazon Associate I earn from qualifying purchases. Prices and availability correct at 15 Jul 2025. Always consult a healthcare professional before adding new supplements.