Best cordyceps supplement UK: an honest label comparison
What is the best cordyceps supplement in the UK?
Two different species are sold as 'cordyceps' in the UK, and the label rarely spells out which you're getting. Cordyceps sinensis is the wild Himalayan original; because wild harvesting is unsustainable, supplements use cultivated sinensis grown by liquid fermentation — which is mycelium, not fruiting body. Cordyceps militaris is a different species that can be cultivated as fruiting body, so 'fruiting body' on a cordyceps label almost always means militaris. Neither species has an authorised UK health claim. Grass & Co. ENERGY uses 800mg of 8:1 cultivated Cordyceps sinensis per two capsules inside a blend where Iron, Folic Acid and Vitamin B12 carry the approved energy claims. If you want a single-ingredient fruiting-body militaris with a published polysaccharide percentage, Time Health is the clearest UK option; Real Mushrooms is excellent but mostly import.
Cordyceps supplements sold in the UK, label by label (checked November 2026)
| Grass & Co. ENERGY | Time Health Cordyceps | Real Mushrooms Cordyceps | |
|---|---|---|---|
| Species and material | Cordyceps sinensis, cultivated by liquid fermentation (mycelium-based, vegan) | Cordyceps militaris fruiting body, dual extracted | Cordyceps militaris fruiting body |
| Dose per serving | 800mg of 8:1 extract per 2 capsules (6,400mg dry herb equivalent) | Check label for mg per capsule | 500mg per capsule, 2 daily |
| Standardisation | 8:1 extract ratio | 50% polysaccharides | 8% beta-glucans, third-party verified |
| Other actives | Holy Basil 300mg, Iron 16mg (114% RI), Folic Acid 500µg (250% RI), Vitamin B12 5µg (200% RI) | None — single ingredient | None — single ingredient |
| Approved claims | Iron, Folic Acid and B12 contribute to normal energy-yielding metabolism and the reduction of tiredness and fatigue | None authorised for cordyceps itself | None authorised for cordyceps itself |
| Diet | Vegan, UK made | Vegan, pullulan capsules | Vegan, non-GMO |
| Pack and price | 60 capsules · 30 servings · £25 | 120 capsules · £23.49 | 300 capsules; UK availability limited |
| Where to buy | Amazon UK and Holland & Barrett | Brand website | Mostly import sellers |
The trade-offs
Grass & Co. ENERGY
- The only option here where approved energy claims come from the formula itself — Iron, Folic Acid and B12
- Caffeine free
- Easy to buy: Amazon UK and Holland & Barrett
- Batch certificates published on our science page
- Mycelium-based sinensis, not fruiting-body militaris
- No published polysaccharide or beta-glucan percentage
- A blend, not a single-ingredient cordyceps
Time Health
- Fruiting-body militaris, dual extracted
- Publishes a 50% polysaccharide figure
- Good value per capsule
- Vegan, no bulking agents
- No authorised claims — single-ingredient mushroom only
- Brand website only
Real Mushrooms
- Fruiting-body militaris with third-party verified beta-glucans
- No grain, fillers or excipients
- Strong international reputation
- Canadian brand — UK availability and pricing are inconsistent
- No authorised claims
Decide what you actually want from cordyceps first. If it's a single-ingredient fruiting-body extract with a published polysaccharide percentage, Time Health is the clearest UK buy and Real Mushrooms the import alternative. If what you actually want is to feel less tired, be honest about that: no cordyceps product can claim it, which is why our ENERGY blends cordyceps with Iron, Folic Acid and B12 — the nutrients that legally can.
Our cordyceps is cultivated Cordyceps sinensis grown by liquid fermentation — mycelium, not fruiting body — and we don't publish a polysaccharide percentage for it. If you're a mushroom purist who wants fruiting-body militaris with verified beta-glucans, Time Health or Real Mushrooms are more that product than we are. Ours is a blend, built so the approved energy claims come from Iron, Folic Acid and B12 rather than from the mushroom.
Mentioned in this piece
Questions people ask
- What is the difference between Cordyceps sinensis and Cordyceps militaris?
- Sinensis is the wild Himalayan species that built cordyceps' reputation; supplements use cultivated sinensis grown by liquid fermentation, which is mycelium. Militaris is a different species that can be cultivated as fruiting body. Both are sold as 'cordyceps', so check which species and which material the label means.
- Does cordyceps give you energy?
- Cordyceps has a long traditional history and early research, but no authorised UK health claim — no brand can legally promise an energy benefit from the mushroom itself. Products like our ENERGY pair it with Iron, Folic Acid and B12, which do have authorised claims for energy-yielding metabolism and tiredness.
- When should I take cordyceps?
- Most people take it in the morning or before exercise. Follow the serving instructions on your pack; ours is two capsules with breakfast.
- Is cordyceps vegan?
- Wild sinensis grows on caterpillars, but no reputable UK supplement uses wild material. Cultivated sinensis (including ours) is grown by liquid fermentation and militaris is grown on plant substrate, so the products compared here are all vegan.
Sources & label checks
This is a brand-authored comparison, not an independent customer review. Prices and formulations can change; check the current pack before buying. Customer reviews do not establish health benefits.
Keep reading
- The ingredient questionLion's Mane vs Reishi vs Cordyceps vs Maitake
- ComparisonMushrooms vs creatine: different tools, honestly compared
- The field guideBest mushroom supplements UK: match the mushroom to the moment
- From the JournalCordyceps: The Mushroom Behind ENERGY
Grass & Co. products are food supplements and are not intended to diagnose, treat, cure or prevent any disease. Do not exceed the stated dose. Most products are for adults; CBD is for adults only.