A functional mushroom drink is a hot (or cold) beverage made with extracts from culinary and medicinal mushrooms — like Lion's Mane, Cordyceps, Chaga and Reishi — combined with other adaptogens and nutrients. Unlike regular supplements, they're designed to be a daily ritual that's actually enjoyable to drink.

NO CRASH is a functional mushroom hot chocolate. One 8g scoop gives you Lion's Mane, Cordyceps, Chaga, Reishi, KSM-66® Ashwagandha, Rhodiola and Maca — plus a complete vitamin foundation of B12, B6, D3 and K2. Rich, smooth chocolate flavour. No earthy mushroom taste.

We're not allowed to tell you, and we'd rather say that plainly than dress it up. UK rules permit no health claim for Lion's Mane, Cordyceps, Chaga or Reishi, so any brand telling you what those mushrooms do is going further than the evidence lets them.

What we can tell you is what's in the cup. A thousand milligrams of each mushroom as fruiting body extract, where much of the market sits at 150 to 300mg. KSM-66 ashwagandha at 300mg, standardised to 5% withanolides. Every batch third-party tested for heavy metals, mould and mycotoxins.

The vitamins are the part we can make claims for. Vitamin B6 and vitamin B12 contribute to the reduction of tiredness and fatigue and to normal psychological function.

Beyond that, make your own mind up. That's what the 90-day guarantee is for.

Completely different species, and completely legal. Lion's Mane, Cordyceps, Chaga and Reishi are culinary and medicinal mushrooms — they have no psychoactive properties and no connection to psilocybin mushrooms beyond being fungi.

NO CRASH is third-party tested for purity, heavy metals, mould and mycotoxins. All ingredients are at clinically studied doses and fully compliant with UK food supplement regulations.

Most people notice something in the first one to two weeks: typically clearer mornings, steadier energy through the afternoon, and less of that 3pm slump. The cognitive effects of Lion's Mane and Cordyceps tend to build over four to eight weeks of daily use.

If you were low in B12, B6 or D3 (common in the UK: around 1 in 5 adults are deficient in at least one), the vitamin foundation can work faster than the mushrooms. Give it a full month before drawing conclusions. 90-day money-back guarantee. If it isn't for you, email us and we refund you in full.

Yes — and some of our customers do. NO CRASH is an enhancement to your existing routine, not a replacement for it. The 50mg caffeine version gives you about half a cup of coffee's worth, from coffee extract. It works well as a morning companion or an afternoon alternative when you want focus without a late caffeine hit.

The caffeine free version is ideal if you're sensitive to caffeine or want something you can drink any time of day.

Every 30 days. One bag is thirty servings, so it lands about when you run out. You can skip a delivery, change the date or cancel from your account at any time. No notice period and no phone call.