Nature’s Most Powerful Adaptogen · 自然界最強のアダプトゲン

The Real
Magic Mushroom.

Wood-log cultivated in the mountains of Gunma, Japan. A single proprietary strain of red reishi, quietly perfected across four generations of the Mayuzumi family, and chosen by the world’s most discerning apothecaries.

UK VAT incl.

Rows of fruiting red reishi mushrooms at a wood-log cultivation farm

Trusted by London’s most established stores

Also found at Life Pharmacy @ Knightsbridge · Life Pharmacy @ Oxford St · Hayatt Pharmacy @ Knightsbridge · Hayatt Pharmacy @ Oxford Street · Omniya @ Knightsbridge · Gould Pharmacy North Audley St · Audley Pharmacy South Audley St · Batoul Clinic Maddox St

Four virtues, one mushroom.

Reishi (Lingzhi, 霊芝) has been described in Traditional Chinese Medicine for over two millennia as the “Mushroom of Immortality,” a Superior Herb that calms spirit, tonifies qi and returns the body to equilibrium.

01 / 免疫 免疫システムをサポートする

Supports the immune system.

Rich in bioactive polysaccharides with immune-modulating properties.

02 / 心神 健康な心血管系を維持する

maintain a healthy cardiovascular system and circulatory health.

eases anxiety, quiets the mind, softens sleep.

03 / 気 体のエネルギーレベルを保つ

Maintains wellbeing, Balances energy.

A qi tonic: harmonizing vitality through the length of the day, without stimulation.

04 / 均衡 自然界で最も強力なアダプトゲン

Nature’s adaptogen.

A simple herb that guides the body, gently and patiently, back toward equilibrium.

The Mayuzumi Family · 黄家

Four generations. One mushroom.

“For centuries it was considered impossible to commercially cultivate red reishi. Fumimaru Mayuzumi found a way: a single wild strain in the mountains of Gunma, and the patience to grow it on natural wood logs, as nature intended.” – Nikkei Co., Gunma, Japan

Since 1976, the Mayuzumi family has quietly refined the wood-log cultivation of their proprietary red reishi strain. No shortcuts, no synthetics: only oak logs, mountain water, and time. Every capsule of Mikei is drawn from this single lineage.

  1. 1972

    Fumimaru Mayuzumi forages a rare strain of red reishi in the Gunma highlands.

  2. 1976

    Founded Nikkei co, pioneering commercial wood-log cultivation.

  3. 2003

    Mikei® Red Reishi Essence introduced to the Japanese apothecary market.

  4. Today

    Stocked by Harrods, Selfridges, and Europe’s finest retailers.

Mikei Red Reishi Essence.

A concentrated essence drawn from four generations of wood-log cultivated red reishi. High potency, ritual daily.

FORMAT30 capsules · one-month supply
RITUAL One capsule daily, ideally with vitamin C
ORIGIN Gunma, Japan · 群馬県
CULTIVATION Proprietary strain, natural wood-log

£47.99

UK VAT INCL. · SHIPS EUROPE-WIDE
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The daily ritual.

Reishi rewards patience. A single capsule, taken with care, becomes part of a quieter, more considered day.

Morning stillness.

Take one capsule with warm water, before your first meal. A moment of quiet before the day begins.

Pair with vitamin C.

Vitamin C enhances the absorption of reishi’s bioactive compounds.

Continue for 90 days.

Reishi acts gently. Practitioners recommend a full season of daily use to observe its adaptogenic effects.

As seen in the press.

Mikei Red Reishi has been featured across the UK’s most-read titles, from Daily Mail Online and Daily Express to Daily Star, alongside endorsements from Britain’s leading nutritionists.

Sliced red reishi mushrooms
Daily Star · Fashion & Beauty

Magic mushrooms: Kim Kardashian’s secret to younger-looking skin.

“The reality TV star has been smearing on anti-ageing Japanese red reishi mushrooms to keep her skin looking taut, smooth and glowing… From London to Vancouver, Tokyo to New York, millions of health-conscious consumers are discovering the benefits of the mushroom in the form of Red Reishi Essence.”

Laura Mitchell · Daily Star
Daily Express · Health

“Could these mushrooms boost sex drive and reduce stress?”

Taking Red Reishi for a consistent period of time will help improve your immune system’s health and capabilities at dealing with the stress placed upon us.

Rhiannon Lambert · Registered Nutritionist Read the full article →
Mail Online · Health

Lisa Snowdon on how therapy, mindfulness and reishi helped her fight depression.

“It’s time to end the taboos around mental health.” The TV star reveals the daily rituals, including Mikei Red Reishi, that anchor her wellbeing.

Daily Mail Online · Health Read the full article →
Patrick Holford · Nutritionist

“Red reishi is one of the three most reputable adaptogens.”

The three most reputable adaptogens are the ginseng family, reishi mushroom (also known as lingzhi in China) and rhodiola. Of all the adaptogenic herbs that help give stress resilience and an energy boost, I like reishi and ginseng the best.

Patrick Holford · Nutritional Therapist & Author

Stockists across London.

Mikei is carried by a curated network of luxury department stores, pharmacies and apothecaries. Search by name or address.

No. Retailer Address Map
1 Life Pharmacy @ Knightsbridge 213 Brompton Road, South Kensington, London SW3 2EJ View on Google Map
2 Life Pharmacy @ Oxford St 489 Oxford Street, London W1C 2AU View on Google Map
3 Hayatt Pharmacy @ Knightsbridge 187 Brompton Road, Knightsbridge, London SW3 1NE View on Google Map
4 Hayatt Pharmacy @ Oxford Street 488 Oxford Street, London W1C 1LE View on Google Map
5 Omniya @ Knightsbridge Unit 2, 3A Montpelier Street, Knightsbridge, London SW7 1EX View on Google Map
6 Gould Pharmacy, North Audley St 37 North Audley Street, Mayfair, London W1K 6ZL View on Google Map
7 Audley Pharmacy, South Audley St 36 South Audley Street, Mayfair, London W1K 2PL View on Google Map
8 Batoul Clinic, Maddox St 58 Maddox Street, Mayfair, London W1S 1AY View on Google Map
9 Harrods, Knightsbridge 87–135 Brompton Road, Knightsbridge, London SW1X 7XL View on Google Map
10 John Bell & Croyden, Wigmore St 50–54 Wigmore Street, Marylebone, London W1U 2AU View on Google Map
11 Selfridges, Oxford Street 400 Oxford Street, London W1A 1AB View on Google Map