WE GROW ALL OUR MUSHROOMS
Keep-Your-Cool Adaptogens Blend
Vegan
EU Certified Organic
100% Traceable
Lab tested
No third party mushrooms
from €1,118/ day
For the day that stays manageable. And the night that actually restores.
Five certified-organic ingredients. Reishi, Mesima and Lion's Mane grown in Portugal — paired with Rhodiola, EMA-approved for stress-related fatigue, aand Maca, the Andean root used for centuries for stamina and vitality.
For the days that don't let up — and the body that keeps up anyway
What's Keep Your Cool
Keep Your Cool pairs two of the world's most studied traditional adaptogens — Rhodiola (125mg, Rhodiola rosea — rosavin and salidroside; recognised by the European Medicines Agency as a traditional herbal medicinal product for temporary relief of stress symptoms including fatigue and weakness) and Maca (125mg, Lepidium meyenii — macamides and macaenes; the Andean root used for over 2,000 years at altitudes above 4,000m for stamina, vitality and stress resilience) — with three certified-organic functional mushrooms: Reishi (250mg) — valued in East-Asian herbal tradition for thousands of years for calm and balance; Lion's Mane (250mg) — prized in herbal practice for clarity and focus; and Mesima (250mg) — one of the most revered mushrooms in Korean and Japanese herbal medicine for over 2,000 years.
All five certified organic, vegan HPMC capsules (pine fibre), grown or sourced in Portugal under PT-BIO-10 — 2,000mg active content per 2-capsule serving, best taken in the morning.
This product is not intended to diagnose, treat, cure, or prevent any disease.
How it works
The Regulator: Rhodiola 125mg
EMA-approved for stress-related fatigue. Rosavin + salidroside modulate HPA axis, cortisol, serotonin and dopamine. Fast-acting adaptogen for acute stress and mental fatigue.
The foundation: Maca 125mg
The Peruvian Andes root used at altitudes above 4,000m for centuries. Traditionally valued for energy, stamina and vitality. Naturally rich in macamides, macaenes, amino acids, calcium, magnesium and zinc.
The Balance: Reishi 250mg
Triterpenoids regulate the HPA axis and support deep sleep quality. Immune modulation and nervous system recovery — the overnight restoration layer.
The Clarity: Lion's Mane 250mg
NGF for cognitive resilience under stress. The gut-brain axis layer — chronic stress depletes gut health, gut health depletes cognition. Lion's Mane supports both.
The Shield: Mesima 250mg
Sang-hwang — 2,000 years of East-Asian herbal use for gut-immune resilience and liver protection. The deep foundation that chronic stress depletes first and most supplements never address.
Who is this for
- You're looking for a daily adaptogen ritual grounded in centuries of traditional use Rhodiola has been used in Siberian and Scandinavian herbal traditions for centuries — now the subject of an EMA-recognised monograph for temporary relief of stress symptoms. Maca has been cultivated and consumed in the Peruvian Andes for over 2,000 years for its energising and restorative properties. Together: East-European and South-American adaptogenic heritage in one daily capsule.
- You want sustained vitality — not a stimulant spike Maca is a nutritional adaptogen — traditionally used for stamina and vitality at altitude where few other plants survive, rich in naturally occurring amino acids, minerals and unique plant compounds including macamides and macaenes. Rhodiola is recognised for temporary relief of fatigue and weakness. Neither contains caffeine. The energy is earned, not borrowed.
- You want three of East Asia's most studied functional mushrooms as your daily foundation Reishi, Lion's Mane, and Mesima — each with thousands of years of herbal heritage — grown on Gribb's certified-organic farm in Portugal. 2,000mg total per 2-capsule serving. The mushroom layer that the adaptogens work alongside.
Key benefits
· Caffeine-free formula — natural energy support without the spike or the crash
· Six active ingredients — three functional mushrooms, three adaptogenic botanicals
· EU Certified Organic whole mushroom — no mycelium filler
· Grown by us in Portimão, Portugal — fully traceable from spore to capsule
· Vegan HPMC capsules — no synthetic fillers or bulking agents
· €1,11/day — one month's supply for the cost of a coffee
Specifications
Mushrooms: Lion's Mane — Hericium erinaceus (250mg), Reishi — Ganoderma lucidum (250mg), Mesima — Phellinus linteus (250mg) — certified organic whole fruiting body, grown in Portugal
Botanicals: Rhodiola — Rhodiola rosea (125mg) · Maca — Lepidium meyenii (125mg) — certified organic
Beta-glucan content: Standardised 32–40% (β1,3 / β1,6)CapsuleHPMC (hydroxypropylmethylcellulose) — vegan · pine fibre
Servings: 30 servings · 60 capsules · 1-month supply
Certification: Certified Organic PT-BIO-10 · Vegan · Made in Portugal
Best time to take: Morning — with a glass of water
Allergens: No known allergens. Produced in a facility handling nuts, peanuts, sesame seeds, gluten, and soy. May contain traces of nuts and sesame.
Ingredients
Reishi — Ganoderma lucidum* (25%), Mesima — Phellinus linteus* (25%), Lion's Mane — Hericium erinaceus* (25%), Rhodiola — Rhodiola rosea* (12.5%), Maca — Lepidium meyenii* (12.5%). Capsule: HPMC (hydroxypropylmethylcellulose, pine fibre). *Certified organic.
Mushrooms grown in Portugal by Gribb. Botanicals certified organic and ethically sourced.
Contains 60 capsules — 30 servings at 2 capsules per day. Packaging may vary.
Allergens: No known allergens. Produced in a facility that handles nuts, peanuts, sesame seeds, gluten, and soy. May contain traces of nuts and sesame.
How to use
- Take 2 capsules daily with a glass of water
- Best taken in the morning
- If Rhodiola affects sleep quality, take both capsules before noon
Adaptogens build cumulatively — most people notice meaningful changes in stress response and sleep quality after 3–4 weeks of consistent daily use. One pack = 60 capsules = 30 days.
What to expect
Ritual beats intensity. Same time, every day. That's the whole game.
WEEK 1–2
Your body is absorbing and adjusting to the blend. The functional mushrooms
and adaptogenic botanicals need time to build in your system — most people
notice little change yet and that is completely normal. Stay consistent.
WEEK 3
This is usually when subtle shifts begin. Days feel slightly more even. The
afternoon dip that used to derail you starts to feel less sharp. Not a spike —
a steadier floor.
MONTH 1+
The cumulative effect. Most people at this point notice the difference on the
days they forget to take it. The vitality feels like yours — not something
borrowed from caffeine.
For informational purposes only. Not intended to diagnose, treat, cure or
prevent any disease.
Choose options
Ritual beats intensity. Same time, every day. That's the whole game.
What to expect - day by day:
Week 1
Foundation. Your body is absorbing and adjusting. No dramatic changes yet. This is normal and expected.
Week 3
This is usually when subtle shifts begin. Days feel slightly more even. The
afternoon dip that used to derail you starts to feel less sharp. Not a spike —
a steadier floor.
MOnth 1+
The cumulative effect. Most people at this point notice the difference on the
days they forget to take it. The vitality feels like yours — not something
borrowed from caffeine.
Frequently Asked Questions
Gribb Keep Your Cool is a certified-organic functional mushroom and adaptogen capsule supplement combining five active ingredients per 2-capsule serving: Lion's Mane — Hericium erinaceus (250mg), Reishi — Ganoderma lucidum (250mg), Mesima — Phellinus linteus (250mg), Rhodiola rosea (125mg), and Maca — Lepidium meyenii (125mg) — totalling 2,000mg per serving. All mushrooms grown in-house on Gribb's certified-organic farm in Portugal under PT-BIO-10. Botanicals certified organic. Beta-glucans standardised 32–40% (β1,3/β1,6). HPMC vegan capsules (pine fibre). 60 capsules, 30 servings. Best taken morning. Rhodiola rosea is recognised by the European Medicines Agency (EMA) as a traditional herbal medicinal product for temporary relief of stress symptoms including fatigue and weakness. Maca (Lepidium meyenii) is an Andean adaptogenic root used for over 2,000 years, traditionally valued for energy, stamina and vitality. Vegan. No known allergens. Facility handles nuts, peanuts, sesame seeds, gluten, soy.
Rhodiola rosea — golden root, Arctic root, roseroot — is one of very few herbal supplements to receive an official monograph from the European Medicines Agency (EMA), which characterises it as a traditional herbal medicinal product for temporary relief of stress-related symptoms including fatigue and weakness.
Used for centuries in Siberian and Scandinavian folk medicine, its bioactive compounds rosavin and salidroside modulate the HPA axis (reducing cortisol), inhibit monoamine oxidase enzymes (preserving serotonin and dopamine), and have been shown in randomised controlled trials to improve stress experience and fatigue scores. In Keep Your Cool, it's the fastest-acting adaptogen in the formula — studies show meaningful effects on stress and fatigue within days to two weeks of consistent use.
Maca (Lepidium meyenii) is a cruciferous root vegetable native to the Peruvian Andes, cultivated and used at altitudes above 4,000 metres for over 2,000 years. Traditionally valued by Andean peoples for energy, stamina and vitality — its unique plant compounds including macamides, macaenes and glucosinolates make it one of the most nutritionally distinctive adaptogens in the world.
Where Rhodiola brings the European herbal tradition, Maca brings the Andean one — two complementary adaptogenic traditions from opposite ends of the world, working alongside three mushrooms with deep roots in East-Asian herbal practice.
The label recommends morning — and for a specific reason: Rhodiola has a mild activating quality through its effects on serotonin and dopamine, and some people find evening use interferes with sleep onset. If you want to emphasise the sleep benefits of Reishi and Ashwagandha, take both capsules in the morning — the adaptogenic effects on cortisol and HPA regulation accumulate through the day and support better sleep quality at night rather than acting as a direct sedative at bedtime. If you try evening use and notice any effect on sleep, switch to morning.
Mesima — Phellinus linteus, known as sang-hwang — addresses the dimension of chronic stress that most stress formulas ignore entirely: gut-immune resilience. Sustained cortisol elevation suppresses immune function and disrupts gut microbiome balance — a slow erosion of the foundation that underpins everything else. Mesima's beta-glucans and hispidin compounds have been used in Korean and Japanese herbal medicine for over 2,000 years for gut-immune support and liver protection. It's the layer that ensures the adaptive capacity built by Rhodiola and Ashwagandha has solid ground to work from.
Rhodiola can produce noticeable effects on stress and fatigue within days to two weeks — it's the most acutely responsive ingredient in this formula. Ashwagandha and the mushrooms build their effects over 3–6 weeks of consistent daily use. Most people report meaningful improvements in stress response, sleep quality, and general resilience after one full 30-day pack. Consistency matters most — take two capsules every morning, every day.
The capsules are tasteless — the HPMC shell has no flavour. If you open one,
the contents have a mild earthy botanical smell which is normal for mushroom
and adaptogen blends.
The capsules are a standard size and easy to take with a full glass of water.
If you have difficulty swallowing capsules, open them and stir the contents
into a smoothie or yoghurt.
Yes to both. All three mushrooms are grown on Gribb's own certified-organic farm in Portugal under PT-BIO-10. Both botanicals are certified organic and ethically sourced. The capsule is HPMC (hydroxypropylmethylcellulose) made from pine fibre — vegan and gelatin-free.
Not sure where to start?
Different mushrooms work on different systems. Pick the pair that matches what you actually want to change.
Not sure? Take the 60-second quiz — we'll tell you your ideal support