
Prime Forever Skin Preservation Collection
The No7 Prime Forever Skin Preservation Collection is built around a proprietary Antioxidant Peptide blend — described by No7 as their strongest ever broad-spe…

£40.00
DIRTEA Chaga is a single-ingredient mushroom powder made from 100% Chaga (Inonotus obliquus), a fungus that grows on birch trees and has been used in traditional Northern European and Siberian wellness practices for cen…
DirteaChaga
The No7 Prime Forever Skin Preservation Collection is built around a proprietary Antioxidant Peptide blend — described by No7 as their strongest ever broad-spe…

Spermidine is a naturally occurring polyamine compound found in wheat germ and a range of other food sources.
Interested in more
personalised recommendations?
Set up your WA\ Profile to connect your wearables, biomarkers and test results. Create a bespoke plan based on your unique biology. Expert-led, evidence-based.
Set up Profile nowDIRTEA Chaga is a single-ingredient mushroom powder made from 100% Chaga (Inonotus obliquus), a fungus that grows on birch trees and has been used in traditional Northern European and Siberian wellness practices for centuries. In modern research, Chaga is studied primarily for its dense concentration of antioxidant compounds — including melanin pigments and polyphenols — which may support the body's defence against oxidative stress. It sits within the adaptogen category, meaning it is broadly used to help the body maintain balance under physical and environmental pressure.
Chaga suits people who want to build a foundation of daily antioxidant support, particularly those whose lifestyles involve high stress loads, significant environmental exposure, or who are simply looking to complement an evidence-informed supplement routine. It is not a stimulant, which makes it a practical addition for those already limiting caffeine.
DIRTEA produces their mushroom range as a pure powder, without fillers or blending agents, making it easy to incorporate into an existing morning ritual — stirred into coffee or warm water. The single-ingredient format means you know precisely what you are taking, which matters when you are tracking the effect of individual supplements over time. Chaga's reputation is built on long-term, consistent use rather than acute effects, so it is best approached as a daily staple rather than an occasional addition.
100% Chaga Mushroom
Mix one teaspoon of the powder into water, coffee, or another warm drink. It blends most smoothly into hot liquids. Taking it consistently at the same time each day — most commonly in the morning — tends to make the habit easier to sustain.
Chaga is studied primarily for its antioxidant activity, driven by compounds such as melanin pigments and polyphenols. These may help neutralise free radicals and support the immune system over time. Effects are generally associated with consistent, long-term use rather than any immediate response.
Adaptogens like Chaga are not fast-acting in the way a stimulant might be. Most people who report benefits describe gradual shifts in how they handle stress or a general sense of steadiness, typically after several weeks of daily use. Keeping your routine consistent is more important than timing.
Chaga is generally well tolerated, but it may interact with anticoagulant medications due to compounds that can influence platelet activity. If you take blood thinners or have a clotting-related condition, speak to your GP before adding it to your routine.
Chaga mushroom is naturally caffeine-free. If you mix this powder into coffee, any stimulant effect comes from the coffee itself, not the Chaga.
Because Chaga is studied for immune-modulating activity, those with autoimmune conditions or who take immunosuppressant medications should consult a doctor before use. The immune-supporting properties that make it appealing for general wellness may warrant caution in certain clinical contexts.
We offer physician-led talks and events to help you learn more about how to deal with stress through movement, mindfulness, and refocusing.
Learn about our next event
Overall sentiment
4 days ago
Gentle on a sensitive stomach, and I feel like myself again. I had tried two other glandulars before this and neither sat right.
1 week ago
I was sceptical about glandulars, but my mid-afternoon crash has genuinely eased. One capsule with breakfast and I forget about it.
2 weeks ago
Not a stimulant, which is exactly what I wanted. It took about ten days, then I realised I wasn’t dreading the afternoon any more.
3 weeks ago
Bought after a blood panel flagged a flat cortisol curve. Easy to take, no jitters, and the sourcing is refreshingly transparent.
1 month ago
Training hard through a stressful stretch and this has helped me bounce back between sessions. Already on my second bottle.
1 month ago
No frills, one ingredient, a sensible dose. I appreciate that it is designed to be used for a season rather than forever.
A blood test is the only way to know what your body actually needs. We’ll tell you which of these supplements is right for you.
Find your panel
A curated selection of products, tools and rituals, carefully chosen by our expert doctors, to benefit you on your wellness journey.
Loading the catalogue…