7 Coffee is a coffee drink made with Arabica, Robusta, and a blend of seven mushrooms, including lion’s mane. Lion’s mane is being studied for its possible relationship to cognitive function, but human research remains limited. The findings do not make a cup of 7 Coffee a proven way to improve memory or attention.
What is lion’s mane?
Lion’s mane, or Hericium erinaceus, is an edible mushroom. Studies use fruiting bodies, mycelium, powders, and extracts of varying concentrations. These materials differ in composition, so the name “lion’s mane” does not make them interchangeable.
Laboratory interest focuses on hericenones, erinacines, and other compounds. Mechanisms observed in cells or animals can help generate hypotheses, but they do not by themselves prove improved attention in people.
How attention is measured
Instead of asking broadly whether thinking feels easier, researchers use batteries of cognitive tests. One test may assess reaction speed, another working memory, and another the ability to ignore distracting information. Participants may also complete questionnaires about mood and stress.
When a battery includes many measures, an isolated statistically significant difference can occur by chance. Evidence is more convincing when a result is repeated in independent studies, persists in an overall composite measure, and has a meaningful practical size.
The 2023 pilot study
The 2023 study included 41 healthy adults aged 18–45. In a double-blind, parallel-group trial, participants received 1.8 g of the study material or a placebo. The researchers assessed an acute response after 60 minutes and changes after 28 days.
After one serving, the lion’s mane group completed the Stroop test, which involves processing conflicting information, more quickly. After 28 days, there was only a trend toward lower perceived stress; the result fell just short of the conventional threshold for statistical significance. The authors also reported null and some negative results and described the study as a pilot.
The 2025 acute-dose study
In the 2025 double-blind crossover study, 18 healthy adults aged 18–35 received a single 3 g dose of a 10:1 fruiting-body extract or a placebo. After 90 minutes, they completed tests of attention, memory, executive function, processing speed, and mood.
Neither the overall cognitive composite score nor mood improved significantly. A difference appeared only on the pegboard test, which mainly assesses fine motor skills and visuomotor coordination. The authors concluded that no general acute improvement in cognitive performance was shown and that any possible effects may depend on the specific task.
What the two studies can tell us
Both studies were small and involved young, healthy adults, but they differed in design, material, amount, duration, and tests. In 2023, an isolated signal appeared on the Stroop test; in 2025, there was no overall improvement, while a motor test stood out.
This does not establish a consistent effect on attention. Rather, the studies represent an early stage of research: individual signals need to be replicated in larger, independent trials with a primary outcome chosen in advance. The results also cannot be applied to people with dementia, ADHD, or other diagnoses.
How lion’s mane fits into 7 Coffee
Lion’s mane is one of seven mushrooms in 7 Coffee. The blend also includes tiger milk mushroom, chaga, reishi, agaricus, maitake, and cordyceps. Arabica and Robusta form the coffee base; the drink also contains inulin, plant-based creamer, and monk fruit sweetener.
One sachet weighs 30 g and contains the whole blend, not 30 g of lion’s mane. The product information does not say that its lion’s mane form and amount match the materials used in either study. A cup therefore cannot be expected to reproduce their individual findings.
Practical use and limitations
Empty one sachet of 7 Coffee into a cup, add hot water, and stir well. The drink already contains non-dairy creamer and a sweetener. Account for the naturally occurring caffeine in Arabica and Robusta, especially if drinking in the evening, during pregnancy, or if you experience palpitations or are sensitive to caffeine.
If you have allergies, check the full creamer and mushroom blend ingredients on the package. 7 Coffee is not a medicine. If attention has noticeably worsened, interferes with work, or comes with changes in sleep, mood, or memory, consult a healthcare professional to look for the cause instead of increasing coffee or mushroom intake.
