Signal
Caffeine + L-Theanine + B12 · 60 capsules
Clean focus. The edge of coffee without the edge.
Overview
100 mg of caffeine paired 1:2 with L-theanine, the calming amino acid found in green tea. The pairing is well studied for attention and task-switching, with fewer jitters than caffeine alone. B12 supports normal energy metabolism.
- Sharper attention and task-switching
- Smoother than caffeine alone
- B12 to reduce tiredness and fatigue
Ingredients & dose
| L-Theanine | 200 mg |
|---|---|
| Caffeine | 100 mg Natural, from green coffee |
| Vitamin B12 | 10 µg Methylcobalamin |
Per serving. No proprietary blends.
How to use
One capsule with water in the morning or before deep work. No more than 3 per day. Avoid within 8 hours of bed.
The science · Grade B
Controlled trials show caffeine with L-theanine improves speed and accuracy on attention-switching tasks and reduces susceptibility to distraction versus placebo, with fewer reported jitters than caffeine alone.
- Owen GN, et al. (2008). The combined effects of L-theanine and caffeine on cognitive performance and mood. Nutr Neurosci.
Claims & safety
- Vitamin B12 contributes to the reduction of tiredness and fatigue.
- Vitamin B12 contributes to normal psychological function.
Do not exceed the recommended daily dose. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Keep out of the reach of young children. Contains caffeine. Not recommended for children or pregnant or breast-feeding women.