Vitamin B12
Energy, naturally renewed.
A refined liquid Vitamin B12 in the highly bioavailable methylcobalamin form, designed for fast sublingual absorption. Each 1 fl oz (30 ml) bottle delivers everyday support for energy metabolism, nerve function, and red blood cell formation. A clean, essential daily ritual for those who want to feel sharp, steady, and energized.
- Supports natural energy metabolism to help you feel your best
- Helps maintain healthy nerve function and red blood cell formation
- Promotes focus, memory, and a balanced, steady mood
This formula is launching soon. Join the list and we'll email you the moment it goes live.
How to use+
Adults: 500–1000 mcg vitamin B12 daily with food. Elderly and vegetarians: up to 2000 mcg daily. Children (6–12 years): 250 mcg daily. Pregnant and breastfeeding women: 250–500 mcg daily.
Safety & interactions+
Vitamin B12 supplementation is generally safe, but caution is needed in patients with Leber’s disease (optic neuropathy) or with cobalt allergy.
What it helps with
How it works in your protocol
Most supplements are a guess. Agen earns every capsule from your own data — the measure → analyze → act loop.
Measure
The Band tracks your HRV, sleep and resting heart rate; the app reads your stress load across the day.
Analyze
When recovery dips and stress climbs, Agen flags adaptogenic support — and scores the evidence behind it.
Act
It enters your daily protocol at the right dose, dispensed by the Robot each evening.
What the science says
Every claim scored by evidence strength — including the ones that aren’t there yet.
Early signals only — the honest answer is the evidence isn't conclusive yet. We'll update this the moment it is.
Sources: PubMed PMC4953733 ↗PubMed PMC8471716 ↗PubMed PMC10710864 ↗
Clean formula, honest sourcing
- Highly absorbable methylcobalamin form for efficient uptake
- Liquid sublingual delivery, 1 fl oz / 30 ml per bottle
- Especially useful for those following plant-based diets or older adults
- Best taken consistently; consider monitoring levels with long-term use
Beat the mid-day fade
B12 to support natural energy and a healthy nervous system.
How Agen compares
| Agen | Generic supplements | Fitness trackers | |
|---|---|---|---|
| Personalized to your data | — | — | |
| Evidence-scored claims | — | — | |
| Closes the measure→act loop | — | Data only | |
| No subscription lock-in | — | — |
Questions, answered
No — Ashwagandha works on its own. But paired with the Band, Agen times and doses it to your recovery data so every serving is earned. See how it works →
One serving daily. Many members take it in the evening for calm and sleep support. Add to protocol →
Every batch is third-party tested for purity and potency. It's formulated for structure/function support — not to treat or cure any condition. Read our evidence standard →
You can cancel a subscription anytime with no fees or lock-in, and our support team is here to help if anything isn't right. Start your protocol →