Quick answer
Choose Brain Factors if your energy slump is tied to brain fog and focus; choose Adrenal Cortex if you feel drained after stress or need help with metabolic balance.
Different roots of fatigue
Fatigue can come from mental overload or from adrenal strain. Brain Factors targets the first by supporting BDNF and NAD+ levels, which are linked to mental clarity and focus. Adrenal Cortex supports the adrenal glands, which produce hormones that regulate glucose metabolism and help the body recover from stress.
How they work differently
Brain Factors combines coffee fruit extract with nicotinamide riboside to support brain-derived neurotrophic factor (BDNF) and NAD+. This is ideal for people who feel mentally depleted or distracted. Adrenal Cortex provides nutrients that support the adrenal cortex's hormone production, which is key for energy balance and immune function after physical or emotional stress.
Trade-offs at a glance
- Brain Factors for mental energy: Best when you need to sharpen focus, attention, and mental function. It directly targets brain fog and cognitive decline.
- Adrenal Cortex for physical recovery: Best when you feel run down after stress, have irregular energy levels, or need support for metabolic and immune balance.
- The trade-off: Brain Factors does not address adrenal or metabolic fatigue. Adrenal Cortex does not improve cognitive focus or brain fog. Choose based on where your energy problem starts. If you experience both mental fog and physical exhaustion, you might consider using them together under professional guidance.
Product facts
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Brain Factors: Brain Factors combines a unique coffee fruit extract with Nicotinamide Riboside to support optimal levels of BDNF and NAD+. This makes it a targeted choice for improving focus and clearing brain fog rather than general physical tiredness.
Brain Factors
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Adrenal Cortex: Adrenal Cortex supports the adrenal cortex, which produces hormones necessary for glucose metabolism, immune function, and normal blood pressure. If your low energy is linked to stress recovery or metabolic imbalance, this supplement addresses the root cause rather than just the symptom.
Adrenal Cortex
Which one fits you?
Best for
- People whose main complaint is brain fog, lack of focus, or mental distraction during busy schedules
- Those looking to support BDNF and NAD+ levels for cognitive energy
Not for
- People whose fatigue is primarily physical or linked to stress recovery without cognitive symptoms
- Anyone seeking a general all-purpose energy supplement without a clear target




