SupplementEmergingAdaptogen

Rhodiola Rosea

Half-life

~4–6 hours

What is Rhodiola Rosea?

Siberian adaptogen. Reduces perceived exertion and cortisol. Strong evidence for mental fatigue.

How Rhodiola Rosea works

Rosavin and salidroside modulate serotonin/norepinephrine levels, reduce cortisol via HPA axis normalization, and enhance mitochondrial biogenesis via AMPK activation for improved endurance performance.

Benefits & uses

Reduces mental/physical fatigue
Improves focus under stress
Supports mood
Stress resilience

Common uses: Stress resilience, mental performance, endurance, cortisol reduction, mood.

CognitiveRecovery

Rhodiola Rosea dosage

Typical dose: 300–600 mg standardized to 3% rosavins + 1% salidroside. Morning only — avoid afternoon (stimulating).

Rhodiola Rosea half-life

~4–6 hours (rosavins in plasma)

Rhodiola Rosea side effects

May cause insomnia if taken too late. Generally very safe. May interact with P-glycoprotein.

Insomnia if taken after noon
Mild stimulatory effects — not for those with anxiety disorders (may exacerbate)
Drug interactions via P-glycoprotein (immunosuppressants)
Generally well tolerated
Can be over-stimulating late in the day

Warnings & monitoring

Stimulating — avoid at night

Commonly stacked with

Ashwagandha (KSM-66)Eleuthero (Siberian Ginseng)

Track Rhodiola Rosea in Protokol.

Log doses, model half-lives, check interactions, and line it all up against your bloodwork. Free on iPhone and Android.