[rosea: nice odour] Dried root used.

An adaptogen [Adaptogens are plants and mushrooms that help your body respond to stress, anxiety, fatigue and overall well-being]

Rose root grows in the northern circumpolar regions of Russia, Scandinavia, and Canada as well as in mountainous regions of Europe [Winston] Rich history in both Siberian and Chinese cultures
Cultivated on a large scale in Scandinavia and Russia.

Against all kinds of acute and chronic stress, against anxiety and depression, to increase physical and mental strength [chronic fatigue syndrome!] as well as sexual function
Also used for senile dementia
Used for altitude sickness [grows in high areas!]
It protects the heart[also before certain heart operations [especally when there is also pulmonary hypertension!!], works against arrhythmias and lowers CRP
It can help regulate menstruation in amenorrhea and can improve thyroid function without overstimulation

Maybe help to stop cigarette/nicotine addiction

Rhodiola can work fast,2x per day 250mg could already show clear improvements in stress and tiredness
A single dose may already help for examinations!

Dosis: Rhodiola is often dosed at 200–800 mg daily(standardized to 3% rosavin and 1% salidroside), best in divided doses.
Safe even in some higher doses. Not enough examined for pregnancy and lactation [but probably safe]
Some people are sensitive to Rhodiola and feel a bit ‘jittery”, so they should try a low dose [anyhow good to start with a low dose]

Standardized extract/Capsules: 250 mg standardized 3% to 6% rosavins and 1% salidroside, two times a day.
Suggested use
Take 1 capsule twice daily [or more], preferably before meals. For best results, take in the morning and at mid-day

Animal studies show that Rhodiola decreases the toxicity of chemotherapy agents (cyclophosphamide, doxorubicin) while enhancing their anticancer effects (Brown et al., 2002).
Kuhn, Merrily A.. Winston & Kuhn’s Herbal Therapy and Supplements (p. 377). Wolters Kluwer Health. Kindle Edition.