Can I take ashwagandha and rhodiola together?

Some formulas combine them, playing the calming and stamina traditions together. There is no established reason you cannot, but check with your GP if you are on medication, and follow the label doses.

Which is better for stress?

Ashwagandha has the calming tradition and the larger body of modern study. Neither has an authorised UK claim for stress; the approved claims in these products come from magnesium and B6.

When should I take each one?

By tradition, ashwagandha in the evening and rhodiola in the morning or before demanding work. Follow your product's label.

Head to head · Last updated 7 October 2026

Ashwagandha vs rhodiola: which adaptogen for which job

Should I take ashwagandha or rhodiola?

The short answer

Ashwagandha and rhodiola are both called adaptogens, but their traditions point in opposite directions: ashwagandha is the calming root of Ayurveda, taken for winding down, while rhodiola comes from Scandinavian and Siberian tradition, taken for stamina and endurance. Neither has an authorised UK health claim, so any effect a product promises comes from the vitamins and minerals alongside them. A simple rule of thumb: ashwagandha for the evening side of stress, rhodiola for the performance side — and check what else is in the formula, because that is where the approved claims live.

Ashwagandha vs rhodiola at a glance

Ashwagandha vs rhodiola at a glance
	Ashwagandha	Rhodiola
Tradition	Ayurveda, India, thousands of years	Scandinavian and Siberian folk medicine
Traditional role	Calming, evening, rest	Stamina, endurance, cold-climate work
Typical form	Root powder or standardised extract (KSM-66, Sensoril)	Root extract standardised for rosavins and salidroside
Authorised UK claim	None	None
Commonly paired with	Magnesium, B6, L-Theanine	B vitamins, caffeine, other nootropics

The trade-offs

Ashwagandha

The longer, better-documented tradition
The most-studied adaptogen in modern trials (as KSM-66)
Sits naturally in an evening routine

No authorised UK claim
Study doses (300 to 600mg of extract) are higher than many products provide

Rhodiola

A distinct stamina tradition from cold climates
Often the adaptogen in performance and productivity formulas

No authorised UK claim
Less studied than ashwagandha
Can feel stimulating, so not an evening choice for most people

The verdict

Match the adaptogen to the moment: ashwagandha for the calm side of the day, rhodiola for the push. And read past the headline ingredient — the magnesium and B vitamins in the formula are what carry the approved claims.

Where Grass & Co. loses

We do not use rhodiola anywhere in the range, so if rhodiola is specifically what you want, another brand wins this one. Our ashwagandha sits in RELAX, at a gentle 150mg of root powder in the capsules and 250mg of extract in the can, inside a wider formula rather than as a hero dose.

Mentioned in this piece

Questions people ask

Can I take ashwagandha and rhodiola together?: Some formulas combine them, playing the calming and stamina traditions together. There is no established reason you cannot, but check with your GP if you are on medication, and follow the label doses.
Which is better for stress?: Ashwagandha has the calming tradition and the larger body of modern study. Neither has an authorised UK claim for stress; the approved claims in these products come from magnesium and B6.
When should I take each one?: By tradition, ashwagandha in the evening and rhodiola in the morning or before demanding work. Follow your product's label.

More comparisons

Grass & Co. products are food supplements and are not intended to diagnose, treat, cure or prevent any disease. Do not exceed the stated dose. Most products are for adults; CBD is for adults only.