St. John's Wort or Valerian? The Honest Comparison

When your thoughts start racing in the evening, or your mood stays low for weeks on end, two old acquaintances quickly come to mind: St. John's wort and valerian. Both count among Europe's best-known medicinal plants, both have accompanied people for centuries – and yet they could hardly be more different. One is traditionally seen as a plant for emotional balance, the other as a calm companion for winding down after work. But which of the two actually suits what you're looking for?

In short: this isn't about better or worse, but about two completely different concerns. St. John's wort is traditionally associated with mood and emotional balance, while valerian is the classic plant for evening calm and falling asleep. On top of that comes a crucial safety difference: St. John's wort can affect how many medications work, whereas valerian is considered comparatively uncomplicated.

No health claims are currently authorised in the EU for St. John's wort or valerian – so here we classify them neutrally, in the context of their traditional use.

Origin and Tradition: Two Unlikely Classics

St. John's wort (Hypericum perforatum) owes its name to St. John's Day around 24 June, when its bright yellow flowers are in full bloom. Hold a leaf up to the light and it looks as if it's riddled with tiny holes – hence the botanical epithet "perforatum". Rub the flowers between your fingers and a reddish liquid is released, which was traditionally used to make so-called St. John's oil or red oil. In European herbal tradition, the flowering herb has been linked to mood and emotional balance for centuries. Gathered around the summer solstice, folk belief long regarded it as a "sun plant" that, in a sense, captures the light of the long summer days.

Valerian (Valeriana officinalis) takes a completely different starting point: it's not the flower but the root that takes centre stage, recognisable by its unmistakable, earthy, pungent smell. Even its Latin name hints at its long-standing reputation – it's traced back to "valere", Latin for "to be healthy and strong". Across generations, valerian has come to be seen as the evening and calming plant par excellence, and it remains one of the most extensively studied medicinal plants to this day. We've described in detail how the root is harvested and processed in Valerian, Explained Plainly.

The Key Differences at a Glance

Even the plant part used shows how different these two classics are: with St. John's wort, it's the flowering herb; with valerian, it's the root. The traditional areas of use, the characteristic compounds, and – quite practically – the time of day they're taken also differ noticeably. These aren't just details for botanists; in everyday life, they determine which plant actually suits your situation and what you need to watch out for when using it. The table below sums up the key points.

Which One Fits When?

The most honest answer is: it depends on what you're actually looking for. If your main concern is evening calm and falling asleep more easily, valerian is the traditional candidate. Many people use the root when they struggle to wind down in the evening, leave the day feeling tense, or can't switch off a spinning carousel of thoughts. Other classics fall into this same category of evening plants: we've compared how valerian relates to the body's own sleep hormone in Melatonin or Valerian, and passionflower for calming is traditionally valued in this same context.

If, on the other hand, emotional balance over a longer stretch of time is the main concern – during the darker months, say, or in demanding phases of life – St. John's wort is traditionally the one people turn to. Here, though, patience is required: unlike a simple evening routine, St. John's wort is traditionally intended for course-based use over several weeks. And – particularly important – before you start, you should be aware of the possible interactions, which we cover in detail further below.

What matters here isn't which plant is "stronger", but which one fits the occasion. Someone who can't wind down in the evening after an intense week is looking for something different than someone who wants to maintain steady emotional balance through the gloomy season. It's therefore worth being honest with yourself, before reaching for the shelf, about what you're actually dealing with right now – that alone usually narrows the choice down.

Forms and Intake, According to the Serving Recommendation

Both plants come in similar forms: capsules, tablets, coated pills, tea, or a liquid tincture. Which form is right for you mainly depends on your daily routine. Capsules and tablets are precisely dosed, taste-neutral, and practical on the go. Tea, on the other hand, is part of a deliberate evening ritual – especially with valerian, where slowly winding down is part of the concept anyway. With St. John's wort, you should know that its typically bitter, slightly resinous taste comes through clearly in tea. Valerian root, incidentally, is traditionally steeped cold for a tea and left to infuse for hours – one more reason many people prefer ready-dosed capsules in everyday life.

The same basic rule applies to quantity in both cases: stick to the serving recommendation on the packaging and don't exceed it on your own initiative. Valerian is traditionally taken around 30 to 60 minutes before bedtime, with additional doses spread through the day if needed. St. John's wort is traditionally used during the day and over several weeks – experience suggests the effect doesn't show up overnight here, but requires that famous patience. A practical advantage of capsules is also that the content stays consistent, whereas self-gathered herbs can vary considerably depending on harvest and storage. If you'd like to focus specifically on the flowering herb alone, single-variety St. John's wort capsules made in Germany offer an uncomplicated option.

Can St. John's Wort and Valerian Be Combined?

Because the two plants traditionally cover different concerns, there are products that bring several classics together in a single formula. Scheunengut's "Inner Balance" complex, for example, brings St. John's wort, valerian, and passionflower together in one capsule. Combinations like this can be practical if you want to bundle several traditional plant properties in one place, rather than taking several individual products side by side. The same neutral classification, in line with tradition, applies to every plant involved – so a combination product doesn't promise more than its individual components do.

One thing remains crucial, though: as soon as St. John's wort is included – whether on its own or as part of a combination – the same safety notes apply as for the pure herb. The possible interactions don't disappear just because the plant is part of a blend. That's exactly what the next section is about.

Safety and Interactions – What You Need to Know

The most important difference between the two plants isn't in how they're used, but in safety. St. John's wort is not a harmless "little herb". It can weaken the effect of numerous medications – including, among others, the contraceptive pill, certain antidepressants, and blood thinners. Its possible influence on hormonal contraception is especially relevant, since it's easily overlooked in everyday life. St. John's wort can also increase the skin's sensitivity to light, which is why extended sun exposure and sunbed visits should be approached with caution while using it. Germany's Verbraucherzentrale (consumer advice centre) explicitly points out these interactions, and the EMA monograph on St. John's wort addresses the topic as well. You'll find all the details in our article St. John's Wort: Use & Interactions.

Valerian, by contrast, is considered comparatively uncomplicated and is classified in the EMA monograph on valerian root as a traditional herbal preparation. Since some people feel more tired after taking it, you should first observe how you respond before getting behind the wheel or operating machinery.

For both plants, the same principle also applies: during pregnancy and breastfeeding, with existing health conditions, or if you regularly take medication, you should check with a doctor before use. Never stop taking a prescribed medication on your own initiative to "make room" for a herbal product – if in doubt, a quick check at the pharmacy can also confirm whether something might clash with your medications.

Conclusion: Your Decision-Making Guide

Pitting St. John's wort against valerian is misleading – they simply answer two different questions. If your focus is the evening, calm, and falling asleep more easily, valerian is the obvious, uncomplicated classic. If everything revolves around mood and emotional balance over a longer stretch of time, St. John's wort traditionally comes into view – but only once you've checked the interactions, above all with the pill and other medications.

Because no health claims are currently authorised for either plant under the EU register, our classification remains deliberately neutral: this is about traditional use, not promises of a cure. Perhaps the most honest piece of decision-making help, in the end, is a brief pause – with yourself, to clarify what you're actually dealing with, and, if medications are involved, with your doctor. That way, you're not making a decision from the gut, but one that genuinely fits you and your daily life.

Frequently Asked Questions

What's the main difference between St. John's wort and valerian?

St. John's wort is traditionally associated with mood and emotional balance and is used as a course over several weeks. Valerian is the classic evening plant for calm and falling asleep. On top of that comes a safety difference: St. John's wort can interact with many medications, while valerian is considered comparatively uncomplicated.

Can you take St. John's wort and valerian together?

There are combination products that bring both plants together (often supplemented with passionflower). What matters is this: as soon as St. John's wort is included, the same interaction notes apply as for the pure herb. If you take medication, check with a doctor before use.

Why is St. John's wort considered tricky with medications?

St. John's wort can weaken the effect of numerous medications, including the contraceptive pill, certain antidepressants, and blood thinners. It can also increase the skin's sensitivity to light. The Verbraucherzentrale and the EMA monograph both explicitly point out these interactions.

What's better for falling asleep – St. John's wort or valerian?

For the evening and falling asleep more easily, valerian is traditionally the obvious, uncomplicated classic; it's usually taken 30 to 60 minutes before bed. St. John's wort, by contrast, is traditionally geared towards mood and emotional balance over several weeks, not towards a single night.