St John's Wort Oil (Red Elixir): Traditional Uses, the Research & How to Use It Safely

Pour a bottle of St John's Wort oil into the light and the first thing you notice is the colour — a deep, almost blood red. That colour is not added. It develops on its own when the yellow flowers of Hypericum perforatum are steeped in a carrier oil and left in the sun for weeks. It is one of the oldest infused oils in European folk medicine, and it is still made much the same way today. Here is what it is traditionally used for, what the research has actually looked at, and — importantly — how to use it sensibly.

Why people use St John's Wort oil

• Traditional skin oil. For centuries it has been kept in the house as a topical oil for everyday knocks, scrapes and rough patches of skin.
• Comforting on tired areas. It is often massaged into shoulders, backs and legs after a long day.
• Rich, cushioning feel. It is an infused oil, so it behaves like the carrier oil it was made in — slow-absorbing and nourishing rather than dry-touch.
• That striking colour. The red comes from the plant's own pigments, so a genuinely red bottle is a decent sign the infusion was done properly.
• Simple ingredient list. Flowers and oil. Nothing else needs to be in there.

What the research says

St John's Wort is far better studied as an oral supplement for mood than it is as a skin oil. The topical research is real but limited — a handful of small trials and a good deal of laboratory work. General information, not medical advice.

• A randomised, double-blind trial published in 2010 looked at a topical Hypericum perforatum preparation applied to caesarean-section wounds three times daily for 16 days, and reported better-rated healing and less scarring, pain and itching than placebo. One small trial in one specific surgical setting — interesting, but not something to generalise from.
• Reviews of topical St John's Wort note it has been trialled in settings like atopic dermatitis and post-surgical wounds, while stating plainly that clinical research in this area remains scarce.
• Laboratory work has focused on hyperforin, one of the plant's compounds, and its effects on skin cells and inflammatory signalling. This is cell and test-tube research — it helps explain the traditional use, but it is not evidence of what a bottle of oil does on your arm.

Honest summary: a well-loved traditional oil with early, thin human evidence behind its topical use. Worth having in the cupboard; not a substitute for proper wound care.

How to use it

1. Patch test first. A little on the inner forearm, then wait 24 hours before using it more widely.
2. Warm a few drops between your palms and massage into clean, intact skin.
3. Use it neat, or dilute it into a lighter oil such as sweet almond oil if you prefer something less rich.
4. Use it at night, and keep treated skin out of direct sun. This is the one that matters — see the caution below.
5. Store it somewhere dark and cool. Light degrades the infusion, and that beautiful red will fade.

Important safety notes

• Sun sensitivity. St John's Wort contains hypericin, a light-reactive pigment. Topical preparations are considered to have a low risk of photosensitivity compared with high-dose oral or intravenous use, but the sensible habit is to apply it in the evening and keep treated skin covered or out of strong sun — particularly relevant in a South African summer.
• This is a topical oil only. Do not take it by mouth. Oral St John's Wort is well documented to interact with a long list of prescription medicines — including antidepressants, the contraceptive pill, blood thinners and immunosuppressants — by speeding up how the body clears them.
• Not for serious injuries. Deep cuts, large or blistering burns, animal bites, and any wound that is spreading, hot or oozing need a doctor, not an oil.
• Speak to your doctor or pharmacist first if you are pregnant, breastfeeding, on chronic medication, or already taking anything that makes you sun-sensitive.

Our St John's Wort oils

• Natural Stuff Red Elixir St John's Wort Oil — our traditionally infused red oil.
• Botalife St John's Wort Oil 50ml — a smaller bottle if you would like to try it first.
• Natural Stuff Sweet Almond Oil — a light carrier if you prefer to dilute.

FAQ

Why is the oil red when the flowers are yellow? The red develops during infusion as pigments from the flowers — chiefly hypericin — move into the oil. A pale or yellow bottle usually means a weak or short infusion.

Is this the same as St John's Wort capsules for mood? No. Same plant, completely different product and purpose. This is an oil for external use on skin. Do not swallow it, and do not treat it as a mood supplement.

Can I use it on my face? Many people do, but it is a rich oil, so patch test first and use it in your evening routine rather than before sun exposure.

How long does a bottle keep? Stored in a cool, dark place it will keep well for a year or more. If it smells sharp or rancid, replace it.

References & further reading

• Samadi S et al. The effect of Hypericum perforatum on the wound healing and scar of caesarean. Journal of Alternative and Complementary Medicine, 2010.
• Wölfle U et al. Topical application of St John's wort (Hypericum perforatum). Planta Medica, 2014.
• Hypericum perforatum: Traditional uses, clinical trials, and drug interactions (review).
• Mayo Clinic — St John's wort: safety, side effects and interactions.

This article is for general information only and is not intended to diagnose, treat, cure or prevent any disease. St John's Wort oil is a traditional cosmetic skin oil, not a medicine and not a treatment for wounds, burns, skin conditions or depression. If you have a wound, burn, infection or persistent skin problem, please see your doctor or pharmacist and keep taking any medicine you have been prescribed. Do not take this oil internally.