What is Seijobofuto?

Seijobofuto is a Kampo formula made from twelve dried herbs, taken as a granulated water extract. Its name translates roughly as "the wind-dispelling decoction that clears the upper body", which describes the traditional theory behind it: a pattern of "heat" concentrated in the head and face, showing up as a red complexion, oily skin and inflamed spots on the forehead, nose and cheeks. It is one of the handful of Kampo prescriptions that Japanese dermatologists reach for when treating acne, and it is covered by Japan's national health insurance as prescription item number 58.

The formula combines bitter, cooling herbs (Coptis, Scutellaria, Gardenia, Forsythia) with lighter aromatic herbs said to disperse heat outward from the surface (Saposhnikovia, Schizonepeta, Mentha, Angelica dahurica), plus Platycodon and Cnidium, immature bitter orange, and a small amount of licorice as a harmoniser.

It matters who it is given to. In traditional practice Seijobofuto is matched to a person of reasonable physical stamina with visibly red, hot-looking, pus-headed acne — not to someone pale, cold-intolerant and easily tired, who would classically be given a different formula. That pattern-matching is central to how the formula is used in Japan, and it is also the main reason clinical trials of it are hard to design and remain few and small.

What forms does Seijobofuto come in?

In Japan the formula is nearly always taken as a standardised dried extract granule (2.5 g sachets, three times a day) produced by manufacturers such as Tsumura or Kracie; this is the form used in the published clinical reports. Tablets and capsules of the same extract exist and are more palatable but often deliver less extract per dose, so check the raw-herb equivalence on the label. A traditional decoction, simmered from sliced crude herbs by a Kampo pharmacy, is closer to the classical preparation and can be adjusted herb by herb, but is time-consuming and bitter. Products sold outside Japan vary enormously in strength and are not always the full twelve-herb formula.

Where it comes from:

The prescription appears in Manbyō Kaishun (Wanbing Huichun, "Restoration of Health from the Myriad Diseases"), compiled by the Ming physician Gong Tingxian in 1587, where it is listed for "face sores" and heat-type eruptions of the head and face. Japanese Kampo physicians adopted it and, over the Edo and modern periods, narrowed its use to a fairly specific picture: acne and follicular eruptions in a full-bodied, ruddy patient. When Japan standardised Kampo extract preparations for insurance coverage in the 1970s and 1980s, Seijobofuto was included, which is why it is now dispensed in ordinary Japanese dermatology clinics alongside conventional acne treatments rather than only in specialist practice.

What does Seijobofuto help with?

• Acne vulgaris (inflammatory, on the face): This is the formula's main modern use and the only one with any clinical literature behind it. Japanese dermatology reports and small open-label studies describe reductions in the number of red papules and pustules over roughly 4–8 weeks, sometimes used alongside topical treatment. The studies are small, mostly uncontrolled, and largely conducted in Japan in patients selected by traditional pattern, so the true effect size is uncertain. It is best thought of as a reasonable option for mild to moderate inflammatory acne, not a substitute for treatment of severe, scarring or cystic acne.
• Adult and post-adolescent acne: Kampo practitioners often use Seijobofuto for adults whose acne is red and inflamed rather than comedonal, particularly when it sits on the forehead, nose and cheeks. Formal trial evidence in adults specifically is thin; most published cases involve teenagers and young adults. Where adult acne is hormonally driven, cyclical, or accompanied by irregular periods or hirsutism, traditional practice often points to different formulas, and medical assessment for an underlying cause is more useful than trying this one first.
• Facial folliculitis: Traditionally the formula covers inflamed follicular eruptions on the face and hairline, not only acne proper. This is a traditional indication carried forward from the sixteenth-century source text; there is no controlled human trial evidence for folliculitis as a distinct condition. Bacterial folliculitis, and especially anything spreading, tender or feverish, needs a doctor rather than a herbal formula, because it can require antibiotics.
• Facial redness and flushing with eruptions: The classical indication is "heat in the upper body" — a hot, red face with visible spots. Some practitioners extend this to rosacea-like redness. Evidence here is traditional and anecdotal only; rosacea has effective conventional treatments and often worsens without them, so this should not be a first-line self-treatment. If the redness is persistent, comes with visible blood vessels, eye irritation or stinging, get a dermatological diagnosis first.
• Scalp and hairline inflammatory spots: The source text lists head and face sores, and Japanese practice includes inflamed spots along the hairline and on the scalp. This use rests on tradition and clinical impression rather than trials. Persistent scalp pustules, hair loss around the lesions, or painful boils warrant medical assessment, since conditions such as folliculitis decalvans or a fungal infection look similar and need different treatment.

What can Seijobofuto help prevent?

• May reduce the appearance of new inflamed spots while it is being taken — this is described in small Japanese clinical reports and traditional practice, not established by controlled trials, and there is no evidence of benefit persisting after stopping
• No evidence that it prevents acne scarring; scarring acne needs prescription dermatological treatment

Which foods are rich in Seijobofuto?

The single most relevant dietary point is licorice. Licorice sweets, licorice teas, some herbal blends and certain Chinese and Japanese confections all contain glycyrrhizin, and they stack with the kanzo in this formula to raise the risk of potassium loss, swelling and higher blood pressure. Keep them low or avoid them while taking it. Salt intake matters for the same reason — a high-salt diet makes glycyrrhizin-related fluid retention and blood pressure rise more likely. Potassium-rich foods (leafy greens, beans, potatoes, bananas, avocado) are sensible support, though they do not remove the need for monitoring. For acne itself, the food evidence that holds up best is around high-glycaemic diets and, less consistently, skim milk; reducing sugary drinks and refined starches is a reasonable adjunct. Traditional Kampo advice with a 'heat' formula is also to go easy on alcohol, deep-fried food and heavy spice, which is consistent enough with general acne advice to be worth following.

What are the side effects of Seijobofuto?

• Stomach discomfort, nausea, poor appetite: fairly common, as the formula is strongly bitter and cooling
• Loose stools or diarrhoea
• Pseudoaldosteronism from the licorice component: low blood potassium, raised blood pressure, ankle or facial swelling, muscle weakness, muscle cramps — more likely with higher doses, longer use, in older people, and with diuretics
• Rash or itching (hypersensitivity)
• Rare: drug-induced liver injury, reported with several Scutellaria-containing Kampo formulas — jaundice, dark urine, unusual fatigue
• Rare: interstitial pneumonia, reported with Scutellaria-containing Kampo formulas — new dry cough, breathlessness, fever
• Rare but important with years of continuous use: mesenteric phlebosclerosis linked to the gardenia (sanshishi) component — persistent abdominal pain, bloating, diarrhoea or constipation

Good to know:

Most people who take Seijobofuto for a few weeks have no more than mild digestive upset. The serious problems are dose- and duration-dependent and come from three specific herbs: licorice (potassium and blood pressure), Scutellaria (rare liver and lung reactions), and gardenia (bowel vessel changes after years of use). This is a formula to take with review, not indefinitely and unsupervised.

How much Seijobofuto should you take?

• Recommended daily: In Japan the standard adult prescription is 7.5 g per day of the dried extract granules, divided into two or three doses. Traditional decoctions use a correspondingly larger weight of raw herbs. Because the formula contains licorice, the total daily glycyrrhizin from all sources matters — do not combine it with other licorice-containing Kampo formulas without a practitioner's oversight.
• Best time of day: Split across the day, typically morning, midday and evening.
• With or without food: Traditionally taken before meals or between meals, on a relatively empty stomach. If it causes nausea or stomach discomfort, taking it just after food is a reasonable compromise.
• Time to effect: Most reports assess response at 4 weeks and again at 8 weeks. If nothing has changed by around 8 weeks, Kampo practice is to reconsider the formula rather than persist.
• How long to take it: Short courses of weeks to a few months, with review. Long continuous use is where the real risks appear: licorice-related potassium loss and blood pressure rise can develop over months, and mesenteric phlebosclerosis from gardenia has been reported after several years of uninterrupted use. Anyone taking it beyond a few months should have blood pressure and potassium checked periodically.