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Si Miao Pian
An All Natural Chinese Herbal Supplement
Si Miao Pian (Si Miao Wan, Dampclear™, Si Miao San, 四妙片) is a classic Chinese herbal remedy that clears Heat and eliminates Dampness in cases of Damp-Heat. This formula may be used to support healthy uric acid metabolism.
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    What does it do?

    Supports Leg Comfort

    Think what it would be like to be able to go for brisk walks, free of discomfort. Or go up and down a flight of stairs with vigor. Think what it would be like just to go get the mail without the experience feeling like a trek up Mt. Everest. And think what a relief it would be going to the bathroom and having a strong urination without stopping and starting in fits.

    Many people believe living with body discomfort and weakness is just a part of the normal aging process. But if you have joint discomfort and your lower extremities prevent you from living life to the fullest, our classic formula, DampClear™ may help.

    Ancient TCM Formula Clears Heat and Removes Dampness

    DampClear is an herbal traditional Chinese medicine (TCM) remedy. Chinese medicine doctors have historically dispensed this formula (known as Si Miao San in TCM) to regulate blood flow in the lower extremities; metabolize fluids; and support normal joint function.

    Although Damp-Heat theory dates back several centuries, it applies more than ever to modern lifestyles. One major reason Damp-Heat develops is diet. Too much sugar, greasy and fatty foods (and sometimes spicy food, depending on your constitution) can lead to internal Damp-Heat.

    When Damp-Heat accumulates in the body, according to TCM theory, it particularly affects the sensitive, hollow spaces, i.e. the joints. That's because Damp-Heat impedes the flow of Qi. Think about when you're on a cross-country or international flight. Your joints get stiff and discomforting from sitting for so long. Your circulation and life energy force--Qi--is impeded. (Just as you feel stiff in the lower body from flying, Damp-Heat first affects the lower extremities.) The result of this can manifest as redness around the feet, ankles or knees.

    Dampness obstructs harmonious Qi flow and causes stiff joints and heavy limbs. As for Heat, it dries up the fluids and injures Yin. When fluids dry, it causes a vicious cycle, leading to more Dampness.

    How Does DampClear Work?

    The first herb in the formula, Huang Bo (Amur Cork Tree Bark) purges fire and resolves toxicity. Cang Zhu (Atractylodes Rhizome) dries dampness and strengthens the Spleen.

    Next in the formula is Niu Xi (Achyranthes Root), which tonifies the Liver and Kidneys, and dispels stasis and unblocks the Channels. Yi Yi Ren (Coix Seed) clears heat and strengthens the Spleen and leaches out dampness.

    These four herbs work synergistically to clear Damp-Heat. There's good reason that the classic formula for this is known as "four marvels pill.".

    What is the formula composition?

    A proprietary blend of

    Phellodendron stem barkPhellodendron chinense(Huang Bo)
    Job's tears seedCoix lacryma-jobi(Yi Yi Ren)
    Cang-zhu atractylodes rhizomeAtractylodes lancea(Cang Zhu)
    Achyranthes rootAchyranthes bidentata(Niu Xi)
    Other ingredients: .
    We use as little fillers/binders as possible which together amounts to % of the tablet weight.
    What is Available?
    Guang Ci Tang® Si Miao Pian (Dampclear™) 40 grams in 200 mg 200 tablets @ 5:1 strength.

    At a true 5:1 concentration, this product represents the most potent form of Si Miao Pian (San/Wan) on the market. One tablet is equal to 1 gram of raw herb.

    Please note that Guang Ci Tang® Si Miao Wan in the pill form, which has the same formulation as the tablet, is discontinued.

    Si Miao Pian tablets are made with all natural herbs that are tested for authenticity, quality, and potency. A traditional water decoction is prepared with the herbs to reproduce the time-tested action of the formula, and this water decoction is concentrated with our proprietary technology to form a potent extract that is made into easily absorbed tablets, which are remarkably effective, easy to use, and safe. The tablets are produced by Guang Ci Tang® in our state of the art cGMP-certified facility and imported in accordance with U.S. FDA guidelines. When you choose Guang Ci Tang® products, you are taking advantage of a wonderful fusion of science and tradition that incorporates the highest standards in the field of Chinese medicine today.

    Please note that our tablets may appear neutral in finishing and a little brittle. You may observe a tiny bit of fine powder at the bottom of your bottle and occasionally one or a couple of broken tablets after transportation. This is because unlike other manufacturers, our tablets are not coated as part of our effort to minimize the use of excipients and to make them as pure as possible. These tablets can also be easily dissolved in hot water to serve as tea.

    Guang Ci Tang® Advantages
    Pure. Potent. Proven.
    • True 5:1 concentration
    • Double the strength of regular brands
    • Minimal fillers and binders
    • No pharmaceuticals or dyes
    • Comprehensive lab testing (e.g., heavy metals,etc.)
    • Made in a cGMP certified facility
    • Unbeatable value
    • Safely used in the USA since 1995

    Check for an independent US lab test report.

    How do I use it?

    The standard dosage for Dampclear™ is 5 tablets each time, taken 2 to 3 times daily with or before meals. One bottle lasts 11 to 17 days. The dose may be doubled for a quicker and stronger response as needed. Consult your practitioner for precise dosage recommendations based on body weight and other factors.

    Dampclear™ has a mild action and therefore it usually takes time before its effects become apparent.

    1. Use with caution in conditions due to Yin deficiency.
    2. Not suitable for joint discomfort with chilly sensation.
    3. Consult your herbalist or physician before use if you are taking other medicines.
    4. Keep out of reach of children.


    Disclaimer: Product reviews solely reflect the views and opinions expressed by the contributors and not those of ActiveHerb and are provided for informational purposes only. ActiveHerb does not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer.
    Dampclear™ (Si Miao Pian) is rated 4.4 out of 5 by 14.
    Rated 5 out of 5 by from Surprising results I have had localized scleroderma in my left foot and leg since 2001. There is to my knowledge only one drug of "western" medicines that I was given 13 years ago, which made me ill, so I quite taking it after 6-8 months. I found Dampclear after doing some research in TCM. It is helping with the extreme swelling and redness, pain and lack of movement of my foot when it is swollen. This kind of swelling is not the kind of swelling that a diuretic pill can take care of. Dampclear seems to be helping keep the swelling under control and so far this summer, I've been having a better "go of it" because of that. I've been more comfortable.
    Date published: 2014-07-09
    Rated 5 out of 5 by from I really helped my joints, specially my knees and shoulders I am 71 years old now and have been active in weight lifting and in martial arts all my life. I have a black belt in shotokan karate from INKAI in Indonesia and a Brown belt it Ju Jitsu from Mir Ali in Azerbaijan. Unfortunately, the stress has taken its toll on my shoulders and knees. I have lost some mobility in my shoulders and often have pain there when attempting everyday actions. Its difficult for me to wash under my arms and take my wallet from a rear pocket. I recently decided to withdraw from a self-defence class at a local gym when both knees began to bother me. I have been taking SI MIAO PIAN for one and a half months. I can now wash under both arms, sleep on my side and my knees are significantly better. I will definitely continue to take "Dampclear"!
    Date published: 2017-12-17
    Rated 5 out of 5 by from Bought this a month ago. My symptoms were swollen lower legs. I knew I had damp heat. Searched for a remedy and this was it. After a week I could see the remedy working. The swelling had gone down by 50%. I continued to this day. I am into my second bottle. 3 pills, 3x a day. The swelling has gone down 90-95%. I am wondering if there is an other issue involved.
    Date published: 2016-11-02
    Rated 5 out of 5 by from Gout This is used in TCM for gout. I even had a healing reaction the first time I took it. I've never seen anything better for gout and knee pain.
    Date published: 2016-02-24
    Rated 5 out of 5 by from Dampclear ( Si Miao Pain ) gets rid of the adema or excess fluid in my legs. I take the maximum suggested dose a day. 5 pills three times a day and have taken dampclear (Si Miao Pain) for a little over a month. I am very satisfied with the results. Thank you.
    Date published: 2016-04-15
    Rated 5 out of 5 by from herbs Excellent service! Thank you for your quick shipping.
    Date published: 2015-05-01
    Rated 5 out of 5 by from Very Good My herbalist told me about this and also said to continue self-massage. It is working very well along with exercise, and a lot of water. I think it is preventing severe deterioration of the bone and hardening of the flesh by moving the toxins that cause arthritis out.
    Date published: 2018-10-17
    Rated 5 out of 5 by from Great product to get rid of dampness in my system I bought 3 bottles of this product months ago. I love it. It really helps me to get rid of the dampness in my system. Before I took this product I felt a lot of discomfort in my digestive system. I took 3xs a day for 2 months and the discomfort seems to go away.
    Date published: 2019-01-07
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    Product Q&A

    After a week on Dampclear I’m seeing improvements.  I just received corydalis relax, hypertensure, and jointsjoy.  Now I’m wondering if taking the four different formulas will be bad for me.  Can you tell me if it’s safe?

    Asked by: 2westies
    It is recommended that you should not take more than 2 formulas at a time. I would try a different combination and see how it works. And don't take them at the same time. I would try at least an hour apart.
    Answered by: Vinny714
    Date published: 2019-03-01
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