Dong quai
Dong Quai in Quietum Plus: The 'Ear Tonic' Claim Checked
Dong quai is a Chinese herb root, Angelica sinensis, listed on tile 3 of the Quietum Plus sales page, which calls it a "Superior ear tonic". We found no hearing or tinnitus trial of dong quai. Its best-documented risk is bleeding reports with warfarin, and the capsule amount is not printed.
Written by the Quietum Plus label deskUpdated
01The ingredient
What is dong quai, and why is it in Quietum Plus?
Dong quai is the dried root of Angelica sinensis, a plant grown in China, and it has a tile of its own on the sales page.
Dong quai (say "dong chway") is a root used in Chinese herbal practice. The sales page lists it alone on tile 3 of 9 (Quietum Plus sales page). Every other tile pairs two or three ingredients, so dong quai gets more room than most.
The bottle does not mention it. The front label shows only Clear Mind, Memory & Focus and Mood Support. The amount in a capsule is not printed on the bottle front, in our images or on the sales page, so nobody outside the maker can say how much you would take.
| Name on the sales page | Dong Quai |
|---|---|
| What it is | Angelica sinensis root, a Chinese herb |
| Sales-page tile | Tile 3: “Superior ear tonic” |
| Group (ours) | Tonic herbs |
| Amount in a capsule | Not printed |
| Usually sold or studied for | Traditional Chinese herb; the sales page calls it a "Superior ear tonic" |
| Research on hearing or tinnitus | No hearing or tinnitus trials found |
| Main caution | Case reports of serious bleeding when taken with warfarin; ask first if you take any blood thinner. |
The tile photo shows dried, sliced root, as the vendor supplied it. It is not a picture of the capsule contents.
02The claim
Why does the sales page call dong quai a "superior ear tonic"?
The page prints the words "Superior ear tonic" beside dong quai and gives no study, dose or source for them.
The phrase "Superior ear tonic" is advertising wording. A tonic is an old term for something taken to strengthen the body in general, and it has no medical test. The sales page ties it to the ear without naming a trial (Quietum Plus sales page).
It is also the only ingredient claim on the page that points at hearing. The headline and the "hearing wire" story are separate, and the other tiles speak of adaptogens, mood and cell aging. The claim sits next to the evidence below.
| Sales page says | What we found | Not printed |
|---|---|---|
| "Superior ear tonic" (tile 3, dong quai) | No trial of dong quai for hearing or tinnitus turned up in our sources. The US tinnitus guideline advises clinicians not to recommend supplements for persistent, bothersome tinnitus (AAO-HNSF Tinnitus Update 2026). | Amount, study, form of the root |
The ear claim is not backed by the sources we could read, and no trial tested Quietum Plus itself. Treat "tonic" as a label, not a finding.
03The research
Is there research on dong quai and hearing or tinnitus?
No. We found no human trial of dong quai for hearing loss or ringing in the ears.
The NIDCD says tinnitus has many causes, such as noise, hearing loss, some medicines, earwax and injury, and that no supplement advertised for it has been shown to work (NIDCD, Tinnitus). Dong quai is one of the herbs that statement covers.
Tested supplements for ringing have not done well. A Cochrane review of 12 ginkgo trials found little or no effect on tinnitus (Cochrane, Ginkgo for Tinnitus), and a review of 3 zinc trials found no evidence of benefit (Cochrane, Zinc for Tinnitus). Those are not dong quai, but they show how often a hopeful tonic fails a fair test.
The sales page lists 56 references. We found none that tests dong quai in people with ringing or hearing loss. Without that, "Superior ear tonic" stays a claim.
New ringing, ringing in one ear or ringing that lasts needs a hearing exam, not a herb. The guideline also favors cognitive behavioral therapy and a hearing aid check when there is hearing loss (AAO-HNSF Tinnitus Update 2026).
04Medicines
Does dong quai interact with warfarin and other medicines?
Yes, it may. A review lists case reports of serious bleeding when dong quai was taken with warfarin.
Warfarin is a blood thinner with a narrow safe range. A review of herb and warfarin reports lists bleeding events, including bleeding after surgery, bruising under the skin and bleeding in the gut or brain, in people taking warfarin with herbs such as Angelica sinensis, which is dong quai, and ginger (Milic et al., Warfarin-Herb Interactions).
Ginger is also in Quietum Plus, on tile 4. Case reports cannot show how often this happens, and the review gives no dong quai dose.
Warfarin or other blood thinners
Bleeding reports. Your clinic may want extra blood tests, or may say to avoid it.
Before surgery
Tell your surgeon about every supplement. NCCIH advises this before any procedure (NCCIH, Using Dietary Supplements Wisely).
Any daily medicine
Herbs are mixed products, and interactions are the larger worry in blends (Brunetti et al., Herbal Sexual Enhancers).
Do not stop a prescribed blood thinner on your own. Only the clinician who prescribed it should change it. Our full list is on the supplements and medicines page.
Quietum Plus: from $49 a bottle60 capsules a bottle · 2, 3 or 6 bottles · 60-day money-back guarantee
See packs05Sun and pregnancy
Can dong quai make skin sensitive to sunlight, and is it safe in pregnancy?
We could not confirm either point from our sources, so treat both as questions for your clinician.
Sun sensitivity is sometimes listed for dong quai in herbal references. None of the sources we reviewed covers it, so we do not state it as fact. If you take the capsules and notice a rash or sunburn that comes easily, stop and tell your pharmacist.
Pregnancy is a clearer case for caution. NCCIH notes that many supplements have not been tested in pregnant women, nursing mothers or children (NCCIH, Using Dietary Supplements Wisely). We found no safety data for dong quai in pregnancy in our sources.
The sales page itself says that if you are pregnant, nursing or taking medication, you should consult your physician (Quietum Plus sales page, claims). It also says the formula is "designed for all ages and medical conditions", and those two lines do not fit together. Follow the warning, not the slogan.
Skip Quietum Plus unless your doctor has reviewed the full label of your bottle, including the amounts that our images do not show.
06Background
How is dong quai used in traditional Chinese medicine?
It is a long-used root in Chinese herbal formulas, usually boiled or ground, and a tradition is not a trial.
In Chinese herbal practice, dong quai root is usually one part of a multi-herb formula rather than a single product. Practitioners choose the form, the dose and the partner herbs for each person.
A capsule that holds dong quai with 17 other ingredients is a different thing. The formula is fixed, the dose is not printed, and nobody tailors it to you. Our sources do not describe a traditional use for the ear, so we do not link the two.
Trials and case reports give more reliable answers about safety than tradition does. For dong quai, the answer we can document is the bleeding report with warfarin (Milic et al., Warfarin-Herb Interactions).
07Before you buy
What should you check before taking Quietum Plus because of dong quai?
Check your medicines, check your bottle and check your ears, in that order.
Check your medicines
If you take warfarin or any blood thinner, ask your prescriber before the first capsule.
Read the full label
Look for the amount of each ingredient, the serving and the warnings on your own bottle. See the label page.
Get ringing checked
A hearing exam comes first. Dong quai has no evidence behind the ear claim.
When ringing is a doctor question, not a supplement question
Sudden hearing loss in one ear (same day), ringing that beats with your pulse, ringing after a head injury, or ringing with dizziness, weakness or a drooping face. Call 911 for sudden weakness or a drooping face. Sources: NIDCD on sudden deafness (NIDCD, Sudden Deafness), the NHS (NHS, Tinnitus), Mayo Clinic (Mayo Clinic, Tinnitus) and the tinnitus guideline (AAO-HNSF Tinnitus Guideline 2014).
The 18 names are on the ingredients page, and the wider risks are on side effects. Keep taking any prescribed medicine unless your doctor says otherwise.
08FAQ
Dong quai questions, short answers
What is dong quai?
Dong quai is the dried root of Angelica sinensis, an herb used in Chinese herbal practice. The Quietum Plus sales page lists it alone on tile 3 (Quietum Plus sales page). The amount in a capsule is not printed, so the label on your bottle is the only guide.
Why does the sales page call dong quai a 'superior ear tonic'?
The page prints "Superior ear tonic" beside dong quai and cites no study for it (Quietum Plus sales page). We found no trial of dong quai for hearing or tinnitus, so the phrase is advertising wording, not a finding.
Does dong quai interact with warfarin?
It may. A review lists case reports of serious bleeding when Angelica sinensis, which is dong quai, was taken with warfarin (Milic et al., Warfarin-Herb Interactions). If you take any blood thinner, ask your prescriber before using Quietum Plus, and do not stop the medicine yourself.
Can dong quai make skin sensitive to sunlight?
Our sources do not cover it, so we cannot confirm it. Some herbal references mention sun sensitivity. If you take Quietum Plus and burn easily or get a rash, stop and ask your pharmacist or doctor.
Is dong quai safe in pregnancy?
We found no safety data for dong quai in pregnancy. NCCIH notes that many supplements are untested in pregnant women (NCCIH, Using Dietary Supplements Wisely), and the sales page tells pregnant buyers to consult a physician (Quietum Plus sales page, claims). Ask your doctor before taking it.
How is dong quai used in traditional Chinese medicine?
Dong quai root is usually one part of a multi-herb formula chosen for the person, often boiled or ground. A fixed capsule blend is different, and tradition is not a trial. Our sources link it to bleeding cautions, not to hearing (Milic et al., Warfarin-Herb Interactions).
Does dong quai help tinnitus or hearing loss?
No trial we found shows that it does. The NIDCD says no supplement advertised for tinnitus has been shown to work (NIDCD, Tinnitus), and the 2026 US guideline advises against recommending supplements for persistent, bothersome tinnitus (AAO-HNSF Tinnitus Update 2026).
09Who wrote this
Written and reviewed by
Pages built from the bottle images, the sales page and linked NIH, NIDCD, FDA, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by Goquietumplus, a USA Authorized Quietum Plus Retailer, not by the manufacturer. We earn money when you buy through our order links.
Keep reading
More about Quietum Plus
USA Authorized Quietum Plus Retailer
Ready to try Quietum Plus?
Read the label, check your medicines with your doctor, then pick a pack. Bigger packs cost less per bottle, and the 60-day guarantee covers every pack.
- Secure BuyGoods checkout
- 60-day money-back guarantee
- Ships from the U.S.
