No known drug interactions for the matched ingredients — not a guarantee none exist. Check your meds →
Dietary supplement

Tu Si Zi Ingredients & Drug Interactions

by Hawaii Pharm

Liquid Category: Botanical
No known interaction
The interaction bottom line No known interaction

Tu Si Zi is a dietary supplement by Hawaii Pharm with 1 active ingredient. Its ingredients are commonly taken for sexual health and impotence, energy and fatigue, kidney and reproductive support (in traditional medicine).We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.

HelloPharmacist Scorecard of Tu Si Zi by Hawaii Pharm

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

Tu Si Zi contains one active ingredient: Cuscuta chinensis Seed Extract, Dry — commonly known as dodder. This is a liquid supplement, and it also contains alcohol, water, and glycerin as inactive ingredients to preserve and deliver the extract.

Does it work?

Couldn't assess
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not assessable

This is a single-ingredient Dodder product and its label doesn't state a use — see Dodder's own graded uses on its monograph.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The evidence for dodder isn't established in the data we hold. Both depression and atopic dermatitis (eczema) — the two conditions listed for this product — carry a rating of insufficient reliable evidence to rate.

That means studies haven't yet built a clear picture of whether it works for these uses. Talk with your doctor or pharmacist about whether dodder makes sense for what you're trying to address.

The evidence, ingredient by ingredient Dodder

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Dodder is generally well tolerated when taken by mouth. High doses may bring on intestinal cramping (colic) and diarrhea.

A small number of people taking a combination product containing dodder seed extract reported loss of appetite, mild indigestion, and a feeling of stomach heaviness — though it's unclear whether dodder was the cause. The safety data are limited, so use it cautiously and under the guidance of a healthcare professional.

Dodder is not recommended during pregnancy or breastfeeding due to insufficient safety information.

Side effects, ingredient by ingredient Dodder

Meds to double-check

No known interactions
Known Interaction Concern · database check
No known interactions

No medication interactions are currently documented for the matched ingredients — that isn't a guarantee none exist.

Why this rating?
  • None of the 1 matched ingredient has a documented medication interaction on file.

No interactions are documented in our data for the dodder ingredient in this product. That's not a guarantee none exist, so run your medications through the tool below and check with your doctor or pharmacist before adding Tu Si Zi to what you're taking.

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. No medication interactions are currently documented, and safety information is well characterized.

Tu Si Zi may appeal to someone exploring traditional remedies for mood or skin concerns, but the evidence for either use isn't established yet. Because human safety data are thin, this is one to discuss with your doctor or pharmacist before you start — especially if you're pregnant, breastfeeding, or taking other medications or supplements.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Oct 24, 2023.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Tu Si Zi, straight from the product label.

Brand Hawaii Pharm
Barcode (UPC) 840253653352
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Oct 24, 2023
DSLD ID 301947
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Tu Si Zi by Hawaii Pharm, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
0.7 mL
Maximum serving Sizes:
1 mL
Servings per container
120
UPC/BARCODE
840253653352
IngredientAmount% DV
Cuscuta chinensis Seed Extract, Dry983 mg--

Other ingredients: Alcohol, Water, Glycerin

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Brand IP Statement(s)

Hawaii Pharm Herbal Extract Highest quality since 2008

Suggested/Recommended/Usage/Directions

Suggested use: Shake well before using. For adults add about 20-30 drops (0.7-1 mL, one full squeeze of the dropper bulb) to some juice or water, up to 4 times a day.

Precautions

Warning: We recommend to seek expert medical advice before taking.

Do not use if you are allergic to any ingredients.

Consult your physician before giving to children under 18, during pregnancy, if nursing or taking medications.

Consult your physician before giving to children under 18, during pregnancy, if nursing or taking medications.

May affect the ability to drive and operate machinery. May have contraindications, can cause side effects and adverse reactions. Do not use if seal is broken or missing.

Keep out of the reach of children!

Storage

Store in a cool dry place.

Seals/Symbols

cGMP Made in compliance with cGMP 21 CFR 111 in an FDA registered and inspected facility.

Organic Alcohol Based USA Made in United States of America

FDA Disclaimer Statement

This product has not been evaluated by the FDA and is not intended to diagnose, treat, cure or prevent any disease.

General Statements

Scan this QR-code to get 15% discount on your next purchase. Limited time deal.

Formula

Cuscuta chinensis

Organic Alcohol Based

Formulation

Only natural ingredients Purity is laboratory tested and verified

All the raw materials are gluten-free by their nature No artificial colors, flavors, or preservatives

Not tested on animals

Organic Alcohol Based

Made in USA, Hawaii

FDA Statement of Identity

Herbal Supplement

See for yourself

Tu Si Zi by Hawaii Pharm label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

What’s inside

The Ingredients in Tu Si Zi by Hawaii Pharm

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size0.7 mL Dosage formLiquid Servings per container120 Amounts shown are per serving.

983 mg per serving

Dodder (Cuscuta) is a parasitic plant whose seeds are used in traditional Chinese and Middle Eastern medicine, mainly for sexual, kidney, and energy-r...

Cuscuta chinensis Seed Extract, Dry monograph & interactions

Other (inactive) ingredients: Alcohol, Water, Glycerin. These complete the product’s ingredient list but are not active constituents.

Interaction report

Tu Si Zi by Hawaii Pharm Drug Interactions

We don’t currently list any known drug interactions for the mapped ingredients in Tu Si Zi. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.

The maker

Brand information

Manufacturer and brand details for Tu Si Zi, from the product label.

Hawaii Pharm

See all Hawaii Pharm products
Name
Hawaii Pharm LLC
Street Address
510 Sumner St. Ste. 613
City
Honolulu
State
HI
ZipCode
96817
Phone Number
888-854-2924
Web Address
www.hawaiipharm.com
Pharmacist Counseling Corner

Tu Si Zi by Hawaii Pharm: Common Questions

Does Tu Si Zi by Hawaii Pharm interact with any medications?
We do not currently list a known interaction for the mapped ingredients in Tu Si Zi. This does not guarantee none exist, so confirm with your pharmacist.
How can one product interact with so many drugs?
Tu Si Zi contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
What does dodder actually do?
In traditional use, dodder has been studied for depression and atopic dermatitis (eczema). The evidence we hold rates both as insufficient to say whether it works. Ask your doctor or pharmacist whether it's worth trying for your particular situation.
What side effects should I watch for?
Dodder is generally well tolerated. Higher doses may cause intestinal cramping and diarrhea. A few people in studies reported loss of appetite, mild indigestion, or stomach heaviness when taking a combination product that included dodder seed extract, though it's not certain dodder caused it. Traditional sources suggest not exceeding 8 grams daily of dodder aerial parts.
Can I take this while pregnant or breastfeeding?
The safety data aren't there, so dodder is best avoided during both pregnancy and breastfeeding. Talk with your doctor or pharmacist about what's right for you in these situations.
Why is the safety data limited?
Dodder is a traditional herb with less extensive modern human testing than many other supplements. The caution here is honest — we know less about its long-term safety profile than we'd like, so it's important to use it under a healthcare professional's guidance.
What's in this product besides the active ingredient?
Tu Si Zi also contains alcohol, water, and glycerin — these are inactive ingredients that preserve the extract and make it a liquid you can take by mouth.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Tu Si Zi is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Tu Si Zi label
Go deeper

The Full Monographs Behind Tu Si Zi’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Sources

Sources & How We Checked

Tu Si Zi's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 3 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Dodder 3 references
  1. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  2. Mehrbani M, Choopani R, Fekri A, Mehrabani M, Mosaddegh M, Mehrabani M. The efficacy of whey associated with dodder seed extract on moderate-to-severe atopic dermatitis in adults: A randomized, double-blind, placebo-controlled clinical trial. J Ethnopharm PubMed
  3. Firoozabadi A, Zarshenas MM, Salehi A, Jahanbin S, Mohagheghzadeh A. Effectiveness of Cuscuta planiflora Ten. and Nepeta menthoides Boiss. & Buhse in major depression: a triple-blind randomized controlled trial study. J Evid Based Complementary Altern Med

See these in context on the Dodder monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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