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Dietary supplement

Clean Chlorella Ingredients & Drug Interactions

by Health Ranger Select

Clean Chlorella label
See full label image
Tablet Or Pill Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Clean Chlorella against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Clean Chlorella is a dietary supplement by Health Ranger Select with 1 active ingredient. Its ingredients are commonly taken for general nutrition and 'detox' support, immune support, liver and kidney support.Based on those ingredients, 337 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are clean Chlorella. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Clean Chlorella by Health Ranger Select

Ask about any prescription or over-the-counter medication and we check it for interactions with Clean Chlorella by Health Ranger Select — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Clean Chlorella by Health Ranger Select

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

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

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.

This product contains one active ingredient: chlorella, a single-celled freshwater algae. It's the whole ingredient — no added actives.

The product is made from 100% chlorella with no other inactive fillers or binders listed.

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

We hold no graded evidence for this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: clean pure chlorella supplement source.
  • Our graded evidence for these ingredients doesn't cover that particular purpose.

Chlorella is possibly effective for pregnancy-related iron deficiency. For other uses — brain tumor, fatty liver disease (NAFLD), depression, and fatigue — the evidence isn't established in our data.

That doesn't mean it doesn't work for these; it means we don't hold enough reliable evidence to rate it one way or the other.

The evidence, ingredient by ingredient Chlorella

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.

Chlorella is generally well tolerated in the short term, but product quality and purity vary widely — so choose carefully. The most common side effects are allergic reactions, abdominal cramping, constipation, diarrhea, fatigue, gas, nausea, sensitivity to sunlight (photosensitivity), and green-tinted stools.

These tend to show up especially in the first two weeks. Serious allergic reactions including anaphylaxis (a life-threatening reaction) are rare but have been reported in people taking chlorella and even in people preparing it.

There isn't enough safety data on chlorella overall, so avoid it unless your doctor has approved it for you.

Side effects, ingredient by ingredient Chlorella

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Chlorella.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 337 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before you start, check with your pharmacist if you take warfarin or any blood thinners — chlorella can reduce their effectiveness. Also flag any photosensitizing drugs (medications that increase sun sensitivity).

Altogether, these interactions span 336 individual medications.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Chlorella may help with iron deficiency in pregnancy if your doctor recommends it. If you take warfarin or any photosensitizing medication, check with your pharmacist first.

Because quality varies and safety data are limited, only take this product under your doctor's direction.

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 May 22, 2020.

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 Clean Chlorella, straight from the product label.

Brand Health Ranger Select
Barcode (UPC) 050742581305
Net contents 80 Gram(s); 2.8 Ounce(s)
Market status On market
Date entered into DSLD May 22, 2020
DSLD ID 221679
Product type Non-nutrient/non-botanical
Supplement form Tablet Or Pill
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years)
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 Clean Chlorella by Health Ranger Select, 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:
10 Tablet(s)
Maximum serving Sizes:
10 Tablet(s)
Servings per container
40
UPC/BARCODE
050742581305
IngredientAmount% DV
Calories8 Calorie(s)--
clean Chlorella2 Gram(s)--

Other ingredients: 100% Chlorella

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.
Formula

Clean Chlorella is the cleanest, most pure source of chlorella on the planet.

Formulation

It is virtually 100% free of the metals found in most other sources of chlorella because it is grown indoors, under laboratory conditions.

Thus, it avoids exposure to chemtrails (aluminum), coal-fired power plants (mercury) and other airborne pollutants.

Non GMO

Vegan

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Precautions

If pregnant or under a doctor's care, consult your physician before using this product.

Do not use if the safety seal is broken.

Keep out of reach of children.

Manufactured in a facility which may contain nuts (peanuts, tree nuts).

General Statements

Personally selected & recommended by Mike Adams, The Health Ranger

Seals/Symbols

Laboratory Verified

Glyphosate Tested

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Clean Chlorella by Health Ranger Select label

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

Clean Chlorella label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Clean Chlorella by Health Ranger Select

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

Serving size10 Tablet(s) Dosage formTablet Or Pill Servings per container40 Amounts shown are per serving.

Clean Chlorella

Interacts with
337 drugs
2 Gram(s) per serving Form: Green Algae

Chlorella is a nutrient-rich freshwater green algae taken as a supplement for general wellness, immune support, and 'detox.' Some small studies sugges...

Clean Chlorella monograph & interactions

Other (inactive) ingredients: 100% Chlorella. These complete the product’s ingredient list but are not active constituents.

Interaction report

Clean Chlorella by Health Ranger Select Drug Interactions

Want to check YOUR meds against Clean Chlorella?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
337Drugs
337 Moderate

Ingredients driving the most interactions

clean Chlorella 337

Individual Drug Interactions

The ingredients in Clean Chlorella interact with 337 drugs. Click any drug to see the details.

1 of the 1 ingredient in Clean Chlorella interact with drugs. Each result below shows which ingredient is responsible. clean Chlorella

Each ingredient & the kinds of drugs it affects

For each ingredient in Clean Chlorella with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

clean Chlorella2 drug types · 337 drugs

Photosensitizing Drugs

Theoretically, chlorella might have additive effects with photosensitizing drugs.
Chlorella has been reported to cause photosensitization. In five case reports, patients who had ingested chlorella exhibited swelling followed by erythematopurpuric lesions on sun-exposed areas of the body. Theoretically, concomitant use with photosensitizing drugs may exacerbate effects.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, chlorella might reduce the clinical effects of warfarin.
Chlorella contains significant amounts of vitamin K. There is at least one case report of warfarin therapy becoming sub-therapeutic after initiation of chlorella supplements.

Likelihood Possible Evidence D
clean Chlorella full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Clean Chlorella, from the product label.

Health Ranger Select

See all Health Ranger Select products
Name
Health Ranger Store
Street Address
3820 Central Ave. #109
City
Cheyenne
State
WY
ZipCode
82001
Phone Number
1-888-959-6415
Web Address
healthrangerstore.com
Pharmacist Counseling Corner

Clean Chlorella by Health Ranger Select: Common Questions

Does Clean Chlorella by Health Ranger Select interact with any medications?
Yes. Based on its ingredients, Clean Chlorella has a known interaction with 337 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Clean Chlorella 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 is chlorella?
Chlorella is a single-celled freshwater algae that's sold as a dietary supplement. It's been studied for a few health conditions, though the evidence is still being built out.
Can I take this if I'm pregnant?
Chlorella is possibly effective for iron deficiency during pregnancy, but there isn't enough overall safety data. Talk with your doctor before starting it — they can help you decide if it's right for your situation.
What side effects should I expect?
The most common ones are stomach cramping, diarrhea or constipation, gas, nausea, and sensitivity to sunlight, especially in the first two weeks. Allergic reactions, including serious ones, are rare but possible.
Why does chlorella sometimes make stool green?
That's the chlorella itself — a harmless green discoloration. It's not a sign anything's wrong.
Does chlorella quality matter?
Yes. Product purity and quality vary widely from brand to brand, so it's worth paying attention to where you buy it from.

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

Not sure if Clean Chlorella 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.

Clean Chlorella label
Go deeper

The Full Monographs Behind Clean Chlorella’s Ingredients

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

Herb & supplement monograph

Chlorella

Interacts with 337 drugs

Chlorella is a nutrient-rich freshwater green algae taken as a supplement for general wellness, immune support, and 'detox.' Some small studies suggest possible benefits for cholesterol, blo...

Read the full Chlorella monograph →
Sources

Sources & How We Checked

Clean Chlorella'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 13 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.

Chlorella 13 references
  1. Peirce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York, NY: William Morrow and Co., 1999.
  2. Ng TP, Tan WC, Lee YK. Occupational asthma in a pharmacist induced by chlorella, a unicellular algae preparation. Resp Med 1994;88:555-7. PubMed
  3. Jitsukawa K, Suizu R, Hidano A. Chlorella photosensitization. New phytophotodermatosis. Int J Dermatol 1984;23:263-8. PubMed
  4. Merchant RE, Carmack CA, Wise CM. Nutritional supplementation with Chlorella pyrenoidosa for patients with fibromyalgia syndrome: a pilot study. Phytother Res 2000;14:167-73.
  5. Merchant RE, Rice CD, Young HF. Dietary Chlorella pyrenoidosa for patients with malignant glioma: effects on immunocompetence, quality of life, and survival. Phytother Res 1990;4:220-31.
  6. Halperin SA, Smith B, Nolan C, et al. Safety and immunoenhancing effect of a Chlorella-derived dietary supplement in healthy adults undergoing influenza vaccination: randomized, double-blind, placebo-controlled trial. CMAJ 2003;169:111-7..
  7. Ohtake, T., Negishi, K., Okamoto, K., Oka, M., Maesato, K., Moriya, H., and Kobayashi, S. Manganese-induced Parkinsonism in a patient undergoing maintenance hemodialysis. Am J Kidney Dis 2005;46(4):749-753. PubMed
  8. Ng, T. P., Tan, W. C., and Lee, Y. K. Occupational asthma in a pharmacist induced by Chlorella, a unicellular algae preparation. Respir.Med. 1994;88(7):555-557. PubMed
  9. Ohkawa, S., Yoneda, Y., Ohsumi, Y., and Tabuchi, M. [Warfarin therapy and chlorella]. Rinsho Shinkeigaku 1995;35(7):806-807.
  10. Azocar J, Diaz A. Efficacy and safety of chlorella supplementation in adults with chronic hepatitis C virus infection. World J Gastroenterol 2013;19(7):1085-90. PubMed
  11. Panahi Y, Badeli R, Karami GR, Badeli Z, Sahebkar A. A randomized controlled trial of 6-week Chlorella vulgaris supplementation in patients with major depressive disorder. Complement Ther Med 2015;23(4):598-602. PubMed
  12. Nakano S, Takekoshi H, Nakano M. Chlorella pyrenoidosa supplementation reduces the risk of anemia, proteinuria and edema in pregnant women. Plant Foods Hum Nutr 2010;65(1):25-30. PubMed
  13. Yavasoglu I, Turgutkaya A, Bolaman Z. Chlorella-induced thrombocytopenia. Sao Paulo Med J 2018;136(6):602-3. PubMed

See these in context on the Chlorella 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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