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Dietary supplement

Organic Clean Chlorella SL Ingredients & Drug Interactions

by Health Ranger Select

Organic Clean Chlorella SL 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 Organic Clean Chlorella SL 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

Organic Clean Chlorella SL 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 certified organic Chlorella. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Organic Clean Chlorella SL by Health Ranger Select

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

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HelloPharmacist Scorecard of Organic Clean Chlorella SL 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 Aug 27, 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 a single active ingredient: certified organic chlorella, a freshwater algae. Chlorella is sometimes used as a nutritional supplement, though the evidence for most claimed benefits is limited or not yet established in the data we hold.

Does it work?

Moderate evidence
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

This product doesn't appear to be marketed for a specific use, so we graded Chlorella's overall clinical evidence instead.

Moderate

Some clinical evidence supports Chlorella for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredient's overall clinical evidence instead.
  • On file: Pregnancy-related iron deficiency — rated "Possibly Effective" (Natural Medicines).

The facts show chlorella is possibly effective for pregnancy-related iron deficiency. For brain tumor, nonalcoholic fatty liver disease (NAFLD), depression, and fatigue, the evidence isn't established enough to rate it one way or the other — we simply don't have reliable data yet.

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 short term, but product quality and purity vary widely across brands, so choose carefully. The most common side effects are allergic reactions, abdominal cramping, constipation, diarrhea, nausea, gas, fatigue, and photosensitivity — many of these are mild and transient, especially during the first two weeks.

Rare but serious reactions include anaphylaxis. The safety data for long-term use isn't established, so it's wise to avoid it unless your doctor approves.

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.

Check with your doctor or pharmacist before taking this product if you're on warfarin or any other blood thinner — chlorella's vitamin K content may reduce how well it works. Also flag any medications that make your skin more sun-sensitive, since chlorella can add to that effect.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.

Chlorella might be worth considering if you're pregnant and have iron deficiency, but the evidence for other uses isn't solid yet. If you take warfarin or any photosensitizing medication, you need to check with your doctor or pharmacist before starting — chlorella can interfere with how these work.

Talk it over with your own healthcare provider to see whether it's right for you.

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 Organic Clean Chlorella SL, straight from the product label.

Brand Health Ranger Select
Barcode (UPC) 050742581312
Net contents 2.8 Ounce(s); 80 Gram(s)
Market status On market
Date entered into DSLD May 22, 2020
DSLD ID 221685
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), Organic
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 Organic Clean Chlorella SL 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
050742581312
IngredientAmount% DV
Calories14 Calorie(s)--
certified organic Chlorella2 Gram(s)--

Other ingredients: organic 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

Organic Clean Chlorella SL is the cleanest source of sunlight-grown chlorella on the planet. Fed with mountain spring water, its digestibility is enhanced with a patented cell wall opening process.

Formulation

Certified organic in the USA and by European standards.

Certified organic by Natural Food Certifiers, Inc.

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 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

200 mg tablets

China Free

Seals/Symbols

USDA Organic GMO Guard Natural Food Certifiers Natural Food Certifiers

Laboratory Verified

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

See for yourself

Organic Clean Chlorella SL by Health Ranger Select label

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

Organic Clean Chlorella SL 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 Organic Clean Chlorella SL 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.

Certified organic 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...

Certified organic Chlorella monograph & interactions

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

Interaction report

Organic Clean Chlorella SL by Health Ranger Select Drug Interactions

Want to check YOUR meds against Organic Clean Chlorella SL?

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

certified organic Chlorella 337

Individual Drug Interactions

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

1 of the 1 ingredient in Organic Clean Chlorella SL interact with drugs. Each result below shows which ingredient is responsible. certified organic Chlorella

Each ingredient & the kinds of drugs it affects

For each ingredient in Organic Clean Chlorella SL 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.

certified organic 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
certified organic Chlorella full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Organic Clean Chlorella SL, 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

Organic Clean Chlorella SL by Health Ranger Select: Common Questions

Does Organic Clean Chlorella SL by Health Ranger Select interact with any medications?
Yes. Based on its ingredients, Organic Clean Chlorella SL 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?
Organic Clean Chlorella SL 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.
Does chlorella have any serious side effects?
Serious reactions are rare, but anaphylaxis (a severe allergic reaction) has been reported. Much more commonly, you might experience nausea, diarrhea, cramping, gas, or a mild rash on sun-exposed skin, especially in the first two weeks. If you have a shellfish or seaweed allergy, tell your doctor before trying it.
Can I take chlorella while pregnant?
The data rates chlorella as possibly safe during pregnancy, but the safety information isn't complete. Talk with your doctor or midwife before taking it — they can weigh the possible benefits against what we don't yet know.
What is chlorella, and why would I take it?
Chlorella is a freshwater algae used as a nutritional supplement. Some people take it for general wellness or energy, but the evidence for most of these uses isn't established. It is possibly effective for pregnancy-related iron deficiency, which is one of the more researched claims.
Does product quality matter with chlorella?
Yes — quality and purity vary widely across brands and batches. This matters because you want to know exactly what you're getting, especially if you have allergies or take medications that interact with it. Choose a reputable brand and talk with your pharmacist if you're unsure.
Can chlorella make me more sun-sensitive?
Yes. Chlorella has been reported to cause photosensitization — a reaction that makes your skin more sensitive to sun exposure, showing up as swelling or red or purple rashes on exposed areas. If you're already on a medication that has this side effect, taking chlorella could make it worse.
Can I take chlorella if I'm on warfarin?
You should not take this product without checking with your doctor first. Chlorella is high in vitamin K, which can weaken warfarin's blood-thinning effect — there's at least one case report of this actually happening. Your doctor may need to adjust your dose or recommend a different supplement.

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

Not sure if Organic Clean Chlorella SL is safe with your meds?

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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.

Organic Clean Chlorella SL label
Go deeper

The Full Monographs Behind Organic Clean Chlorella SL’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

Organic Clean Chlorella SL'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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