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Dietary supplement

Perfect Chlorella Ingredients & Drug Interactions

by Perfect Supplements

Perfect Chlorella label
See full label image
Powder Category: 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 Perfect 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

Perfect Chlorella is a dietary supplement by Perfect Supplements 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 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 Perfect Chlorella by Perfect Supplements

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

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Perfect Chlorella by Perfect Supplements

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 Sep 3, 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.

Perfect Chlorella contains one active ingredient: organic chlorella, a freshwater green algae. The product comes as a powder with no other inactive ingredients listed.

Chlorella has been studied for a range of uses, though the evidence for most of them isn't solid yet. It does contain nutrients including protein, vitamins, and minerals, which is why it's used as a nutritional supplement.

Does it work?

Not established
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 established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use — see Chlorella's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: digestion and immune support.
  • We looked for evidence on: Exercise-induced respiratory infections, Ulcerative colitis, Gut health, Intestinal function, Infection prevention.
  • The closest evidence on file: Chlorella is rated "Insufficient Reliable Evidence To Rate" for Exercise-induced respiratory infections (Natural Medicines).
  • Also on file: Chlorella is rated "Insufficient Reliable Evidence To Rate" for Ulcerative colitis.

The evidence on chlorella is mixed and limited. It's possibly effective for pregnancy-related iron deficiency — the strongest claim in the data we hold.

For brain tumors, nonalcoholic fatty liver disease, depression, and fatigue, there isn't enough reliable evidence to say whether it works. Talk with your doctor about whether it's right for what you're hoping to address.

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 — that's something to keep in mind when you're choosing a brand. The most common side effects are allergic reactions, abdominal cramping, constipation, diarrhea, fatigue, gas, nausea, photosensitivity (sun sensitivity), and darkened stool.

These are usually mild and often happen in the first two weeks. Rarely, anaphylaxis (a severe allergic reaction) has been reported.

There isn't enough safety data to know whether chlorella is safe long-term or in all situations. Don't take it unless your doctor approves, especially if you have any health conditions or are pregnant or breastfeeding.

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 taking Perfect Chlorella, double-check with your doctor or pharmacist if you take warfarin (Coumadin) or any other blood thinners — chlorella's vitamin K content can reduce their effectiveness. Also flag any medications that make your skin sensitive to sun exposure (photosensitizing drugs), since chlorella may 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 no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

Perfect Chlorella might be worth considering if you're looking to address pregnancy-related iron deficiency and your doctor thinks it's appropriate. If you take warfarin or any photosensitizing medications, you need to check with your doctor or pharmacist before starting — chlorella can interfere with both.

Because long-term safety data is limited, talk it over with your healthcare provider to make sure 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 Jun 24, 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 Perfect Chlorella, straight from the product label.

Brand Perfect Supplements
Barcode (UPC) 094922066251
Net contents 180 Gram(s)
Market status On market
Date entered into DSLD Jun 24, 2020
DSLD ID 229399
Product type Botanical
Supplement form Powder
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Organic, 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 Perfect Chlorella by Perfect Supplements, 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:
1.5 Gram(s)
Maximum serving Sizes:
9 Gram(s)
Servings per container
60
UPC/BARCODE
094922066251
IngredientAmount% DV
organic Chlorella3000 mg--

Other ingredients: None

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

Perfect Chlorella is 100% Pure Organic Broken-Cell Wall Chlorella, a fresh water single-celled algae. Truly a super food, Chlorella is an excellent source of vegetarian protein, as well as, numerous vitamins, minerals, antioxidants, amino acids, and chlorophyll.

Made with Organic fairly traded Chlorella Broken-cell wall Whole food micro-algae powder

Perfectly Paleo

Formulation

Highly recommended for digestion and immune support.

Vegan

Non-GMO

Gluten free

This product has been certified organic by Organic Certifiers, Inc. under NOP Final Rule 7, CFR Part 205. www.organiccertifiers.com

Precautions

This product is manufactured in a facility that processes milk, egg, soy, tree nuts, fish, and shellfish.

Warning: Keep out of reach of children.

Consult your physician prior to using if you are pregnant or nursing.

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.

General Statements

Farily traded

Seals/Symbols

USDA Organic

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Suggested use: Start with 1/2 scoop per day, and increase up to 1-3 scoops (3-9 g).

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

See for yourself

Perfect Chlorella by Perfect Supplements label

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

Perfect 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 Perfect Chlorella by Perfect Supplements

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

Serving size1.5 Gram(s) Dosage formPowder Servings per container60 Amounts shown are per serving.

Organic Chlorella

Interacts with
337 drugs
3000 mg per serving

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

Organic Chlorella monograph & interactions

Other (inactive) ingredients: None. These complete the product’s ingredient list but are not active constituents.

Interaction report

Perfect Chlorella by Perfect Supplements Drug Interactions

Want to check YOUR meds against Perfect 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

organic Chlorella 337

Individual Drug Interactions

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

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

Each ingredient & the kinds of drugs it affects

For each ingredient in Perfect 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.

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
organic Chlorella full monograph & interactions
The maker

Brand information

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

Perfect Supplements

See all Perfect Supplements products
Name
Perfect Supplements, LLC
Street Address
PO Box 60070
City
Florence
State
MA
ZipCode
01062
Phone Number
1-866-802-3860
Web Address
www.perfectsupplements.com
Pharmacist Counseling Corner

Perfect Chlorella by Perfect Supplements: Common Questions

Does Perfect Chlorella by Perfect Supplements interact with any medications?
Yes. Based on its ingredients, Perfect 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?
Perfect 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.
Is chlorella safe during pregnancy?
The data we hold rates chlorella as possibly safe in pregnancy, but there isn't much safety information available. Talk with your doctor before taking it — they can weigh the evidence for your specific situation and decide whether it's right for you.
What are the most common side effects?
Most people experience mild digestive issues like cramping, gas, nausea, or diarrhea, especially in the first two weeks. Some also report fatigue, allergic reactions, sun sensitivity, and darkened stool. These usually go away on their own.
Can I take this if I'm on a blood thinner?
Not without checking first. Chlorella is high in vitamin K, which can make warfarin and other blood thinners less effective — we even have a case report of someone's warfarin therapy failing after starting chlorella. Check with your doctor or pharmacist before you take it.
Why does the product quality vary so much?
Chlorella supplements aren't regulated as tightly as drugs, so purity and contamination levels differ between brands. It's worth researching the manufacturer's quality standards before you buy.
Does chlorella actually work for fatigue or depression?
The evidence isn't established yet. We don't hold reliable data showing it helps with either condition, so we can't say one way or the other. If you're considering it for these reasons, talk with your doctor first.
Will this interact with my other supplements?
The data we hold focuses on prescription and over-the-counter drugs. If you're taking other supplements and want to add chlorella, run that combination past your doctor or pharmacist to be sure.

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

Not sure if Perfect Chlorella 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.

Perfect Chlorella label
Go deeper

The Full Monographs Behind Perfect 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

Perfect 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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