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Chlorophyll / Chlorophyllin
The green pigment of plants, sold (usually as the semi-synthetic, water-soluble salt 'chlorophyllin') for skin, body odor, and 'detox.' Unlike most trendy supplements it has a genuine, well-conducted human trial — but for an unusual endpoint: it reduced an aflatoxin-DNA biomarker in a high-liver-cancer-risk population. The popular skin/odor claims rest on small pilot and case studies. Evidence overall is thin and mostly topical.
What the evidence says
Most Chlorophyll studies are mechanism or observational rather than RCTs that measure a clinical effect — keep findings provisional.
Most evidence is from high-quality randomised trials published 1983–2026 with a typical study size of 10 participants.
Based on 16 studies · 8 RCTs · 20 total participants
Confidence
Moderate confidenceBy outcome
Just one rigorous RCT exists, and it addresses an unusual endpoint (aflatoxin-DNA biomarker in a high-cancer-risk population); the popular skin and detox claims rest only on small topical pilots and case studies.
6 trials ongoing or recruiting · 13 completed on ClinicalTrials.gov
Registered trials show research momentum for Chlorophyll, not proof of effect — a registration is a plan, and posted results are sponsor-reported, not peer-reviewed. They are never counted toward the evidence rating above.
Browse these trials on ClinicalTrials.govClinicalTrials.gov · as of Sep 2026
Under EU law (Reg. 1924/2006), EFSA reviews whether a specific health claim for Chlorophyll meets the evidence standard. These are independent regulatory decisions on claims — not studies, and never counted toward the evidence score above.
Not authorised by EFSA
“Chlorophyll in sprouted seed Contains chlorophyll, a natural anti-oxidant giving enhanced defence against free radicals”
“Not authorised” means the specific claim wording did not meet the EU’s evidence standard — often a matter of dossier or phrasing, not proof of no effect. EFSA judges marketing claims and is kept separate from our study-based evidence score.
Source: EU Register of nutrition and health claims (European Commission / EFSA) · register snapshot Feb 2013
Chlorophyll is the pigment that makes plants green. Most supplements actually contain chlorophyllin — specifically sodium copper chlorophyllin complex — a semi-synthetic, water-soluble derivative used for decades as a food colorant and over-the-counter deodorizing agent.
It is marketed today for clearer skin, reduced body odor, 'internal detoxification,' and energy. The honest picture is mixed.
There is one genuinely rigorous piece of human evidence: a randomized, double-blind, placebo-controlled trial in Qidong, China (Egner, Kensler et al., 2001) showed that 100 mg of chlorophyllin three times daily cut a urinary aflatoxin-DNA adduct biomarker by ~55% in people at high risk for liver cancer — by binding the carcinogen in the gut and blocking its absorption.
That is a real, mechanistically clean result, but it speaks to carcinogen sequestration in a specific high-exposure population, not to the 'detox,' skin, or odor benefits the supplement is sold for.
Those popular claims rest on small single-center pilot and case studies of TOPICAL copper chlorophyllin gels for acne, pore size, rosacea redness, and photoaging — promising but low-quality, often industry-run, and not about oral 'liquid chlorophyll.' Net: a low-evidence supplement with one notable trial that is frequently misrepresented.
Chlorophyllin forms tight complexes with planar carcinogens like aflatoxin B1, reducing their bioavailability and absorption — the basis of the aflatoxin-biomarker trial.
Copper chlorophyllin has antioxidant, anti-inflammatory and antibacterial activity in vitro — cited as the rationale for topical skin products.
Long used as an OTC internal deodorant; the underlying evidence is old and limited.
How Chlorophyll works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.
Not adequately studied — avoid supplemental use.
Use sun protection; chlorophyll derivatives can be photosensitizing.
Tip: Harmless; no action needed
Tip: Take with food, lower dose
Tip: Patch test; discontinue if irritation occurs
The current evidence for Chlorophyll is insufficient to assign an evidence score, based on 16 indexed studies. The green pigment of plants, sold (usually as the semi-synthetic, water-soluble salt 'chlorophyllin') for skin, body odor, and 'detox.' Unlike most trendy supplements it has a genuine, well-conducted human trial — but for an unusual endpoint: it reduced an aflatoxin-DNA biomarker in a high-liver-cancer-risk population. The popular skin/odor claims rest on small pilot and case studies. Evidence overall is thin and mostly topical. Representative study: PMID 11724948.
The commonly studied dose of Chlorophyll is Oral chlorophyllin commonly 100-300mg/day (the aflatoxin RCT used 100mg three times daily); topical products are formulated gels — there is no validated oral dose for skin or 'detox'. Individual needs vary — start at the lower end of the range and adjust based on how you respond.
The best time to take Chlorophyll is with meals. Take it with food. The carcinogen-binding mechanism depends on chlorophyllin being present in the gut with food/contaminants; the trial dosed it at each meal.
Chlorophyll is generally safe at recommended doses, with a few precautions worth noting. The most commonly reported side effects are green discoloration of stool/urine/tongue, mild GI upset / diarrhea, skin irritation (topical use). Use caution if any of these apply to you: Pregnancy/breastfeeding (not adequately studied).
Alpha Lipoic Acid
Likely helpsUniversal antioxidant that works in both water and fat, supporting blood sugar control, nerve health, and cellular energy.
Collagen
Likely helpsHydrolyzed peptides that rebuild skin elasticity, reduce joint pain, and strengthen bone density — results build over 8-12 weeks.
TUDCA
Likely helpsWater-soluble bile acid that protects the liver, supports bile flow, reduces ER stress, and aids digestion of fats.
Hyaluronic Acid
Mostly mechanism / observationalHolds 1,000x its weight in water. Most strong evidence is for injectable/intra-articular HA in knee osteoarthritis; oral supplementation shows small, inconsistent benefits for skin and joints.
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Reviewed by Dr. Baher Al Hakim · Last reviewed June 2026 · evidence from 16 studies · how we score · editorial policy
This information is for educational purposes only. It is not a substitute for professional medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement or medication.
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