Chlorophyll is the green pigment that powers photosynthesis in every plant on earth. In liquid form — often as chlorophyllin, a water-soluble derivative — it has become one of the most discussed natural supplements for internal cleansing, body odour reduction, gut support, and cellular protection. And increasingly, the science is backing up the hype.

What Is Liquid Chlorophyll?

Chlorophyll (from the Greek khloros, meaning "pale green," and phyllon, meaning "leaf") is the molecule responsible for capturing sunlight and converting it to plant energy. Structurally, it bears a remarkable similarity to human haemoglobin — both are built around a porphyrin ring — with one critical difference: haemoglobin carries an iron atom at its core, while chlorophyll carries magnesium.¹

Liquid chlorophyll supplements are typically derived from alfalfa, wheatgrass, or mulberry leaves, and are most commonly sold as chlorophyllin — a semi-synthetic, water-soluble form that is better absorbed and more shelf-stable than natural chlorophyll extracted directly from plant matter.

Body Odour & Internal Deodorant Effect

Perhaps the most well-known and clinically substantiated benefit of liquid chlorophyll is its remarkable ability to act as an internal deodorant — neutralising body odour from the inside out rather than masking it on the surface.

Body odour originates from several internal sources: bacterial metabolism of sweat compounds, digestive byproducts (including sulphur-containing gases), and in some individuals, a genetic condition called trimethylaminuria (TMAU) — also known as "fish odour syndrome" — in which the body cannot properly metabolise trimethylamine (TMA), a compound with a pungent fishy smell that is then excreted via sweat, urine, and breath.

Chlorophyll works as an internal deodorant through three primary mechanisms: it binds to and neutralises odour-causing molecules in the digestive tract before they are absorbed; it inhibits the bacterial activity that breaks down proteins into malodorous compounds; and it supports liver function in metabolising and eliminating waste compounds more efficiently.

• Neutralises trimethylamine (TMA) — the compound responsible for fish-like body odour
• Inhibits bacterial odour production in the colon and small intestine
• Reduces faecal and urinary odour — particularly in nursing home residents (see Westfall 1953)
• Helps control bad breath (halitosis) by eliminating sulphur compounds in the gut
• Supports liver clearance of metabolic waste that contributes to body odour

Detoxification & Toxin Binding

One of the most significant areas of chlorophyll research concerns its ability to bind to environmental toxins, carcinogens, and heavy metals in the digestive tract, preventing their absorption into the bloodstream. This process — called molecular complexation — means chlorophyll can intercept harmful compounds before they cause systemic damage.

Beyond aflatoxin, research has identified that chlorophyll can form tight molecular complexes with a wide range of environmental toxins — including polycyclic aromatic hydrocarbons (PAHs) found in grilled and smoked foods, heterocyclic amines from high-temperature cooking, and industrial heavy metals including cadmium, mercury, and lead.

This makes liquid chlorophyll particularly relevant for anyone with exposure to environmental pollutants, occupational chemicals, processed foods, alcohol, or tobacco — all of which generate toxin loads that the liver must process and eliminate.

• Binds aflatoxins, reducing their absorption by up to 55% in clinical trials
• Chelates heavy metals including lead, cadmium, and mercury in the gut
• Inhibits absorption of polycyclic aromatic hydrocarbons (PAHs) from food
• Supports Phase II liver detoxification enzyme activity
• Reduces oxidative damage from alcohol and environmental exposures

Gut & Digestive Health

The gut is both where chlorophyll does much of its work — binding, neutralising, and escorting toxins to elimination — and where it delivers its own direct healing effects on digestive tissue. Research consistently points to chlorophyll's ability to reduce intestinal inflammation, support the gut microbiome, and promote the integrity of the intestinal lining.

Chlorophyll has been shown to modulate the composition of gut bacteria, reducing populations of pro-inflammatory species while supporting beneficial commensal organisms. Its anti-inflammatory activity in gut tissue may be particularly relevant for people managing irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), bloating, constipation, or general digestive discomfort.

Blood Building & Oxygen Support

The structural similarity between chlorophyll and haemoglobin has long fascinated researchers. Both molecules share the same core porphyrin ring structure — the only difference is the central metal atom: magnesium in chlorophyll; iron in haemoglobin. This similarity has led to decades of research into chlorophyll's potential to support red blood cell production and oxygen transport.

While chlorophyll cannot directly convert to haemoglobin, emerging evidence suggests it may support haematopoiesis (blood cell formation) by providing magnesium and other micronutrients essential to the process, and by stimulating stem cell activity in bone marrow. Chlorophyll has shown particular promise in thalassaemia patients, where it may reduce transfusion requirements.

Antioxidant & Anti-Inflammatory Protection

Oxidative stress — the accumulation of reactive oxygen species (ROS) that damage cells, proteins, and DNA — underlies virtually every chronic disease, from cardiovascular disease and diabetes to neurodegeneration and cancer. Chlorophyll is a potent free-radical scavenger and has been shown in multiple studies to reduce markers of oxidative damage throughout the body.

Chlorophyll's antioxidant activity is mediated by its porphyrin structure and the presence of phytol side chains, which are capable of neutralising singlet oxygen and peroxyl radicals — among the most reactive and damaging forms of ROS. Additionally, chlorophyll has been shown to upregulate the body's own antioxidant defence enzymes, including superoxide dismutase (SOD), catalase, and glutathione peroxidase.⁸

Skin Health & Wound Healing

Topical and oral chlorophyll applications have both demonstrated significant benefits for skin health. Chlorophyllin has been used medicinally for wound healing since the 1940s, when it was incorporated into dressings to accelerate healing and reduce infection risk. More recent research has expanded these findings to include acne, photoageing, and inflammatory skin conditions.

Beyond acne, a pilot study published in the Journal of Clinical and Aesthetic Dermatology found that oral chlorophyllin supplementation combined with topical application produced measurable improvements in sun-damaged skin, including reductions in fine lines, enlarged pores, and uneven pigmentation — with 75% of participants showing improvement at the study endpoint.

Cancer-Protective Properties

The body of research on chlorophyll and cancer prevention is among the most compelling in natural compound research. Chlorophyll's anti-carcinogenic activity operates through multiple mechanisms: direct binding and neutralisation of dietary carcinogens, induction of apoptosis (programmed cell death) in tumour cells, inhibition of tumour angiogenesis, and upregulation of detoxification enzymes that eliminate potential cancer-causing compounds.

Weight Management & Metabolism

Emerging research has pointed to a potential role for chlorophyll-rich preparations in supporting healthy weight and metabolic function. A double-blind, randomised study from Lund University in Sweden found that participants who consumed a breakfast drink containing thylakoids (chloroplast membranes rich in chlorophyll) reported significantly reduced hunger and cravings throughout the day — and lost more weight over the 12-week study period than the control group.¹²

The mechanism appears to relate to chlorophyll's ability to slow the digestion of dietary fat, prolonging the release of gut hormones such as GLP-1 and CCK that signal satiety — essentially telling the brain you're full for longer. This has implications not just for weight loss but for blood sugar regulation and insulin sensitivity.

How to Take Liquid Chlorophyll

Liquid chlorophyll is typically taken by adding 1–2 teaspoons (approximately 100–200mg of chlorophyllin) to a glass of water or juice, once or twice daily. It imparts a mild, pleasant green colour to the water and has a light, fresh taste that most people find palatable.

• Start with 1 teaspoon (5mL) per day and increase gradually over 1–2 weeks
• Mix into water, coconut water, juice, or a smoothie — it blends easily
• Take in the morning on an empty stomach for best absorption
• Consistency is key — most benefits are seen after 2–4 weeks of daily use
• Store in a cool, dark place; refrigerate after opening
• Look for supplements derived from alfalfa, mulberry, or wheatgrass with sodium copper chlorophyllin listed as the active ingredient

For targeted body odour support, some practitioners recommend taking a dose with each meal for the first two weeks, then reducing to a morning maintenance dose. For digestive and detox benefits, morning use is generally recommended.

Side Effects & Safety Considerations

Liquid chlorophyll is generally considered very safe for most adults when used as directed. The U.S. Food and Drug Administration (FDA) classifies chlorophyllin as Generally Recognised as Safe (GRAS). Side effects, when they occur, are typically mild and transient:

• Green discolouration of urine or stools (harmless; indicates active absorption)
• Mild digestive discomfort or loose stools when first starting (usually resolves within 1 week)
• Possible photosensitivity with very high doses in sensitive individuals
• Avoid during pregnancy and breastfeeding unless directed by a healthcare provider
• May interact with photosensitising medications — consult your GP if relevant

Summary: Key Health Benefits of Liquid Chlorophyll