This List is very conservative right now, it will keep growing as I do more and more research.
Acetaldehyde: Found in many nail care products. Known to cause cancers in humans and experimental animals.
Acetone : Also known as Dimethylketone, 2-Propanone, Beta-Ketopropane. Inhalation of moderate to high amounts, even for a short time results in entry of acetone into bloodstream where it is carried to all other organs. Nose, throat, lung and eye irritant, headaches, confusion, increased pulse rate, effects on blood, nausea, vomiting and unconsciousness, coma. Shortens the menstrual cycle in women. Effects of long-term exposure include kidney, liver and nerve damage, increased birth defects, metabolic changes and coma. Found in nail polish remover.
Acrylamide/polyacrylamide: Produced naturally in some foods when cooked at high temps. Manufactured for use in polyacrylamide gels, sometimes used as a treatment for drinking water and/or wastewater. Acrylamide causes cancer in animals and in large doses, nerve damage in humans. Smoking is a major acrylamide producer as is frying, deep frying or extended micro-waving.
Alkyl-phenol Ethoxylades: May reduce sperm count. Found in shampoo and bubble bath.
Alpha Hydroxy Acid: Destroys skin cells and leaves skin more susceptible to damage from the environment and skin cancer. Actually ends up aging skin. Found in anti-aging facial creams and lotions.
Aluminum: Heavy concentrations may be linked to Alzheimer’s dementia. Aluminum is in many antiperspirants and prevalent in water supplies. Processed foods contain dietary aluminum. Sodium aluminum phosphate appears in pickles, cheese and baking soda.
Ammonium Glycolate: A photosensitizer with potential to increase risk of sunburn and skin cancer by intensifying UV exposures in deep skin layers. This sensitizer can instigate immune system response that includes itching, burning, scaling, hives, and blistering of skin. It is also a penetration enhancer which alters the skins’ structure, allowing other chemicals to penetrate deeper into the skin, thus increasing the amounts of other chemicals that reach the bloodstream.
Ammonium Hydroxide: eye, lung and skin irritant; organ system toxicity
Ammonium Persulfate: Found in hair color and bleaching kit sensitizer – can instigate immune system response that can include itching, burning, scaling, hives, and blistering of skin, lung sensitizer – can instigate immune system response that can include asthma attacks or other problems with the lungs and airways. Immune system toxin, respiratory toxicant, skin or sense organ toxicant, classified as toxic in one or more government assessments.
Benzalkonium chloride, cetrimonium chloride and lauryl dimonium hydrolysed collagen: Found in hair treatment products. Both are toxic and allergenic.
Benzene: Inhalation of high levels can cause headaches, rapid heart rate, tremors, confusion, unconsciousness and death. Hodgkin’s and Lymphomas result from inhalation. Used in detergents, drugs, pesticides and adhesives.
Benzoic / Benzyl: Contains carcinogens, endocrine disruptor, may cause birth defects. Found in shower gels, shampoos, bubble bath.
Benzoic Acid: Inhalation affects nervous system and is moderately toxic by ingestion. Severe eye and skin irritant. Used as a food preservative and in pharmaceuticals and cosmetics
Benzoyl Peroxide: In acne treatments, bar soap, facial cleansers and food additives! Highly toxic/ irritant
Benzyl alcohol: skin, eye and lung irritant; prolonged or repeated exposure can cause allergic contact dermatitis; may be toxic to the liver and CNS
BHA (butylated hydroxyanisole) and BHT (butylated hydroxytoluene): In moisturizer, makeup, etc. Can cause cancer and interfere with hormone function. Harmful to fish and other wildlife. BHA and BHT can induce allergic reactions in the skin. The International Agency for Research on Cancer classifies BHA as a possible human carcinogen. The European Commission on Endocrine Disruption has also listed BHA as a Category 1 priority substance, based on evidence that it interferes with hormone function.
Bisphenol A or BPA: Toxic plastic chemical used as a can lining in brands of some infant formulas. Also found in water bottles, this chemical is used to produce polycarbonate and epoxy plastics. For babies, check food container labels and beware of polycarbonate plastic baby bottles. Chemical reactions can occur when plastic is heated.
Bronopol: May break down into formaldehyde, may form carcinogenic nitrosamines.
Butylparaben: Potential breast cancer risk and endocrine disruptor raising concern for impaired fertility or development, increased risk for certain cancers, itching burning and blistering of skin.
Carbon Black: organ system toxicity; possible human carcinogen
Carboxymethylcellulose: Causes cancer in animals. Used in cosmetics, inhalation could cause chemical pneumonitis.
Cetyl PEG/PPG-10: organ system toxicity
Coal Tar Dyes – (includes D&C Blue 1, Green 3, Yellow 5, Yellow 6, Red 33, etc.): Even though their carcinogenicity has recently been proven, the 1938 Act includes a specific exemption for them. Severe allergic reactions, asthma attacks, headaches, nausea, fatigue, lack of concentration, nervousness, increased risk of Hodgkin’s disease, non-Hodgkin’s lymphoma and multiple myeloma. Found in bubble bath, hair dye, dandruff shampoo, toothpaste and foods. For more information, see the Dyes Commonly Used in Food and Body Product Section.
Cocamidopropyl Betaine: May contain harmful impurities or form toxic breakdown products, itching, burning and blistering of skin. Synthesized from coconuts, this chemical is found in body products and may be labeled natural or organic.
Coumarin: Formerly the active ingredient in rat poison. A carcinogenic ingredient used in the manufacturing of deodorants, shampoos, skin fresheners and perfumes.
Cyclopentasiloxane: organ system toxicity
D&C Yellow 11: Found in: Lip gloss, polish remover, nail polish, bath oil/salts/soak, body spray, mositurizer, lipstick, styling gel/lotion, bar soap, after sun products,
DEA: Diethanolamine: A chemical used as a wetting or thickening agent in shampoos, soaps, hairsprays and sunscreens, blocks absorption of the nutrient choline, which is essential to brain development in a fetus. Repeated skin applications of DEA-based detergents resulted in a major increase in the incidence of liver and kidney cancer. Also found in skin cream, bubble bath, shaving gel, conditioner, lotions.
Diacetyl: An additive that tastes like butter causes a serious lung condition called bronchiolitis obliterans, or “popcorn workers’ lung. Found in foods, especially microwave popcorn.
Diazolidinyl Urea: Found in facial cleansers, shampoos and conditioners. Linked to neurotoxicity and immunotoxicity
Dibutyl phthalate (DBP): A chemical used to keep nail polish from chipping, has been connected to cancer in lab animals as well as long-term fertility issues in newborn boys. Banned in Europe, but still in use in the U.S. Found in nail polish.
Dimethicone: A silicone emollient, which coats the skin not allowing toxins out. May promote tumors and accumulate in the liver and lymph nodes. Found in lotions, creams, hair products, cosmetics.
Dioforms: Damage and weaken tooth enamel allowing more staining and discoloration to take place. Found in tooth whitening products.
Disodium EDTA: Harmful if swallowed or inhaled, causes irritation to skin, eyes and respiratory tract. Found in cosmetics.
DMDM Hydantoin: Contains formaldehyde , an ingredient linked to cancer, developmental and reproductive toxicity. Allergenic, can be an irritant to eyes skin and lungs. Common in manicure/pedicure products and hair treatment packages.
Elastin: Suffocates skin by not allowing moisture in or out. Found in facial creams and body lotions.
Ethoxylated surfactants and 1,4-dioxane: Never listed because it’s a by-product made from adding carcinogenic ethylene oxide to make other chemicals less harsh. The Environmental Working Group (EWG) has found 1,4-dioxane in 57 percent of baby washes in the U.S. Avoid any ingredients containing the letters “eth.”
Ethylacrylate: Found in some mascaras’s suspected as a cause of cancer in humans, based on studies of human populations or laboratory animals.
Ferric Ferrocyanide: depending on usage; organ system toxicity
Fluoride: May contain lead, mercury, cadmium and arsenic. Accumulates in body and contributes to bone disease. Carcinogenic. Found in toothpastes.
Formaldehyde: Suspected carcinogen and neurotoxin, it may be fatal if swallowed, absorbed through skin, inhaled or swallowed. Can cause spasms, edema, chemical pneumonitis and is extremely destructive to tissue of the mucous membrane, this chemical is found in many nail care products and vaccines. Known to cause cancers in humans and experimental animals. Found in baby shampoo, bubble bath, deodorants, perfume, cologne, hair dye, mouthwash, toothpaste, hair spray, nail polish. Look for DMDM hydantoin, diazolidinyl urea, imidazolidinyl urea,
Fragrances (Synthetic): Some perfumes/fragrances contain hundreds of chemicals. Some, such as methylene chloride are carcinogenic. Some cause brain damage or are neurotoxins. Avoid unless you can be sure they are not carcinogenic.
Glyceryl Rosinate: it’s the monoester of glycerin and mixed long chain acids derived from Rosin. Even though it may not be too harmful it may help the other harmful ingredients in your products get into your blood stream faster than you bargained for. It may also cause some irritation so just be aware what’s in your products.
Glycolic Acid: Penetration enhancer which alters skin structure, allowing other chemicals to penetrate deeper into the skin, increasing the amounts of other chemicals that reach the bloodstream, skin or sense organs. As a sensitizer it can instigate immune system response that can include itching, burning, scaling, hives, and blistering of skin. Toxicant, neurotoxin, kidney toxicant, gastrointestinal or liver toxicant. Found in creams, lotions, cosmetics.
GMO/Genetically Modified Organism: Plants, animals or foods that have been genetically modified, genetically engineered or BT/Biotechnology modified. Genetic engineering enables scientists to create plants, animals and micro-organisms by manipulating genes in a way that does not occur naturally. Minimal testing shows that animals fed GMO feed, refuse to eat it. When force-fed the feed (corn, soy, tomatoes etc.) the animals developed stomach lesions and malformations of organs. GMO food is not labeled as such in the U.S. Almost all other countries have banned the use of GMO in food and body products due to insufficient testing.
Heavy Metals (Lead, Mercury, Cadmium, Arsenic, Nickel and More): Heavy metals can build up in the body over time and are known to cause varied health problems, which can include: cancer, reproductive and developmental disorders, neurological problems; memory loss; mood swings; nerve, joint and muscle disorders; cardiovascular, skeletal, blood, immune system, kidney and renal problems; headaches; vomiting, nausea, and diarrhea; lung damage; contact dermatitis; and brittle hair and hair loss. Many are suspected hormone disruptors and respiratory toxins, and for some like lead, there is no known safe blood level. (See individual metals for more info)
Hydroabietyl Alcohol: Found in styling gel/lotions. Unsafe for use in cosmetics according to the fragrance industry’s International Fragrance Association.
Hydroquinone: A severely toxic and very powerful chemical. Banned in the United Kingdom, but still used in the U.S. Found in skin lightening products and hair dyes, this chemical alters the skins natural structure inhibiting the production of Melanin. Without natural protection, the skin is more susceptible to skin cancer. Prolonged use of Hydroquinone will thicken collagen fibers damaging the connective tissues. The result is rough blotchy skin leaving it with a spotty caviar appearance.
Hydroxymethylcellulose: Used in cosmetics. Inhalation could cause chemical pneumonitis.
Imidazolidinyl Urea: This allergenic chemical finds its way into deodorants, shampoos, hand cream and some mascaras.
Isobutane: eye, lung, skin irritant; organ system toxicity; allergen; restricted in Canadian cosmetics
Isobutylparaben: Potential breast cancer risk. Itching, burning and blistering of skin. Found in body products.
Isoproponal/Isopropyl Alcohol: Moderately toxic chemical causing flushing, pulse rate decrease, blood pressure lowering, anesthesia, narcosis, headache, dizziness, mental depression, drowsiness, hallucinations, distorted perceptions, respiratory depression, nausea, vomiting and coma. Used to clean/disinfect skin, lower temperatures. Found in some body products.
Japanese Honeysuckle: a natural source of Parabens but chemically identical to the synthetic variety. The build up of Parabens in the body and their interaction with other commonly used chemicals may lead to hormore disruption and can lead to an increased cancer risk
Kajoic Acid: A chemical that inhibits melanin production. Used in skin lightening products, it damages the skin and makes it more susceptible to cancer.
Lacquer: Can cause eyelashes to fall out. Found in mascara.
Lanolin: While lanolin itself is skin beneficial, it may contain carcinogenic pesticides such as DDT, lindane, dieldrin and other neurotoxins. Can cause rashes. Found in body products.
Lead: Known carcinogen found in lipstick and hair dye, but never listed because it’s a contaminant, not an ingredient.
Magnesium Stearate/Stearic Acid: May contain phosphatidyl choline which collapses cell membranes and selectively kills T-Cells which breaks down the immune system. An execeptant that is used to bind medicinal tablets and make them smooth it is also used in pharmaceuticals, foods, talcum powder, ammunition, and as a drying agent in paints.
MEA: Cocamide DEA, Lauramide DEA, Linoleamide DEA, Oleamide DEA: NDEA (N-nitrosodiethanolamine) forms when DEA reacts with nitrosating agents or the actual addition of nitrite as a preservative. As there is no way to determine if NDEA has been formed, it is imperative to avoid all products containing DEA as it is a known carcinogen. Often used in cosmetics to adjust the pH, and used with many fatty acids to convert acid to salt (stearate), which then becomes the base for a cleanser.
Mercury: Known allergen that impairs brain development. Found in mascara and some eyedrops.
Methyl Methacrylate: May cause fingers and nails to inflame. Found in nail polish.
Methylisothiazoline, or MIT: Causes neurological damage. Found in shampoo.
Methylparaben: Potential breast cancer risk and endocrine disruptor raising concern for impaired fertility or development of fetus, and increased risk for certain cancers, itching, burning and blistering of skin. A close cousin of benzoic acid: poisonous and moderately toxic it is found in body products.
Mineral Oil: A derivative of petroleum, this additive clogs pores, locks in toxins, suffocates and dries skin and inhibits your skins natural oil production further increasing dehydration. Causes testicular tumors in the fetus, deposits accumulate in the lymph nodes and prevent absorption of vitamin A from the intestines. Found in blush, baby oil, lotions, foundation and creams.
Nitrate – Nitrite: While nitrate itself is harmless; it is readily converted to nitrite. When nitrite combines with compounds called secondary amines, it forms nitrosamines: extremely powerful cancer-causing chemicals. The chemical reaction occurs most readily at the high temperatures of frying. Nitrite has long been suspected as being a cause of stomach cancer.
Nitrosamines: Extremely powerful, cancer-causing chemicals formed at high temperatures when the preservative nitrite combines with compounds called secondary amines.
Octinoxate: biochemical or cellular level changes; endocrine disruption; may be implicated in cardiovascular disease
Octyl methoxycinnamate: (OMC for short) is the main chemical used in sunscreens to filter out UVB light. OMC is present in almost ALL wide-spectrum sunscreen brands. Worse yet, OMC has been shown to be particularly toxic when exposed to sunshine. According to the Cosmetics Database, which rates Octyl Methoxycinnamate as 70% safe, there are many concerns regarding its use, including: biochemical changes that cause mutation and cell death upon exposure to sunlight (which is likely when used as a sunscreen ingredient); immunotoxicity and photoallergic effects; reproductive toxicity that leads to estrogenic effects; organ system toxicity, especially in the liver; and enhanced skin absorption. Octyl methoxycinnamate is relatively easily absorbed into the skin and has been shown in some studies to promote generation of potentially harmful free radicals.
Olestra: While fat-free, this additive has a fatal side effect: it attaches to valuable nutrients and flushes them out of the body. Some of these nutrients, called carotenoids, appear to protect us from such diseases as lung cancer, prostate cancer, heart disease, and macular degeneration. Olestra replaces fats in ‘fat-free’ foods.
Oxybenzone: Active ingredient in chemical sunscreens that accumulates in fatty tissues and is linked to allergies, hormone disruption, cellular damage, low birth weight.
p-Phenylenediamine (PPD): Very toxic substance, used in hair dyeing, shampoo’s and hair spray. Highly carcinogenic, developmental and reproductive toxicity, it is allergenic and can cause skin irritation issues.
Padimate-O (PABA): Nitrosamines, potent carcinogens, may form in products that contain Padimate-O. There is no way of knowing if they have formed. Found in cosmetics and sunscreens.
Parabens: Used as preservatives, found in many products. Linked to cancer, endocrine disruption, reproductive toxicity.
PEG (Polyethylene, polyethylene glycol, polyoxyethylene, oxynol: any ethoxylated compound, including SLES): Moderately toxic, eye irritant and possible carcinogen. Many glycols produce severe acidosis, central nervous system damage and congestion. Can cause convulsions, mutations, and surface EEG changes. Found in cosmetics, body products, foods, lotions. Penetration enhancer used in many products, it’s often contaminated with 1,4-dioxane and ethylene oxide, both known carcinogens.
PEG Stearates: Potentially contaminated with or breaking down into chemicals linked to cancer or other significant health problems. Found in cosmetics, creams and foods.
PEG-12 Distearate: May contain harmful impurities or form toxic breakdown products linked to cancer or other significant health problems. Found in creams, lotions, cosmetics and foods.
PEG-14M: May contain harmful impurities or form toxic breakdown products linked to cancer or other significant health problems. Found in foods, lotions, creams and cosmetics.
PEG-80 Sorbitan Laurate: May contain harmful impurities or form toxic breakdown products linked to cancer or other significant health problems, gastrointestinal or liver toxicity hazards. Found in cosmetics, creams, lotions and foods.
Petroleum (Petrolatum): Suffocates skin and traps toxins in body, clogs pores. Found in lotions, skin creams, and body jelly.
Phenoxyethanol: Possible connection to reproductive or developmental harm to fetus, potential for reduced fertility, classified as toxic and an irritant, potential risks to wildlife and environment through excretion of body product toxins and disposal of cosmetics.
Phthalates: Accumulates in the body; proven damage to liver, lungs, kidneys and reproductive systems. Appears in vinyl flooring, plastic wallpaper, perfume, hair spray, deodorant, nail polish, hair gel, mousse, body and hand lotion. Look for it in children’s toys, as; DEHP, BBP and DBP.
Placental extract: Used in some skin and hair products, but linked to endocrine disruption.
Polypropylene: Possible carcinogen. Found in lipstick, mascara, baby soap, eye shadow.
Polyquaternium-7: May contain harmful impurities or form toxic breakdown products linked to cancer or other significant health problems. Found in body products.
Polyscorbate-60: Used in cosmetics. Inhalation could cause chemical pneumonitis .
Polysorbate 20: Main concern is contaminants of ethylene oxide and 1,4-dioxane which are carcinogenic
Potassium Sorbate: skin toxicant or allergen
Propylene Glycol: Kidney damage, liver abnormalities, inhibits skin cell growth, damages cell membranes causing rashes, surface damage and dry skin. Absorbed into blood stream and travels to all organs. Many glycols produce severe acidosis, central nervous system damage and congestion. Can cause convulsions, mutations, and surface EEG changes. It is derived from petroleum products. The Material Safety Data Sheets on propylene glycol warns against contact with eyes, skin and clothing. It also says inhalation can cause irritation of nasal passages, ingestion can cause nausea, vomiting and diarrhea. Research also shows that it alters cell membranes and causes cardiac arrest. Found in shaving gel, lotions, shampoo, conditioners, foods, deodorant.
Propylparaben: Potential breast cancer risk and endocrine disruptor raising concern for impaired fertility or development, and increased risk for certain cancers, itching burning and blistering of skin, gastrointestinal or liver toxicity hazard. A close cousin of benzoic acid: poisonous and moderately toxic. Found in body products.
Quaternium-7, 15, 31, 60 etc.: Toxic, causes skin rashes and allergic reactions. Formaldehyde releasers. Found in body products.
Retinyl Palmitate: It’s a form of synthetic Vitamin A. The sunscreen industry uses vitamin A in its formulations because it is an anti-oxidant that is thought to slow skin aging. However, a U.S. Food and Drug Administration (FDA) study found that a form of vitamin A, retinyl palmitate, when used in sunscreen and therefore exposed to sunlight may actually speed the development of skin lesions and tumors.
Salicylic Acid: You need to be careful with this one as it can take a layer of skin off and can even cause a chemical burn. If you have sensitive skin definitely stay away from this ingredient. It can also irritate the eyes, skin and respiratory tract as well as cause effects on the central nervous system and the acid-base balance in the body , resulting in delirium and tremors. Prolonged use of salicylic acid can cause dermatitis.
Silicone-derived emollients: Look for ingredients ending in “-siloxane” or “-methicone.” Used to make a product feel soft, these don’t biodegrade, and also prevent skin from breathing. Linked to tumour growth and skin irritation. Suspected endocrine disrupter and reproductive toxicant (cyclotetrasiloxane). Harmful to fish and other wildlife.
SLES (Sodium Laureth Sulfate): Ether mixtures may contain carcinogenic nitrosamines. Avoid ethoxylated compounds as a precaution. May form 1.4 dioxane, a potential carcinogen, endocrine disruptor and estrogen mimic. Allows other chemicals to penetrate skin more deeply and enter bloodstream. May cause hair loss when applied to scalp. Found in shampoo, toothpaste, bubble bath, body wash, soap.
SLS (Sodium Lauryl Sulphate): Builds up in heart, lungs, brain and liver from skin contact and may cause damage to these organs. Corrodes hair follicles and may cause hair to fall out. Damages immune system. Contain endocrine disruptors and estrogen mimics. Impairs proper structural formation of young eyes. May contain carcinogenic nitrosamines. This is a detergent derived from coconut oil and may be labeled natural or even organic. Found in toothpaste, soap, shampoo, body wash, bubble bath, facial cleansers.
Sodium Benzoate: with the addition of vitamin C creates benzene (a known carcinogen)
Sodium Borate: Organ sytem toxicity
Sodium Chloride: Table salt (processed at high heat). Eye irritation, some hair loss, and dry and itchy skin. Found in shampoo as a thickener.
Sodium Hydroxide(Lye): Organ system toxicity; eye, skin and lung irritant and dangerous to work with. Once made into soap sodium hydroxide evaporates and you’re left with soap in that form it is NOT dangerous
Sodium Hydroxymethylglycinate: Potentially contaminated with or breaking down into chemicals linked to cancer or other significant health problems. Found in facial moisturizer, facial cleanser, facial treatments, skin fading and lightening products, anti-aging products, eye makeup remover, concealer, makeup remover, around eye cream, acne treatment, shampoo, conditioner, styling lotion and gel, styling mousse and foam, hair spray, hair relaxer, tanning oil and sunscreen, after tanning products, body cleanser and wash, body exfoliants, body firming lotion, baby soap, baby lotion, baby wipes, baby bubble bath, pain and wound products, hand sanitizer.
Sodium Metabisulfite: eye, lung and skin irritant; organ system toxicity;
Sodium Nitrite: Makes meat look red rather than gray, and gives meat an overly long shelf life of months. Clinically proven to cause leukemia, brain tumors and other forms of cancer.
Sorbic Acid: organ system toxicity
Stearalkonium Chloride: Toxic and causes allergic reactions. Used in hair conditioners.
Steareth-20: organ system toxicity
Steareth-4: organ system toxicity
Sulfites: Can cause reactions in asthmatics, and lead to death. Sulphites are now banned on all foods except raw potatoes, wine and dried fruit.
Talc: Similar to asbestos in composition, it’s found in baby powder, eye shadow, blush, deodorant. Linked to ovarian cancer and respiratory problems. Carcinogenic when inhaled
TEA: Tea, Triethanolamine: TEA causes allergic reactions including eye problems, dryness of hair and skin, and could be toxic if absorbed into the body over a long period of time. These chemicals are already restricted in Europe due to known carcinogenic effects (although still in use in the U.S.)
Tocopheryl Acetate: Its a form of synthetic vitamin E and can be a skin toxicant or allergen and possibly contaminated with hydroquinone which is both an environmental and human toxin. I’d choose products that use pure tocopheryl instead.
Toluene: Poison to humans. Hallucinations, bone marrow changes, may cause liver and kidney damage and birth defects, endocrine disruptor and potential carcinogen linked to brain cancer. Irritates respiratory tract. Found in nail polish and cleaning products. Known to disrupt the immune and endocrine systems, and fetal development, it’s used in nail and hair products. Often hidden under fragrance.
Triclosan: Found in a lot of antimicrobial soaps and toothpaste products, it can react with chlorine in the tap water to create Chloroform. This is a toxic chemical that can give you cancer. If you breathe enough chloroform, you can die. When you wash your hands with antibacterial soap that contains Triclosan, you are getting the fumes emitted from this chemical reaction. Avoid the brand Microban. Suspected endocrine disrupter and may contribute to antibiotic resistance in bacteria.
Vinyl chloride: Used to create PVC (polyvinyl chloride) a known carcinogen. Often found in toys. Children chewing on toys can release toxins into their bodies.
Zinc Stearate : Carcinogenic when inhaled. Found in blush and powder foundation, avoid loose powders to reduce inhaling it.