Crest Hd Sensitive + Whitening Two-Step Toothpaste

Aqua

Helps dissolve other soluble ingredients. Helps the mechanical process of cleaning teeth in mouthwashes.

Carbomer

Cellulose Gum

Sodium carboxymethylcellulose is generally recognized as safe (GRAS) when used in accordance with good manufacturing practice in food for human consumption.

Disodium Pyrophosphate

SAPP is generally recognized as safe when used in accordance with good manufacturing practice  and can be used as a color or coloring adjunct, dough strengthener, emulsifier or emulsifier salt, flavoring agent or adjuvant, flour treating agent, formulation aid, leavening agent, oxidizing or reducing agent, and sequestrant in food.

Flavor

Fluoride

Fluoride-containing compounds, such as sodium fluoride or sodium monofluorophosphate are used in topical and systemic fluoride therapy for preventing tooth decay. They are used for water fluoridation and in many products associated with oral hygiene. Originally, sodium fluoride was used to fluoridate water; hexafluorosilicic acid (H2SiF6) and its salt sodium hexafluorosilicate (Na2SiF6) are more commonly used additives, especially in the United States. The fluoridation of water is known to prevent tooth decayand is considered by the U.S. Centers for Disease Control and Prevention as "one of 10 great public health achievements of the 20th century". In some countries where large, centralized water systems are uncommon, fluoride is delivered to the populace by fluoridating table salt. For the method of action for cavity prevention, see Fluoride therapy. Fluoridation of water has its critics (see Water fluoridation controversy).

⚠⚠⚠

Fluoride toxicity is a condition in which there are elevated levels of the fluoride ion in the body. Although fluoride is safe for dental health at low concentrations, sustained consumption of large amounts of soluble fluoride salts is dangerous. Referring to a common salt of fluoride, sodium fluoride (NaF), the lethal dose for most adult humans is estimated at 5 to 10 g (which is equivalent to 32 to 64 mg elemental fluoride/kg body weight). Ingestion of fluoride can produce gastrointestinal discomfort at doses at least 15 to 20 times lower (0.2–0.3 mg/kg or 10 to 15 mg for a 50 kg person) than lethal doses.[4] Although it is helpful topically for dental health in low dosage, chronic ingestion of fluoride in large amounts interferes with bone formation. In this way, the most widespread examples of fluoride poisoning arise from consumption of ground water that is abnormally fluoride-rich.

Glycerin

Glycerol (also called glycerine or glycerin) is a simple polyol compound. Glycerin is mildly antimicrobial and antiviral and is an FDA approved treatment for wounds. The Red Cross reports that an 85% solution of glycerin shows bactericidal and antiviral effects, and wounds treated with glycerin show reduced inflammation after roughly 2 hours. Due to this it is used widely in wound care products, including glycerin based hydrogel sheets for burns and other wound care. It is approved for all types of wound care except third degree burns, and is used to package donor skin used in skin grafts. There is no topical treatment approved for third degree burns, and so this limitation is not exclusive to glycerin. Glycerol is used in medical, pharmaceutical and personal care preparations, often as a means of improving smoothness, providing lubrication, and as a humectant. In toothpastes Glycerol holds onto water and prevents the toothpaste from drying out in the tube, and also prevents dryness in the mouth during brushing. It can help reduce bacterial activity by reducing the available water activity and therefore has a protective action against tooth decay. Glycerin does not damage gums or tooth enamel.

⚠

Glycerin as ingredient of foods,cosmetic products ,toothpaste and ...may cause : Upset stomach, Stomach cramps, Gas, Diarrhea, Burning, Rectal irritation. Glycerin does not damage gums or tooth enamel.

Hydrated Silica

Hydrated silica is listed by the US Food and Drug Administration as "Generally Recognized as Safe", however one drawback of  abrasives in toothpaste is that they may make some people's teeth sensitive, especially if they brush very hard and do not brush with a soft-bristled toothbrush. The dentin and the pulp that lie beneath the enamel are sensitive, says the  American Dental Association (ADA), so that why it's key to have a strong enamel.

Hydrogen Peroxide

Redness, stinging, or irritation at the application site may occur. If any of these effects persist or worsen, contact your doctor or pharmacist promptly. A very serious allergic reaction to this product is rare. However, seek immediate medical attention if you notice any of the following symptoms of a serious allergic reaction: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

Mica

Almost every single brightly colored bath bomb on the market that advertises being natural has Mica listed as the colorant. I wanted to know exactly what it was before I blindly put it in a bath product. I learned right away that there are two types of Mica, naturally mined Mica vs synthetically made Mica. In both cases, I found that the main health concern for Mica exposure is pneumoconiosis, or disease of the lungs caused by inhalation of dust, and characterized by coughing, inflammation, and fibrosis. The most at risk for this are of course the miners onsite digging the mineral out of the depths of the earth, and the laborers on the factory line dropping Mica into mass produced products for 8 hours a day. Since Mica is ground into a nanoparticle, its composition allows it to penetrate through layers of skin and even seep into the lungs. Currently, the FDA does not have legal means to require testing for the amount of Mica we can “safely” be in contact with. So when it comes to answering the question “is Mica safe for skin?” I believe the answer is - we don’t know. It is important to remember that just because something is natural, does not necessarily mean it is safe. Plenty of toxins are “natural” and we would never dream of putting them on our skin.

Sodium Gluconate

⚠⚠

Whole Foods has deemed the ingredient acceptable in its body care and cleaning product quality standards. The National Institutes of Health report that the ingredient is not a skin or eye irritant, and the FDA has deemed it Generally Recognized as Safe.

Sodium Hydroxide

⚠⚠⚠⚠⚠

Contact causes severe burns with redness, swelling, pain and blurred vision. Permanent damage including blindness can result. Ingestion: Can burn the lips, tongue, throat and stomach. Symptoms may include nausea, vomiting, stomach cramps and diarrhea.

Sodium Lauryl Sulfate

⚠⚠⚠

The Food and Drug Administration (FDA) regards SLS as safe as a food additive. Regarding its use in cosmetics and body products, the safety assessment study of SLS, published in 1983 in the International Journal of Toxicology (the most recent assessment), found that it’s not harmful if used briefly and rinsed from the skin, as with shampoos and soaps. The report says that products that stay on the skin longer shouldn’t exceed 1 percent concentration of SLS. However, the same assessment did suggest some possible, albeit minimal, risk to humans using SLS. For example, some tests found that continuous skin exposure to SLS could cause mild to moderate irritation in animals. Nevertheless, the assessment concluded that SLS is safe in formulations used in cosmetics and personal care products. Because many of these products are designed to be rinsed off after short applications, the risks are minimal. According to most research, SLS is an irritant but not a carcinogen. Studies have shown no link between the use of SLS and increased cancer risk. According to a 2015 study, SLS is safe for use in household cleaning products.

Sodium Saccharin

⚠⚠⚠⚠

In the 1970s, studies performed on laboratory rats found an association between consumption of high doses of saccharin and the development of bladder cancer. However, further study determined that this effect was due to a mechanism that is not relevant to humans.Epidemiological studies have shown no evidence that saccharin is associated with bladder cancer in humans.The International Agency for Research on Cancer (IARC) originally classified saccharin in Group 2B ("possibly carcinogenic to humans") based on the rat studies, but downgraded it to Group 3 ("not classifiable as to the carcinogenicity to humans") upon review of the subsequent research. Saccharin has no food energy and no nutritional value. It is safe to consume for individuals with diabetes. People with sulfonamide allergies can experience allergic reactions to saccharin, as it is a sulfonamide derivative and can cross-react. Saccharin in toothpaste can cause burning sensations, swelling, and rashes of the mouth and lips in sensitive individuals.

Sucralose

⚠⚠

Some of the most commonly reported adverse effects include: Gastrointestinal problems. Seizures, dizziness, and migraines. Blurred vision. Allergic reactions. Blood sugar increases and weight gain.

Titanium Dioxide

⚠⚠

Main Routes of Exposure: Inhalation; skin contact; eye contact. Inhalation: At high concentrations: can irritate the nose and throat. Skin Contact: May cause mild irritation. Eye Contact: May cause slight irritation as a "foreign object". Tearing, blinking and mild temporary pain may occur as particles are rinsed from the eye by tears. Ingestion: Not harmful. Effects of Long-Term (Chronic) Exposure: Conclusions cannot be drawn from the limited studies available. Carcinogenicity: Possible carcinogen. May cause cancer based on animal information. Has been associated with: lung cancer.

Trisodium Phosphate

⚠⚠⚠⚠

Trisodium phosphate side effects also include intestinal and stomach lining irritation, and lactic acid reduction in muscles. Side effects from trisodium phosphate poisoning via accidental ingestion or inhalation of the chemical include breathing difficulties, coughing, and throat pain and swelling.

Xanthan Gum

⚠⚠

For most people, eating foods that contain xanthan gum appears to be completely safe. While many foods contain it, it only makes up about 0.05–0.3% of a food product. Moreover, a typical person consumes less than 1 gram of xanthan gum per day. Amounts 20 times that have been proven to be safe. In fact, the Joint Expert Committee on Food Additives assigned it an acceptable daily intake of “not specified.” It gives this designation when food additives have a very low toxicity, and levels in foods are so small that they do not pose a health hazard. But people should avoid inhaling xanthan gum. Workers who handled it in powder form were found to have flu-like symptoms and nose and throat irritation. So even though you may eat many foods containing it, your intake is so small that you’re unlikely to experience either benefits or negative side effects.

Zinc Lactate