Stearyl Alcohol is long chain fatty alcohol. Stearyl alcohol is prepared from stearic acid or some fats by the process of catalytic hydrogenation. It has low toxicity. Stearyl Alcohol is used in surface-active agents, lubricants, emulsions, resins, and USP ointments and as a substitute for cetyl alcohol and antifoaming agents. Stearyl Alcohol (synthetic) has been approved as a direct food additive (DFA) ingredient, to be used under the same manufacturing practices as the natrual alcohol product. It also has indirect food additive (IFA) status for use in food containers. Stearyl Alcohol is also used as an ingredient in over-the-counter (OTC) drugs of the miscellaneous external drug product category. It is considered to be safe at a concentration of 8 percent or less. Stearyl Alcohol is used in cosmetics as an emollient, stabilizer, antifoaming agent, emulsifier, and carrier. It is used as a water in oil (w/o) emulsifier to produce firm cosmetic products at ordinary temperatures.

on as chelating agents in cosmetics. Pentasodium Pentetate is readily soluble in water, but the corresponding free acid is not. Pentasodium Pentetate is used in almost 400 cosmetic products over a wide range of product categories, although it is mostly used in hair dyes and colors at use concentrations of 0.1% to 1.0%. Pentetic Acid and Pentasodium Pentetate inactivate metallic ions, such as calcium and magnesium, to maintain stability and appearance of cosmetic products. The inactivation of other metallic ions such as iron or copper also helps to prevent the oxidative deterioration of cosmetics and personal care products.

In cosmetics and personal care products, Benzoxiquine has been reported to be used in the formulation of hair tonics, dressings, and other hair grooming aids. Benzoxiquine is described as a biocide for use in cosmetic products. It is currently reported to be used in only one product. In a separate finding, the Food and Drug Administration determined that Benzoxiquine is not generally recognized as safe and effective in over-the-counter topical antifungal drug products. The only data available on the toxicity of Benzoxiquine indicates that it is mutagenic in the Ames test without metabolic activation. Because of the lack of data, the safety of Benzoxiquine could not be substantiated. The data needed to make a safety assessment include purity/impurities, ultraviolet absorption (if there is absorption, then photosensitization data will be needed), 28-day dermal toxicity, dermal teratogenicity, ocular irritation (if already available only), dermal irritation and sensitization, and two different genotoxicity studies (one using a mammalian system). If the latter data are positive, dermal carcinogenesis data using the methods of the National Toxicology Program will be needed. It cannot be concluded that Benzoxiquine is safe for use in cosmetic products until these safety data have been obtained and evaluated.

Dicobalt edetate was developed as a cyanide antidote based on the known ability of cobalt to form stable complexes with cyanide. One current cobalt-based antidote available in Europe is dicobalt-EDTA, sold as Kelocyanor. This agent chelates cyanide as the cobalticyanide. This drug provides an antidote effect more quickly than formation of methemoglobin. It can be very toxic and cause seizures, upper airway oedema, chest pain, hypotension, vomiting, rashes and dyspnoea especially in those who have not be exposed to cyanide.

Tyrosine (L-form) is a non-essential amino acid, which is primarily required for the protein synthesis. This amino acid is the precursor of dopamine, norepinephrine, and epinephrine; therefore the lower concentration of tyrosine could be a peripheral marker of the hyperdopaminergic condition hypothesized to explain psychosis. Tyrosine supplements can improve cognition, increase energy, reduce anxiety, reduce depression, reduce levels of pain.

Triacetin, also known as Glyceryl Triacetate, is a cosmetic biocide, plasticizer, and solvent in cosmetic formulations, at concentrations ranging from 0.8% to 4.0%. It is a commonly used carrier for flavors and fragrances. Triacetin was affirmed as a generally recognized as safe (GRAS) human food ingredient by the Food and Drug Administration (FDA). It is used as an inactive ingredient additive in some drug formulations. It has been used as a plasticizer in the tests of acrylic polymer films for drug delivery. Triacetin is not toxic to animals. However, in one study, it caused erythema, slight edema, alopecia, and desquamation, and did cause some irritation in rabbit eyes. Concentration of triacetin in consumer products is in the range of about 0.005-2 % for cosmetics, and has been reported to be as high as 15-33 % for one specific antifungal drug.

Trolamine, an organic compound, is the salt formed between triethanolamine and salicylic acid. It is widely used as a topical analgesic. 10% trolamine salicylate medical products sold over-the-counter such as are creams for temporarily relief of minor aches and pains of muscles and joints associated with arthritis, simple backache, lumbago, neuralgia, strains, bruises, and sprains. The FDA approved in 1958 otic solution drops containing triethanolamine polypeptide used in the ear to break down and loosen earwax was discontinued. Trolamine can enhance skin healing by recruiting macrophages and modifying the concentrations of various immunomodulators. Trolamine (Biafine; Genmedix Ltd, France) is commonly prescribed at the beginning of radiotherapy for preventing acute radiation-induced skin toxicity in China. Biafine has been studied in radiodermatitis and Phase 2 clinical trial has been initiated in 2016 by Sun Yat-sen University to establish the efficacy of trolamine (Biafine) for the management of radiation dermatitis in patients with nasopharyngeal carcinoma receiving IMRT.

Cyclamic acid (Cyclamate) is banned in the United States but it is used in many other Western countries without safety concerns. Cyclamate interacts with the sweet taste receptor subunit T1R3 transmembrane domain. Initially it was recommended for use in treatment of obese patients and by individuals with diabetes but in August 27, 1970 FDA concluded that there was no substantial evidence of effectiveness of cyclamate compounds at any level for treatment of obese patients and individuals with diabetes and therefore prohibited continued sale of cyclamate containing products with drug labeling. cyclamate is the putative carcinogenic agent. Cyclamate was tested in the Maximal Electroshock Seizure model (mice, ip), showing moderate anticonvulsant activity.

Piperazine, a six membered nitrogen containing heterocycle, is of great significance to the rational design of drugs. This moiety can be found in a plethora of well-known drugs with various therapeutic uses, such as antipsychotic, antihistamine, antianginal, antidepressant, anticancer, antiviral, cardio protectors, anti-inflammatory, and imaging agents. Slight modification to the substitution pattern on the piperazine nucleus facilitates a recognizable difference in the medicinal potential of the resultant molecules. Piperazine has been used as an antihelmintic drug. Piperazine works by paralyzing the worms. They are then passed in the stool.