Gold chloride (AUCl3), dihydrate, also called gold trichloride or auric chlorise, is a compound comprised of gold and chloride. It exists as a chloride-bridged dimer, both as a solid and as a vapor. AUCl3 is very hygroscopic and highly soluble in water and ethanol. It is used in organic chemistry as a mild acid catalyst and as a alternative to mercury salts. It is known to cause allergic reactions in subjects with known gold allergy.

Lutein is a xanthophyll and one of 600 known naturally occurring carotenoids. Lutein is synthesized only by plants and like other xanthophylls is found in high quantities in green leafy vegetables such as spinach, kale and yellow carrots. In green plants, xanthophylls act to modulate light energy and serve as non-photochemical quenching agents to deal with triplet chlorophyll (an excited form of chlorophyll), which is overproduced at very high light levels, during photosynthesis. Xanthophylls are taken for nutritional supplementation, and also for treating dietary shortage or imbalance. Xanthophylls have antioxidant activity and react with active oxygen species, producing biologically active degradation products. They also can inhibit peroxidation of membrane phospholipids and reduce lipofuscin formation, both of which contribute to their antioxidant properties. Lutein is naturally present in the macula of the human retina. It filters out potentially phototoxic blue light and near-ultraviolet radiation from the macula. The protective effect is due in part, to the reactive oxygen species quenching ability of these carotenoids. Lutein is more stable to decomposition by pro-oxidants than are other carotenoids such as beta-carotene and lycopene. Lutein is abundant in the region surrounding the fovea, and lutein is the predominant pigment at the outermost periphery of the macula. Zeaxanthin, which is fully conjugated (lutein is not), may offer somewhat better protection than lutein against phototoxic damage caused by blue and near-ultraviolet light radiation. Lutein is one of only two carotenoids that have been identified in the human lens, may be protective against age-related increases in lens density and cataract formation. Again, the possible protection afforded by lutein may be accounted for, in part, by its reactive oxygen species scavenging abilities. Carotenoids also provide protection from cancer. One of the mechanisms of this is by increasing the expression of the protein connexin-43, thereby stimulating gap junctional communication and preventing unrestrained cell proliferation. Lutein was found to be present in a concentrated area of the macula, a small area of the retina responsible for central vision. The hypothesis for the natural concentration is that lutein helps protect from oxidative stress and high-energy light. Several studies show that an increase in macula pigmentation decreases the risk for eye diseases such as Age-related Macular Degeneration (AMD). There is also epidemiological evidence that increasing lutein and zeaxanthin intake lowers the risk of cataract development. Consumption of more than 2.4 mg of lutein/zeaxanthin daily from foods and supplements was significantly correlated with reduced incidence of nuclear lens opacities, as revealed from data collected during a 13- to 15-year period in the Nutrition and Vision Project (NVP).

Tert-butylhydroquinone (tBHQ) or 2-(1,1-dimethylethyl)-1,4-benzenediol is an antioxdant found to inhibit lipid oxidation. Extensive studies have demonstrated that tBHQ exhibit anti-carcinogenic effect. The ability of tBHQ to induce phase II xenobiotic metabolizing enzymes through an Nrf2-dependent pathway is thought to be responsible for the observed protective effect of tBHQ. It has been proposed that tBHQ enhances Nrf2-mediated transcription by promoting reactive oxygen species-mediated dissociation of Nrf2-Keap1, Nrf2 stabilization, phosphatidylinositol 3-kinase (PI3K)/Akt activity, and MAPK pathway activation. tBHQ has been commonly used as a synthetic food additive to prevent oils and fats from oxidative deterioration and rancidity due to its potent anti-lipid peroxidation activity.

Borneol, a monoterpenoid alcohol, is a component of many essential oils. Barneol occurs in nature as a single enantiomer (d- or l-, depending on the oil type) or, less frequently, as the racemate. Several studies have proved the effectiveness of borneol. In Chinese medicines borneol has been used in relieving symptoms of anxiety, fatigue and insomnia; inducing anesthesia and analgesia to alleviate abdominal pain, wounds and burns; relieving rheumatic pain, hemorrhoids, skin diseases and ulcerations of the mouth, ears, eyes or nose; to treat sore throats and skin infections, and is mainly used to treat cardiovascular and cerebrovascular diseases. Borneol has a significant therapeutic effect on neuralgia. This compound is considered a GRAS approved by the FDA as food flavor. Additionally, borneol is a fragrance ingredient. GABAA, TRPV3, TRPM8 and TRPA1 have been identified as the molecular targets of borneol.

Isopropyl Myristate is a synthetic oil used as an emollient, thickening agent or lubricant in beauty products. Isopropyl Myristate is a popular cosmetic and pharmaceutical ingredient. It is most often used as an additive in aftershaves, shampoos, bath oils, antiperspirants, deodorants, oral hygiene products, and various creams and lotions.

Limonene is a naturally occurring chemical which is used in many food products, soaps and perfumes for its lemon-like flavor and odor. Limonene also is a registered active ingredient in 15 pesticide products used as insecticides, insect repellents, and dog and cat repellents. Pesticide products containing limonene are used for flea and tick control on pets, as an insecticide spray, an outdoor dog and cat repellent. It has also been used for relief of heartburn and gastroesophageal reflux (GERD). D-limonene has well-established chemopreventive activity against many types of cancer. Limonene and its oxidation products are skin and respiratory irritants.