Active ingredients: ethylhexyl p-methoxylcinnamate, octocrylene, oxybenzone (Coppertone, 2004)
Inactive ingredients: water, sorbitan oleate, glyceryl stearate SE, Isopropyl myristate, stearic acid, hydrogenated vegetable oil, octadecene/MA copolymer, triethanolamine, benzyl alcohol, fragrance, dimethicone, methylparaben, propylparaben, imidazolidinyl urea tocopherol (vitamin E), aloe extract, jojoba oil, carbomer, disodium EDTA
The SPF rating of a sunscreen is its Sun Protection Factor. The SPF of a sunscreen indicates the length of time a person can stay in the sun without burning, based on their skin complexion (Sun, 2006).
In Coppertone Moisturizing Sunscreen, the active ingredients ethylhexyl p-methoxylcinnamate, 2-ethylhexyl salicylate, octocrylene and oxybenzone are chemicals that act by absorbing ultraviolet A (UVA) and ultraviolet B (UVB) radiation which burns the skin and causes skin cancer (Sun/Ultraviolet, 2006). UVA accounts for roughly 90 percent of the ultraviolet radiation (UVR) reaching the earth. It has a wavelength of 320 nm to 400 nm. UVB accounts for roughly 10 percent of the UVR reaching the earth's surface. It has a wavelength of from 290 nm to 320 nm. UVB is 1000 times more potent at causing sunburn than UVA, but most of it is absorbed in the upper stratosphere and does not reach the earth. Salicylates, benzophenones and cinnamates absorb UVB radiation. Benzophenone compounds absorb UVB and wavelengths from 250 nm to 365 nm. Cinnamates can also absorb UVA radiation. The active ingredients in Coppertone Moisturizing Sunscreen work by absorbing the UVA and UVB radiation from the sun, helping to prevent sunburn and skin cancer.
Naltrexone, a narcotic antagonist, has the formula C20H23NO4 (Material, 2004). Its chemical name is 6 beta-Naltrexol, Pseudonalrexone, 14 dihydroxy-(5 alpha)-morphinan-6-one. Naltrexone is harmful if swallowed, causing respiratory tract irritation. It may cause ...