Hexylene glycol is a small molecular weight surfactant. Hexylene Glycol is a solvent and viscosity agent used in many skin care products. Hexylene Glycol is a solvent and viscosity agent used in many skin care products. It is used to thin out heavy compositions and create a thinner, more spreadable product. Hexylene Glycol is a solvent and viscosity agent used in many skin care products. Hexylene glycol is used in the formulation of hair and bath products, eye and facial makeup, fragrances, personal cleanliness products, and shaving and skin care products. Hexylene glycol is widely used in the coating industry as a component for lacquers, varnishes, printing inks and both oil and water-based paints. Although the FDA has approved Hexylene Glycol and the CIR found it an acceptable solvent in skin care products, some studies have shown that it is an irritant.

Levomenol, or more formally α-(−)-bisabolol or (-)-alpha-bisabolol was identified as a major constituent of Salvia runcinata essential oil, a plant indigenous to South Africa. This compound exhibits pharmacological properties such as analgesic, antibiotic and anticancer activities. Mutagenicity and genotoxicity of bisabolol have also been investigated. Due to the low toxicity associated with bisabolol the Food and Drug Administration (FDA) has granted this constituent with Generally Regarded as Safe (GRAS) status, which has promoted its use as an active ingredient in several commercial products. Recently provided experiments have shown the anti-amyloidogenic potential and anti-apoptotic property of the α-bisabolol against Aβ25-35 induced neurotoxicity in PC12 cells. This compound prevented the oligomers formation as well as disaggregates the matured fibrils. It is known, that of the multiple etiological factors of Alzheimer's disease (AD), the accumulation of senile plaques (SPs) particularly as Aβ oligomers correlates with the relentlessness cognitive impairment in AD patients and play a vital role in AD pathology. As a conclusion obtained properties of α-bisabolol allowed suggesting, that this compound could be used as an excellent therapeutic drug to combat AD. Besides, anti-cancer activity of α-bisabolol was also studied. α-Bisabolol inhibited invasiveness and motility in pancreatic cancer through kisspeptin 1 receptor (KISS1R) activation. Further investigations are necessary to clarify the precise mechanisms of α-bisabolol activity for clinical application as a novel treatment for pancreatic cancer.

Bemotrizinol (INN/USAN, INCI bis-ethylhexyloxyphenol methoxyphenyl triazine) is an oil-soluble organic compound that is added to sunscreens to absorb UV rays. It is marketed as Tinosorb S by BASF and as Escalol S by Ashland Inc. Bemotrizinol is a broad-spectrum UV absorber, absorbing UVB as well as UVA rays. It has two absorption peaks at 310 and 340 nm. It is highly photostable. Even after 50 MEDs (minimal erythemal doses) 98.4% remains intact. It helps prevent the photodegradation of other sunscreen actives like avobenzone. Furthermore, its presense can at least partially protect less photostable UV blockers (e.g. UVA-blocker avobenzone) from degradation. It is approved in Europe and Australia but not in the USA. Unlike some other organic sunscreen agents, bemotrizinol has not been shown to have hormone-like (estrogenic) effects in cell cultures. Bemotrizinol appears to be relatively non-toxic and rarely causes skin irritation. However, as with many synthetic chemicals, it is unclear whether bemotrizinol may produce low-level skin damage and/or systemic effects with long-term use.

Tylosin (trade names Tylocine, Tylan) is a bacteriostat feed additive used in veterinary medicine. It has a broad spectrum of activity against Gram-positive organisms and a limited range of Gram-negative organisms. It is found naturally as a fermentation product of Streptomyces fradiae. It is a macrolide antibiotic. Tylosin is used in veterinary medicine to treat bacterial infections in a wide range of species and has a high margin of safety. Tylosin is certified by the FDA but is only approved for use in livestock such as cattle, chickens, swine, and turkeys. The FDA has prohibited the use of tylosin in dogs and cats, except where it is specifically prescribed by a veterinarian. Tylosin has a bacteriostatic effect on susceptible organisms, caused by inhibition of protein synthesis through binding to the 50S subunit of the bacterial ribosome.

O-Cymen-5-OL is an antifungal preservative used in cosmetics and beauty products to prevent harmful bacteria from developing and to prolong the shelf-life of formulas. It is part of the Isopropyl Cresols family and is originally developed synthetically in the form of a crystal. O-Cymen-5-OL is also used as a cosmetic biocide, or ingredient that helps to cleanse the skin or to prevent odor by destroying or inhibiting the growth of microorganisms, according to research. O-Cymen-5-OL is approved by the FDA for use as a direct and indirect food additive and has been approved by the CIR for use in cosmetics up to .5% concentration. However, in the European Union, it is only approved for use up to .1%. Studies in Japan, some dating back to 1956, found O-Cymen-5-OL to be neurotoxic in animals and have led to heavier restrictions on its use in cosmetics there. O-Cymen-5-OL (Dekasol BL) is used in oral care, to fight periodontal disease.