Antioxidant
The term Antioxidant generally refers to compounds that are used to stop the free radical lipid oxidation process. The phenolic AOs BHT (butylated hydroxytoluene) and BHA (butylated hydroxyanisole) are the most important ingredients presently used. They act as radical scavengers, strongly inhibiting radical chain reactions.
Metal ions catalyze radical generation and product deterioration. Therefore, chelating agents are often combined with phenolic antioxidants to form synergistic mixtures, enhancing the efficacy of the specific free radical scavengers.
Product deterioration is not only due to oxidative radical generation (autoxidation), which is most prominent in the case of natural oils, unsaturated fatty acids, and certain fragrances. Direct exposure to light can also result in photolytic radical generation, which has to be efficiently controlled using antioxidants. Therefore, products filled in transparent or translucent packaging and preparations directly exposed to light during use (e.g., bar soaps) often contain antioxidants as protectants.
Moreover, UVs can be used in these cases to reduce the degree of photolysis. Generally, water—and/or oil-soluble benzophenone derivatives are applied. If not, photofading of colored formulations, reduction of viscosity in gels and shampoos, and loss of fragrance activity are often observed.After application, antioxidants in personal care products protect cell membranes and DNA in the nucleus from free radicals and oxidative damage. Many botanical extracts and oils, especially those derived from plants growing in extreme conditions, contain considerable amounts of potent natural antioxidants effective against many types of reactive species.
Resorcinol, or 1,3 dihydroxybenzene, is a common chemical intermediate that finds utility in applications ranging from wood glue resins, leather dyes, pharmacology, and permanent hair-coloring products.
Resveratrol Dimethyl Ether (Pterostilbene) is a phytoalexin found in grapes and berries. Structurally close to resveratrol and exhibiting similar properties, it is one of the primary antioxidant elements of blueberries.
Reticap is a polymeric microencapsulated retinol specifically designed to keep its activity due to the stability enhancement in its formulation. This complex is a stable aqueous dispersion.
Retinyl Acetate is a vitamin A ester with acetic acid, an active ingredient for skin and oral care applications. It is an oily yellow liquid at room temperature (it may contain some crystals of vitamin A acetate) with a mild odor.
Retinyl Palmitate/Carrot Polypeptide is an ingredient known under the trade name Vitazyme™ A. It is a retinyl palmitate polypeptide conjugate, where retinyl palmitate bonded covalently with a natural polypeptide derived from a carrot.
Revital Eyes is a specialized botanical complex for eye care applications with anti-aging, anti-wrinkle, anti-dark circles, and undereye bag effects. It is a balanced formula with four active ingredients: probiotics, Green tea and Pomegranate extracts, and Caffeine.
Rhodiola rosea, also known as Arctic root or Golden root, is a member of the Crassulaceae family, a family of plants native to the Arctic regions of Eastern Siberia and grows at high altitudes.
Rhus Semialata is one of two distinct varieties of Rhus chinensis (Chinese sumac), a shrubby tree growing in East and South Asia.
It is thought that the Greeks first brought the rose from Greece to southern Italy. They believed the red rose came from the blood of the goddess Aphrodite, whose foot got stuck in a thorn while trying to help Adonis.
Rosa Rubiginosa Seed Oil is an emollient oil obtained from the seed of a rosehip species known as Rosa Mosqueta. It is a low-viscosity yellow to amber liquid with a characteristic odor, which has a mark-improving effect on the skin and hair.
Rosemary (Rosmarinus Officinalis) essential oil is obtained by steam distillation. This essential oil has properties: stimulant, diaphoretic, carminative, nervine, aromatic, cephalic antispasmodic.
Rosemary (Rosmarinus Officinalis) was thought to possess extraordinary powers of protection against evil spirits and demons. It was also a symbol of remembrance, friendship, and love.
The milky-white gelatinous substance of Royal Jelly is secreted in the salivary glands of worker bees for the sole purpose of stimulating the growth and development of queen bees.
Saccharomyces Lysate Extract is produced by exposing cells of Saccharomyces cerevisiae to hydrogen peroxide. It has been well established that introducing stress in the form of heat or UV radiation to yeast cell cultures will promote the formation of tissue respiratory factors (TRF).
Germanium has been included for its free radical scavenging properties and ability to improve oxygen utilization.
Saccharomyces/Selenium Ferment is a biotechnological ingredient derived from the fermentation of living yeast cells in a Selenium ion-containing medium. It is a mineral-glycopeptides complex known under the trade name the Acqua-Biomin® Selenium Y3.
Saccharomyces/Zinc Ferment is a biotechnological ingredient derived from the fermentation of living yeast cells in a zinc ion-containing medium. It is a mineral-glycopeptides complex known under the trade name the Acqua-Biomin® Zinc Y3.