photoaging

Palmitoyl tetrapeptide-7 is a cosmeceutical peptide that stimulates type I collagen, fibronectin, and hyaluronic acid production in skin.1Formulations containing palmitoyl tetrapeptide-7 have been used in the treatment of photoaging, dark circles, and undereye puffiness. 1.Bucay, V.W., and Day, D.Adjunctive skin care of the brow and periorbital regionClin. Plast. Surg.40(1)225-236(2013)

Cycloheterophyllin has an antioxidant effect, it is a photoprotective agent that inhibits ultraviolet A (UVA)-induced oxidative stress and damage, and could be used in the research on and prevention of skin photoaging.

It is an isomer of cresotinic acid (2-hydroxy-3-methylbenzoic acid) and oxymethylbenzoic acid (2-methoxybenzoic acid). Derivatives of mandelic acid are formed as a result of metabolism of adrenaline and noradrenaline by monoamine oxidase and catechol-o-methyl transferase. It is also present in certain skin care products, is an intermediate molecule in the production of other biochemicals, may be used as an analytical reagent and is a precursor in the manufacture of dyes. Mandelic acid (acidomandelico) is found to be associated with phenylketonuria, which is an inborn error of metabolism.

1. Dalbergin (6-Hydroxy-7-Methoxy-4-Phenylcoumarin) exhibits similar bone conserving effect against bone-loss as estradiol treatment, it as a therapeutic candidate against postmenopausal osteoporosis. 2. Dalbergin prevents some effects of photoaging and maintain skin integrity by regulating the degradation of the extracellular matrix proteins.