Tyrosinase

Aloin (Barbaloin) is a yellow crystalline substance obtained from aloe and is reported to be a potent inhibitors of tyrosinase.

Arbutin is a glycosylated hydroquinone used in traditional Chinese medicine (TCM). Arbutin inhibits melanin formation due to its tyrosinase inhibitory activity.

4-Butylresorcinol is a phenol derivative which can inhibit tyrosinase with IC50 of 11.27 μM.

MNS is a potent and selective inhibitor of Src and Syk tyrosine kinases.

Hydroxyacetic acid is a dermatologic agent. It has also been used as a plant-tissue based biosensor and chemiluminescence flow sensor.

SU 4942 is a tyrosine kinase signal transduction modulator, targeting VEGF and ECGF.

Tetrapeptide-30 is a skin-brightening peptide consisting of four amino acids. Tetrapeptide-30 can act as a tyrosinase inhibitor, lightening hyperpigmentation and evening out skin tone by reducing the amount of tyrosinase and inhibiting melanocyte activation.