That said, these claims lack reliable research backing, with only a limited number of animal studies available
Enhanced substrate repeatability testing To evaluate the reproducibility of the enhanced response of the SEIRA substrate IR signal, the prepared AgNPs was mixed with glutathione solution (0.02 mg/mL) and other test conditions were the same
Adiponectin negatively regulates pigmentation, Wnt/-catenin and HGF/c-Met signalling within human scalp hair follicles ex vivo

the compositions disclosed herein may contain from about 0.1 to about 50 mg, from about 0.1 to about 45 mg, from about 0.1 to about 40 mg, from about 0.1 to about 35 mg, from about 0.1 to about 30 mg, from about 0.1 to about 25 mg, from about 0.1 to about 20 mg, from about 0.1 to about 15 mg, from about 0.1 to about 10 mg, from about 0.1 to about 5 mg, from about 0.5 to about 50 mg, from about 0.5 to about 45 mg, from about 0.5 to about 40 mg, from about 0.5 to about 35 mg, from about 0.5 to about 30 mg, from about 0.5 to about 25 mg, from about 0.5 to about 20 mg, from about 0.5 to about 15 mg, from about 0.5 to about 10 mg, from about 0.5 to about 5 mg, from about 1.0 to about 50 mg, from about 1.0 to about 45 mg, from about 1.0 to about 40 mg, from about 1.0 to about 35 mg, from about 1.0 to about 30 mg, from about 1.0 to about 25 mg, from about 1.0 to about 20 mg, from about the compositions disclosed herein will contain from about 0.1 mg, 0.2 mg, 0.3 mg, 0.4 mg, 0.5, mg, 0.6 mg, 0.7 mg, 0.8 mg, 0.9 mg, 1.0 mg, 2.0 mg, 3.0 mg, 4.0 mg, 5.0 mg, 7.0 mg, 10.0 mg, 15.0 mg, 20 mg, 25 mg, 30 mg, 35 mg, 40 mg, 45 mg, 50 mg, 60 mg, 70 mg, 80 mg, 90 mg or 100 mg of skin- lightening agent

Hussain N, Agardwala P, Iqbal K et al