However, the evidence is largely preclinical, and no large-scale human trial has confirmed meaningful hair regrowth, so they should be viewed as a supportive rather than proven restorative treatment
It helps lighten dark spots as well as slows the signs of aging on the skin
Blumberg RS, Koss T, Story CM, Barisani D, Polischuk J, Lipin A, et al
Manufacturing Standards Ensure that the product is manufactured in a facility that follows Good Manufacturing Practices (GMP)
As for skin-brightening, there is a trade publication with in-vivo data showing that SAP can fade brown spots
Approximately 1gm of each soil type was placed into the wells and watered with watering solution through capillary action by placing the plate into a container with the liquid just covering the bottom of the container (Paul et al., 2022)