There's a lot of breathwork apps out there that can assist with this
The rate of closure was three times faster with lamin Gel, particularly for larger ulcers (greater than 100 mm), which showed an 89.2% closure compared to -10.3% for the control
North American Journal of Medical Sciences
However, the amount needed can change based on your health, diet, and age
Dev Neurosci 32:335342 Kochanek PM, Carney N, Adelson PD, Ashwal S, Bell MJ, Bratton S, Carson S, Chesnut RM, Ghajar J, Goldstein B, Grant GA, Kissoon N, Peterson K, Selden NR, Tasker RC, Tong KA, Vavilala MS, Wainwright MS, Warden CR (2012) Guidelines for the acute medical management of severe traumatic brain injury in infants, children, and adolescentssecond edition
Inverse relationship between vitamin D levels and platelet indices in Korean adults