In the past, FDA has declined to add these substances to the bulk compounding list because of safety and/or efficacy concerns
For example, signs of premature skin aging such as wrinkles, age spots and decreased elasticity can be detected as early as your 20s or 30s, but that doesnt have to be the case
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Three cell populations matter most for hair: dermal papilla cells (the population at the base of the follicle that orchestrates the growth cycle), keratinocytes (the cells that build the hair shaft itself), and fibroblasts (the connective-tissue cells that support the surrounding scalp matrix)
Calder, 2020
Koniver greeted me in his waiting room, which featured a soft-rock soundtrack and brochures for serums and stem cells