Because birth control operates on the endocrine (hormonal) system and collagen is a structural protein used by the musculoskeletal and integumentary systems, they occupy different lanes in your biology
Badenhorst T, Svirskis D, Merrilees M, et al
Water concentrations were calculated based on the volume fractions of white matter (WM), gray matter (GM), and cerebrospinal fluid (CSF), assuming their water concentrations as 35,880 mM, 43,300 mM, and 55,556 mM, respectively [52]
their potential to modulate GSH synthesis, iron homeostasis, or lipid peroxidation directly or indirectly has not been rigorously evaluated, leaving a gap in the amino acid-ferroptosis regulatory network
Currently, cell monolayer model (e.g., Transwell model) was widely used to verify the BBB crossing and calculate the penetration efficiency
Lutsenko S