This acidity helps maintain the balance of the skins natural oils and protect it from harmful bacteria.35 Because of this, experts recommend using topicals with a more acidic pH, as alkaline products may negatively impact your skins health.36 37 Since The Ordinary Multi-Peptide + Copper Peptides 1% Serum is at least a little acidic, it should be okay for most people, but this may explain why some customers complain about poor skin reactions after using it
There is no Phase 1 trial, no toxicology dossier, no characterized human dose, and no adverse-event registry
Vitamin B12 is essential for healthy nerve function, red blood cell formation, and DNA synthesis
This is why it is used as a topical hair treatment
Journal of Orthopaedic Research, 33 (7), 1024-1033
This is not an overnight fix it is a gradual, cumulative improvement