However, dermatologists and nutrition experts increasingly emphasise that absorption matters more than dosage when it comes to supplements
the dermatologically acceptable carrier or vehicle e.g., as a lotion, cream, ointment, soap, stick, or the like Humectants typically present in amounts ranging from about 0.1% to about 5% by weight of the total composition include, but are not limited to, polyhydric alcohols such as glycerol, polyalkylene glycols (e.g., butylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, and polyethylene glycol) and derivatives thereof, alkylene polyols and their derivatives, sorbitol, hydroxy sorbitol, hexylene glycol, 1,3-dibutylene glycol, 1,2,6-hexanetriol, ethoxylated glycerol, propoxylated glycerol, and mixtures thereof
injections initially to rapidly replenish stores
Cells 8 , 187 (2019)