Leave it on overnight to allow the cream to work its magic while you sleep
10.1080/2162402X.2017.1408746 13 BurkR
What makes niacinamide particularly special is its gentle nature it works effectively without causing irritation, making it suitable for virtually all skin types, including sensitive skin
Estrada et al, 2022
hypocalcemiainduced by various agentsHydrofluoric acidHydrofluoric acid skinexposure or poisoning;hypocalcemia induced byvarious agentsHydrofluoric acid dermalburnsCan cause tissue necrosisif extravasation occurs use large vein for infusion.For manufacture of topicalgelFor topical Hydrofluoricacid burns8 hours: 10 g or 10 vials (10 mL,10 %)24 hours: 10 g or 10 vials (10mL, 10 %)1 x 100g powder bottle8 hours: 30 g or 30 vials (10 mL,10 %)24 hours: 30 g or 30 vials (10mL, 10 %)6 x 25 g tubesHyperammonemia fromValproic acid toxicityUse IV8 hours: 10g or 10 x 1 g vials24 hours: 19 g or 19 x 1 g vialsIron poisoning IV Use ONLY 8 hours: 12 g or 6 x 2 g vials24 hours: 36 g or 18 x 2 g vialsDigoxin poisoning
It would take randomized, placebo-controlled trials in humans, ideally several, run in more than one country and by groups without a financial stake in the answer, measuring a pre-specified cognitive outcome rather than a grab-bag of secondary ones