Hello
Ascorbyl Tetraisopalmitate is already in the form of oil. No need to dissolve.
retinyl palmitate soluble in oil. By heating the oil to heat, stir until dissolved, then combine with the formula. For
retinyl palmitate The team recommends choosing it as
Retinaldehyde because it can act many times better than
Vitamin A the best kind allowed for use in cosmetics, yes.