To be efficient, therefore, a propellant should have a large heat of combustion to yield high temperatures, and should produce combustion products containing simple, light molecules embodying such elements as hydrogen (the lightest), carbon, oxygen, fluorine, and the lighter metals (aluminum, beryllium, lithium).
Vitamin A - Retinyl Palmitate/ Retinol. Vitamin A is a fat soluble vitamin that is stored in our liver. It contributes to normal growth and development while keeping our eyes, skin and immune system healthy. Vitamin A plays a key role in maintaining health.
1 Retinol is a cosmetic ingredient that any cosmetics company can include in its products. 2  It does not require a prescription. 3  Other effective forms of cosmetic-grade vitamin A that you'll see in cosmetics include retinyl acetate, retinyl palmitate, and retinaldehyde, among others.