Encapsulation Methods There are various ways retinol can be formulated, including different encapsulation methods. Retinol could be added to a formula under an inert gas or suspended in liquid form. It could also be encapsulated in microsponge polymers, cellulose/sugar-based beads or in silicone. Akridge points out that each encapsulation method comes with many studies showing the benefits of that particular encapsulation.
Similarly, Lee says that Glow Recipe's Avocado Melt Retinol Sleeping Mask, $49, and Avocado Melt Retinol Eye Sleeping Mask, $42, have time-released technology and encapsulated retinol. Per Chang, the retinol is housed in a polysaccharide shell that gently breaks down as it's absorbed into skin. The shell releases retinol within skin in smaller amounts versus traditional freeform retinol, which immediately releases the full bang upon contact with skin.
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