Let’s look at another cheaper drugstore retinol product -- Cerave skin renewing cream serum! The product claims to use ‘MVE’ technology. @myminimalistbeauty pointed out rightly that concentration is definitely just one part of the equation in figuring out whether or not a product works as advertised. Another aspect that plays into its formulation is the delivery vehicle! Cerave’s MVE stands for ‘multi-vesiclular emulsion’. There are tiny little concentric circles that can encase actives like retinol and are formed mainly by things like lecithin, a phospholipid that’s similar to the components of our cell’s lipid bilayer structure #highschoolbiologyftw . MVE has been shown to deliver actives effectively yet gently because of it’s ability to both protect the encased active being delivered and also protect the outside environment (our skin) from the active’s possible irritation . It has been studied to deliver 6% salicylic acid (that’s really high!) without irritation. Seems like a match made in heaven with the problem child retinol!
Alas, we must confess, we like the science of delivery systems and encapsulation, but find it difficult to evaluate the merits of each one. A lot of this technology is protected proprietary knowledge, and the processing and industrialization of this can sometimes be complex. SO any Cerave fans out there? Encapsulated retinol experiences? #outsmartingretinolproblems #weekendscience #retinolmysteries