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The quick reply? Serums go first, little doubt about it. “It is best to layer lighter merchandise like serums earlier than heavier merchandise like moisturizers,” board-certified dermatologist Hadley King, M.D. tells mbg.
It is because moisturizers comprise some occlusive substances, which assist them entice moisture within the pores and skin however forestall different substances from penetrating. So when you layer on a serum over your face cream, the probability of your pores and skin absorbing that product and thus reaping the entire advantages is slim.
Nonetheless, there may be one caveat right here: “If you wish to lower the efficiency of a serum—like if it comprises doubtlessly irritating substances like retinol or salicylic acid, then making use of a moisturizer first might assist make the serum much less potent and fewer irritating,” King notes.
This system is also known as the “retinol sandwich,” the place you layer moisturizer below and over your retinol to buffer the impact. However must you do that with different serum substances like hyaluronic acid, niacinamide, and vitamin C? No, except you suppose these serums may set off a unfavourable response from the pores and skin (which is fairly unlikely for most individuals).
In actual fact, the deeper these substances can penetrate, the higher. So to sum all of it up: Probably irritating serums might be buffered by utilizing a moisturizer earlier than and after, however in any other case, all serums ought to be utilized first.
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