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Hyaluronic acid.

The list ofactive ingredientswe love slathering on our skin goes on.

Additionally, some skin-care active ingredients negate the effects or reduce the effectiveness of others.

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5 combinations of skin-care actives not to mix together

1.

How to exfoliate your face:

2.

Retinoids and hydroxy acids

Another active ingredient you shouldnt mix with your AHAs and BHAs?

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board-certified dermatologist in Northern California

Using AHAs and BHAs along with retinoids can cause excessive dryness, says Dr. Campbell.

Pay attention to ingredient labels to ensure youre not doubling down on the potent active.

Learn more about retinol here:

4.

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But when using them together, check with your dermatologist to ensure theyre compatible.

Certain retinoids can be deactivated by benzoyl peroxide, but not all, says Dr. Campbell.

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CeraVe Acne Foaming Cream Cleanser $14.00

5.

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Heres why vitamin C is so good for your skin:

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board-certified dermatologist in Northern California

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