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Very helpful. Thanks.
Is there a serum or a product that allies vitamin c and azelaic acid ?
What about Tranexamic acid?
Dr. Sam, can you please explain to me why since I’ve started using Tretanoin my skin cannot tolerate niacinamide? I have used SkinFix for over a year and now it burns. Thank you
What percentage of azelaic acid helps pigmentation?
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Very helpful. Thanks.
Is there a serum or a product that allies vitamin c and azelaic acid ?
What about Tranexamic acid?
Dr. Sam, can you please explain to me why since I’ve started using Tretanoin my skin cannot tolerate niacinamide? I have used SkinFix for over a year and now it burns. Thank you
What percentage of azelaic acid helps pigmentation?