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Troubleshooting common serum issues
No visible change after two or three months: confirm that you are using the serum most days, pairing it with daily sunscreen, and giving it at least 8–12 weeks; if there is still no difference, you may need a different active ingredient or a dermatologist’s help with stronger options.
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How to introduce a new serum safely
Avoid changing everything at once When you add a new serum, keep the rest of your routine simple and familiar for at least two weeks. That way, if your skin reacts, it is much easier to tell whether the serum is the problem.