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Page A-039
Troubleshooting common serum issues
Serum pills or rolls into little balls under makeup : wait a minute or two between layers, avoid rubbing vigorously, and check that your moisturiser and sunscreen are not too thick or silicone‑heavy on top of a richer serum.
Page A-042
Troubleshooting common winter serum issues
Serum seems to ball up or pill under sunscreen or makeup: Reduce the amount of each layer, wait longer between layers, and try pairing your serum with a simpler, non-silicone-heavy sunscreen in the morning.