Oiliness & shine
The hardest concern to change fundamentally — sebum output is largely hormonal — but shine and congestion can be managed.
What has evidence, ranked
Sample products that cover it
From the demo catalog — ranked by their best evidence for oiliness.
The Ordinary
Niacinamide 10% + Zinc 1%
Early evidence
Honest note: stripping oil backfires
Aggressive degreasing damages the barrier and can trigger more oil and irritation. Evidence for topical 'sebum control' is thinner than marketing suggests — expect management, not transformation.
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