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CLINICAL MECHANISM DOSSIER

Excess Sebum & Shiny T-Zone

Hyperactive sebaceous glands producing excessive liquid squalene, triglycerides, and wax esters across the forehead, nose, and chin.

UNDERLYING PATHOPHYSIOLOGY

Biological Mechanism

Sebocytes are regulated by circulating dihydrotestosterone (DHT) binding to androgen receptors. Excess sebum oxidizes upon exposure to ambient air, contributing to follicular congestion and visible light reflection. Active management focuses on enzymatic sebum suppression and lipid dissolution without stripping native barrier lipids.

FIRST-LINE EVIDENCE

Primary Recommended Actives

Niacinamide

ROLE: Sebum Excretion Rate Regulator
Ingredient profile →

Down-regulates de novo sebaceous lipogenesis and reduces total surface lipid levels after 2 to 4 weeks of consistent application.

Salicylic Acid (BHA)

ROLE: Sebum Miscibility Exfoliant
Ingredient profile →

Dissolves within sebum, preventing follicular duct blockages and clearing excess oil.

COMPLEMENTARY MODALITIES

Secondary & Supporting Actives

Centella & Ectoin

Profile →
Non-Lipidic Hydration Shield

Provides essential moisture without adding triglycerides or heavy esters.

CONTRAINDICATIONS & PITFALLS

Ingredients & Approaches to Avoid

Over-cleansing with high-pH sulfate foaming washes
Stripping native ceramides triggers compensatory rebound hyper-seborrhea.
CADENCE PROTOCOL

AM & PM Application Strategy

MORNING (AM)

Photoprotection & Defense

Oil control: Gentle pH-balanced cleanser + Niacinamide 2–5% + Lightweight fluid gel SPF.

EVENING (PM)

Targeted Cellular Repair

Pore clearing: Salicylic acid alternating with light oil-free hydrators.

COMMON INQUIRIES

Frequently Asked Questions

Does dehydrated skin produce more oil?

Yes. When the stratum corneum barrier is dehydrated, the skin often responds by pumping excess sebum to compensate for the missing water barrier.

CONFLICT & INTERACTION ENGINE

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