8.3 Greasy Coat

Greasy coat is an observable skin-sebum output, not a root cause. Coat oiliness, clumping, flatness, and surface texture are output signals.

They do not prove that dietary fat is directly being excreted through skin. Backtrace through Sebum Processing Rate, Local Skin Environment, Fat Freshness Boundary, Ingredient State, and energy regulation to upstream food structure.

Synthesis, release, and surface expression pacing.

Friction, grooming, and follicle-adjacent conditions.

Long-term scheduling and tissue substrate context.

Upstream food-structure inputs.

upstream food structure

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energy regulation and digestive fat handling

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sebum processing rate and local skin environment

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greasy coat (observable output / backtrace entry)

Greasy coat is the output layer signal. Related indices and coat condition outputs share the same backtrace rules.