Dew Point Math for Humectants

Dew Point Math for Humectants. We’ll cut through hype and show you what reliably moves the needle.

Your best routine is boring in a good way—same steps, small tweaks for climate and porosity, and predictable results.

Steps

  1. Dry hands-off; break the cast only when fully dry
  2. Apply leave-in on soaking-wet hair
  3. Detangle with water + conditioner in sections

Toolkit

“Balance humectants with film-formers when dew points rise.”

Example

For winter: reduce humectants, use richer emollients, and seal ends lightly; diffuse on low heat to avoid damp frizz.

Science angle: porosity governs water movement; humectants pull moisture; film-formers create a cast; proteins patch weak spots temporarily.

Porosity & Climate Notes

FAQ

Do I need protein weekly? Only if hair feels overly soft/stretchy; otherwise rotate monthly.

How long to deep condition? 10–20 minutes under a cap is usually enough.


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